OMS1664 Topic 4 - 1_3Installation&Commissioning

OMS1664 T o p i c 4 : In In s t a l la lat i o n a n d C o m m i s s i o n i n g Releas e 1.3 1.3

THIS DOCUMENT IS UNCONTROLLED UNCONTROLLED WHEN PRINTED

Table of Contents Cont ents Table of Contents...........................................................................1 List of Figures ................................................................................ 5 List of Tables..................................................................................9 Chapter 1: Installation ................................................................. 11 1.1 1.1

OMS1 OMS166 664 4 Inst Instal alla latio tion n Sequ Sequen ence ce ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 11 1.1.1 .1.1

Inst Instal alll Rac Rack k - Rai Raise sed d Modu Modula larr Floo Floor r ................................................... ................................................... 11

1.1. 1.1.2 2

Fitt Fitting ing Doub Double le Chann Channel el,, Drop Drop Rods Rods and ‘U’ ‘U’ Bracket Brackets s .... ...... .... .... .... .... .... .... .... .... .... .. 15

1.1. 1.1.3 3

Inst Instal alla lati tion on Unde Underr Ov Over erhe head ad Iron Ironwo work rk ................................................ ................................................ 18

1.1.4

Fit EF80 .............................................................................................. . ............................................................................................. 20

1.1.5 1.1.5

Cable Cable and Fibre Fibre Manag Managemen ementt Devi Devices..... ces........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 21

1.1.6 1.1.6

Cable Cable Bracket..... Bracket........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 21

1.1.7 1.1.7

Fibre Fibre Spools Spools ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 23

1.1.8 1.1.8

Cable Cable Brake-ou Brake-outt Bracket Bracket ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 24

1.1.9 1.1.9

Cable Cable Management Management Bars..... Bars........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 24

1.1.10

Installing Installing OMS 1664 Subrack............ Subrack.................. ............ ........... ........... ........... ........... ............ ........... ......... .... 26

1.1.11

Installing Installing OMS 1654 Subrack............ Subrack.................. ............ ........... ........... ........... ........... ............ ........... ......... .... 28

1.1.12

Fan Tray Installation......... Installation............... ............ ............ ........... ........... ........... ........... ............ ........... ........... ........... ......... .... 30

Marconi Copyright- Refer to title page

Topic 4 Page 1

1PHA60131AAV Issue 04

OMS1664 Product Family Release 1.3

1.2 1.2

1.3 1.3

Installation and Commissioning Contents

1.1.13

Slide in Unit Insertion/Re Insertion/Removal moval ........... ................. ........... ........... ........... ........... ............ ............ ........... ....... .. 31

1.1.14

Slide in Unit Handling Handling ........... ................. ........... ........... ............ ........... ........... ........... ........... ........... ........... ........... ....... 31

1.1.15

Installation Installation Procedure........ Procedure.............. ........... ........... ........... ........... ........... ........... ............ ............ ............ ............ ........ .. 32

1.1.16

SIU Extraction/In Extraction/Insertio sertion......... n............... ........... ........... ............ ............ ............ ........... ........... ........... ........... .......... .... 33

DC Power Power And Eart Earthin hing g ..... ........ ...... ..... ..... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 35 1.2.1 1.2.1

Genera Generall ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 35

1.2.2 1.2.2

Instal Installl DC Cables... Cables...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 37

1.2.3 1.2.3

Prepar Preparatio ation n of ETSI Fuse Fuse Rail... Rail...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 41

1.2.4 1.2.4

Prepari Preparing ng Sub-Rac Sub-Rack k Power Power Leads Leads to DC Rail Rail ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 43

1.2.5 1.2.5

Earthi Earthing ng ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 44

1.2.6 1.2.6

Subrac Subrack k Fan Tray ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 45

1.2.7 1.2.7

Fan Tray Tray Power Power Supply...... Supply......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 47

1.2.8 1.2.8

Cable Cable Routin Routing..... g........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 48

1.2.9 1.2.9

Fan Fusing.. Fusing..... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 48

Cabl Cablin ing g and and Term Termin inati ating ng Copp Copper.... er....... ...... ...... ...... ...... ...... ...... ..... ..... ...... ...... ...... ...... ...... ... 49 1.3.2 1.3.2

Cablin Cabling g to OMS1664 OMS1664 ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 50

1.3.3 1.3.3

Cabling Cabling to OMS1664 OMS1664 LTU Interf Interface ace Area... Area...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 50

1.3.4 1.3.4

Cablin Cabling g to STM-1 STM-1 High High Band Trib Area..... Area........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 60

1.3.5 1.3.5


1.3.6 1.3.6

LTU Interface Interface Area ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 64

1.3.7 1.3.7

Fan Tray Alarm Cabling Cabling... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 67

1.3.8 1.3.8

Removal Removal of of 1.0/2.3 1.0/2.3 Conne Connecto ctors..... rs........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 68

1.3.9 1.3.9

Power Power Cable Cable ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 69

Cabling Cabling And Terminating Terminating – Fibre....................... Fibre................................... ....................... ....................... ............ 70 1.4. 1.4.1 1

Gene Genera rall Cab Cabli ling ng Rule Rules s – Fibr Fibre e Opt Optic ic Cabl Cables es ..................................... 70

1.4. 1.4.2 2

Insp Inspec ecti tion on And And Cle Clean anin ing g Of Of Opt Optic ical al Fibr Fibres es ........................................ 70

1.4.3 .4.3

Mana Manag ging ing Fibr Fibres es With Within in The The Rac Rack k ..................................................... ..................................................... 71

1.4.4 1.4.4

Managin Managing g Optical Optical Fibres Fibres – OMS 1664 1664 Subra Subrack.... ck....... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 73

1.4.5 1.4.5



Topic 4 Page 2



1.2 1.2

1.3 1.3


1.1.13

Slide in Unit Insertion/Re Insertion/Removal moval ........... ................. ........... ........... ........... ........... ............ ............ ........... ....... .. 31

1.1.14

Slide in Unit Handling Handling ........... ................. ........... ........... ............ ........... ........... ........... ........... ........... ........... ........... ....... 31

1.1.15

Installation Installation Procedure........ Procedure.............. ........... ........... ........... ........... ........... ........... ............ ............ ............ ............ ........ .. 32

1.1.16

SIU Extraction/In Extraction/Insertio sertion......... n............... ........... ........... ............ ............ ............ ........... ........... ........... ........... .......... .... 33

DC Power Power And Eart Earthin hing g ..... ........ ...... ..... ..... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 35 1.2.1 1.2.1

Genera Generall ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 35

1.2.2 1.2.2

Instal Installl DC Cables... Cables...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 37

1.2.3 1.2.3

Prepar Preparatio ation n of ETSI Fuse Fuse Rail... Rail...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 41

1.2.4 1.2.4

Prepari Preparing ng Sub-Rac Sub-Rack k Power Power Leads Leads to DC Rail Rail ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 43

1.2.5 1.2.5

Earthi Earthing ng ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 44

1.2.6 1.2.6

Subrac Subrack k Fan Tray ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 45

1.2.7 1.2.7

Fan Tray Tray Power Power Supply...... Supply......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 47

1.2.8 1.2.8

Cable Cable Routin Routing..... g........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 48

1.2.9 1.2.9

Fan Fusing.. Fusing..... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 48

Cabl Cablin ing g and and Term Termin inati ating ng Copp Copper.... er....... ...... ...... ...... ...... ...... ...... ..... ..... ...... ...... ...... ...... ...... ... 49 1.3.2 1.3.2


1.3.3 1.3.3

Cabling Cabling to OMS1664 OMS1664 LTU Interf Interface ace Area... Area...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 50

1.3.4 1.3.4

Cablin Cabling g to STM-1 STM-1 High High Band Trib Area..... Area........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 60

1.3.5 1.3.5


1.3.6 1.3.6

LTU Interface Interface Area ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 64

1.3.7 1.3.7

Fan Tray Alarm Cabling Cabling... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 67

1.3.8 1.3.8

Removal Removal of of 1.0/2.3 1.0/2.3 Conne Connecto ctors..... rs........ ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 68

1.3.9 1.3.9

Power Power Cable Cable ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 69

Cabling Cabling And Terminating Terminating – Fibre....................... Fibre................................... ....................... ....................... ............ 70 1.4. 1.4.1 1

Gene Genera rall Cab Cabli ling ng Rule Rules s – Fibr Fibre e Opt Optic ic Cabl Cables es ..................................... 70

1.4. 1.4.2 2

Insp Inspec ecti tion on And And Cle Clean anin ing g Of Of Opt Optic ical al Fibr Fibres es ........................................ 70

1.4.3 .4.3

Mana Manag ging ing Fibr Fibres es With Within in The The Rac Rack k ..................................................... ..................................................... 71

1.4.4 1.4.4


1.4.5 1.4.5



Topic 4 Page 2


OMS1664 Product Family Release 1.3 1.4.6 1.4.6

1.5 1.5


STM-1 STM-1 Opti Optical cal and Electr Electrical ical Mix ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 75

Code Code Of Prac Practi tice ce - Han Handl dlin ing g Of Elec Electr tros osta tati tic c Dev Devic ices es .... ...... .... .... .... 77 1.5.1

Introduction ................................................................................ ......................................................................................... ......... 77

1.5.2 .5.2

Gene Genera rall Handl andliing Proc Proced edur ures es............................................................ ............................................................ 77

1.5. 1.5.3 3

Port Portabl able e Fiel Field d Serv Servic ice e Kit Kit (PFSK (PFSK)) And And Safe Safe Handl Handlin ing g Area Areas s (SHAs) (SHAs) 78

1.5.4

Wrist Strap Tester............................................................................... 78

1.5.5

Test Records ...................................................................................... 79

Chapter 2: Commissioning..........................................................81 2.1 2.1

2.2 2.2

Intro Introdu duct ctio ion n ...... ......... ...... ...... ..... ..... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... ..... ...... ...... ...... ...... ... 81 2.1.1

Introd roductio tion and Scop cope....................................................................... 81

2.1.2

EMC Protection .................................................................................. 81

2.1.3

Static tic Se Sensitiv tive Wa Warni rning ..................................................................... ..................................................................... 81

2.1. 2.1.4 4

Clea Cleani ning ng Pro Proce cedu dure res s for for Opti Optica call Conn Connec ecto tors rs..................................... ..................................... 81

2.1.5 2.1.5

Test Equipme Equipment nt ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 82

2.1.6 2.1.6

Informa Informatio tion n Requi Required red For Commiss Commission ioning.. ing..... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 84

OMS1 OMS166 664 4 Shel Shelff Conf Config igur urat atio ion n & Rules.. Rules..... ...... ..... ..... ...... ...... ...... ...... ...... ..... ..... ...... ... 86 2.2. 2.2.1 1

OMS1 OMS166 664 4 Stan Standa dard rd Shel Shelff Conf Config igur urat atio ion n ............................................ 86

1:1 MSP STM-1 Trib Protection......................................................................... 95 2.2.2 2.2.2

OMS1634 OMS1634 Shelf Shelf Configu Configurati ration... on...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 100

2.3 2.3

OMS1 OMS165 654 4 (Com (Compa pact ct)) Typi Typica call Shel Shelff Conf Config igur urat atio ions ns .... ...... .... .... .... .... .. 106 106

2.4 2.4

OMS1 OMS164 644 4 Typi Typica call Shel Shelff Conf Config igur urat atio ion.... n....... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... 110 110 2.4. 2.4.1 1

2.5 2.5

OMS16 OMS1644 44 STMSTM-16 16 ADM ADMUX UX:: Up to to 126 126 x 2Mbi 2Mbit/s t/s Ports. Ports... .... .... .... .... .... .... .... .... .. 110 110

Prel Prelimi imina nary ry Che Check cks s ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 113 113 2.5.1

Inspection .................................................................................. ......................................................................................... ....... 113

2.5.2

ALS Link Settings ............................................................................. 114

2.5. 2.5.3 3

Summa Summary ry of all all Card/ Card/Por Portt ALS ALS Lin Links ks (inc (inc.. Defa Defaul ultt Setti Setting ngs) s) .... ...... .... .... .... 114 114

2.5.4 2.5.4

Summary Summary of all NM/LCT NM/LCT ALS Contro Controll options.... options....... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 115

2.5.5 2.5.5

STM-1 STM-1 Traffic Traffic Card Card Link Link Sett Setting ings s ...... ......... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 122

2.5.6 2.5.6

Single Single Fibre Fibre Working Working Links Links on Optica Opticall Modu Modules.. les..... ...... ...... ...... ...... ...... ...... ...... ...... ..... .. 124


Topic 4 Page 3



2.6


2.5.7

STM-4 Traffic Card Link Settings ..................................................... 124

2.5.8

STM-16 Traffic Card Link Settings ................................................... 127

2.5.9

STM-16 Core Card Link Settings .................................................... 127

2.5.10

Flexible STM-1/4 Traffic Card (SFP Based) – 8 Port and 16 Port Version .......................................................................................................... 128

2.5.11

Flexible STM-1/4 Traffic LTU ........................................................... 129

2.5.12

Management and Sync LTU Link Settings ....................................... 131

2.5.13

Power LTU Link Settings.................................................................. 132

2.5.14

Alarms and Aux LTU ........................................................................ 132

2.5.15

Ethernet 100M LTU SFP Link Settings ............................................ 134

2.5.16

Card Installation................................................................................ 135

2.5.17

Power Supply & Rack Alarm Checks ............................................... 135

Local Craft Terminal Installation Information ....................... 137


Topic 4 Page 4



Installation and Commissioning List of Figures

List of Figures Figure 1-1: End View Of Suite..................................................................................................... 12 Figure 1-2: ETSI Rack with Cable Duct Cut Out Template (900x300)........................................ 13 Figure 1-3: Fitting Trim (Typical Only) ......................................................................................... 13 Figure 1-4: RMF Support Where Floor Void Is Less Than 350mm............................................. 15 Figure 1-5: RMF Support Where Floor Void Is Greater Than 350mm ........................................ 18 Figure 1-6: Additional and Modified Brackets (2.6m Ironwork). .................................................. 20 Figure 1-7: Aligning EF80............................................................................................................ 21 Figure 1-8: Mounting Plate .......................................................................................................... 22 Figure 1-9: Cable Bracket............................................................................................................ 22 Figure 1-10: Bracket Finger Orientation ...................................................................................... 22 Figure 1-11: Side Mounting Plate ................................................................................................ 23 Figure 1-12: Fibre Management Spool and Bracket ................................................................... 24 Figure 1-13: Cable Brake-out Bracket ......................................................................................... 24 Figure 1-14: Cable Management Bar (Standard Subrack).......................................................... 25 Figure 1-15: Cable Management Bar (Compact subrack) .......................................................... 25 Figure 1-16: Shelf Mounting Bracket ........................................................................................... 27 Figure 1-17: Mounting Bracketsa ................................................................................................ 27 Figure 1-18: OMS1654 Subrack.................................................................................................. 28 Figure 1-19: Fan Tray Installation ............................................................................................... 30 Figure 1-20: SIU .......................................................................................................................... 32 Figure 1-21: Sketch of the OMS1664 Infrastructure ................................................................... 36 Figure 1-22: Typical termination of the Rack Top Fuse Rail ....................................................... 40 Figure 1-23: ETSI DC Power Rail (Typical Only) ........................................................................ 41 Figure 1-24: 0 Volt Earth Rail ...................................................................................................... 41 Figure 1-25: Factory Assembled Power Looms .......................................................................... 43 Figure 1-26: Factory Assembled Power Looms .......................................................................... 43 Figure 1-27: Power LTUs DC cables........................................................................................... 44 Figure 1-28: Rack Protective Earth Terminal .............................................................................. 44


Topic 4 Page 5




Figure 1-29: Subrack Safety Protective Earth Terminal.............................................................. 45 Figure 1-30: Fan Tray.................................................................................................................. 46 Figure 1-31: Fan Tray Earthing ................................................................................................... 46 Figure 1-32: Filter Cleaning ......................................................................................................... 47 Figure 1-33: Cable Routing ......................................................................................................... 48 Figure 1-34: LTU Area. 32 Ports Per Card.................................................................................. 51 Figure 1-35: Typical Cabling Layout in a 900 x 3000mm Rack .................................................. 52 Figure 1-36: Cables formed to front of LTU 1 to 6....................................................................... 53 Figure 1-37: Running Stitch......................................................................................................... 54 Figure 1-38: Cable Forming Diagrams ........................................................................................ 54 Figure 1-39: Securing Form to CMB with Cable Tie ................................................................... 56 Figure 1-40: Tribs 1-4 Cabled with ST 212 Coaxial Cable.......................................................... 56 Figure 1-41: Tribs 1-4 Cabled with ST 212 Coaxial Cable.......................................................... 57 Figure 1-42: Tribs 5-8 Cabled with ST 212 Coaxial Cable.......................................................... 57 Figure 1-43: Plugging and Dressing of Cables (1) ...................................................................... 59 Figure 1-44: Plugging and Dressing of Cables (2) ...................................................................... 59 Figure 1-45: Plugging and Dressing of Cables (3) ...................................................................... 60 Figure 1-46: STM 1E High Band Trib Cards ............................................................................... 61 Figure 1-47: STM-1 Electrical Lower Shelf Cable Management ................................................. 62 Figure 1-48: STM-1 Electrical Upper Shelf Cable Management ................................................. 62 Figure 1-49: Cabling of an STM-1 Electrical and Optical Mix ..................................................... 63 Figure 1-50: LTU Area Interface.................................................................................................. 64 Figure 1-51: 75 ohm interface/ 120 ohm interface ...................................................................... 65 Figure 1-52: Permitted Cable Forms ........................................................................................... 66 Figure 1-53: Cable Management Bar .......................................................................................... 67 Figure 1-54: Fan Tray Alarm Cabling .......................................................................................... 67 Figure 1-55: Alarm Cable Assembly............................................................................................ 68 Figure 1-56: Lower and Upper LTU Areas .................................................................................. 69 Figure 1-57: Kopex Flexible Conduit ........................................................................................... 71 Figure 1-58: Typical Installation................................................................................................... 71 Figure 1-59: Fibre Spool.............................................................................................................. 73 Marconi Copyright- Refer to title page

Topic 4 Page 6




Figure 1-60: Mid Shelf Fiber Guides ........................................................................................... 74 Figure 1-61: View Showing Card Cage with STM-1 Optical Tribs .............................................. 74 Figure 1-62: Wrist Strap Tester ................................................................................................... 78 Figure 2-1: EPL-100 Fast Ethernet LTU Interface:- .................................................................... 84 Figure 2-2: Two pair Cross-over UTP Fast Ethernet Test Cable ................................................ 84 Figure 2-3: OMS1664 Standard Shelf ......................................................................................... 86 Figure 2-4: STM-16 Cross Connect: Up to 8 x STM-16 Ports..................................................... 93 Figure 2-5: STM-16 Cross Connect: Up to 128 x STM-1 Ports................................................... 94 Figure 2-6: STM-16 Cross Connect: Up to 504 x 2Mbit/s Ports.................................................. 95 Figure 2-7: STM-16 Add-Drop Multiplexer: Up to 128 x STM-1 Ports......................................... 97 Figure 2-8: STM-16 Add-Drop Multiplexer: Up to 504 x 2Mbit/s Ports........................................ 98 Figure 2-9: OMS1634 (Compact) 2Mb/s Admux Shelf.............................................................. 106 Figure 2-10: OMS1654 (Compact) STM-1 Admux shelf ........................................................... 107 Figure 2-11: Subset of ALS Configurability Currently Supported By OMS1664 ....................... 118 Figure 2-12: ALS Shelf Commissioning Process Flowchart...................................................... 120 Figure 2-13: ALS Card Insertion Process Flowchart ................................................................. 121 Figure 2-14: ALS link settings for an STM-1 Trib/Traffic card (Sketch) .................................... 122 Figure 2-15: ALS Link Settings for an STM-1 Trib/Traffic card (Photo) .................................... 123 Figure 2-16: Blow-up of Link Area for STM-1 Trib/Traffic Card................................................. 123 Figure 2-17: ALS link settings for an STM-4 Trib/Traffic card (Photograph)............................. 126 Figure 2-18: Blow-up of Link Area for STM-4 Trib/Traffic Card................................................. 126 Figure 2-19:STM-16 Core Card Link Settings ........................................................................... 127 Figure 2-20: Link Settings for Flexible STM-1/4 Traffic Card .................................................... 129 Figure 2-21: Link Settings for Flexible STM-1/4 LTU ................................................................ 130 Figure 2-22: Management and Sync LTU ................................................................................. 131 Figure 2-23: Link settings for the Alarms & Aux LTU ................................................................ 133 Figure 2-24:Schematic and Picture of Ethernet 100M LTU Link Settings................................. 134 Figure 2-25: Power Connectors ................................................................................................ 136


Topic 4 Page 7




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Topic 4 Page 8



Installation and Commissioning List of Tables

List of Tables Table 1-1: Item Codes for figures Figure 1-4 and Figure 1-5...................................................... 15 Table 1-2: Marconi Part Numbers ............................................................................................... 36 Table 1-3: OMS1664 Full Shelf Typical Power Consumption ..................................................... 37 Table 1-4: DC Rail Part Codes .................................................................................................... 42 Table 2-1: LCT to OMS1664 Interface Cable.............................................................................. 83 Table 2-2: Standard Shelf Line/Trib Units Slot Allocation ........................................................... 87 Table 2-3: Standard Shelf LTU Units Slot Allocation .................................................................. 92 Table 2-4: LTU Port Numbers ..................................................................................................... 96 Table 2-5: STM-1 Ports with Different Line Functionality............................................................ 97 Table 2-6: LTU Port Numbers ..................................................................................................... 98 Table 2-7: OMS1654 Shelf Slot Allocation................................................................................ 108 Table 2-8: ALS configurability per card ..................................................................................... 119 Table 2-9: Switch settings for Management & Sync LTU.......................................................... 132


Topic 4 Page 9



Installation and Commissioning List of Tables

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Topic 4 Page 10



Installation and Commissioning Installation

Chapter 1: Installation 1.1

OMS1664 Installation Sequence Note: Prior to the start of ANY activity (Installation or Commissioning) on an InService exchange, or on ANY equipment within a live/ in-service environment, the Engineer must contact the relevant overall installation authority. Note: It must be remembered that after installing and commissioning on an in service exchange all doors, end panels, ducting covers and screws should be refitted. This will ensure that the integrity of the faraday cage (EMC) is not compromised. The ETSI rack is a 900mm x 300mm rack and will accommodate a fully cabled subrack, Fibre splice shelf and a DC Distribution Panel.

