Bts Hardware

BTS V-2

Mobile Communications Technologies

BTS V-2 Hardware User Manual

1

BTS V-2


BTS _ MMI Hardware

: : BTS

-1 •

OMT HUB •

TRX SRU TRXU PAU DMU CU Disbox

-2

-1 -2 -3

• PCM Link-E1

• -4

-5 BTS ( RG 402U ) TRXU PAU TRXU DMU/ CU

• PAU

2

-6

:

BTS V-2


DMU/CU

• •

96

• -

OMT

-

TRX

•

( Distribution Box ) DBOX

2+2+2

-7 -8

:

• • •

4+4+4

3

BTS : Message : Acceptance Test :

BTS V-2


.

BTS MMI

.

BTS

. BTS

.

BTS

. . .

BTS

4+4+4 2+2 +2

LED

BTS

. / . .

4

Acceptance Test

BTS V-2


(Base Transceiver Station) BTS

.

.

BTS

.

.

BTS

BTS

.

BTS

4+4+4 2 +2+2

BTS

. .

Sector

BTS

120

3

2+2 +2

Rack

.

BTS

4 +4+4

-

2+2+2

.

.

2 .

GSM

:

BTS BTS

-1

(OMT)

Duplicate

. -2 TRX

. -3

.

5

.

BTS V-2


-4 LED

. -5 BTS

OMC

BSC

PC

BTS

. . -6

E1 E1

. . 4+4+4

BTS

.

RF

2+2+2

BTS

.

6

Chain

BTS V-2


-1-1

BTS

RF

. :

TRX

BTS

TRX DMU SRU

TRXU

PAU

CU

E1 Main

DMU E1 Main Duplicate E1 Chain

OMT

SRU

TRXU

PAU

CU

OMT DMU SRU

TRXU

PAU

CU

DMU

HUB SRU

TRXU

PAU

CU

DMU SRU

TRXU

PAU

CU

MMI DMU SRU BTS 2+2+2

7

TRXU

:1-1

PAU

CU

BTS V-2


-1 -1 -1

:

HUB

OMT

-1 -1 -1 -1

OMT Line Interface Module

External Alarm

Internal Link Power

.

Unit

Hardware

Ethernet

O&M

O&M DSP

Status

.

Unit E1 Link

O&M Bus

Internal Link

BSC

BTS

Config BackPlain OMT

Chain

Digital Link

Software

.

Main

O&M

Timing

Config

LAPD

OMT Unit

OMT Unit

FPGA

Unit

Timing

LIM BSC ,BTS

Timeslot O&M

BNC

.

BTS

Duplicate

. .

.

(RSL) Data

SRU

BTS

Digital Link External Alarm BSC

. Config

TCPIP

MMI BTS

Ethernet BTS

IP

.

8

Alarm Box

BSC Software Download

BTS V-2


:

OMT

• Timing for Boards • Managing O&M • Interface with BSC by E1 Link (LAPD) • Interface with MMI by Ethernet (TCP/IP) • Interface for External Alarms • O&M between BTS and BSC • Routing of RSL Signaling

:1-2

OMT

OMT

OMT

. .

9

BTS V-2


-1

LIU

) E1

BTS

(

BTS

.

LIU

SRU

.

Chain

.

LIU

Multi-Drop

TRX

LIU

-2

Master Clock

.

BTS

-3

Operational & Maintenance

: •

BTS MMI

•

OMC

Ethernet Download

PC

.

10

-4

BTS V-2


-5

.

OMT

.

3A

+5V

48 vdc

.

LIU

Ethernet Master Clock Operational & Maintenance

OMT

: 1-3

HUB

.

11

MMI

OMT

-2 -1 -1 -1 Ethernet

BTS V-2


-2 -1 -1

TRX

:

CU DMU

PAU TRXU SRU

TRX

SRU TRXU

PAU

OMT

-1 -2-1-1

TRXU

OMT TRXU

Q , I

.

TRXU

OMT Int. Hopping Int. SRU DSP Control & L1 DSP

OMT Hop. BUS

FPGA TRX Int.