1.1.1

Install Rack - Raised Mod ular Floo r WARNING! On customer sites where halon fire suppression systems are in operation, ensure that these systems are set to ‘manual’ whilst the building or room is in operation. Remember to reset the system to ‘automatic’ upon vacating the room or building. Care should be exercised to ensure that any discharge heads, which may be situated in the floor void, are not accidentally damaged. Note: Prior to positioning of the racks, all under-floor ironwork and cable trays should be installed. There are two types of RMF supports documented in this section and should be installed to suit site conditions: 

Where floor void is less than 350mm (refer to 1.1.1.2).



Where floor void is greater than 350mm (refer to 1.1.2.1).

Note: Front access ETSI racks positioned on a raised modular floor, require fixing through the tiles to the sub-floor. If a single 300mm deep rack is to be installed without an adjacent rack to the rear, both front & rear holes must be used with fixings to the sub-floor. Back to back racks require only the front holes of each rack to secure. Refer to Figure 1-1: End View Of Suite


Topic 4 Page 11




Figure 1-1: End View Of Suite

SINGLE ROW F

F

R

F

BACK TO BACK 600x600 TILE

1.1.1.1

Preparation of Apparatus Room Modify Floor Tiles Access holes will require cutting in each tile position for cabling, conduit entry and rack fixing points. Refer to Figure 1-2 for the drilling and cut out template when siting an ETSI rack on a RMF. Using the measurements on the template, mark the drilling positions and cable access hole. Note: The measurements cover more than one 600 x 600 mm square tile. Mark on the top of the tile the orientation before removing the tiles and take to the work area.

WARNING! Ensure the area is cornered off prior to the removal of the floor tile. Note: Modification to floor tiles should only be undertaken by operators fully trained in woodworking techniques or under authorised supervision. Note: It is a mandatory requirement to wear ear defenders, eye shields and gloves during the drilling and cutting operations. Note: Any drilling operation on site should be carried out in such a manner as t o keep dust and debris from contaminating adjacent equipment. Secure the tile to the workmate using ‘G’ clamps protecting the vinyl / carpet surface from possible damage. Spot drill the four previously marked holes using a 6 mm bit drilling from the top surface of the tile only. Enlarge each hole to the required size using the appropriate drill bits. Spot drill each corner of the marked area for the cable access hole using a 6 mm bit. Enlarge the holes sufficiently to accept the jigsaw blade.


Topic 4 Page 12




Starting from the pilot holes, cut cable slot along marked lines, exercising care to keep the jigsaw blade perpendicular to the tile during the cutting operation. It may be advisable to do the top cut from the top surface and trim from the bottom surface of the tile later to obtain smooth and straight edges. Using a file, smooth all sharp edges from the drill holes and slots. Inspect the tiles to ensure they have straight and smooth edges.

Figure 1-2: ETSI Rack with Cable Duct Cut Out Template (900x300)

600mm Extra pedestals refer to note.

180mm

60mm 70mm

120mm

Note: Where racks are positioned back to back on a cut tile, the tile will require extra support. This is to be achieved with the use of additional pedestals positioned strategically along the tile centre line. Measure the circumference of the slot, and allowing for an overlap at the joint, cut PVC (1MAA 12174 AES) and trim to the required length. The trim is to be fitted from the underside of the slot. Fix PVC to the tile using 25mm wire nails. If necessary use hot airgun at the corners to obtain a good fit.

Figure 1-3: Fitting Trim (Typical Only)

P V C T r im 1MAA 12174AES

Vinyl or Carpet Covering

F l o o r T i le

Equi-spaced N a i l P o s i t io n s H.D. Chipboard Cable Access

Metal

A p p ly H e a t


Topic 4 Page 13

C u t t o O b t a in a Butt Fit




Take the floor tile to the equipment area and replace in position ensuring correct orientation. When drilling and cutting are completed the area should be swept clean of any accumulated dust or debris. Note: The installers should be supplied with a site installation folder from the appropriate overall installation authority giving information concerning earthing and cable size for an individual site.

1.1.1.2

Install RMF Support Where FV is Less than 350mm Select the area work is to commence. It is advisable not to have too many floor tiles raised at any one time. Mark each tile on the underside with an indelible marker (position and orientation of tile) as they are lifted to ensure they are relocated in the same position.

WARNING! Prior to lifting any floor tiles ensure the area to be worked in is cordoned off using cones and barrier tape. Warning signs must be placed at all entrance points to the room being worked in. Using a correctly orientated floor spotting aid, mark the sub floor for correct positioning of the brackets, under the 600 x 600 tile. Mark the positions of the holes to be drilled on the floor and drill out the two holes to a maximum depth of 32mm using an 8mm masonry bit for concrete floors. Insert rawlplugs 1MAB 00129 AAJ into each drilled hole. Note:

Installer to use drill stops to ensure that the maximum depth of 32mm is not exceeded.

WARNING! Before drilling into walls or floors, a check must be carried out using a cable/conduit detector to ensure that there are no buried services. Secure the four ‘U’ Brackets to the floor using screws 1MAB 00132 ACT and associated fixings, refer to Figure 1-4. Clear away any dust and debris from the drilling area.


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1.1.2


Fitting Double Channel, Drop Rods and ‘U’ Brackets Figure 1-4: RMF Support Where Floor Void Is Less Than 350mm ETSI RACK FRONT

18 1 11

13

4

5

7

3

16 17

14 15

8

2

9 10 19

Using a length of double channel (cut on site to suit), refer to Figure 1-4 for a typical under-floor support KOP.

Table 1-1: Item Codes for figures Figure 1-4 and Figure 1-5 ITEM

CODE

DESCRIPTION

NO

QTY

QTY.

Fig 4.4

Fig.4.5

1

1MAB00534AEJ

M6x50mm HEX. Screw

2

2

2

1MAB00047AAD

M6 Washer

2

2

3

1MAB00277AAM

M6 Special Nut

2

2

4

1MAB00010AAS

M12 HEX.Nut ‘S’

6

-

5

1MAB00273AAD

M12 Special Nut

2

6

6

1MAB00279AAR

M12x22mm HEX. Screw

-

6

7

1MAB00274AAF

SQ, Plate Washer

2

-

8

1MAB00132ACT

M8 Coach Screw

4

2

9

1MAB00268AAY

M8 Flat Washer

4

2

10

1MAA01896ABF

Nylon Plug

4

2

11

1MAA11841AAV

M6 x 6 Lug

1

1

12

1MAB00006AAQ

M6 Nut

1

1

13

1MAB00534ABG

M6 x 20mm HEX. Screw

4

1

14

1MAB00059AAX

M6 Shakeproof Washer

1

1

15

1WAA10050ADL

4mm G/Y Earth Cable

1

1

16

1MAB00338AJY

M12 Threaded Rod 229mm

2

-

17

1MAC10133AAS

16 O/D Plastic Sleeving

1

-

18

1MAA00588ABE

41x 41 Channel 600Long

1

1

19

1MAA00589AAP

Bracket ‘U’

2

-

20

1MAA00587AAK

Bracket 90°

-

4


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The length of double channel should be positioned directly below the rack fixing holes, previously drilled in the floor tiles. Do not fully tighten saddle brackets screws until the racks and drop rods are fitted. Repeat the above for each additional channel length identified on the site drawing. Fit end caps to all exposed ends of the channel. Replace the suite of tiles, ready prepared with cable and fixing holes. Ensure the correct orientation of the tiles. Locate the rear of the racks along the suite line

WARNING! The stability of the rack must be maintained at all times. Once the racks are in position, remove the floor tile from the front of the rack to gain access for securing. Note:

If two racks are to be fitted back to back, only two drop rods are required under each rack. If a single rack or suite of single racks is to be sited, the racks should be secured using the four rack fixing holes.

Cut the drop rods to suit and fit the nuts/washers as shown in Figure 1-4. Note: 16mm conduit must be fitted over the rods also cut to suit, to protect cables. Fit the nut near the top of the rod and feed up through the fixing holes in the base of the tile and rack, refer to. Figure 1-4. Fit a further nut below the conduit, these nuts and washers are for bracing between the underside of the tile and the channel. Site the bottom of the rod into the saddle bracket or straight onto the channel, see . Figure 1-4. Fit special nuts within the channel to capture top of drop rods. Check the drop rods are vertical before tightening any nuts. Fit a nut and washer at the top of rod within the base of the rack and tighten. Secure the nuts and washers between the tile and channel and ensure the screws are now fully tightened on the saddle bracket. Continue fitting drop rods until all the racks are secured.

1.1.2.1

Install RMF Support Where FV is Greater than 350mm Prepare apparatus room and modify floor tiles as previously outlined above.

1.1.2.2

Position and Secure Right Angled Brackets to Sub Floor Using a correctly orientated floor spotting aid, mark the sub floor for correct positioning of the brackets, under the 600 x 600 tile. Mark the positions of the holes to be drilled on the floor and drill out the two holes to a maximum depth of 32mm using an 8mm masonry bit for concrete floors.


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Insert rawlplugs 1MAB 00129 AAJ into each drilled hole. Note: Installer to use drill stops to ensure that the maximum depth of 32mm is not exceeded.

WARNING! Before drilling into walls or floors, a check should be carried out using a cable/conduit detector to ensure that there are no buried services. Secure the four right-angled brackets to the floor using screws 1MAB 00132 ACT and associated fixings, refer to Figure 1-4. Clear away any dust and debris from the drilling area. Repeat the above for each additional channel length identified on the site drawing. Fit end caps to all exposed ends of the channel. Fit Horizontal and Vertical Double Channel and Right Angled Brackets Using length of double channel for the horizontal (cut on site to suit) this should be positioned directly below the rack fixing holes, previously drilled in the floor tiles. For the vertical double channel height measure the floor void and minus the depth of the horizontal double channel (cut to suit) x 2. Present the vertical channels to the right angled brackets previously secured to the sub floor, secure with M12 x 22 screw (1MAB 00279 AAR) and M12 nut special (1MAB 00273 AAD), repeat for remaining vertical channels, see. Figure 1-5. Fit a second right angled bracket to the top of the vertical, secure with fixings as above. Fit horizontal channel and secure with above fixings. Note: Ensure two M10 nut specials (1MAB 00273 AAD) are fitted to the upper of the horizontal channel and positioned to correspond with the rack fixing holes previously drilled in the floor tiles . Replace the suite of tiles, ready prepared with cable and fixing holes.Ensure the correct orientation of the tiles. Locate the rear of the racks along the suite line.

WARNING! The stability of the rack must be maintained at all times.


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Figure 1-5: RMF Support Where Floor Void Is Greater Than 350mm

18 1

11 13 14 15

2

3

18

6 20 8

9 10

Note: Refer to Table 1-1 for Kop codes.

1.1.2.3

Moving Of Equipment On Raised Modular Floor Areas WARNING! Extreme care must be taken when moving racks across reduced strength tiles, i.e. Tiles with cutouts, vents etc. Under no circumstances should the cutout area be subject to load bearing, particularly when using narrow wheeled skoots. Protection of the floor should be made by laying plyboard throughout the route the rack has to be taken across the exchange room to its fixing position.

1.1.2.4

Position & Securing The Rack To Under-floor Support Align the front of the rack base to the tile edge or fixing holes and lower the four rack feet to make contact with the floor. Using a plumb line, align the rack vertically. Use the screw thread on each foot to make adjustments as necessary. A tolerance of +/-3mm is allowed on the vertical alignment of each rack . Once the rack alignment is set, M12 x 50 mm bolts and washers can be used to secure the racks through the tile to the double channel fixed below.

1.1.3

Installation Under Overhead Iron wo rk Refer to site specific information provided by the overall installation authority, for the rack location. With reference to the floor plan, and floor markings , identify the positions in which the racks are to be installed.


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Check that;

1

The floor is clearly marked, if not remark as necessary.

2

The location of Equipment racks, DDF’s, etc are known.

Note: Site supervisors should be aware that the 900x300 ETSI racks weighs approx. 85Kg unequipped. Mechanical handling aids should be used wherever possible to move racks within an exchange. Anti static precautions must be observed when erecting racks. The rack should be transported as near as possible to its final location still in its packing. Remove the rack from its packing. Care should be exercised to avoid the spring action of the polyprop retaining bands. Gloves and eye protection must be worn. Consultation with the Customers Representative to agree on a suitable area for unpacking of racks materials should be made prior to commencing this activity. Lower the rack to the floor. Ensure the stability of the rack is maintained. When all packing has been removed, carry out a visual check to ensure that no obvious damage has occurred to the metalwork or internal cabling during transportation. Refer to the floor plan for the position the rack is to be installed. Align the front of the rack base to the tile edge or fixing holes and lower to the floor. Note: The last stages of moving and erecting a rack will normally be done manually. Site Supervisors are to ensure sufficient staff is available for this activity. Align the rear of the rack to the suite datum line. Using a plumb line, align the rack vertically. Use the screw feet at the base of the rack as necessary. A tolerance of +/- 3mm is allowed on the vertical alignm ent of the equipment. Note: All four, rack feet must be in full contact with the floor.

1.1.3.1

Fitting Of “C” And Figure Of “8” Brackets 2.6m Ironwork An ETSI rack with cable ducts may interfere with an existing suite’s figure of “ 8” brackets, when fitting back to back. To accommodate this, the figure of “8” brackets will need modifying. Unbolt figure of “8” bracket (DT 40214/1), remove from the ironwork, and hacksaw a clearance section from the bottom. Remove all sharp edges with a file. When a new SMA16/64 rack with associated ducts, backs on to an existing standard suite (no ducts), the rack top fixing positions no longer align; additional figure of “8” and “C” brackets will have to be fitted to ensure rack stability. Fit additional “C” and figure of “8” brackets where necessary, (dependent on suite layout and ironwork height).


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For 2.6m ironwork fit a bracket DT 40214/1 to the rack fixing point with a “C” bracket fixed above that.

Figure 1-6: Additional and Modified Brackets (2.6m Ironwork).

“C” Bracket 1MAA62959AAD

Bracket DT 40500/1

Screw MCH 12025

Bracket DT 40214/1 Screws 1MAB20279AAR

Modified Bracket

Existing Suite Cable Duct

1.1.3.2

Fitting Of ‘C’ And Figure ‘8’ Brackets Under 2.2m OHI. When installing the racks for the SMA16/64 back to back with existing 600X300 racks under 2.2meter OHI, the Figure of “8” support brackets (DT 40500) already in situ will not align with the new rack fixing holes due to presence of cable ducts in the suite. If the Engineer is in doubt how to resolve these problems they should contact Marconi Method and Standards Dept in Liverpool.

1.1.4

Fit EF80 Refer to Contract Engineering site drawings to identify the required position(s) for the EF80 fuse distribution panel. Position the foot of the EF80 to the datum line. Using a plumb line ensures the vertical alignment of the EF80, and mark the two fixing holes in the base. Note: A fixing hole will need drilling in the side of the cable duct if the EF80 is to be fitted adjacent, mark the top fixing hoe in the EF80, see Figure 1-7. Remove the EF80 and place in a safe position.


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Drill two holes (opposite corners) using an 8mm drill bit to a depth not exceeding 30mm and insert rawplugs 1MAB 20477 AAP into the holes. Ensure plug is flush with the floor level. Clear away dust and debris from the drilling area. Note:

Installer to use drill stops to ensure that the maximum depth of 32mm is not exceeded.

Align hole at the top of the EF80 to the side pane l of the cable duct, and fasten together using a M8 screw, washer and nut. Secure finger tight only. Align the EF80 to the floor markings, insert scre ws NSR-1248/f625 (2 off) into the previously drilled holes. Do not fully tighten at this stage. Using a plumb line, align the EF80 vertically using packing as necessary and fully tighten all floor and rack fixings. Repeat the above for each EF80.

Figure 1-7: Aligning EF80

Cable Ducts (IRS)

Drilled Hole EF80

Fixing Hole

1.1.5

Cable and Fibre Management Devices

1.1.6

Cable Bracket The ETSI 900 X 300 rack has a flexible solution to aid cable and fibre management within the duct areas. Brackets provide the facility to support cable bundles and partition the cables away from fibres. The cable bracket is supported on a mounting plate a shown below.


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Figure 1-8: Mounting Plate

The cable bracket is secured to mounting uprights provided in the cable duct. This offers a number of fixing positions to attach a partition bracket.

Figure 1-9: Cable Bracket

Rear Mounting Uprights

Partition Bracket

Partition brackets are to be mounted onto the rear plate using bolts provided. Bracket fingers are to be orientated towards the subrack as shown below.

Figure 1-10: Bracket Finger Orientation


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Refer to the cabinet face rack layout diagram to establish bracket locations within the cable ducts. Note: The partition brackets for the OMS 1664 installation are to manage the STM-1 cables within the duct. Note: The LTU cables will be managed on the breakout cable brackets.

1.1.7

Fibre Spools Fibre spools are fixed to a support plate which is mounted to the duct side uprights. The front of the plate is provided with tapped holes for fixing the spool bracket to and with the rear of the plate enabling COF type fibre cable to be supported using cable ties. The spool and bracket have a number of fixing positions on the plate for small adjustments in the height.

Figure 1-11: Side Mounting Plate

Front

Rear

Note: At least one spool should be mounted adjacent to the fibre m anagement device provided on the subrack. This enables fibres to be correctly routed away from the subrack. Note: Remaining spools can be used to manage excess length in patch cords. Side plates are to be secured to the rack, using the fixings provided.


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In turn secure the right-angle brackets to the side plates and attach the spool with the bolts supplied.

Figure 1-12: Fibre Management Spool and Bracket

1.1.8

Cable Brake-out Bracket Cable Brake-out brackets may be fitted in the rack cable ducts to support coax cables entering and leaving the rack.

Figure 1-13: Cable Brake-out Bracket

The bracket is secured to the uprights in the cable ducts using the bolts provided.

1.1.9

Cable Management Bars Cable management bars 1MAA 64703 AAS are required to be fitted above each subrack to provide support for copper cables connecting to the unit. The number of cable management bars fitted will depend upon the number of cables likely to be employed.

1.1.9.1

Standard Subrack Two management bars will be required in Standard subrack installations (e.g. OMS 1664) as shown below.


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Figure 1-14: Cable Management Bar (Standard Subrack)

Cable Management Bars

Cables are to be dressed onto management bars in to ensure that air flow through the unit is not restricted and access to SIU ‘s is not impaired. The procedure for dressing cables is accordance with details outlined in Section 7 of this document. Cable management bars are to be fitted using M6 screws, black plastic cup washers and cage nuts. Insert cage nuts in desired positions in the rack front mounting rails. Note: The upper cable management bar is to be fitted protruding IN towards the rear of the rack. The lower bar is to be fitted protruding OUT towards the front of the rack.

1.1.9.2

Compact Subrack A single management bar will be required in compact subrack installations (e.g. OMS 1654) as shown below.

Figure 1-15: Cable Management Bar (Compact subrack) Cable Management Bar


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Cables are to be dressed onto the management bar to ensure that air flow through the unit is not restricted and access to subrack SIU ‘s is not impaired. The procedure for dressing cables is accordance with details outlined in Section 7 of this document. The Cable management bar is to be fitted using M6 screws, black plastic cup washers and cage nuts. Insert cage nuts in desired positions in the rack front mounting rails. Note: The cable management bar is to be fitted protruding IN towards the rear of the rack.

1.1.10

Installing OMS 1664 Subrack This section outlines the activities required to install the OMS 1664 subrack into an equipment rack.

CAUTION! The subrack weighs approximately 10 kg when empty. Refer to Section 2 – ‘Lifting and Handling’ of this document for details of handling procedure. WARNING: The standard subrack weighs approximately 10 kg when empty. It is necessary to obtain assistance from a colleague during installation activities.

1.1.10.1

Rack Preparation The following activities ensure that the rack is prepared to accept the subrack. Note: Refer to the information provided by Contract Engineering establish the location of the subrack within the cabinet. The subrack is secured in to the rack via the front mounting brackets using M6 screws and cage nuts. 

Fit 8 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mounting rails corresponding with the subrack fixing holes.

Shelf support brackets 1MBB 61103 AAM are provided to ease installation of the subrack. The shelf support brackets provide a pivot point for the subrack during installation. 

Fit 2 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mounting rails for shelf support brackets. These are fitted 1 SU below the subrack bottom fixing screw.



Secure the shelf mounting brackets to the rack using M6 screws as shown.


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Figure 1-16: Shelf Mounting Bracket

Shelf Support Bkt.

Fixing Screw 1MAB 20025 AAH

1MBB 61103 AAM

1.1.10.2

Installation Procedure CAUTION! Ensure cable assemblies and internal brackets will not impede subrack insertion into the rack. P r i o r t o i n s t a l l i n g t h e s u b r a c k c o n n e c t o r s a r e t o b e t e rm i n a t e d t o t h e u n i t D C p o w e r c a b l e s R e f er t o S e c t i o n 5 o f t h i s m a n u a l f o r m e t h o d o f f i t t i n g c o n n e c t o r s .

The subrack is to be moved to a position adjacent to the rack using mechanical transportation devices suited to the working environment. Note: It is preferable that the equipment remains in its packaging during transportation. 

Remove packaging and inspect the subrack for any signs of damage.



Using the procedure outlined in section 2 of this document present the subrack upto the support brackets attached to the rack front rails.



Pivot the subrack into place until the unit is vertical and the mounting brackets are in contact with the rack front rails.

Figure 1-17: Mounting Bracketsa

Subrack Mtg. Bracket


Topic 4 Page 27




Stabilise the subrack and secure to the rack framework using 8 off M6 x 16 mm long screws (1MAB 20025 AAH) and black plastic cup washers (1MAB 20027 AAM) in the positions fitted with cage nuts. The stability of the subrack must be maintained at all times, until all the fixing screws are fitted. 

Remove the shelf support mounting brackets from the rack once the subrack is secure for reuse.

Note: Ensure that the black plastic covers, are fitted to the bracket mounting studs, once the subrack installation is completed. 

Remove all packing materials from the area and dispose of in accordance with procedure agreed with the customer.

Note: A supplementary earthing strap must be connected to the stud pro vided on the subrack chassis prior to application of DC power. Refer to Section 5 of this document for subrack earthing requirements.

1.1.11

Installing OMS 1654 Subrack This section outlines the activities required to install the OMS 1654 subrack into an equipment rack.

Figure 1-18: OMS1654 Subrack

CAUTION! The compact subrack weighs approximately 5 kg when empty. Whilst a single operator may be capable of lifting the unit into place it is advisable to obtain assistance from a colleague during installation activities. Note: Prior to installing the subrack connectors are to be terminated to the unit DC power cables. Marconi Copyright- Refer to title page

Topic 4 Page 28



1.1.11.1


Rack Preparation The following activities ensure that the rack is prepared to accept the subrack. The subrack is secured in to the rack via the front mounting brackets using M6 screws and cage nuts. 

Fit 6 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mounting rails corresponding with the subrack fixing holes.

Shelf support brackets 1MBB 61103 AAM are provided to ease installation of the subrack. The shelf support brackets provide a pivot point for the subrack during installation.

1.1.11.2



Fit 2 off M6 it cage nuts 1MAB 20026AAK into positions in cabinet mounting rails for shelf support brackets. These are fitted 1 SU below the subrack bottom fixing screw.



Secure the shelf mounting brackets to the rack using M6 screws as shown previously.

Installation Procedure Ensure cable assemblies and internal brackets will not impede subrack insertion into the rack. The subrack is to be moved to a position adjacent to the rack using mechanical transportation devices suited to the working environment. Note: It is preferable that the equipment remains in its packaging during transportation. 

Remove packaging and inspect the subrack for any signs of damage.



Carefully lift the subrack and present it upto the required location in the rack. Rest the chassis on the attached support brackets.



Pivot the subrack into place until the unit is vertical and the mounting brackets are in contact with the rack front rails.



Whilst stabilising the unit request the assistance of a colleague to secure it to the rack framework using 6 off M6 x 16 mm long screws (1MAB 20025 AAH) and black plastic cup washers (1MAB 20027 AAM).

CAUTION! The stability of the subrack must be maintained at all times, until all the fixing screws are fitted. Remove the shelf support mounting brackets from the rack once the subrack is secure for reuse. Note: Ensure that the black plastic covers, are fitted to the bracket mounting studs, once the subrack installation is completed.


Topic 4 Page 29


OMS1664 Product Family Release 1.3 


Remove all packing materials from the area and dispose of in accordance with procedure agreed with the customer.

Note: A supplementary earthing strap must be connected to the stud pro vided on the subrack chassis prior to application of DC power.

1.1.12

Fan Tray Installation Both the standard and compact subracks are provided with a removable fan tray. The tray is located in the lower section of the chassis. Slide the fan tray into place and secure to the chassis using the 4 off captive screws provided.

Figure 1-19: Fan Tray Installation

Alarm Port Earth Stud

Power Connector

Fan Filter

The fan tray requires a protected independent DC power supply. A three pin D-type power connector is located on the front of the unit. A D-type alarm cable input connector is also provided on the front of the unit. Note: Refer to the power and earthing and alarm cable requirements in this document. 

Attach a supplementary earth strap to the stud on the front face of the fan unit prior to connecting a DC power supply.


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Securing Screws

The fan tray is provided with a replaceable fan filter element. If this is not already fitted slide this into place in the slot at the bottom of the unit.

1.1.13

Slide in Unit Insertion/Removal The following outlines the activities associated with SIU installation into the subrack.

1.1.14

Slide in Unit Handling Slide in units contain electrostatic sensitive devices. It is imperative that ESP precautions are strictly adhered to during installation activities. SIU packaging is clearly identified with static hazard warning labels. Cards should remain in their protective conductive packages/bags pending rack allocation. Note: Prior to installing SIU’s into the subrack it is a mandatory requirement to carry out the following inspection: 

Ensure that damage has not occurred to the electrical and optical connectors on the subrack backplane.



Check that the card guides in the subrack are clear and not damaged.



Check SIU’s for any signs of damage, especially the front edge connections.



Refer to the site specific documentation to establish the correct location of SIU’s within the subrack.

Note: Units are provided typically in see-through anti-static bags. Wherever possible checking and inspection of a unit should occur without removing it from the bag. Note: If a unit is to be removed from its protective bag, for inspection or insertion into the rack, the following precautions must be adhered to: Fix an ESP grounding wrist strap and cord to the ESD stud on the rack. Handle unit by its face plate or card ejectors.


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Note: The ESP wrist strap must have a 2 M Ohm resistor fitted at either end. All straps and cords MUST be tested prior to use. Wrist straps should be worn in direct contact with bare skin and not over clothing. Note: If a fault or damage is found on a SIU, then it is the engineers responsibility to arrange for a replacement to be dispatched and the faulty unit to be returned to the factory.

1.1.15

Installation Procedure Subrack SIU installation process is as follows: 

Refer to the site documentation to obtain the correct card location within the subrack.



Hold the SIU by the card ejectors and align with the guides in the subrack.



Slide the unit into the subrack ensuring the two ejectors are in the horizontal (open) position.

Figure 1-20: SIU



Push the unit home by pressing the two card ejectors inwards towards the centre of the unit.



Ensure that the unit is correctly located by operating the card ejectors.


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Repeat the above procedure for all slide in units which are to be installed in the subrack. Note: Blanking covers must be fitted to empty card slots to maintain ideal EMC and ESP conditions.

CAUTION! Do not attempt to temporarily park SIU ‘s in the subrack as incorrect placement or forced insertion of the unit could cause damage to the backplane.

1.1.16

SIU Extraction/Insertion Removal and re-insertion of units during upgrade or maintenance activities can be summarised as follows: Note: Consult with a customer representative to ensure that the SIU is not in service prior to removal. 

Disconnect coax or fibre connections to the card taking care not to disturb adjacent terminations.

Note: Use appropriate connector removal tools where necessary. Great care must be taken to ensure that cables are not pulled during disconnection. 

Carefully operate card ejector devices to disconnect the unit from the subrack backplane.



Hold the unit by the ejectors and withdraw it from the subrack.



Place the unit in a static protective bag.



Remove the replacement unit from packaging.



Insert the unit into the empty sot in the subrack.

CAUTION! Great care must be taken not to damage the EMC fingers on the unit to be installed or any adjacent units in the subrack.


Topic 4 Page 33






Slide the unit along the runners until the face panel makes contact with the EMC fingers and face panels of the adjacent units.



Push the unit home by pressing the two card ejectors inwards towards the centre of the unit.



Ensure that the unit is correctly located by operating the card ejectors.


Topic 4 Page 34



1.2


DC Power And Earthing Note: All work is carried out in accordance with local requirements e.g. Electrical Installations BS 7671:1992; the National Electric Code, ANSI/NFPA 70; the Canadian Electrical Code, Part1, C22.1. Note: Prior to the start of ANY activity (Installation or Commissioning) on an InService exchange, or on ANY equipment within a live/ in-service environment, the Engineer must contact the overall installation authority. Note: Ensure a Safety Protective Earth conductor is secured from each subrack Safety Protective Earth terminal to the nearest rack Safety Protective Earth Terminal.

1.2.1

General The OMS1664 subrack has two power supply unit cards. A sketch of the DC power infrastructure for the OMS1664 is shown in Figure 1-21. T he requirements below are based on a OMS1664 with a typical power consumption of 963W. 

Design Current: The load for the OMS1664 is taken as 963W which gives a load current of 20A at 48V.



Cable Protection: The protection of cables C, D, E and F shown in Figure 1-21 is provided by a 40A BS88 fuse or 40A Type B MCB at the E.O.S. distribution board. This device must only be used in an ambient temperature equal to or less than 35°C. A 25A Type B MCB must be used to protect the cables within assemblies J and K. This MCB must only be used in an ambient temperature (at the rack-top) of no more than 45°C.



Cable Size: The size of cables C, D, E and F shown must be 16mm² to accommodate the load current of 25A, grouping factor for 4 circuits and ambient temperature of 45°C. Cables C, D, E and F are serving one subrack. It is dual fed with 2 x –50v and 2 x +50v.

The size of cables within the assemblies J and K must be 4mm² with 85°C insulation and must be screened for EMC purposes. This is to accommodate the full load current and an ambient temperature of 45°C. 

Volt-drop & Maximum Route Length: The volt-drop from the power plant to the equipment must be no more than 2V. Therefore assuming no more than a 1V drop from the power plant to the Distribution Board (DB). the length of cables C, D, E and F must be no longer 10m. The length of cables within the cable assemblies J & K must be no longer than 2m.



Earthing Conductors: The earth cable marked G in Figure 1-21 must be 16mm². The bonding conductor marked L in Figure 1-21 must be 16mm². The protective earth conductor marked M in Figure 1-21 must be 6mm².


Topic 4 Page 35




Figure 1-21: Sketch of the OMS1664 Infrastructure

Safety Protect Earth conduct

A list of the components used above and their part num bers are shown below.

Table 1-2: Marconi Part Numbers Part

Description

Marconi Code

A&B

Fuse 40A BS88

SITE SPECIFIC

C&D

Cable 16mm² Blue PVC

1WAA 10014 AAG

E&F

Cable 16mm² Black PVC

1WAA 10014 ADJ

G

Cable 16mm² Green/Yellow

1WAA 10014 ACR

H&I

MCB 25A Type B

1CFB 20030 ABA

J&K

Cable Assembly 4mm² 2-Core Blue & Black EMC Braided

1HAU 62488 ***

L


1WAA 10014 ACR

M


1WAA 10015 ACT

Summary 

Infrastructure based on a maximum load of 20A at 48V.



Infrastructure based on an ambient temperature of 35°C at D.B. and 45°C at rack-top.



Cable protection, 40A BS88 protects the 16mm² cables and 25A Type B MCB protects the 4mm² cables.



Cables C, D, E and F from D.B. to rack-top must be 16mm² and may be grouped with up to three identical circuits.


Topic 4 Page 36






Cables within assemblies J and K must be 4mm² and EMC Braided.



Cable installation for the 16mm² is BS7671 Method 11 (Installed on perforated cable tray).



Cable installation for the assemblies J and K is BS7671 Method 12 (Installed in free air).



Maximum length allowed for cables C, D, E and F is 10m.



Maximum length allowed for cables within assemblies J and K is 2m.



Volt-drop based on 1v from the D.B. to the PLTU.



The earth cable from the rack earth terminal to the distribution earth bar must be 16mm².



The bonding conductor from the rack-top earth bar to the rack must be 16mm².



The sub-rack to cabinet bonding conductor must be 4mm².

Table 1-3: OMS1664 Full Shelf Typical Power Consumption Item

Power Consumption (typical), Watts

Number in Shelf

TOTAL Power Consumption , Watts (typical)

Fast E (16 port) 30W , LTU 15W

45

16

720

CCU

16

2

32

FAN TRAY

100

1

100

Switch (128 x 128)

30

2

14

Management/Sync LTU

13

1

13

Power LTU

6

2

12

Alarms & Aux LTU

6

1

6

Aux Card

20

1

20 TOTAL 963W (typical) 1252W worst case (30% added)

1.2.2

Install DC Cables Note: All cables should be fully proven using a continuity tester before any connections are made to validate both source and destination address of each cable. Isolate the power feeds into the top of the fuse or breakers to be terminated. This could mean the removal of end of suite fuses or placing a main switch in the ‘OFF’ position. Note: Having isolated fuses or switches ready to work on the equipment, ensure a label is attached to the empty fuse carrier or switch to ensure the supply is not restored while work is still being carried out.


Topic 4 Page 37



1.2.2.1


EF 80/Power Distribution cabinet/Racks ( -ve Suite Distribution ) 2

The -ve DC supply cables (16mm blue ) to the first equipped rack in the suite will occupy the next available fuse positions on the EF 80/Power Distribution cabinet unless instructed otherwise. This is to be fused at 32Amps. 2

Two 16mm blue cables are to be provided from the EF 80/Power Distribution cabinet for each 16-64 rack/cabinet., Starting at the first fuse position, secure appropriate identification label to the end of the cable. Route the cable along the central power tray to the required destination. Take slack back to the EF 80/Power Distribution cabinet ensuring that there is sufficient slack for bends, and that there are no kinks in the cable. At EF 80/Power Distribution cabinet, take the cables down to the required fuse position and measure enough length for terminating. Cut cable. Secure cables with temporary ties to prevent slippage. Repeat the above until all the racks within the suite have been cabled.

1.2.2.2

Main Earth Bar to Racks 2

Each equipped rack +ve ( 0 volts ) supply is supplied by two 16mm cable. Run the cable in the central power tray from the Main Earth Bar to each equipped rack. Take slack back to the Main Earth Bar ensuring that there is sufficient slack for bends, and that there are no kinks in the cable. Measure cable ensuring enough length for terminating. Cut cable. Secure cables with temporary ties to prevent slippage. Repeat the above until all the racks/cabinets within the suite have been cabled. Note: If the installation is on a raised floor the cables are obviously cabled from the bottom. Using the same method as above run the cables under the floor on a designated runway and up the inside of each rack to reach the power distribution rails.


Topic 4 Page 38



1.2.2.3


Form and Terminate Cables at the Rack Top Fuse Rail. The type of fuse rail will be dependent on customer requirements. The following identifies a selection that could be used on this product. The rack top fuse rail are to be mounted in rack/cabinet positions as identified on the contract engineering drawing. All 16-64 subracks are to be dual fed. Form the supply cables through the side of the power tray at the rack position, ensuring enough cable is fed through for termination onto the rack top fuse rail. Secure the cables to the rack support bracket. Run the cables through the cable holes at the top of the cabinet (overhead cabling) and across to the circuit breakers. DC supplies to the Cabinet/Rack are terminated using 'CEMBRE' pins on to the 2 16mm cables. Use pin code 1CXB21141 ABJ for the -48v cables and 1CXB21141 AAC for the 0v cables. Strip approx 12mm of insulation from the cable end using the Kabifix stripping tool 1 PAC10349AAF. Note: Ensure the correct cutting depth is set on the tool. Check on a piece of scrap cable. Inspect the cables to ensure there are no nicks or cuts in the copper conductors. Position the correct coded CEMBRE pin onto the stripped end of the cable. Ensure that the wire enters fully into the hole and crimp the pin to the cable using the approved crimping tool. (CEMBRE HNN4). Loosen off the grub screws in the relevant terminal blocks and the cable connector on the circuit breakers. Connect the -ve cables ( blue ) to the cable connector which sits on top of the circuit breakers and bus bars as shown on the 1HEE ***** ( rack layout drawing ). Repeat the above for the two +ve cables ( black ) Terminating on the designated through terminals. Figure 1-22 shows the typical supply termination of the circuit breakers. Gently pull on each terminated cable to ensure the grub screw has made full contact with the pin and the cable is secure. The banks of circuit breakers should already be connected together with copper bus bars. The 0V terminal blocks should be linked together with jumper bars. Refer to. Figure 1-22. The Distribution panel is fitted with an earth lead which must be connected to the rack framework.


Topic 4 Page 39




Figure 1-22: Typical termination of the Rack Top Fuse Rail

2 Core EMC Braided Cables


Topic 4 Page 40



1.2.3


Preparation of ETSI Fuse Rail Note: To ensure a sound connection to the 0 Volt rail any sign of VERDIGRIS (green film on copper) should be cleaned off using wire wool.

Figure 1-23: ETSI DC Power Rail (Typical Only)

At the top of the rack, secure the cable to the debris tray with plast ic ties. Ensure sufficient length is left on the cable for terminating the earth wire to the rack framework. Note: Breakout is 400mm for all seven wires. Remove the inner/outer sheathing from the cable. Cut back the braiding to 25mm. Open out the braiding and select approx. 20 wire strands and twist together. Cut off the remaining wires from the braiding level with the cable sheathing. Remove approx. 12mm of insulation from the 2.5mm cream cable and solder to the twisted braiding ensuring a good connection is made. Fit heatshrink over the joint. Note: Prior to terminating any cables carry out a continuity check to ensure correct polarity. Dress wires 1,3,5 (0 Volt) to the 0 Volt termination rail, fit spade connectors 1CXB 21161 AAW, using crimp tool BMR6U3 (1PAC 10336 AMA) to each wire and terminate on the rail. See Figure 1-24.

Figure 1-24: 0 Volt Earth Rail

5


3

1

Topic 4 Page 41

Wire Number



1.2.3.1


DC Rail 332-0293/05.01 Fit rack top DC rail 332-0293/05.01 to the top most position in the rack. Fix using four 2 M5 screws provided. Ensure supplementary earth bonding conductor 6mm grn yel, 336-1674/02.01 is fitted from DC rail to rack earth bonding point. M6 ring terminal is provided to fit to rack 92 top earth stud. Fit MCBs, earth terminal blocks and supplementary earth blocks (grn/yel) to DIN rail. Ensure they are equally spaced about the rack centre line. See Figure 1-22. Fit jumper bars to earth terminal blocks and screw in position. 2

Link earth terminal blocks to supplementary blocks using 6mm grn/yel cable provided. Fit end stops to secure components to the rail. See table below for additional codes. Fit common rail and connectors to MCBs. This will allow the application of larger cables.

Table 1-4: DC Rail Part Codes Description

Common Code

2

Wire insulated 6mm link wire for 0volt terminal to Grn/yel

55210-44/235

Connector for use with common rail on MCB

6100331-0028

Commoning rail for MCB

6100394-0063

End stop

67372-27/012

0 volt terminal block jumper bar

67372-51/112

Terminal block 0 volt

67372-51/113

MCB 16A type B

1CFB 20019 AER

M6 ring terminal 6mm

1CXB 21237 AAV

Supplementary earth block (grn/yel)

67372-51/114

Screw M5

1MAB 20025 AAH

Cage nut

1MAB 20026 AAK

1.2.3.2

Factory Assembled Power Looms fitted with 3 Way ‘D’ Type Connectors (1HAU 62488 AAL) OMS1664 The cable consists of 3 individual 4.0mm insulated wires, blue (-ve), black (+ve) and Gn/Y (Eth). The power supply cables from the subrack to the DC distribution rail are factory assembled and ready for fitting. The ‘D type end is connected to the upper part of the subrack in slots 19 (pwr A) and 20 (pwr B). The free end is connected to the appropriate circuit breaker and earth connection strip on the DC distribution rail.