TRX

PAU Int.

PAU& PPSU

E2PROM Reg.

SRU

12

SRU

:1-4

PSU

.

BTS V-2


(

:

SRU

)

•

(

)

• • •

GMSK TX

RX

Prog

•

TRX

A/D

Prog

•

RSSI

A/D

Prog

• •

TX

•

TX

.

Lock

RX

TX

•

Lock

•

D/A

•

TRXU TRXU

13

Shutdown

•

BTS V-2


TRXU RF

Div

Main

RF

( 890 MHZ – 915 MHZ )

Q,I RF

.

Q,I

935 – 960 MHZ

)

PAU

-2 -2-1-1

SRU

RF

. :

( MHZ TRX

-1

IF

-2 -3

SRU GSM BTS

.

TRX

SRU GSM

14

-4

PAU OMT

RF

DTX

-5 -6

BTS V-2


RXD1

LNB

Data

I

IF Amp&Filter

A/D

Demod

Q

SRU Prog

SRU Prog

Prog & control SRU

Prog SRU

Data Synth RX

Synth RX

A/D

Synth TX IF

Rf SRU Control

SRU Control

SRU Control

Prog & control SRU I TXm1

Amp & filtering & Power Control

D/A

Mod

Q

Prog & control SRU

BTS

15

RF

:1-5

MCLK

BTS V-2


-3 -2-1-1

PAU

: •

Fan

•

Fan PAU PAU PAU

•

Shutdown

•

Power good

•

Temperature Over Full

•

VSWR OMT

•

Timing

(Internal Link) OMT

• Hopping Manager

:

•

PAU

-1

:(PSU) TRX

48Vdc

PSU

: TRX

7

SRU

26

PAU VSWR

( FAN)

16

•

5

• • •

BTS V-2


.

PAU PSU

PAU

PAU

PSU SRU

FAN

PAU

.

: 1-6

: PAU

Power Amp

: PSU . +

+

+48V

PPSU

26V

-

7

+ +48V

3.3

GPSU

4.2

-

4.6

PSU

17

PSU

: 1-7

Control & Measurement Unit

BTS V-2


:

: 1-1

PSU

Vswr Measurment Fan Speed Control Tempreature Control PPSU Control Power Control

Control & Measurment Unit

Power Watchdog

27

PAU

PPSU

PAU GPSU SRU TRX

PSU

. 26 V +48V

3.5 A

26

PAU

7V +48V

4A

SRU, TRX

4.6V

PAU

4.2 V

PAU

3.3 V

psu

18

: 1-8

BTS V-2


SRU

VSWR

PAU

SRU

FAN CONTROL

FAN UNIT

48 SRU

Temperature sense

PAU

: 1-9

PAU

72 36

PSU

.

PSU

:

PSU

1- Under voltage protection (UVP) 2- Over voltage protection (OVP) 3- Current limit :

PSU PAU

TRX

2.6 ground

PAU

4.6 4.2

PSU

PSU PAU

19

Power Forward & Backward

: 1-10

Antenna

BTS V-2


-2

PAU TRX

.

.

30db

( FAN) PAU

-3

TRX

.

20

30W

TRX

BTS V-2


DMU

-4 -2-1-1

: -1

( Duplexer ) RX

-2

TX

(Divider) .

Diversity

Main TX

-3

Passive RX

Duplexer

Main

RX

CU

-5 -2-1-1

: TX

(Combiner) PAU

.

TX

.

21

CU

-1

-2

CU Duplexer

BTS V-2


RX1(Diversity) Filter

Divider RX2(Diversity)

TRXU

DMU RX1(Main) Divider RX2(Main) Duplexer

TX1 Combiner

TX1

PAU

TX2

TX2

CU

PAU , TRXU , CU , DMU

22

PAU

: 1-11

BTS V-2


-3 -1 -1

.

TRX

. 48V

.

23

6 BTS

100 TRX

OMT

:

DisBox

-4 -1 -1

BTS V-2


-2 -1

. (

1-12

.

1-1

BTS

). 7

BTS

.