Topic 4 Page 42




Figure 1-25: Factory Assembled Power Looms

The OMS1664 1HAU62488AAL power cable has a length of 2100mm.

1.2.3.3

Factory Assembled Power Looms fitted with 3 Way ‘D’ Type Connectors (1HAU 62489 AAN) OMS1634 The cable consists of 3 individual 4.0mm insulated wires, blue (-ve), black (+ve) and Gn/Y (Eth). The power supply cables from the subrack to the DC distribution rail are factory assembled and ready for fitting. The ‘D type end is connected to the upper part of the subrack in slots 19 (pwr A) and 20 (pwr B). The free end is connected to the appropriate circuit breaker and earth connection strip on the DC distribution rail.

Figure 1-26: Factory Assembled Power Looms

The OMS1634 1HAU62489AAN power cable has a length of 1100mm.

1.2.4

Preparing Sub-Rack Power Leads to DC Rail At the side of the rack, secure the cable to the rack fram ework with plastic ties. Dress blue (-48Volt) cables to the bottom of the relevant circuit breakers. Remove approx. 7mm of insulation from each wire and terminate, fully tightening the screws. Gently pull on the terminated wire to ensure terminal clamp has made full contact with the wire and the cable is secure. Dress the black cables (0 Volt) to the bottom of the relevant earth terminal blocks. Remove approx. 7mm of insulation from each wire and terminate, fully tightening the screws. Connect cream EMC earth cable to supplementary grn/yel block.


Topic 4 Page 43




Figure 1-27: Power LTUs DC cables

DC Power Cables to Power LTUs

1.2.5

Earthing

1.2.5.1

Rack Earth Bonding 2

Run a length of 16mm G/Y cable from the customer’s main earth bar to the rack via the central power tray. Strip approx. 10mm of insulation from the cable and crimp an “Elpress” M6x16 ring lug to both ends using the appropriate “Elpress” crimping tooling and die. Fasten the cable to the terminating stud on the customer’s main earth bar using the washer and nut supplied. Fully tighten the fixings. Route the cable to the rack Earth stud (4 are provided 2 x top and 2 x bottom of rack) and fasten to the stud using the fixings already in place. Refer to Figure 1-28 below. Note: The earth cables supplied are flexible cables and the correct lug and crimp tool should be used. Ensure the lug has the suffix ‘F’ marked on it i.e. 16mm x 6f. The BMR 16U3 or the Elpress T2600 crimp tool fitted with dies marked with the number 9.

Figure 1-28: Rack Protective Earth Terminal 16mm Cable from the Main Earth Bar. The location of the rack Safety Protective Earth Terminal will be dependent on Rack

1.2.5.2

Subrack Safety Protective Earth Using the KOP supplied by contract engineering run the 6.0mm² G/Y cable from the subrack safety protective earth terminal marked:


Topic 4 Page 44




on the front right hand side of the subrack to the nearest rack Safety Protective Earth Terminal positioned on the top or bottom of the rack marked:

Connect one end of the Safety Protective Earth conductor to the connection point on the subrack (no leg required). Crimp an “Elpress” M6x6mm lug to the free end and secure using existing fixings at the top or bottom of the rack. See Figure 1-29 below. Ensure black plastic cover is replaced on earth stud after termination of earth bonding lead.

Figure 1-29: Subrack Safety Protective Earth Terminal Subrack Safety Protective Earth. Ensure Black Cap is fitted after connection, 6mm cable must be fitted

1.2.6

Subrack Fan Tray The fan tray is a common unit for the standard and compact subracks and is a mandatory requirement. The fan tray is fitted into the bottom of the subrack and secured in place by four pozi screws


Topic 4 Page 45




Figure 1-30: Fan Tray

The fan tray is designed such that in the event of a single fan failure the remaining fans are driven at full speed to help compensate for the fan failure. This applies in all fan tray operation modes and under this condition, the fan tray generates a major alarm condition both visually, front panel LED and via the 9 way connector.

1.2.6.1

Fan Tray Earthing The fan tray has a Safety Protective Earth Terminal Marked on the left hand side of the unit. Connect a 6 mm Safety Protective Earth Conductor to the rack safety protective earth terminal marked :

The safety protective earth cable must be connected prior to connecting any power to the unit. See Figure 1-31 below.

Figure 1-31: Fan Tray Earthing

1.2.6.2

Filter Cleaning An air filter is housed inside the fan tray and can be pulled out without removing the fan unit for cleaning or replacement The life time of the filters is dependent on the specific environmental conditions the equipment is installed into and the distance from floor level i.e. the position of the subrack in the rack. There is a filter block alarm which will be raised when the filter becomes blocked or dirty and the filter must be replaced/cleaned as soon as possible to ensure maximum airflow to the subrack.


Topic 4 Page 46




The front panel LED will flash amber when this occurs.

Figure 1-32: Filter Cleaning

Fan Tray Filter.

A fan tray is required directly below each 16-64 subrack .

1.2.6.3

1.2.7

Replacing the Fan Tray 1

Remove the fuse/switch off the Cct breaker at the fuse rail

2

Disconnect the DC power cable from the fan unit

3

Disconnect the safety protective earth conductor

4

Disconnect the alarm cable

5

Unscrew the four retaining screws on the fan unit. (A phillips screwdriver is required).

6

Slide out the fan unit

7

Slide in the new fan unit and secure using the four phillips screws previously removed.

8

Connect the safety protective earth conductor.

9

Connect the alarm cable. (Secure using the two retaining screws).

10

Connect the DC power cable. (Secure using the two retaining screws).

11

Refit the fuse/Switch on the Cct breaker.

Fan Tray Power Supply The fan tray is powered from a single –48V DC supply, which is capable of powering the entire fan tray.


Topic 4 Page 47



1.2.7.1


Power Connector Pinout 1 Negative Supply A (-48V Nom) 2 Common 3 Negative Supply B (-48V Nom)

1.2.8

Cable Routing Feed fan cable assembly up the right hand side of the cabinet to rack top fuse and earth rails. Connect –50v wire to auxiliary fuse and 0v wire to the rack top earth rail. Ensure cables are routed to avoid catching on brackets. The fan tray power and alarm cables should be installed in such a manner to avoid stress on the cables and connectors when closing the rack door.

Figure 1-33: Cable Routing

DC Power Cable Note: Fan Unit must have the Safety Protective Earth conductor connected prior to powering up

1.2.9

Fan Fusing The rack top Cct breaker is to be rated at 6A, with a 20A fuse at end of suite. Feed a 2 16mm cable from end of suite to auxiliary fuse.


Topic 4 Page 48



1.3


Cabling and Terminating Copper Note:

Prior to the start of ANY activity (Installation or Commissioning) on an InService exchange, or on ANY equipment within a live/ in-service environment, the Engineer must contact the relevant overall installation authority

Cable routes will have been planned at the engineering stage of the contract. Consultation with the Customers Representative for a variation in the routing of the cables to suit site conditions may be agreed, so long as the length of the cable run does not exceed the length of the cables engineered for that site. All drawings must be red lined to identify new routes and sent to Contract Engineering who must agree to any proposed changes in cable routes. The routing of the cables from the OMS1664 to frame will be dependent on rack design, equipment configuration, OHI and frame, however, the following cabling rules always apply: 

Cabling on transmission cable trays should be kept as flat as possible. Sharp bends of cables across trays should be avoided and no slack should be left in any cabling within the rack area.



Cabling from the equipment racks to Digital Distribution Frames (DDF) should be routed via the longitudinal suite transmission tray and appropriate transverse cable tray leading to the vertical of the DDF on which the cable terminates (i.e. same side cabling).



Cabling should only be tied when leaving a transverse tray and dropping to a longitudinal tray (or frame), or to the central conduit bearer when entering a rack.



At the top of a vertical cable run, bends in the cable form should be sufficiently large enough to ensure that the weight of the cables is supported by the ties throughout the vertical run and not by the horizontal section.



Cables should be routed in a manner to ensure a minimum separation of 200mm is maintained at all times between signal and AC cables. It is permissible to allow such cables to cross at 90° to each other.



Cabling should enter ETSI rack from the longitudinal suite transmission trays on the opposite side of the suite centre line via the central conduit cable bearer (i.e. opposite side cabling).



Cables should be secured to the support brackets in the cable void/duct with plastic cable ties.



Cables of less than 20 pair should be mixed in bundles not exceeding 50mm in diameter.



Sharp bends must be avoided at all times.



Always make provision for future growth and expansion. Allowances in cable forms should be made for the removal of existing equipment for maintenance, etc.


Topic 4 Page 49


OMS1664 Product Family Release 1.3 

Installers are advised that where Marconi have to pass cables through any cable hole that has not been previously fire stopped and does not have an instruction label adjacent to the hole they MUST contact the customers Cable Hole Management Team if applicable



Additionally where cables are to be passed through previously fire stopped cable holes; installers MUST follow the Mandatory Instruction Label adjacent to the hole.



Terminations should not be stressed.

Note:

1.3.1.1


Installers are advised that where cables pass through cable holes that have not been previously fire stopped they MUST contact the customers Cable Hole Management Team if applicable. Where cables are to be passed through previously fire stopped cable holes; installers MUST follow the Mandatory Instruction Label adjacent to the hole.

Cable Identification and Labelling Cables will be identified by 'buzzing out' and reference to the site cabling diagram. As cables are identified a cable label will be fitted. Cables pre-terminated to a patch panel will have identifying labels fitted. Refer to the site cabling diagram. The cable label will have information to identify the terminating position on the equipment to which that cable end is to be connected. The label should be securely wrapped around the cable ensuring that the information written on the label is clearly visible.

1.3.2

Cabling to OMS1664 Cabling to the OMS1664 subrack is summarised as follows.

1.3.3

Cabling to OMS1664 LTU Interface Area The 2Mbit/s LTU interface area of the OMS1664 utilizes 

75 Ohm unbalanced (3002 coaxial cable) fitted with 1.0/2.3 male straight long push pull connector 1CXB 21213AHD or



120 Ohm balanced (twisted pair) fitted with a ‘D’ Type connector, see Figure 1-34.


Topic 4 Page 50




Figure 1-34: LTU Area. 32 Ports Per Card

120 Ohm Interface area `D’ Type Connectors

75 Ohm Interface Area 1.0/2.3 Connectors

Note: Interface area will be either 120 Ohm or 75 Ohm. Above picture shown only to identify both types of interface available A fully cabled 2Mbit/s LTU interface area accommodates up to 1008 coaxial cables (504 ports) or 64 x 37 way ‘D’ type connectors (504 ports). Note: The 2Mbit/s LTU interface area of the OMS1664 sub-rack, when fully populated, will hold up to 4 tribs (max per shelf).. Four LTUs equate to one trib Each LTU has 32 ports. On even numbered 2Mbit/s LTUs there is a requirement of one (1) free port to be left which can be used for monitoring purposes. For allocation of external cables to the LTU interface area refer to the information supplied by the overall installation authority. Cables must be run in accordance with the General Cabling Rules. It is imperative that these rules are adhered to at all times. The forming and terminating of cables will be accordance with the exchange cable running out list (CROL). Due to the heavy volume of cables in a restricted area it is essential that careful consideration is paid to the approach and marshalling of cables at drop off areas to maintain the best possible feed pattern down the rack. During cabling it is advisable that crossovers/twists should be kept to a minimum down the rack to prevent congestion, and thought must be given to keep ultimate cable spaces clear. Starting at the first position to be cabled, attach cable labels, refer to 1.3.1.1, or mark the cables with a marker pen to identify the to/from routing of the cables and run the cables in manageable bundles (32 cables) to or from the first required position in the rack. Arrange cables on the cable trays to ensure a direct approach to the rack, taking a side sweep as necessary to leave space for the ultimate growth within the rack. Marconi Copyright- Refer to title page

Topic 4 Page 51




Temporarily tie cables back at bends or employ cabling aids to maintain direct approach and to allow cables to be disciplined in formation. Bring down cables in manageable quantities; marshal them into formation on the roll bar. Note: Bundles of cables must be secured in formation on the roll bar with plastic cable ties. Where cables are fed from the base of the rack the procedure is the reverse of the above. Requirements for future cabling should again be taken into consideration. Cables will require to be supported at regular intervals within the cable void. To avoid congestion within the racks cabling void, the LTU interface area must be cabled from both sides. Note: Cable management bars are required to manage the cables. Refer to Contract Engineering Face Layout information for correct placement of cable management bars in rack.

1.3.3.1

External Cabling 75 Ohm LTU Interface Area (Coaxial Cable) Figure 1-35: Typical Cabling Layout in a 900 x 3000mm Rack

2Mbit/s Coaxial Cable to LTU/Trib Area Routed Via Cable Duct and Secured to Cable Management Bars Above Subrack

STM-1 Electrical Cables Secured to Cable Fingers on Cable Raceway

LH Cable Duct Side View

RH Cable Duct Side View

Cables to the subrack should be fed, as per normal transmission practice, from the overhead baskets situated at the rear of the suite, cabling over the centre roll bar into the top of the cable ducts right or left. Note: The cables to LTU positions 1 to 8 should be formed in the left-hand cable duct. Cables to LTU positions 9 to 16 should be formed from the right-hand cable duct. Note: The subrack should be cabled LTUs 1 to 4 (trib 1) firstly and working inwards to the middle of the shelf. Marconi Copyright- Refer to title page

Topic 4 Page 52




Feed the cables for LTUs 1 to 4 inclusive to the outside of the ducts brackets, cables for LTUs 5 and 8 to be fed to the inside of the previous 4 LTU cables, see Figure 1-36 All cables to the subrack should be formed in the cable duct, dressed across the cab le management bar and secured using plastic ties. Run the cables in bundles of 32 to each half of the LTU through the cable duct and fit temporary ties to support the cable bundles wherever possible. Bring cables from the side of the rack to secure to the front of the CMB mounted above the subrack interface area to drop vertically over the LTU. Drop the cables down the front of the CMB to the top half of the LTU interface card and secure temporarily to the bar, see Figure 1-36. Note: Check the cables are long enough to reach their terminating position on the LTU interface card. Do not terminate the cables at the LTU interface card at this stage.

Figure 1-36: Cables formed to front of LTU 1 to 6


Topic 4 Page 53




Figure 1-37: Running Stitch

When the bundle of 32 cables have been installed to the front of the LTU, termination of the cables at the LTU interface card can commence. Note: Extreme care must be taken when routing cables to the front of the LTU

interface area. Cabling should not encroach on adjacent LTU interface cards; there must be sufficient room to remove, for maintenance purposes, the LTUs & AIUs behind the cable forms. To achieve maximum cable management efficiency apply a running stitch to the cable form. see Figure 1-38 A v o i d a n y c r o s s o v e r o f c a b l e s a n d a l lo w a s p a c e b et w e e n e ac h r o w o f 6 4 c a b l es (1 LTU interface card), for easy insertio n of con necto r extraction too l.

Starting with cables to the top half of the LTU, terminate each cable to its designated port. When terminating is complete, apply running stitch up to the cable management bar and secure with cable tie. Note: Ensure that there is no pressure exerted on the connections therefore the cables must allow for some movement. Remove temporary cable tie from the CMB holding cable bundle Terminate each cable to designated port. When the termination is complete apply running stitch up to CMB and secure using a cable tie.

Figure 1-38: Cable Forming Diagrams


Topic 4 Page 54




Dress the two bundles back to the front of the upper CMB, ensuring that there is no further pressure exerted on the connections therefore the cables must allow for some movement. The cables should sweep up to the CMB and outwards to the cable duct, before exiting, ensuring they are not stressed and moving any excess cable back through ducting to source (overhead ironwork /basket). Note: Ensuring the minimum bend radius is maintained at all times on all cables and the weight of the bundle is equally shared. Note:

Ensure that the cable forms do not impede the air flow/circulation of the ventilation area at the top of the sub-rack.

The cables to the subsequent LTU interfaces should follow the same route and method, being secured in the duct to the side of the first 64 cables.


Topic 4 Page 55




Figure 1-39: Securing Form to CMB with Cable Tie

Running stitch

Form secured to CMB with cable tie

Figure 1-40: Tribs 1-4 Cabled with ST 212 Coaxial Cable


Topic 4 Page 56






Tribs 508 shown. Cables secured on both management bars

Tribs 1-4 pass behind upper management bar and brought to the front of the lower bar and secured. See Figure 1-40 for pictorial view of Tribs 1-4

1.3.3.2

External Cabling 120 Ohm LTU I/F Area (‘D’ Type Twisted Pair) Cables must be run in accordance with the General Cabling Rules. It is imperative that these rules are adhered to at all times. The forming and terminating of cables will be accordance the exchange Cable Running Out List (CROL). A fully cabled 2Mbit/s LTU interface area accommodates 64 x 37 way ‘D’ type connectors (504 ports). Note: The 2Mbit/s LTU interface area of the OMS1664 sub-rack, when fully populated, will hold up to 4 tribs (max per shelf).. Four LTUs equate to one trib Each LTU has 32 ports. On even numbered 2Mbit/s LTUs there is a requirement of one (1) free port to be left which can be used for monitoring purposes.


Topic 4 Page 57




For allocation of external cables to the LTU interface area refer to Contract Engineering information supplied. During cabling it is advisable that crossovers/twists should be kept to a minimum down the rack to prevent congestion, and thought must be given to keep ultimate cable spaces clear. Starting at the first position to be cabled, attach cable labels, refer to 1.3.1.1 or mark the cables with a marker pen to identify the to/from routing of the cables and run the cables in manageable bundles (32 cables) to or from the first required position in the rack. Arrange cables on the cable trays to ensure a direct approach to the rack, taking a side sweep as necessary to leave space for the ultimate growth within the rack. Temporarily tie cables back at bends or employ cabling aids to maintain direct approach and to allow cables to be disciplined in formation. Bring down cables in manageable quantities; marshal them into formation on the roll bar. Note: The cables to LTU positions 1 to 8 should be formed in the left-hand cable channel. Cables to LTU positions 9 to 16 should be formed from the right-hand cable channel. Note: The subrack should be cabled LTUs 1 to 4 (trib 1) firstly and working inwards to the middle of the shelf. All cables to the subrack should be formed in the cable channel, dressed across the cable management bar and secured using plastic ties. Run the cables to each half of the LTU through the cable channel and fit temporary ties to support the cable bundles wherever possible. Bring cables from the side of the rack to secure to the front of the CMB mounted above the subrack interface area to drop vertically over the LTU. Plug up each cable as it is installed and secure using the retaining screws on the connector. Dress any excess slack away from the subrack into the cable channel. Refer to Figure 1-43 to Figure 1-45. Note: Extreme care must be taken when routing cables to the front of the LTU interface area. Cabling should not encroach on adjacent LTU interface cards; there must be sufficient room to remove, for maintenance purposes, the LTUs & AIUs behind the cable forms.


Topic 4 Page 58




Figure 1-43: Plugging and Dressing of Cables (1)



Topic 4 Page 59





1.3.4

Cabling to STM-1 High Band Trib Area The high band tribs would primarily be situated in the lower card cage area of a SMA , but the subrack could be configured as a mini cross-connect with the requirement for 256 STM-1 electrical/optical ports (32xSTM-1 cards, 16top/16bottom cards) .

1.3.4.1

STM-1 Electrical Card There are eight interfaces on each card; four groups of two, consisting of a Tx, Rx port. Note: .Ensure that cable routes follow the 2M/bit(s) cables off the overhead cable baskets.


Topic 4 Page 60




Figure 1-46: STM 1E High Band Trib Cards

The preferred cable for the high band electrical tribs is BR 7000 fitted with right-angles connectors. Route the cables down the cable ducts, separate if possible from the 2Mbit/s coax. Securing them to the Segregation Brackets. Run the cables in card allocation sequence, across the fibre/cable channel Form the cables in a group of six to drop vertically above their designated card, see Figure 1-47. Place a cable tie around the 8 cables and the front of the right-angled bracket, this action will allow for segregation/identification purposes and also to give the cable form the lowest profile as possible at the front of the trib card. The 8 coax with a 1.0/2.3 right-angle connector fitted to each should be dressed to the correct port on the card. Marshall cables to the port terminations, alternating the pairs of cables to be dressed down the cards from right then left. Note:

When removing a trib card for replacement/maintenance, due to the angle of the connector, care should be taken to limit knocking cables formed to the adjacent cards.


Topic 4 Page 61




Figure 1-47: STM-1 Electrical Lower Shelf Cable Management

Cables secured in positions shown

View from above

Note: Left hand side of shelf shown. Cable to the right hand side are a mirror image.

Figure 1-48: STM-1 Electrical Upper Shelf Cable Management

Note: When cable management bracket 1MBD60712AAS is supplied this must be used. The cables must follow the same forming and management as shown in Figure 1-47.


Topic 4 Page 62



1.3.4.2


STM-1 Electrical and Optical Mix In some cases there may be a requirement to mix electrical and optical trib cards on the same shelf. The electrical cables should be tied to the rear of the management bracket allowing enough space for the optical cables to pass underneath without any pressure being put on them.

Figure 1-49: Cabling of an STM-1 Electrical and Optical Mix Velcro must be used at all times on optical cable Electrical cables tied off to rear of cable management bracket and the outside of the guides

Optical cables pass underneath the electrical cable and pass through the guides


Topic 4 Page 63



1.3.5


Cabling to OMS1654 Cabling of the OMS 1654 subrack is summarised as follows:

1.3.6

LTU Interface Area 2 Mbit/s trib. card cabling connects to the LTU area on the right hand side of the subrack. The following connectors may be utilised: 

75 Ohm unbalanced coaxial cable fitted with 1.0/2.3 male straight connector



120 Ohm balanced twisted pair cable fitted with a ‘D’ Type connector

Figure 1-50: LTU Area Interface

LTU Area


Topic 4 Page 64




Note: When cabling to a 75 ohm LTU 3002 coax cable or equivalent is to be used. A fully cabled 2 Mbit/s LTU interface area accommodates up to 256 coaxial cables (128 ports) or 16 x 37 way ‘D’ type connectors.

Figure 1-51: 75 ohm interface/ 120 ohm interface

Note: On even numbered 2 Mbit/s LTU's there is a requirement of one (1) free port to be left which can be used for monitoring purposes. Note: For allocation of external cables to the LTU interface area refer to Contract Engineering information supplied. 

Cables must be run in accordance with the General Cabling Rules It is imperative that these rules are adhered to at all times.



The forming and terminating of cables will be accordance the exchange Cable Running Out List (CROL).



If not already present secure a cable a management bar above the subrack using M6 screws plastic cup washers and cage nuts.

Note: Cable management bar is to be secured with formed section installed towards the rear of the cabinet. 

Commence cabling on the left hand side of the LTU card area. Connections to the ports on the LTU must be made starting at the top of the card.



Subsequent connections to the lower ports on the card are to be laid on top of those previously installed.


Topic 4 Page 65




Figure 1-52: Permitted Cable Forms



Form cables vertically up to the cable management bar and temporarily secure the bundle using a nylon cable tie.



On completion of card connections remove temporary cable ties.



Dress cable bundles serving the first two LTU’s to the left hand rack cable space. Dress cable bundles serving the remaining LTU’s to the right hand rack cable space.



Secure cables to the management bar with cable ties.

Note: It is essential that the cable bundle is formed to ensure that removal of adjacent cards is not impeded. Note: Ensure that a minimum bend radius is maintained on cable forms. Note: Cable bundles must not protrude beyond the front face of the subrack chassis.


Topic 4 Page 66




Figure 1-53: Cable Management Bar

Cable management bar

Note: A 3 SU gap (75 MM) is required between adjacent subrack s. This provides room for cable management and allows free air-flow from the top of the unit. Cable bundles from subracks mounted in the lower section of the rack are to be installed towards the rear of the cable space. Subsequent cable bundles are to be installed forwards of these.

1.3.7

Fan Tray Alarm Cabling A 9-way, D -Type connector is located on the front face of the fan tra y. This provides an alarm connection between the fan tray and the Management and Sync LTU.

Figure 1-54: Fan Tray Alarm Cabling Fan tray alarm connector


Topic 4 Page 67






Fit alarm cable 1HAU62481AAV to the connector on the fan tray.



Route cable across to right hand side of rack and into the cable duct. Run the cable neatly and secure using cable ties.



Route the cable above the subrack along the cable management bar and secure using nylon cable ties.



Drop the cable vertically down to Management and Sync LTU and connect to the Fan Management port on the card.

Note: Ensure that routing of cable does not impede removal of subrack traffic or power LTU’s.

Figure 1-55: Alarm Cable Assembly

1.3.8

Removal of 1.0/2.3 Connectors To remove a 1.0/2.3 connector from the LTU interface area and a right-angled connector from the high band trib area, locate the end of extraction tool 1PAC10345 BDV completely over the connector collar. Hold the cable near the rear of the connector to stop it from moving and pull back on the extraction tool to disengage the connector collar.


Topic 4 Page 68



1.3.9


Power Cable A power cable 1HAU62488AAL is to be connected between the rack fuserail and both subrack power LTU’s. 

Attach cable to the power LTU and secure using both retaining screws provided on the connector.



Run the cable up the right hand side of the rack (as viewed from the front) to the required MCB position on the fuserail. See section 5 of this document for cable termination method and subrack power requirements.



Secure the cable in the cable duct using plastic cable ties.

CAUTION! Ensure that the circuit breaker is de-energised to isolate the circuit from the power supply prior to connecting to the subrack.

Figure 1-56: Lower and Upper LTU Areas


Topic 4 Page 69



1.4

Cabling And Terminating – Fibre Note:

1.4.1


Prior to the start of ANY activity (Installation or Commissioning) on an InService exchange, or on ANY equipment within a live/ in-service environment, the Engineer must contact the relevant overall installation authority.

General Cablin g Rules – Fibre Opt ic Cables WARNING! Disturbance of fibre cables on in service equipment/splice tray can cause loss of the traffic. Extreme care must be taken when installing additional fibres. This section covers the management of fibres specifically to an OMS1664 subrack within a 900x300 front access rack. Showing lower LTU

1.4.2

Showing upper LTU

Insp ection An d Cleaning Of Optical Fibres If the Engineer has any doubt about the correct procedure, they must contact the Marconi Methods & Standards Dept in Liverpool.Managing Optical Fibre Cables To The Rack Note: All fibres should be coiled loosely. Tight turns, kinks or bends MUST be avoided. A minimum bend radius of 12 times the cable diameter must be maintained. Where more than one optical fibre is to be run in, the cables are to be labelled 2 metres from the ends with their designation BEFORE running in. Ensure that the anti-dust covers are fitted to the connectors; these covers are to be removed immediately prior to cleaning and connection to the optical port. Any non ruggerised fibres required to run externa l to the rack framework (overhead/underfloor) must be contained within flexible Kopex conduit , that is secured within the rack near the point of exit/entry, or contained within a suitable fibre trunking properly engineered to manage bends.


Topic 4 Page 70




Figure 1-57: Kopex Flexible Conduit

Figure 1-58: Typical Installation

1.4.3

Managing Fibres Within The Rack CAUTION! Great care must be taken to avoid crossing of fibres, sharp bends or coiling too tightly on management devices. Fibres must not be positioned where they could be trapped in rack doors closing door,


Topic 4 Page 71




Fibre spools are provided within the ETSI rack cable ducts for management of fibre patch cords. Spools are to be utilised to lose excessive cable slack, maintain minimum bend radii and prevent fibre damage. See below.


Topic 4 Page 72




Figure 1-59: Fibre Spool

Note: Velcro straps must be utilised where securing fibres. Care must be taken to ensure that straps are not over tightened thus avoiding fibre damage. The fibre tails should be fed across to the adjacent cable duct in the rack and onto the first fibre spool. Note: The lengths of the fibre tails used may require the use of additional spools to manage any excess length. Fibres are to be loaded in a ‘figure-eight’ formation around adjacent spools in order to ‘lose’ the excess length. The optical cables are to be fed from the spools and onto fibre management device provided with the subrack. Depending upon whether the rack is installed in an overhead or raised floor application fibre tails are to be managed to the rack exit at the top or bottom of the cable duct. Cables are to be run along the suite length (in Kopex flexible conduit if non-ruggedised) to an interface shelf. Note: Excessive slack should be avoided in fibres by correctly using fibre spools provided. Note: There may be a requirement for removal of fibres for maintenance or system upgrade. This should be considered during fibre installation.

1.4.4

Managing Optical Fibres – OMS 1664 Subrack Note: Where multiple fibres are interfaced to a single optical trib card careful management of the fibres to the ports is required. This is ensure that access to adjacent cards is not impeded.


Topic 4 Page 73




Cable management devices are provided in the mid shelf section of the subrack. Features are provided to correctly manage and route fibres feeding cards fitted in the subrack. Note: The fibre management device must be utilised to ensure the minimum bend radius and correct management of the fibre optic cables is maintained. Cables feeding common cards are to be bundled together and secured using a velcro strap. Dress bundles vertically upto the cable management area and locate inside the retaining rings provided as shown below.

Figure 1-60: Mid Shelf Fiber Guides

Depending on the card location in the shelf, route bundles left and right as required. Feed the fibre bundles around the guides provided and along the main channel of the management shelf. Run fibres into the cable ducts on either side of the rack. Note: It may be necessary to protect fibre cables in the cable ducts using flexible conduit e.g. Kopex.

Figure 1-61: View Showing Card Cage with STM-1 Optical Tribs


Topic 4 Page 74



1.4.5


Managing Optical Fibres – OMS 1654 Subrack Route fibres from the front of the card vertically to the top of the sub-rack. Route under coax and the cable management bar. Depending on the card location in the shelf, route bundles left and right as required. Form fibres into small bundles across the top face of the unit and feed across into rack cable space. Bundle and support fibres using Velcro ties. Run fibres into the cable ducts on either side of the rack. Manage cables onto spools and fibre support devices provided. Note: It may be necessary to protect fibre cables in the cable ducts using flexible conduit e.g. Kopex.

WARNING! Great care must be taken to avoid crossing of fibres, sharp bends or coiling too tightly on management devices. Fibres must not be positioned where they could be trapped in rack doors closing door, Fibre are to be kept neat, observe min bend radius. Do not stress fibres.

1.4.6

STM-1 Optical and Electrical Mix In certain configurations of the OMS 1664 product family there may be a requirement to mix optical fibre and electrical cables on the same trib card. Cable management devices have been designed to accommodate both copper and fibre cables. Primarily optical fibres must be enclosed within the fibre rings provided on the cable management device. Bundle patchcords together and secure using velcro straps. Route fibres through the fibre guides to either the left or right and into the cable duct. Copper cables must be bundled together and secured using nylon cable ties. Feed the bundle vertically up to the cable basket provided in the cable management area. Secure cables to the basket using nylon cable ties. Route cable bundles to either the left or right and into the cable duct.

WARNING! Nylon cable ties must not be used to secure optical fibre patch cords.


Topic 4 Page 75





Topic 4 Page 76



1.5


Code Of Practice - Handling Of Electrostatic Devices

1.5.1

Introduction Note: This instruction applies to ALL operators who will come into direct contact with, any (susceptible) piece of electronic hardware. Electrostatic devices are those devices, which may be damaged by the inadvertent discharge of static electricity from a charged body. The risk of damage, due to static discharge to a device, may cause the device to fail suddenly and catastrophically, or it may induce a partial defect within the device, which will cause subsequent premature failure. Static electricity can be, and is, produced in many ways. It can result from operators walking on floors, moving around on chairs, from the movement of operator's clothing or even casual brushing against racks, benches or walls. This code of practice specifies the generic procedures to be adopted that will minimise the risk of component failure due to electrostatic discharge to the device. All other previous Services Methods Manual statements regarding electrostatic precautions are revoked in preference of the below.

1.5.2

General Handli ng Proc edur es WARNING! Where operators are, or will come into direct contact with any (susceptible) piece of electronic hardware, then for the purposes of safe handling operators MUST wear an ESD bonding wrist strap. The strap MUST be tested and the quality record held indicating that the test has been carried out. When received, units containing static sensitive devices will be appropriately labelled. They should be left in their protective conductive packages/bags pending rack allocation. Units are provided typically in see-through anti-static bags. Wherever possible, checking and inspection of a unit should occur without removing it from the bag. However, if a unit is to be removed from its protective bag, for inspection or insertion into the rack, the following precautions must be adhered to: 

All operators must wear the approved conductive overall.



Fix a wrist strap and cord to a suitable non-mains earth (ESD stud) on the rack.



The unit must be handled by its front plate and board edges only.

Note: The wrist strap cords must have a 2Meg Ohm resistor fitted at either end. All straps and cords should be tested using a Wrist Strap Tester prior to use. Wrist straps should be worn in direct contact with bare skin and not over clothing.


Topic 4 Page 77




WARNING Under no circumstances is it permissible for units to be handled by unprotected operators.

1.5.2.1

Erecting Cabinets or Overhead Ironwork Where operators are erecting cabinets and/or overhead ironwork then it is not mandatory to wear a bonding wrist strap. Contact with such a mass metallic earth plane will in itself be sufficient protection against electrostatic discharge once the cabinet is installed and earthed.

1.5.3

Port able Field Service Kit (PFSK) An d Safe Handli ng Areas (SHAs ) Currently the philosophy for unit repairs is that all SIUs are to be returned to headquarters for modification and repair. Under no circumstances attempt to modify or repair a unit on site. Consequently, PFSKs and SHA equipment have been withdrawn from circulation and must not be used. If for any reason in the future PFSKs or SHAs are necessary on site, Installation Methods and Standards must verify their specification before use.

1.5.4

Wris t Strap Tester Note: Ensure the wrist strap tester has a valid test label. If not, return to Installation Stores for test and replacement.

Figure 1-62: Wrist Strap Tester

Test Button


Topic 4 Page 78




At the start of each day’s activity all wrist straps and cords are to be checked using a wrist strap tester, see Figure 1-62 for typical tester. To check:

1.5.5



Fit the wrist strap to wrist.



Fit cord from wrist strap to the appropriate stud on the top of the tester.



Press the test button. Any result other than a "pass" LED illuminating, reject the cord and strap and obtain replacements. A pass result will emit a continuous bleep.

Test Recor ds Results of the test detailed in 1.5.4 are to be recorded on the appropriate inspection record card supplied to site or a note to the same effect can be made in the site diary. It is important that all straps and cords are tested and that any operator who arrives on site with a personal strap identifies this fact in order that it will be included on the inspection record.


Topic 4 Page 79




Blank Page


Topic 4 Page 80



Installation and Commissioning Commissioning

Chapter 2: Commissioning 2.1

Introduction

2.1.1

Introdu ction and Scope This procedure details the initial tasks that need to be performed when carrying out the commissioning of the OMS1664, OMS1654, OMS1644, and OMS1634 Multiplexer at Release 1.3 prior to the use of the Local Craft Terminal (LCT) and LCT Subsystem (LCTS) software for the commissioning and configuration process proper. For all information concerning the use of the LCT in this commissioning and configuring process, refer to TOPIC 5.

2.1.2

EMC Prot ectio n An OMS 1664 sub-rack must have all card slot positions and all LT U positions fitted to maintain the EMC performance of the equipment. If any shelf slots do not have cards fitted then slot blanking plates should be fitted to maintain the equipment EMC protection.

2.1.3

Static Sensit ive Warni ng Equipment referred to in this specification contains static sensitive devices therefore an ESP wristband MUST be worn and clipped to the rack at all times. Other relevant anti-static precautions are also to be observed at all times during commissioning work.

2.1.4

Cleanin g Procedur es for Optical Conn ectors All optical fibre connectors will require inspection for damage and cleanliness. It is important to use only calibrated non-attenuating SM optical fibre test leads fitted with the appropriate connectors.


Topic 4 Page 81



2.1.5


Test Equipment 1

For PDH Tributaries a Pattern Generator/Error Detector, with bit by bit comparison, capable of operating at 1.5, 2, 34, 45 and 140 Mbit/s. Suitable instruments are the Wandel & Goltermann PF4, the Hewlett Packard 3764A, the Hewlett Packard 37117B/C (with PDH Tx/Rx modules) or equivalent.

2

For STM-1/4/16 Tributaries a SDH Analyser capable of simulating/analysing electrical or optical STM-1, STM-4, or STM-16 signals. Suitable instruments are the Anritsu MP1560A, the Hewlett Packard 37717B/C (with electrical and optical STM-1/4 modules) or equivalent.

The instruments in (1) and (2) should be capable of monitoring errors over a 24 hour period, with an associated printout of the result.

3

10/100M Fast Ethernet Tributaries:– Compatible Test equipment

Anritsu MD1231A IP Network Analyser Or

Agilent J2127A Transmission Test Set

Or

EXFO-8510 Packet Blazer

Or

DLI NIC GigE with 10/100 module

Or

Smartbits 200 with 10/100 SmartMetrics Card.

4

1G Ethernet Tributaries:– Compatible Test equipment

Anritsu MD1231A IP Network Analyser Or

Agilent J2127A Transmission Test Set

Or

EXFO-8510 Packet Blazer

Or

Smartbits 200 with Gigabit Ethernet Smart Card.

Or

DLI NIC GigE

5

A digital voltmeter capable of operating in the range 0-60v with an accuracy of + 0.5%.

6

A single mode optical power meter with a wide area sensor capable of operating in the range +10 to -50 dBm at 1300nm-1550nm, such as the Photodyne 2250XF. It should also have a suitable optical patch cord.


Topic 4 Page 82



7


The LCT should be a laptop PC with a Pentium/Celeron processor with a min. speed of 300 MHz, running the LCT application software. The PC’s operating system should be either Win 2000 or Win XP. Communications to the shelf is via the serial port, using the LCT cable. The PC’s serial port parameters will be automatically configured when the LCT is loaded. Software application releases are: Release 1.1 LCT & NE Software on CD-ROM code 03PHS00010AAG. Release 1.1 Rev 2A LCT & NE Software on CD-ROM code 03PHS00024AAF. Release 1.2 LCT & NE Software on CD-ROM code 03PHS00010ACR. Release 1.3 LCT & NE Software on CD-ROM code 03PHS00010ADJ.

8

Suitable quantity of optical test leads with LC connectors.

9

A quantity of 5dB and 10dB Diamond attenuators term inated with LC optical connectors. The Site Engineer will select the actual value, 10dB being the preferred value.

10

Suitable quantity of coaxial test leads, with type 1.0/2.3 coax connectors.

11

For 10/100M Fast Ethernet Trib/LTU test: lead terminated at the electrical LTU with 16 x RJ45 Ports:- 17 off CAT5 Standard LAN UTP two pair cross-over cable, any length

12

For Gigabit Ethernet Test: Analyser to Gig-E test cables ie 4 off optical leads, SC to LC optical connector conversion.

WARNING! All instruments must conform to the appropriate safety regulations, bear a valid calibration label and a valid electrical safety label if 250 volts mains driven.

2.1.5.1

LCT to OMS1664 Interface Cable The LCT communications connection on the OMS1664 is via a 9 way “D” Type connector.

Table 2-1: LCT to OMS1664 Interface Cable PC End (9 pin “D” Type female)

OMS1664 End DATA

2

DATA

3

3

DATA

2

-

RTS

7

-

CTS

8

5*

GND

5

Note: Pin 7 used when PC has a 25-pin serial port


Topic 4 Page 83



2.1.5.2


“CAT5” Two pair Cross-over UTP Fast Ethernet Test Cable Figure 2-1: EPL-100 Fast Ethernet LTU Interface:-

Eth Data In (A) Eth Data In (B) Eth Data Out (A) a.c. to 0v a.c. to 0v Eth Data Out (B) a.c. to 0v a.c. to 0v

Figure 2-2: Two pair Cross-over UTP Fast Ethernet Test Cable

RJ45 End “A” 1 2 3 4 5 6 7 8

2.1.6

RJ45 End “B”

nc nc

nc nc

nc nc

nc nc

1 2 3 4 5 6 7 8

87654321

RJ45 Plug En

Information Required For Commissioning The Customer/Network Planning Authority are responsible for providing the following information before commissioning can commence. 

Card complement and position for each NE.



The Ethernet MAC, IS and ES Addresses for the GATEWAY NE.



The Local NSAP Address for each NE.



Synchronisation and timing information for each NE (required for Subnetwork and Network tests).


Topic 4 Page 84






Comms configuration details including LAPD settings.



If available, fibre loss figures for the sub-network under test.



Alarm configurations if different from defaults.