6

TRX

.

OMT OMT

TRX 12

BTS

. .

OMT

TRX CU

DMU

PAU

SRU

TRXU TRX

. .

24

7

.

OMT

.

BTS

TRX

BTS V-2


: 1-12 25

BTS V-2


.

2+2 +2

90

24

u

2+2+2

-1-2 .

26

BTS V-2


Technical Specification: Tx Frequency 925-960 MHz Rx Frequency 880-915 MHz Tx Output Power 45 dbm Max. 18 TRX Capacity: (6,6,6) Rx Sensitivity < -110 dbm

Dimension & Environment: Height

1300mm (2+2+2) 2000mm (4+4+4)

Width 600 mm Depth 500 mm Weight 60 - 100 Kg Operating temp. -5°C ~ +45°C Power supply -48 VDC

Power Consumption: Max 800 watts (2+2+2) Max 1600 watts (4+4+4)

BTS 2+2+2

BTS

:2-1

MCT-Base Transceiver Station (BTS)

27

BTS V-2


-2-2

2-2 .

.

E1

-3 -2

.

2-1 BTS

: 2-1

-48 V dc 0 V dc GND Earth PCM

BNC

Terminal Block

N Connector Bulk Head PC

PC Alarm

28

Ethernet Ext Alarm (14 Pin)

BTS V-2


BTS

29

: 2-2

BTS V-2


-1-3-2

.

– 48 V dc : 0 V dc

-

- 48 V dc

-

Earth

2-3

.

Earth

.

GND

30

-

GND

GND

BTS V-2


BTS

31

GND

: 2-3

BTS V-2


PCM Link-E1

. Chain

-2-3-2

2 -4

Main

E1

. .

E1

. .

75

E1

E1

-4-2

2-6

2-5 . -5-2

2-6 .

.

.

32

BTS V-2


Antenna ANT1

ANT2 ANT3

ANT4 ANT5 ANT6

Connectors

- 48V Connector

Earth

Connectors

GND

E1 EXT Alarm

TD

RD

: 2-4

33

TM

RM

TC

RC

BTS V-2


2+2+2

34

: 2-5

BTS V-2


2+2+2

35

2-6

BTS V-2


-6-2

BTS

. .

2+2+2

2-9

BTS

2-12 2-11 2-10 . :

5

BTS

:

.

RG58U

-

96

-1-6-2

( RG 402U )

: TRXU

PAU

o

CU/DMU

o

( Multi Coupler Unit)MCU

o

PAU TRXU

TRXU PAU PAU

)

( RG 58/u ) .(

36

-1-1-6-2

SMA

TRXU

N-Type

BTS V-2


-2-1-6-2

PAU TRXU DMU/CU

(RG 402U)

DMU/CU

PAU

. -2-6-2

DMU/CU

. Ant Div

Combiner

.

37

2-1

DMU/CU

Main

-

Duplexer

RX

TX

-

Divider

RX

TX

-

CU

-

2-8 2-7

BTS V-2


Panel

Panel

Combiner

38

TX Filter

CU

: 2-7

CU

: 2 -1

BTS V-2


Panel Duplexer

Divider

RX Filter

: 2-8

DMU

: 2-2

DMU

Cable No 1

From Panel

To Duplexer

Connector Ntype

Duplexer

Connector Ntype Ntype

2

Divider

SMA

3

RX Filter

Ntype

Divider

SMA

4

Panel

Ntype

RX Filter

Ntype

SMA

Panel Panel

Ntype

6

Duplexer Divider

Ntype

7

Divider

SMA

Panel

SMA

8

Divider

SMA

Panel

SMA

9

Divider

SMA

Panel

SMA

5

39

SMA

Length

BTS V-2


OMT OMT

Diversity Main Antenna Antenna

PAU0 OUT0

SRU0

TRXU

OUT

0

INm

IN0 IN0

INd

CMB00 CMBFIL01

PAU1

SRU1

TRXU 1

OUT

IN1

IN1

IN

OUT1

INd

Duplexer OUT

INm

DIV OUT1 IN1

MAIN01

OUT2

OUT 3

CMBFIL00 OUT4

2+2+2

40

IN2

DIVR01

: 2-9

OUT

IN

DIVR00

OUT

IN

MAIN00

OUT

BTS V-2


: 2-10

TRXU PAU

1+1+1

41

TRXU DMU

CU

BTS V-2


: 2-11

TRXU PAU

2+2 +2

42

TRXU DMU

CU

BTS V-2


: 2-12

TRXU PAU

4+4 +4

43

TRXU DMU

CU

BTS V-2


-3-6-2

96 96

(1)