Link Settings (if different from default)



ALS Policy


Topic 4 Page 85



2.2


OMS1664 Shelf Configuration & Rules

2.2.1

OMS1664 Standard Shelf Con figu ration Figure 2-3: OMS1664 Standard Shelf

4 # U T L M 2 2 T r o 1 L : U T L c i f f a r T LT U n-1

b i r T / 1 e n i L

Card n-21

3 # U T L M 2 2 T r o 2 L : U T L c i f f a r T LT U n-2

2 # U T L M 2 2 T r o U T L 1 b i r T LT U n-3



) 1 # M 2 ( 2 b i r T

) 2 # M 2 ( 3 b i r T

Card Card Card n-22 n-23 n-24

Card n-25

b i r T / 2 e n i L

1 b i r T




4 # U T L M 2 0 1 T r o U T L 7 b i r T LT U n-9

2 # U T L M 2 0 1 T r o U T L 9 b i r T

3 # U T L M 2 0 1 T r o U T L 8 b i r T LT U n-10

1 # U T L M 2 0 1 T r o U T L 0 1 b i r T

LT U LT U n-11 n-12

1 # U T L M 2 1 1 T r o U T L 1 1 b i r T

3 # U T L M 2 1 1 T r o 3 L : U T L c i f f a r T

2 # U T L M 2 1 1 T r o U T L 2 1 b i r T

LT U LT U n-13 n-14

LT U LT U n-15 n-16

) 3 # M 2 ( 4 b i r T

Card n-26

5 b i r T

Card n-27

A h c t i w S

Card n-28


6 b i r T

B h c t i w S

7 b i r T

b i r T

b i r T

b i r T

) 4 # M 2 ( 1 1 b i r T

Card n-29

Card n-30

Card n-31

Card n-32

Card n-33

Card n-34

Card n-35

8

9

0 1

x u A & s m r a l A

U T L c n y S & t n e m e g a n a M

LT U n-17

LT U n-18

U T L

) n o i t c e t o r P M 2 ( 2 1 b i r T

Power LTU A

PSU A n-19

Power LTU B PSU B n-20

E R U T U F b i r T / 3 e n i L

Card Card n-36 n-37

R O F

b i r T / 4 e n i L

Card n-38

x u A

A U C C

D E V R E S E R

Au x C C U A C C U B n-39 n-40 n-41

The above layout drawing shows the principle structure of the OMS1664 standard shelf. Although slots have been labelled as Line or Trib these are just highlighting a typical application. All slots are fully flexible and can be either Lines or Tribs. (up to STM-16). The Shelf’s Core cards are those shaded. The bottom row offers 21 slots for Line Cards, Tributary (Trib) Cards, TDM Switch, Auxiliary Unit (Aux), and Communications Control Unit (CCU). The top row contains the Line Terminating Units (LTUs) of the corresponding Trib Cards and the system LTUs (Power Supply, Clock, TMN access) corresponding to Aux and CCU units.


Topic 4 Page 86



2.2.1.1


OMS1664 Standard Shelf - Slot Allocation LINE/TRIB UNITS:-

Table 2-2: Standard Shelf Line/Trib Units Slot Allocation ALLOWABLE CARD TYPES SLOT

21

DESCRIPTION

Line 1 / Trib

Generic Card Type

Line 2 / Trib

6 x 34/45M

1

SDH Card

8 x STM-1

1

16 x STM-1/4 Flex SFP

1


1

2 x STM-1/4

N/A

1 x STM-16

N/A

16 x 10/100M Fast Ethernet

1

2 x 1000M Gigabit Ethernet

N/A

PDH Card

6 x 34/45M

2

SDH Card


2


2

8 x STM-1

2

2 x STM-1/4

N/A

1 x STM-16

N/A


2


N/A

PDH Card

6 x 34/45M

3

SDH Card


3


3

8 x STM-1

3

2 x STM-1/4

N/A

1 x STM-16

N/A


3


N/A

126 x 1.5/2M

1,2,3,4

32 x 1.5/2M

4

6 x 34/45M

4


4


4

8 x STM-1

4

DATA Card

23

Trib 1

DATA Card

24

Trib 2

For Card Type

PDH Card

DATA Card

22

LTU Slot

Variant Card Type

PDH Card

(or 2M#1)

SDH Card


Topic 4 Page 87




ALLOWABLE CARD TYPES SLOT

DESCRIPTION

Generic Card Type

Trib 3

N/A

1 x STM-16

N/A


4


N/A

126 x 1.5/2M

5,6,7,8

32 x 1.5/2M

5

6 x 34/45M

5


5


5

8 x STM-1

5

2 x STM-1/4

N/A

1 x STM-16

N/A


5


N/A

PDH Card

6 x 34/45M

6

SDH Card


6


6

8 x STM-1

6

2 x STM-1/4

N/A

1 x STM-16

N/A


6


N/A

PDH Card

6 x 34/45M

7

SDH Card


7


7

8 x STM-1

7

2 x STM-1/4

N/A

1 x STM-16

N/A


7


N/A

PDH Card

(or 2M#2)

SDH Card

DATA Card

26

Trib 4

DATA Card

27

Trib 5

For Card Type

2 x STM-1/4

DATA Card

25

LTU Slot

Variant Card Type

DATA Card

28

Switch A

Switch Card

128 x 128

N/A

29

Trib 6

PDH Card

6 x 34/45M

8

SDH Card


8


8


Topic 4 Page 88





DESCRIPTION

Generic Card Type

DATA Card

LTU Slot

Variant Card Type

For Card Type

8 x STM-1

8

2 x STM-1/4

N/A

1 x STM-16

N/A


8


N/A

30

Switch B

Switch Card

128 x 128

N/A

31

Trib 7

PDH Card

6 x 34/45M

9

SDH Card


9


9

8 x STM-1

9

2 x STM-1/4

N/A

1 x STM-16

N/A


9


N/A

PDH Card

6 x 34/45M

10

SDH Card


10


10

8 x STM-1

10

2 x STM-1/4

N/A

1 x STM-16

N/A


10


N/A

PDH Card

6 x 34/45M

11

SDH Card


11


11

8 x STM-1

11

2 x STM-1/4

N/A

1 x STM-16

N/A


11


N/A

126 x 1.5/2M

9,10,11,12

32 x 1.5/2M

12

6 x 34/45M

12


12

DATA Card

32

Trib 8

DATA Card

33

Trib 9

DATA Card

34

Trib 10

PDH Card

(or 2M#3)

SDH Card


Topic 4 Page 89





DESCRIPTION

Generic Card Type

Trib 11

8 x STM-1

12

2 x STM-1/4

N/A

1 x STM-16

N/A


12


N/A

126 x 1.5/2M

13,14,15,16

32 x 1.5/2M

13

6 x 34/45M

13


13


13

8 x STM-1

13

2 x STM-1/4

N/A

1 x STM-16

N/A


13


N/A

126 x 1.5/2M Protection

N/A

6 x 34/45M

14


14


14

8 x STM-1

14

2 x STM-1/4

N/A

1 x STM-16

N/A


14


N/A

PDH Card

6 x 34/45M

15

SDH Card

8 x STM-1

15


15


15

2 x STM-1/4

N/A

1 x STM-16

N/A


15


N/A

6 x 34/45M

16

PDH Card

SDH Card

DATA Card

Trib 12

PDH Card

(or 2M Prot) SDH Card

DATA Card

37

Line 3 / Trib

DATA Card

38

Line 4 / Trib

For Card Type 12

(or 2M#4)

36

LTU Slot


DATA Card

35

Variant Card Type

PDH Card


Topic 4 Page 90





DESCRIPTION

Generic Card Type SDH Card

DATA Card

39

AUX

40

CCUA

AUX/EOW Card

Variant Card Type

LTU Slot For Card Type

8 x STM-1

16


16


16

2 x STM-1/4

N/A

1 x STM-16

N/A


16


N/A

All

17

All

N/A

CCU MC CCU Comms 41

Reserved for future use



Topic 4 Page 91


N/A




LTU UNITS:-

Table 2-3: Standard Shelf LTU Units Slot Allocation SLOT

ALLOWABLE CARD TYPES

LTU DESCRIPTION

Generic Card Type

Variant Card Type

1-16

1.5M LTU 32 x Bal

1.5M

All

1-16

2M LTU 32 x Bal

2M

All

2M LTU 32 x Unbal 1-16

34/45M LTU 6 x UnBal

34/45M

All

1-16

STM-1 LTU 8 x SFP


All

8 x STM-1/4 Flex SFP 1-16

STM-1 LTU 2 x Opt Module

8 x STM-1

All

1-16

Protection LTU (Type) 1

6 x 34/45M

All

8 x STM-1

All


All


All

10/100M Electrical (RJ45)

All

10/100M Optical (SFP, LC)

All

1-16

16 x 10/100M Fast Ethernet LTU

17

Alarms & Aux LTU

AUX/EOW

All

18

Management & Sync LTU

Mgt/Sync LTU

All

19

Power LTU

Power A

All

20

Power LTU

Power B

All


Topic 4 Page 92



2.2.1.2


OMS1664 Standard Shelf Typical Configurations Figure 2-4: STM-16 Cross Connect: Up to 8 x STM-16 Ports

Au & s m r a l A


LTU n-17

LTU n-18

U T L

LTU n-1

t r o P 1 1 # d r a C b i r T Card n-21

LTU n-2

t r o P 1 2 # d r a C b i r T

LTU n-3


LTU LTU n-4 n-5



LTU LTU n-6 n-7



Card Card Card Card Card Card n-22 n-23 n-24 n-25 n-26 n-27

LTU LTU n-8 n-9

A h c t i w S

LTU n-10


Card Card n-28 n-29

LTU n-11

B h c t i w S

Card n-30

LTU LTU LTU n-12 n-13 n-14

t r o P 1 9 # d r a C b i r T Card n-31


t r o P 1 1 1 # d r a C Tri b

LTU LTU n-15 n-16

t r o P 1 2 1 # d r a C b i r T

t r o P 1 3 1 # d r a C b i r T

Card Card Card Card n-32 n-33 n-34 n-35

t r o P 1 4 1 # d r a C b i r T

t r o P 1 5 1 # d r a C b i r T

Power LTU A PSU A n-19


t r o P 1 6 1 # d r a C b i r T

x u A

A U C C

E R U T U F R O F D E V R E S E R

Card Card Card Aux CCUA CCUB n-36 n-37 n-38 n-39 n-40 n-41

The STM-16 Line/Trib Cards can be inserted into any of the 16 slots at the bottom row of the standard shelf. More than eight slots are available. But only 8 off (max) cards can be inserted in any of the 16 slots. The above drawing shows one example where Trib positions 21-24 & 35-38 are used, the limiting factor being the port number. i.e. The capacity of 128 x 128 STM-1 TDM Switch.


Topic 4 Page 93




Figure 2-5: STM-16 Cross Connect: Up to 128 x STM-1 Ports

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o U P T 4 L Au

1 # U T L

2 # U T L

3 # U T L

4 # U T L

5 # U T L

6 # U T L

7 # U T L

8 # U T L

9 # U T L

0 1 # U T L

1 1 # U T L

2 1 # U T L

3 1 # U T L

4 1 # U T L

5 1 # U T L

6 & 1 s # m U r a T l L A

LTU n-1

s t r o P 4 1 # d r a C b i r T Card n-21

LTU LTU n-2 n-3

s t r o P 4 2 # d r a C b i r T

s t r o P 4 Ca rd #3 b i r T

LTU LTU n-4 n-5




LTU LTU n-6 n-7



LTU LTU n-8 n-9

A h c t i w S

Card Card Card Card n-25 n-26 n-27 n-28

LTU n-10


LTU n-11

B h c t i w S

Card Card n-29 n-30



s t r o P 4 0 1 # d r a C b i r T

s t r o P 4 1 1 # d r a C b i r T

Card Card n-32 n-33

LTU LTU n-15 n-16

s t r o P 4 2 1 # d r a C b i r T

s t r o P 4 3 1 # d r a C b i r T

Card Card n-34 n-35



Power LTU B

LTU LTU n-17 n-18

s t r o P 4 4 1 # d r a C b i r T

s t r o P 4 5 1 # d r a C b i r T

PSU B n-20

s t r o P 4 6 1 # d r a C b i r T

x u A

A U C C


Card Card Card Aux CCUA CCUB n-36 n-37 n-38 n-39 n-40 n-41

The STM-1 Trib and LTU Cards contain hot plug-in modules or SFPs with two optical (LC/PC connectors) or electrical interfaces each. Mixed versions with any optical and electrical interfaces are possible. One LTU Card is available for each Trib Card using “hot plug-in” modules to extend the port capacity from 4 ports to 8 ports and for protection purposes. Ie Trib#1 + LTU#1 = 8 Ports. Or, an 8 port LTU Card is available for each “Flexible” STM-1 Trib Card using “SFP” modules to extend the port capacity from 8 ports to 16 ports and for protection purposes. Ie Trib#1 + LTU#1 = 16 Ports. The above drawing shows the corresponding LTUs in the top row of the standard shelf. The STM-1 Trib Cards can be inserted in any of the 16 slots at the bottom row of the standard shelf. There exists only one type of BASIC Trib. and BASIC LTU Cards (cards without modules). The different hot plug-in modules (different optical STM-1 modules and one electrical module) can be inserted in both cards. The limiting factor for the number of STM-1 ports in the standard shelf, is both the number of available slots and the capacity of the TDM Switch. (ie OMS1664 STM-16: 16 slots with 8 STM-1 ports each = 128 STM-1 ports.)


Topic 4 Page 94




1:1 MSP STM-1 Trib Protection The failure of one of n working STM-1 Trib. Cards is protected by one protection STM1 Trib. Card & Protection LTU. The STM-1 Protection Trib card is inserted to the right hand side of the Worker STM-1 Trib Cards, along with it’s associated Protection LTU. Note: In the case of failure of one working STM-1 Trib Card, the Protection Trib Card takes over the signal processing of this former working Card. The Protection LTU routes the signals of the Protection Trib. Card to the LTU Card corresponding to the defective Working Trib Card which now is switched off.

Figure 2-6: STM-16 Cross Connect: Up to 504 x 2Mbit/s Ports

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

4 1 # U T L

3 1 # U T L

2 1 # U T L

1 1 # U T L

1 2 # U T L

2 2 # U T L

3 2 # U T L

4 2 # U T L

4 3 # U T L

3 3 # U T L

2 3 # U T L

1 3 # U T L

1 4 # U T L

2 4 # U T L

3 4 # U T L

LTU n-1

LTU n-2

LTU n-3

LTU LTU n-4 n-5

s t r o P 6 2 1 1 # d r a C b i r T Card n-21


LTU n-6

LTU n-7

s t r o P 6 2 1 5 2 # d r a C b i r T Card Card Card n-25 n-26 n-27


A h c t i w S

Card n-28

LTU n-11

LTU n-12

Card n-30

LTU n-15

s t r o P 6 2 1 3 # d r a C b i r T

B h c t i w S

Card n-29

LTU LTU n-13 n-14

s t r o P U 1 T 3 L Au 4 - & 4 s # m U r a T l L A LTU n-16

s t r o P 6 2 1 4 # d r a C b i r T


LTU LTU n-17 n-18

n o i t c e t o r P d r a C b i r T



x u A

A U C C


Card Card Card Card Card Card Card Card Aux CCUA CCUB n-31 n-32 n-33 n-34 n-35 n-36 n-37 n-38 n-39 n-40 n-41

The 2Mbit/s Trib Cards can only be inserted in slots 24, 25, 34, or 35 of the bottom row. Whilst the Trib Protection card is inserted in slot 36. Up to 4 LTUs can be allocated to each Trib Card. The above drawing shows the Trib. Card vs. LTU positions. The 126 x 2Mbit/s signals are distributed to the four LTUs according to the following rule, (refer to the notation of the LTUs in above drawing):-


Topic 4 Page 95




Table 2-4: LTU Port Numbers LTU 1

Associated 2Mbit/s Card Trib 2

Port Numbers 96-126 + monitor

2

64-95

3

33-63 + monitor

4

1-32

5

Trib 3

1-32

6

33-63 + monitor

7

64-95

8

96-126 + monitor

9

Trib 10

64-95

11

33-63 + monitor

12

1-32 Trib 11

33-63 + monitor

15

64-95

16

96-126 + monitor

Copyright- Refer to title page

1-32

14

Marconi

96-126 + monitor

10

13

Topic 4 Page 96




Figure 2-7: STM-16 Add-Drop Multiplexer: Up to 128 x STM-1 Ports

s t r o P 4

s t r o P 4

3 # U T L LTU n-1

1 # d r a C e n i L

LTU n-2

2 # d r a C e n i L

Card Card n-21 n-22

4 # U T L

LTU n-3

5 # U T L

LTU LTU n-4 n-5


s t r o P 4



Card Card n-24 n-25

s t r o P 4 6 # U T L

s t r o P 4 7 # U T L

LTU LTU n-6 n-7



s t r o P 4 8 # U T L

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

s t r o P 4

U T L

9 # U T L

0 1 # U T L

1 1 # U T L

2 1 # U T L

3 1 # U T L

4 1 # U T L

Au & s m r a l A


LTU n-17

LTU n-18


A h c t i w S



LTU n-11

B h c t i w S Card n-30

LTU n-12


LTU LTU n-13 n-14

s t r o P 4 0 1 # d r a C b i r T

s t r o P 4 1 1 # d r a C b i r T

Card Card n-32 n-33

LTU LTU n-15 n-16

s t r o P 4 2 1 # d r a C b i r T

s t r o P 4 3 1 # d r a C b i r T

s t r o P 4 4 1 # d r a C Tri b

1 # d r a C e n i L



1 # d r a C e n i L

Card Card Card Card Card n-34 n-35 n-36 n-37 n-38

x u A

A U C C


Aux CCUA CCUB n-39 n-40 n-41

The above shelf drawing shows a configuration with STM-1 Trib/LTU cards & four Line cards. Useable STM-1 Ports with Different Line Functionality:-

Table 2-5: STM-1 Ports with Different Line Functionality SMA1664 STM-16 Cards

Number of Line Slots Required Ports

Available Slots (Trib & LTU)

N – Number of STM-1 Ports

STM-16

0

0

16

128

1

1

15

112

2

2

14

96

3

3

13

80

4

4

12

64

Limiting factors for Port number N:

1)2) 2)

2) 2) 2)

1)

Available slots for Trib and LTU cards

2)

Capacity of 128 x 128 STM-1 TDM S witch

Note: In case of STM-16 the number of usable STM-1 ports is higher, because STM16 protection doesn’t allocate any switch capacity .


Topic 4 Page 97




Figure 2-8: STM-16 Add-Drop Multiplexer: Up to 504 x 2Mbit/s Ports

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

4 1 # U T L

3 1 # U T L

2 1 # U T L

1 1 # U T L

1 2 # U T L

2 2 # U T L

3 2 # U T L

4 2 # U T L

4 3 # U T L

3 3 # U T L

2 3 # U T L

1 3 # U T L

1 4 # U T L

2 4 # U T L

3 4 # U T L

LTU n-1

1 # d r a C e n i L Card n-21

LTU n-2

2 # d r a C e n i L

LTU n-3

LTU LTU n-4 n-5

s t r o P 6 2 1 1 # d r a C b i r T


LTU n-6

LTU n-7

s t r o P 6 2 1 5 2 # d r a C b i r T


A h c t i w S


Card n-28

LTU n-11

LTU n-12

LTU LTU n-13 n-14

s t r o P 6 2 1 3 # d r a C b i r T

B h c t i w S

Card n-29

Card n-30

LTU n-15

s t r o P U 1 T 3 L Au 4 - & 4 s # m U r a T l L A LTU n-16

s t r o P 6 2 1 4 # d r a C b i r T


LTU LTU n-17 n-18

n o i t c e t o r P d r a C b i r T

3 # d r a C e n i L



4 # d r a C e n i L

x u A

A U C C



With line functionality, the number of available 2Mbits Trib Ports of OMS1664 is not reduced. The above configuration shows the example of an OMS1664 standard shelf with 4 x Line Cards, 4 x Tribs. and 16 x LTU Cards. The 2Mbit/s Trib. Cards can only be inserted in slots ,24,25, 34,35 of the bottom row. Whilst the Trib Protection card is inserted in slot 16. Up to 4 LTUs can be allocated to each Trib. Card. The above drawing shows the Trib. Card vs. LTU positions. The 126 x 2Mbit/s signals are distributed to the four LTUs according to the following rule, (refer to the notation of the LTUs in above drawing):-

Table 2-6: LTU Port Numbers LTU 1

Associated 2Mbit/s Card Trib 2


2

64-95

3

33-63 + monitor

4

1-32

5

Trib 3

1-32

6


33-63 + monitor

Topic 4 Page 98



Installation and Commissioning Commissioning LTU

Associated 2Mbit/s Card

Port Numbers

7

64-95

8

96-126 + monitor

9

Trib 10

96-126 + monitor

10

64-95

11

33-63 + monitor

12

1-32

13

Trib 11

33-63 + monitor

15

64-95

16

96-126 + monitor

Copyright- Refer to title page

1-32

14

Marconi

Topic 4 Page 99



2.2.2


OMS1634 Shelf Configuration The figure below shows the shelf layout of the OMS1634, which uses the “Standard” shelf with the STM4/16 Core card in the Switch slots.

4 # U T L M 2 2 T r o 1 L : U T L c i f f a r T LTU n-1

b i r T / 1 e n i L Card n-21

3 # U T L M 2 2 T r o 2 L : U T L c i f f a r T

2 # U T L M 2 2 T r o U T L 1 b i r T

LTU LTU n-2 n-3

b i r T / 2 e n i L

1 # U T L M 2 2 T r o U T L 2 b i r T LTU n-4

) 1 # M 2 ( 1 2 b i b i r r T T


) 2 # M 2 ( 3 b i r T



5 4 b b i i r r T T

4 # U T L M 2 3 T r o U T L 6 b i r T

4 # U T L M 2 0 1 T r o U T L 7 b i r T

LTU LTU n-8 n-9

A E R O C / H C T I W S

Card Card Card Card Card Card Card n-22 n-23 n-24 n-25 n-26 n-27 n-28

3 # U T L M 2 0 1 T r o U T L 8 b i r T LTU n-10

2 # U T L M 2 0 1 T r o U T L 9 b i r T

1 # U T L M 2 0 1 T r o U T L 0 1 b i r T

LTU LTU n-11 n-12

6 b i r T

B E R O C / H C 7 T I b W i r S T

Card n-29

Card Card n-30 n-31

1 # U T L M 2 1 1 T r o U T L 1 1 b i r T

2 # U T L M 2 1 1 T r o U T L 2 1 b i r T

LTU LTU n-13 n-14

8 b i r T

9 b i r T



LTU LTU n-15 n-16

U T L c n y U S T L & t n Au e & m e s g a m r n a a l A M

Power LTU A

LTU LTU n-17 n-18

PSU B n-20

) n o i t c e t ) ) o r 3 4 # # P M M M 2 2 2 ( ( ( 0 1 2 1 1 1 b b b i i r i r r T T T

b i r T / 3 e n i L

Card Card Card Card Card Card n-32 n-33 n-34 n-35 n-36 n-37

PSU A n-19

Power LTU B

b i r T / 4 e x n u i L A

A U C C


Card Aux CCUA CCUB n-38 n-39 n-40 n-41

The Shelf’s “core” cards are those shaded. The bottom row offers slots for Tributary (Trib) Cards, Core/TDM Switch, Auxiliary Unit (Aux), and Communications Control Unit (CCU). The top row contains the Line Terminating Units (LTUs) of the corresponding Trib Cards and the system LTUs (Power Supply, Clock, TMN access) corresponding to Aux and CCU units. The TDM bandwidth supported on the Core card is limited by it’s switch functionality. In the case of STM 4/16 Core card, the limitation is 48 x STM-1. This is distributed as 8 x STM-1 to 4 slots and 4 x STM-1 to 4 slots. Lines 1,2,3,4 and Tribs 4,6,7,9 have no TDM bandwidth allocation, & are NOT supported.


Topic 4 Page 100



2.2.2.1


OMS1634 Typical Shelf Configuration

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 1 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

s t r o P 2 3

s t r o P 1 3

s t r o P 2 3

4 1 # U T L

3 1 # U T L

2 1 # U T L

1 1 # U T L

1 2 # U T L

2 2 # U T L

3 2 # U T L

4 2 # U T L

4 3 # U T L

3 3 # U T L

2 3 # U T L

1 3 # U T L

1 4 # U T L

2 4 # U T L

3 4 # U T L

LTU n-1

LTU n-2

LTU n-3

LTU LTU n-4 n-5

s t r o P 6 2 1 s / b M 2 2 b i r T Card n-21


LTU n-6

LTU n-7

s t r o P 6 2 1 s / b M 2 3 b i r T


A E R O C / H C T I W S


Card n-28

LTU n-11

LTU n-12

LTU LTU n-13 n-14

s t r o P 6 2 1 s / b M 2 0 1 b i r T

B E R O C / H C T I W S

Card n-29

Card n-30

LTU n-15

s t r o P U 1 T 3 L Au 4 - & 4 s # m U r a T l L A



Power LTU B


s t r o P 6 2 1 s / b M 2 1 1 b i r T

n o i t c e t o r P s / b M 2 2 1 b i r T

PSU B n-20

x u A

A U C C



The above configuration shows the example of an OMS1634 shelf with 2 x Core Cards which include Line functionality, & 4 x 2Mbit/s Tribs. with 16 x LTU Cards. The 2 Mbit/s Trib. Cards can only be inserted in slots 4, 5, 14, or 15, of the bottom row. Whilst the Trib. Protection card is inserted in slot 16. Up to 4 LTUs can be allocated to each Trib. Card. The above drawing shows the Trib. Card vs. LTU positions. The 504 x 2 Mbit/s signals are distributed to the LTUs according to the following table:-

LTU


1


2

64-95 Trib 2

3

33-63 + monitor

4

1-32

5

1-32

6

33-63 + monitor

Trib 3 7

64-95

8

96-126 + monitor


Topic 4 Page 101



Installation and Commissioning Commissioning LTU


9


10

64-95 Trib 10

11

33-63 + monitor

12

1-32

13

1-32

14

33-63 + monitor

Trib 11

2.2.2.2

15

64-95

16

96-126 + monitor

OMS1634 Shelf Slot Allocations

LINE/TRIB UNITS:ALLOWABLE CARD TYPES SLOT

DESCRIPTION

Generic Card Type

LTU Slot

Variant Card Type

For Card Type

21

Line 1 / Trib

Not Supported

N/A

22

Line 2 / Trib

Not Supported

N/A

23

Trib 1

PDH Card

6 x 34/45M

3

SDH Card


3

8 x STM-1

3

2 x STM-1/4

N/A


3


N/A

126 x 1.5/2M

1,2,3,4

32 x 1.5/2M

4

6 x 34/45M

4


4

8 x STM-1

4

2 x STM-1/4

N/A


4


N/A

126 x 1.5/2M

5,6,7,8

32 x 1.5/2M

5

6 x 34/45M

5


5

8 x STM-1

5

2 x STM-1/4

N/A

DATA Card

24

Trib 2

PDH Card

(or 2M#1)

SDH Card

DATA Card

25

Trib 3

PDH Card

(or 2M#2)

SDH Card


Topic 4 Page 102





DESCRIPTION

Generic Card Type DATA Card

LTU Slot

Variant Card Type

For Card Type


5


N/A

26

Trib 4

Not Supported

N/A

27

Trib 5

PDH Card

6 x 34/45M

7

SDH Card


7

8 x STM-1

7

2 x STM-1/4

N/A


7


N/A

64 x 64

N/A

DATA Card

28

Switch A

CORE Card

29

Trib 6

Not Supported

30

Switch B

CORE Card

31

Trib 7

Not Supported

32

Trib 8

PDH Card

6 x 34/45M

10

SDH Card


10

8 x STM-1

10

2 x STM-1/4

N/A


10


N/A

N/A 64 x 64

N/A

DATA Card

33

Trib 9

Not Supported

34

Trib 10

PDH Card

N/A

(or 2M#3)

SDH Card

DATA Card

35

Trib 11

PDH Card

(or 2M#4)

SDH Card


N/A

Topic 4 Page 103

126 x 1.5/2M

9,10,11,12

32 x 1.5/2M

12

6 x 34/45M

12


12

8 x STM-1

12

2 x STM-1/4

N/A


12


N/A

126 x 1.5/2M

13,14,15,16

32 x 1.5/2M

13

6 x 34/45M

13


13

8 x STM-1

13

2 x STM-1/4

N/A





DESCRIPTION

Generic Card Type DATA Card

36

Trib 12

PDH Card

(or 2M Prot) SDH Card

DATA Card

Variant Card Type

LTU Slot For Card Type


13


N/A

126 x 1.5/2M Protection

N/A

6 x 34/45M

14


14

8 x STM-1

14

2 x STM-1/4

N/A


14


N/A

37

Line 3 / Trib

Not Supported

N/A

38

Line 4 / Trib

Not Supported

N/A

39

AUX

AUX/EOW Card

40

CCUA

All

17

All

N/A

CCU MC CCU Comms 41




Topic 4 Page 104


N/A




LTU UNITS:SLOT


LTU DESCRIPTION

Generic Card Type

Variant Card Type

1-16

1.5M LTU 32 x Bal

1.5M

All

1-16

2M LTU 32 x Bal

2M

All



34/45M

All

1-16

STM-1 LTU 8 x SFP


All

1-16

STM-1 LTU 2 x Opt Module

8 x STM-1

All

1-16


6 x 34/45M

All

8 x STM-1

All


All


All


All

1-16


17

Alarms & Aux LTU

AUX/EOW

All

18


Mgt/Sync LTU

All

19

Power LTU

Power A

All

20

Power LTU

Power B

All


Topic 4 Page 105



2.3


OMS1654 (Compact) Typical Shelf Configurations

2.3.1.1

OMS1654 -STM-16 ADMUX: Up to 126 x 2Mbit/s Ports Figure 2-9: OMS1634 (Compact) 2Mb/s Admux Shelf

d r a 1 C x U e n u C i A C L

2 e n i L

n-1

n-4

n-2

n-3

A h c t i w S

n-5

B h 3 4 1 2 c t i e e b b n i n i w i r i r S L L T T

) ) ) s t s s t r r t r o o o P P P ) s 1 2 1 n t o r 3 3 3 i t o ( ( ( c P U U U e t 6 T T T o 2 L L L r P 1 ( 4 3 2 # # # M M 2 2 M M M - - 2 - 2 - 2 3 4 4 4 4 b b b b b i r i r i r i r i r T T T T T

) s t r o P 2 3 ( U U T T L L 1 # Au M & 2 - s 4 m r b i a r l T A


n-6

n-11

n-16

n-18

n-7

n-8

n-9

n-10

n-12 n-13

n-14

n-15

n-17

A U T L r e w o P n-19

B U T L r e w o P n-20

Fan Tray

Up to 4 LTUs can be allocated to the 2M Tributary Card, see above drawing for LTU positions. The 126 x 2 Mbit/s signals are distributed to the four LTUs according to the following table:-

LTU


1 2 3


64-95

Trib 4

33-63 + monitor

4

1-32

2M Card Protection: A maximum of 126 x 2M can be supported on the OMS1654, us ing Trib 4 (slot 12). 2M card protection is supported by using 2M trib in Trib 3 (slot 11).


Topic 4 Page 106



2.3.1.2


OMS1654 - STM-16 ADMUX: Up to 32 x STM-1 Ports Figure 2-10: OMS1654 (Compact) STM-1 Admux shelf

d r a 1 2 C x U e e n i n u C i A C L L

n-1

n-2

n-3

n-4

A h c t i w S

n-5

) s t r o P 8 ( 1 -

B h 3 4 c t i e e n i n w i S L L

) ) s t s t r r o o P P 8 ( 8 ( 1 - 1 M M T T S S 1 2 b i b i r r T T

M M U T T T S S L 3 4 1 b i b b i r r i r T T T

U T L 2 b i r T

U T L 3 b i r T

U Au T & L s 4 m b r i a r l T A


n-6

n-9

n-11

n-14

n-15

n-16 n-17

n-18

n-7

n-8

n-10

) s t r o P 8 ( 1 -

n-12 n-13

U T L



Fan Tray

The STM-1 Trib and LTU Cards contain hot plug-in modules or SFPs with two optical (LC/PC connectors) or electrical interfaces each. Mixed versions with any optical and electrical interfaces are possible. One LTU Card is available for each Trib Card using “hot plug-in” modules to extend the port capacity from 4 ports to 8 ports and for protection purposes. Ie Trib#1 + LTU#1 = 8 Ports. Or, an 8 port LTU Card is available for each “Flexible” STM-1 Trib Card using “SFP” modules to extend the port capacity from 8 ports to 16 ports and for protection purposes. Ie Trib#1 + LTU#1 = 16 Ports. There is one type of BASIC Trib. and BASIC LTU Cards (cards without modules). The different hot plug-in modules (different optical STM-1 modules and one electrical module) can be inserted in either cards. Non-PDH Trib Protection: All 4 Tribs have an associated LTU. Flexible 1:N can be supported. Protection options are: One group of 1:3 or 1:2, Two groups of 1:1. Data Card Protection:Unit protection for the 2x1000M (EPL-1000) Gigabit Ethernet & 16x10/100M (EPL100) Fast Ethernet card is NOT supported.


Topic 4 Page 107



2.3.1.3


OMS1654 Shelf Slot Allocation Table 2-7: OMS1654 Shelf Slot Allocation

SLOT

DESCRIPTION

ALLOWABLE CARD TYPES Generic Card Type

Variant Card Type

1

AUX

AUX/EOW Card

All

2

CCU

CCU MC

All

CCU Comms

All

SDH Card


3

Line 1

8 x STM-1/4 Flex SFP 8 x STM-1 4

Line 2

2 x STM-1/4 1 x STM-16

5

Switch A

6

Switch B

7

Line 3

DATA Card


Switch Card

128 x 128

SDH Card

16 x STM-1/4 Flex SFP 8 x STM-1/4 Flex SFP 8 x STM-1

8

Line 4

2 x STM-1/4 1 x STM-16

9

Trib 1

DATA Card


PDH Card

6 x 34/45M

SDH Card

16 x STM-1/4 Flex SFP 8 x STM-1/4 Flex SFP 8 x STM-1

10

Trib 2

2 x STM-1/4 1 x STM-16 DATA Card

16 x 10/100M Fast Ethernet 2 x 1000M Gigabit Ethernet

11

Trib 3 (2M Prot for T4)

PDH Card

126 x 1.5/2M 6 x 34/45M

SDH Card

16 x STM-1/4 Flex SFP 8 x STM-1/4 Flex SFP 8 x STM-1 2 x STM-1/4 1 x STM-16

DATA Card


12

Trib 4


PDH Card

Topic 4 Page 108

126 x 1.5/2M



SLOT



DESCRIPTION

Generic Card Type

Variant Card Type 32 x 1.5/2M 6 x 34/45M

SDH Card

16 x STM-1/4 Flex SFP 8 x STM-1/4 Flex SFP 8 x STM-1 2 x STM-1/4 1 x STM-16

DATA Card


LTU SLOT


LTU DESCRIPTION

Generic Card Type

Variant Card Type

13-16

1.5M LTU 32 x Bal

1.5M

All

13-16

2M LTU 32 x Bal

2M

All



34/45M

All

13-16

STM-1 LTU 8 x SFP


All

8 x STM-1/4 Flex SFP 13-16

STM-1 LTU 4 x Opt

8 x STM-1

All

14-16


6 x 34/45M

All

8 x STM-1

All


All


All


All


All

13-16


17

Alarms & Aux LTU

Alarm/Aux LTU

All

18


Mgt/Sync LTU

All

19

Power LTU

Power A

All

20

Power LTU

Power B

All


Topic 4 Page 109



2.4


OMS1644 Typical Shelf Configuration The TDM bandwidth supported on the Core card is limited by it’s switch functionality. In the case of STM 4/16 Core card, the limitation is 48 x STM-1. This is distributed as 8 x STM-1 to 6 slots. Note: Lines 1 & 2 have no TDM bandwidth allocation, & are NOT supported.

2.4.1

OMS1644 STM-16 ADMUX: Up to 126 x 2Mbit/s Ports

d r a 1 2 C x U e e n i n u C i A C L L

n-1

n-2

n-3

n-4

A e r o C / h c t i w S

n-5

B e r o C / h 3 4 1 2 c t i e e b b n i n i w i r i r S L L T T

) ) ) ) s t s s t s t r r t r r U o o o o T ) P P P P L s 1 2 1 2 n t c r o 3 3 3 3 i n t o ( ( ( ( y c P U U U U U S e t T 6 T T T T o L L L L L & r 2 t P 1 ( 4 3 2 1 n # # # # Au e M M 2 2 M M M M & m e - - 2 - 2 - 2 - 2 - s g 3 4 4 4 4 4 m a n b i b b i b b i b r i a a r r i r r i r r l T T T T T T A M

n-6

n-11

n-7

n-8

n-9

n-10

n-12 n-13

n-14

n-15

n-16

n-17



n-18

Fan Tray

Up to 4 LTUs can be allocated to the 2M Tributary Card, see above drawing for LTU positions. The 126 x 2 Mbit/s signals are distributed to the four LTUs according to the following table:LTU


1 2 3


64-95

Trib 4

33-63 + monitor

4

1-32

2M Card Protection: A maximum of 126 x 2M can be supported on the OMS1644, us ing Trib 4 (slot 12). 2M card protection is supported by using 2M trib in Trib 3 (slot 11).


Topic 4 Page 110



2.4.1.1


OMS1644 Shelf Slot Allocation

SLOT

DESCRIPTION

ALLOWABLE CARD TYPES Generic Card Type Variant Card Type

1

AUX

AUX/EOW Card

All

2

CCU

CCU MC

All

CCU Comms

All

3

Line 1

Not Supported

N/A

4

Line 2

Not Supported

N/A

5

Switch A CORE Card STM-4/16

Switch 64 x 64

SDH Card


6

Switch B

7

Line 3

8

Line 4

8 x STM-1 2 x STM-1/4

9

Trib 1

10

Trib 2

DATA Card


PDH Card

6 x 34/45M

SDH Card

8 x STM-1/4 Flex SFP 8 x STM-1 2 x STM-1/4

DATA Card


11

Trib 3 (2M Prot for T4)

PDH Card

126 x 1.5/2M 6 x 34/45M

SDH Card



Topic 4 Page 111



SLOT

DESCRIPTION

Installation and Commissioning Commissioning ALLOWABLE CARD TYPES Generic Card Type Variant Card Type DATA Card


12

Trib 4

PDH Card

126 x 1.5/2M 32 x 1.5/2M 6 x 34/45M

SDH Card


DATA Card



Topic 4 Page 112



LTU SLOT



LTU DESCRIPTION

Generic Card Type

Variant Card Type

13-16

1.5M LTU 32 x Bal

1.5M

All

13-16

2M LTU 32 x Bal

2M

All



34/45M

All

13-16

STM-1 LTU 8 x SFP


All

13-16

STM-1 LTU 4 x Opt

8 x STM-1

All

14-16


6 x 34/45M

All

8 x STM-1

All


All


All


All


All

13-16


17

Alarms & Aux LTU

Alarm/Aux LTU

All

18


Mgt/Sync LTU

All

19

Power LTU

Power A

All

20

Power LTU

Power B

All

2.5

Preliminary Checks WARNING! If specific authority is required power is not to be applied until instructed

2.5.1

Inspection

2.5.1.1

Visual Inspection Visually inspect all units, both working and spare, for obvious evidence of mishandling during transportation or installation. Do not remove unit lids or covers. Visually inspect the backplane connector pins, to ensure none are bent or broken.

2.5.1.2

Build Level Check Prior to any work being undertaken all equipment is to be checked to ensure it is at the correct build level as agreed between the customer and the appropriate Marconi communications business unit.


Topic 4 Page 113




2.5.2

AL S Lin k Settings

2.5.3

Summary of all Card/Port ALS Links (inc. Default Settings) Below is a summary of all the ALS card and port control link options including the default settings that shall be adopted on the Slide in Units. These shall however be tailored to suit each customer during the installation and commissioning phase. In order to reduce implementation times the default settings shall be achieved by not requiring a link to be fitted.

2.5.3.1

Card ALS Control Link The purpose of having a Card ALS Control Link is to ensure that ALS operation cannot easily be disabled if an operator deems it an essential part of their safety philosophy. There is one Card ALS Control Link per card, any change to the setting necessitates removing the card from the subrack. The two possible link settings are:-

2.5.3.2

Not Fitted

Hardware enabled

(ALS always active)

Fitted

NM/LCT configured

(ALS enabled/disabled via MN/LCT)

ALS Automatic Laser Restarts Control Link The purpose of having an ALS Auto Restarts Control Link is to ensure that auto restart operation cannot easily be enabled if an operator deems they should be suppressed as part of their safety philosophy. There is one ALS Auto Restarts Control Link per card, any change to the setting necessitates removing the card from the subrack. The two possible link settings are:-

2.5.3.3

Not Fitted

Automatic laser restarts enabled (default)

Fitted

Automatic laser restarts disabled

ALS Remote Manual Restarts Control Link The purpose of having an ALS Remote Manual Restarts Control Link is to ensure that manual restarts cannot be initiated remotely if an operator deems they should be suppressed as part of their safety philosophy. There is one ALS Remote Manual Restarts Control Link per card, any change to the setting necessitates removing the card from the subrack. The two possible link settings are:-

2.5.3.4

Not Fitted

Remote manual laser restarts disabled (default)

Fitted

Remote manual laser restarts enabled

ALS Single-Fibre Working Mode Control Link The purpose of having an ALS Single-Fibre Working Control Link is to introduce an additional criterion by which ALS can infer fibre-discontinuity. The additional criterion is based on section trace identifier value, and becomes active if the accepted received identifier matches the transmitted identifier. The reasoning behind this is that the receiver can align to the signal reflected from a broken fibre-end, and thus dLOS will not be detected and therefore ALS will not operate. If the link is set for single-fibre


Topic 4 Page 114




working, the operator MUST configure different transmitted section trace identifier values at both ends of the section. Failure to do so will result in permanent shutdown and consequent loss of traffic. There is one ALS Single-Fibre Working Control Link per port, any change to the setting necessitates removing the card from the subrack. The two possible link settings are:Not Fitted

Dual-Fibre working (uni-directional)

Fitted

Single-Fibre working (bi-directional)

2.5.4

Summary of all NM/LCT ALS Control options

2.5.4.1

NE ALS Preference The purpose of having an NE ALS Preference is so that the NE can assist the operator in ensuring that ALS is active (or not) consistently across all cards in the NE. This is configured by the operator via LCT when the NE is commissioned. It cannot be changed thereafter without de-commissioning the NE. The user configurable options are:Hardw

ALS always active

are Enabled NM/LCT Configured

ALS active/inactive via NM/LCT

No default is offered on the commissioning screen (the field is blank), forcing the operator to select an option from the drop-down list before commissioning can be completed.

2.5.4.2

Card ALS Policy The card firmware compares the setting of the Card ALS Control Link against the Card ALS Policy. If they do not match, a policy mismatch alarm is raised to warn the operator of the conflict so that the link setting can be changed, if appropriate, before the card is put into service. The purpose of having a Card ALS Policy is to allow one or more cards to operate contrary to the NE ALS Preference without raising a policy mismatch alarm. When a card is added to the subrack logical configuration, its default Card ALS Policy will be the same as the NE ALS Preference which was configured when the NE was commissioned. The Card ALS Policy can be changed by the operator via NM/LCT at any time. The user configurable options are:-

2.5.4.3

Hardware Enabled

ALS always active

NM/LCT Configured

ALS active/inactive via NM/LCT

NE ALS Operation Default (not available in R1.3) A card which has its Card ALS Control Link set to allow ALS Operation via NM/LCT must assume a default of either ALS enabled or ALS disabled when the card is added to the logical subrack configuration.


Topic 4 Page 115




The purpose of having an NE ALS Operation Default is to allow the operator to define the default. All cards in the NE will then behave consistently. This is configured by the operator via LCT when the NE is commissioned. It cannot be changed thereafter without de-commissioning the NE. The user configurable options are: ALS Enabled

ALS used

ALS Disabled

ALS not used

No default is offered on the commissioning screen (the field is blank), forcing the operator to select an option from the drop-down list before commissioning can be completed.

2.5.4.4

ALS Operation If enabled by the Card ALS Control Link, the operator is able to configure via NM/LCT whether ALS should operate or not. When a card is added to the subrack logical configuration, its default NM/LCT Control will be the same as the NE ALS Operation Default which was configured when the NE was commissioned. For equipment which does not yet support NE ALS Operation Default configuration at commissioning, when a card is added to the subrack logical configuration, its default NM/LCT Control will be ALS inactive. The ALS operation can be configured by the operator via NM/LCT at any time. The user configurable options are:-

2.5.4.5

ALS Enabled

ALS used

ALS Disabled

ALS not used

Laser Restart Pulse Length Configuration The purpose of having Laser Restart Pulse Length Configuration is to allow the operator to extend the normal 2 second laser restart pulse to a length of 9 seconds. This is sometimes necessary where the optical transmission route features multiple optical amplifiers, DWDM being a prime example. Configuration is possible for each individual optical port. The ALS Restart Pulse Length can be configured by the operator via NM/LCT at any time. The user configurable options are:-

2.5.4.6

2 seconds (default)

For General use

9 seconds

For DWDM/Amplified routes

Laser Restart Delay Configuration The purpose of having Laser Restart Delay Configuration is to allow the operator to extend the more usual 100 second laser restart interval. This is sometimes necessary where the optical output forms an input to a passive DWDM system. Fibre breakage will trigger ALS simultaneously on all connected NEs. If all NEs generate auto-restarts simultaneously, then potential exists for the combined optical power issuing from the


Topic 4 Page 116




broken fibre end to exceed safety limits. This feature provides a means to stagger the restart pulses. Configuration is possible for each individual optical port. The same delay value is used for the delay between Manual (pushbutton), Remote and Automatic restart pulses. The ALS Restart Pulse Interval can be configured by the operator via NM/LCT at any time. The user configurable options are:100 to 300 seconds

In increments of 1 second

(default 100)

2.5.4.7

NE Constantly Changing Trace Identifier Configuration (CCTTI) The purpose of having a Constantly Changing Trace Identifier configuration is to allow the operator to determine the behaviour of the section trace identifier acceptance algorithm in the event that a stable value is never received for long enough to become accepted. This is configured by the operator via LCT when the NE is commissioned. It cannot be changed thereafter without de-commissioning the NE. The user configurable options are:Used (default)

CCTTI Used as part of ALS criteria.

Not Used

CCTTI Not Used as part of ALS criteria.

If the configuration is set to Used, then ALS will shut-down the laser if this Constantly Changing Trace Identifier condition is detected. The reasoning behind this is that the signal could be a heavily attenuated reflection from a broken fibre-end.

2.5.4.8

Interworking of Manual, Remote and Automatic Restart Pulses The Manual (pushbutton) and Remote Restarts are only allowed once and only before the first automatic restart has occurred. Either one manual or one remote restart is allowed, not both. Further manual/remote restart attempts are ignored. This single manual or remote restart must occur before the first automatic restart (if enabled via link) has occurred. The time before the first (and adjacent) automatic restart pulses is set by Laser Restart Delay Configuration. The purpose of the manual and remote restart feature is to allow the operator to restart an optical section once ALS has occurred. This is needed if automatic restart pulses have been switched off via ALS Automatic Laser Restarts Control Link. The manual or remote restart can also be used to provide an instant restart pulse (only once) after ALS has occurred rather than having to wait for the Automatic restart pulse to occur. Once a manual or remote restart has occurred then automatic restart pulses (if applicable) start to occur after the set delay has expired after the manual/remote restart.

2.5.4.9

Spare Test Link At the bottom of the ALS link cluster there are often sp are test links to be used only for development purposes. This must not be used by the customer, even to park a spare link.


Topic 4 Page 117




Figure 2-11: Subset of ALS Configurability Currently Supported By OMS1664 NE ALS PREFERENCE (NM/LCT CONFIGURATION) (PER NE) (COMMISSIONING ONLY) HARDWARE ENABLED

NM/LCT CONTROL

DEFAULT INHERITED WHEN CARD ADDED TO SUBRACK LOGICAL CONFIGURATION

CARD ALS POLICY (NM/LCT CONFIGURATION) (PER CARD)

T M C I R L A F L N A O ' H C C K T N A I L M S D I N M A Y N C I O L I T O P A R S U L G A I ' F E N S I O A C R F I

HARDWARE ENABLED

NM/LCT CONTROL

ENALSDIS (H/W LINK) (PER CARD) NOT FITTED

FITTED

ALS OPERATION (NM/LCT CONFIGURATION) (PER PORT)

D E P P I H S S A

ENABLED

DISABLED

DEFAULT

ALS ACTIVE AUTO RESTARTS ENABLED

DISABLED

REMOTE MANUAL RESTARTS (R1.3 onwards) ENABLED

DISABLED

D E P P I H S S A

NOT FITTED

D E P P I H S S A

FITTED

RESTART PULSE INTERVAL

S C E S 0 0 1 = T L U A F E D

S C E S 2 = T L U A F E D

RESTARDIS (H/W LINK) (PER CARD)

FITTED

RESTART PULSE LENGTH

NOT FITTED

DUALFIBRE WORKING

SINGLEFIBRE WORKING

ALS INACTIVE

D E P P I H S S A

NOT FITTED

FITTED

BIDIENA (H/W LINK) (PER PORT)

100 TO 300 SECS - STEP 1S

MCZRESENA (H/W LINK) (PER CARD)

RESTARDEL (NM/LCT CONFIGURATION) (PER PORT)

2 OR 9 SECS ALSRESPLS (NM/LCT CONFIGURATION) (PER PORT)


Topic 4 Page 118




Table 2-8: ALS configurability per card Item

Per Port/card

Default

Meaning of Default

ENALSDIS

Per Card (S/w per port)

No link fitted

ALS ON (no S/W control)

ALSRESPLS

S/W only, per port

2 sec

Restart pulse 2 sec

ALSCCTTIEN

S/W only, per card

Disabled

Enhanced SFW not used

BIDIENA

H/W only, per port.

No link fitted

SFW disabled

MCZRESENA

H/W only, per card

No link fitted

No Micro Restarts allowed

RESTARDIS

H/W only, per card

No link fitted

Automatic Restarts enabled


Topic 4 Page 119




Figure 2-12: ALS Shelf Commissioning Process Flowchart Start

Is it important that ALS can't be disabled ?

Yes

No

Might you ever want any ports to have ALS disabled ?

No

Yes

Set "NE ALS Preference Default" to "NM/LCT Configured"

Do you want ALS to be disabled by default ?

Set "NE ALS Preference Default" to "H/W Enabled"

No

If the "NE ALS Preference Default" is "H/W Enabled", then the "NM/LCT ALS Operation Default" can be set to either "Enabled" or "Disabled" (it doesn't matter which), but a default must be set before the commissioning screen can be closed.

Yes Set "NM/LCT ALS Operation Default" to "Disabled"

Set "NM/LCT ALS Operation Default" to "Enabled"

End


Topic 4 Page 120




Figure 2-13: ALS Card Insertion Process Flowchart Start

Is it important that ALS can't be disabled ?

Yes

No Might you ever want to choose which ports have ALS enabled enabled ?

No

Yes

Fit hardware link

Don't fit hardware link

("NM/LCT Configured")

("H/W Enabled")

Insert card into subrack

Is "ALS Config Mismatch" alarm raised ?

Yes

Should this card contravene "NE ALS Preference" ?

No

Yes No Change "Card ALS Policy"

Change hardware link setting

End


Topic 4 Page 121



2.5.5


STM-1 Traffic Card Link Settings X650 Link

Description

Pins 1 - 2

ALS Operation Control Link

Pins Pins 3 - 4

ALS ALS Aut Auto omati atic Las Laser er Resta estart rts s Con Contr tro ol Li Link

Pins Pins 5 - 6

ALS ALS Rem Remot ote e Man Manua uall Las Laser er Rest Restar arts ts Cont Contro roll Lin Link k

Pins 7 - 8

(Not Used

Pins 9 - 10

(Not Used)

Figure 2-14: ALS link settings for an STM-1 Trib/Traffic card (Sketch)

PIN A1


Topic 4 Page 122




Figure 2-15: ALS Link Settings for an STM-1 Trib/Traffic card (Photo)

ALS Links

1

2

3

4

5

6

7

8

9

Figure 2-16: Blow-up of Link Area for STM-1 Trib/Traffic Card

Pin 1-2


Topic 4 Page 123



2.5.6


Single Fibre Working Links on Optical Modules The Optical Modules also have BIDIENA links for use when working in Single Fibre Working mode. BIDIENA Link Header X2 Fit Link a1 to b1 for Single Fibre Working operation on Port 1 (using external couplers). Fit Link a2 to b2 for Single Fibre Working operation on Port 2 (using external couplers). Depending on the PCB build level, there are different pin positions for the ALS link settings. X2 Link

Description

Pins A1 - B1

SFW Operation Port 1 (Bi Directional Enable)

Pins A2 - B2

SFW Operation Port 2 (Bi Directional Enable)

a i c s a f t n o r F

Cards with ENU 007 000 000 have X2 link near bottom edge of card. Cards with ENU 007 000 000 or greater have X2 link near

Bot tom

2.5.7

STM-4 Traffic Card Lin k Setting s ALS Link Header X13 ENALSDIS:

Pin 1-2

RESTARDIS:

Pin 3-4

MCRESENA:

Pin 5-6

BIDIEN1

Pin 7-8


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Installation and Commissioning Commissioning BIDIEN2


Pin 9-10

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Figure 2-17: ALS link settings for an STM-4 Trib/Traffic card (Photograph)

ALS

Figure 2-18: Blow-up of Link Area for STM-4 Trib/Traffic Card

Pin 1-2


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2.5.8


STM-16 Traffic Card Lin k Setting s ALS Link Header X13

2.5.9

ENALSDIS:

Pin 1-2

RESTARDIS:

Pin 3-4

MCRESENA:

Pin 5-6

BIDIENA:

Pin 7-8

STM-16 Core Card Link Settings Figure 2-19:STM-16 Core Card Link Settings

ENALSDIS:

Pin 1-2

RESTARDIS:

Pin 3-4 MCRESE


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2.5.10


Flexible STM-1/4 Traffic Card (SFP Based) – 8 Port and 16 Port Version Note: The Card and LTU also has BIDIENA links for use when working in Single Fibre Working mode. Link Header ALS_LNK ENALSDIS:

Pin 1-2

RESTARDIS:

Pin 3-4

MCRESENA:

Pin 5-6

BIDIENA:

Pin 7-8

Link Header BIDI_LNK STM-1 Port 1

Pin 1-2 (also STM-4 port – on 8P and 16P versions )

STM-1 Port 2

Pin 3-4

STM-1 Port 3

Pin 5-6 (also STM-4 port – on 16P version )

STM-1 Port 4

Pin 7-8

STM-1 Port 5

Pin 9-10 (also STM-4 port – on 8P and 16P versions)

STM-1 Port 6

Pin 11-12

STM-1 Port 7

Pin 13-14 (also STM-4 port – on 16P version )

STM-1 Port 8

Pin 15-16

Note: Pin 1 of each link header is marked as indicated by the lines below.


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Figure 2-20: Link Settings for Flexible STM-1/4 Traffic Card

2.5.11

Flexible STM-1/4 Traffic LTU Link Header BIDI_ENABLES STM-1 Port 1

Pin 1-2

STM-1 Port 2

Pin 3-4

STM-1 Port 3

Pin 5-6

STM-1 Port 4

Pin 7-8

STM-1 Port 5

Pin 9-10

STM-1 Port 6

Pin 11-12

STM-1 Port 7

Pin 13-14

STM-1 Port 8

Pin 15-16

Note: Pin 1 of the link header is marked as indicated by the line below.


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Figure 2-21: Link Settings for Flexible STM-1/4 LTU

B I D


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2.5.12


Management and Sync LTU Lin k Setting s On this unit there are switches to allow selection of different impedances. There are two balanced and two-unbalanced synchronisation input ports, individually switch selectable between 75  and High impedance or 120  and High impedance. Switches 1 and 2 (marked with arrows) need to be adjusted to change the impedance.

Figure 2-22: Management and Sync LTU

Channel 2 Input Impedance Unbalanced Input Balanced Input

Output Coupling Settings

S W

Channel 1 In ut Unbalanced Input Balanced Input


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Table 2-9: Switch settings for Management & Sync LTU Sync Channel

Switch

Channel 1 Input Impedance

Switch Function

Switch 1-1

ON = Balanced (120 ohm) OFF = High Impedance (HiZ)

Switch 1-2

ON = Unbalanced (75ohm) OFF = High Impedance (HiZ)

Channel 2 Input Impedance

Switch 2-1

ON = Balanced (120 ohm) OFF = High Impedance (HiZ)

Switch 2-2

ON = Unbalanced (75 ohm) OFF = High Impedance (HiZ)

Channel 1 Output Coupling Settings

Switch 100-1

ON = DC Coupling OFF = AC Coupling

Channel 2 Output Coupling Settings

Switch 100-2

ON = DC Coupling OFF = AC Coupling

2.5.13

Power LTU Link Settings There is a link to select 0V connected to earth.

2.5.14

Link open

: - 0V not connected to chassis earth.

Link closed

:- 0V connected to chassis earth.

Alarm s and Au x LTU There are four link settings which select the local alarm scheme operation between "Bw7R" and "T.I.". 4 Links are fitted to the header LK10 to provide the default behaviour (BWZR) for the local alarm scheme. These are fitted before shipping the LTU. If the T.I alarm scheme is required, then the 4 links need to be moved from LK10 to LK2. The Pinout of the 15-way D type connector is altered as follows. Telecom Italia

Bw7R

-S -S -S b unused Za(B) Za(LE)


+S

-V Service

+S

-V Service

+S

-V Service

a

unused

el

INT NURG

unused

EXT NURG

Za(A)

WARNING (IND)

GND

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+V Service +V Service +V Service SUM REM INT URG EXT URG GND




Figure 2-23: Link settings for the Alarms & Aux LTU

Fit 4 off links to LK10 only for BW7R operation

Fit 4 off links to LK2 only for T.I operation


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2.5.15


Ethern et 100M LTU SFP Lin k Setting s Figure 2-24:Schematic and Picture of Ethernet 100M LTU Link Settings

ALSDIS MCZRESENA RESTARDIS NOT USED

SETTINGS CONNECTOR

JTAG CONNECTOR

SETTINGS CONNECTOR

JTAG CONNECTOR


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2.5.16


Card Installatio n Cards should be inserted into correct shelf positions. Card complement will vary with each contract. Refer to Section 2 for examples of the Shelf layouts.

2.5.17

Power Supp ly & Rack Alarm Checks During commissioning tests references are made to RAUs and EOSs, these may be ignored if an external alarm scheme (Bw7R) is not used.

2.5.17.1

DC Powered Rack

WARNING!

DUPLICATE POWER FEED

This equipment is supplied with more than one DC power feed. To isolate, both feeds must be disconnected. Given the wide tolerance of the possible primary supply voltage. Which can vary i.e. (40.5V to –75V operating range). The total supply current for any rack will depend on the input voltage:

1

Check that the End Of Suite fuses at the Distribution Board, the fuses/circuit breakers of the OMS1664 shelf’s Power Supplies, & Fan Tray fuse/circuit breaker, are removed or switched OFF (as appropriate).

2

Ensure that the shelf Power LTU connectors are disconnected from the shelf, & confirm that the alarm ribbon connectors to the external alarm scheme (if provided) are inserted into the correct shelf connector.

3

Confirm that the End Of Suite fuses at the Distribution Board, the fuses/circuit breakers of the OMS1664 shelf’s Power Supplies, & the Fan Tray fuse/circuit breaker, are correctly rated. If in any doubt the Engineer should contact Marconi support.

4

Confirm that fuses/circuit breakers labelling is correct.

5

Check that the two shelf power connectors are wired correctly, refer to the Power LTU connector drawing below:-

6

At the Distribution Board, insert the End of S uite fuse for the SMA power Supply 1 and measure the voltage present at the racktop. This should lie in the range -40.5 –75V dc, nominal –48V dc.


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Figure 2-25: Power Connectors

7

A1

Shelf Ground

A2

-VE Battery

A3

+VE Battery

Fit the subrack power connector to Power LTU PSA, insert the Racktop fuse or turn ON the Circuit Breaker for Power Supply 1 and confirm that, on the Power LTU “PSA” in slot 19, the Green LED is lit.

Note: The Comms/Controller card has a dedicated PSU powered directly from the subrack power supply. At this point the card will begin it’s initial power up, indicated by the AMBER led flashing.

2.5.17.2

8

Repeat (5) & (7) for Power Supply 2/Power LTU “PSB” in slot 20.

9

If an external alarm scheme is connected, confirm that the appropriate Power Fail alarms are generated. It should not be possible to acknowledge these alarms

Application of Power Note: The shelf is powered from duplicated power connectors from a nominal –48v dc feed. Note: The supplies must NOT be switched OFF while the AMBER LED on the CCU card is flashing, as this may corrupt the Controller’s EEPROM data. Note: The two supplies MUST NOT be switched between the On/Off states in rapid succession as such action can cause a ‘Laser Trip’ condition on the Optical Cards 1

Whilst the CCU Card is executing it’s start up sequence, the AMBER LED will flash. This will take up to 4 minutes, when completed it will then remain lit, this will indicate that the Comms/Controller has finished it’s start up sequence.

2

Any shelf alarms present at this stage should be disregarded.

3

Immediately after power-up, the sub-rack cards will undergo an initialisation period controlled by the CCU (Comms/Controller) card. During this period, it is normal for a number of the card LEDs to flash on and off. This process stops when the CCU (Comms/Controller) card has completed its initialisation cycle.


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OMS1664 Product Family Release 1.3 4

2.6


Turn ON the Fan Tray circuit breaker or fit it’s rack top fuse (as appropriate). Check that the fan tray is operating correctly.

Local Craft Terminal Installation Information The LCT is compatible with Windows 2000 and Windows XP operating systems. The LCT can only be installed by a user with either administrative or elevated privileges. This is because installations access the Windows registry and Windows System folders. 



To ensure that the LCT is available to any user who logs on to the PC, it should be installed by a user with administrative access privileges (e. g . Administrator ). Installation as a non-administrative user (with elevated privileges) should only be carried out to comply with a “users specific” deployment policy.

To install the LCT, first insert the CD-ROM into the CD drive. The set-up instructions are given below: 

Invoke Windows



Select Windows Explorer and view the CD drive.



Select the Local Craft Terminal (LCT) directory, and execute “setup.exe”.



The user is then guided through the installation process.

The LCT is launchable by one of the following methods: 

Double-clicking the icon on the Windows desktop.



Selecting Programs > Marconi Local Craft Terminal from the Start Menu


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OMS1664 Topic 4 - 1_3Installation&Commissioning

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