TRXU

OMT

. -4-6-2

. -1-4-6-2

OMT

2-5 .

2-16 2-15 -2-4-6-2

TRX

2-13

2-5 .

2-14 -5-6-2

.

Flat (2)

-7-2

DBOX

. -8-2

.

OMT OMT

BSC

MMI

.

OMT

. OMT

7 1-Back Plane 2-Distribution Box

44

.

128

BTS V-2


BTS1+1+1 , BTS2+2+2

45

TRX

BackPlane

: 2-13

BTS V-2


Jumper

Flat Cable 26Pin

BTS1+1+1 , BTS2+2+2

46

TRX

Flat Cable 26Pin

BackPlane

: 2-14

BTS V-2


OMT

47

BackPlane

: 2-15

BTS V-2


26 Pin

26 Pin

26 Pin

26 Pin

R

R External Alarm 14 Pin

14 Pin

OMT

48

BackPlane

: 2-16

BTS V-2


R1 R2 R3 R4 R5 R6 R7 R8

J1

R1 R2 R3 R4 R5 R6 R7 R8

J1

J2

R11 R12 R13

J2

R11 R12 R13

SW1

Fan Fuse

SW1

J3

J4

J11

J12

J27

R1 R2 R3 R4 R5 R6 R7 R8

2+2 +2

49

J1

J2 SW1

: 2-17

R11 R12 R13

BTS V-2


Jumper

TRX Back Plain

BTS 2+2+2

BTS 1+1+1

: Jumper (J) :

50

1

Jumper

3

Jumper

4

Jumper

BTS V-2


R

R

Fuse

R

R

C A B L E

C A B L E

C A B L E

C A B L E

R

R

R

R

C A B L E

OMT

R

R

R

R

4+4+4

51

R

R

R

R

C A B L E

C A B L E

C A B L E

C A B L E

R

R

C A B L E

C A B L E

R

R

C A B L E

C A B L E

R

R

C A B L E

C A B L E

R

R

: 2-18

BTS V-2


:

52

Jumper

TRX Back Plane

6

1

Jumper

2

Jumper

4

Jumper

5

Jumper

6

Jumper

7

Jumper

BTS 4+4+4

: Jumper (J)

BTS V-2


.

2+2+2 2+2+2

-1-3

.

2 +2+2 -1-1-3

3-5 3-4 3-3

3-2 3-1

. -2-1-3

.

53

2-18 2-17

BTS V-2


2+2+2

54

: 3-1

BTS V-2


TX OUT TX OUT

RXD TX OUT

RXM

TX IN

RXD

RXD2

RXM

RXM1 RXD1 RXM2

TX1

A.Div

TX2

CU

TX IN

TX

PAU

TRX

TX

SRU

SRU

TRX

: 3-2

55

TX IN

PAU

A.Main

DMU

BTS V-2

Mobile Communications Technologies 0

: 3- 1

1

: 3- 2

2

56

: 3-3

BTS V-2


-3-1-3

2+2+2

57

.

.

-

BTS V-2


4+4+4 ( 3-3

-1-2-3

) BTS 4+4+4

-1

17 14

DMU

).

IN

-2-3

PAU

).

(

20

N/R

(

TRX

TRX

.

-2

19 SMA

PAU :

.

26

DMU

. .

58

-3

22 21 18

TRX

PAU

-4

23

M

26 23 17 14

:

BTS V-2


4+4+4

59

: 3-3

BTS V-2


: BTS BTS

.

.

-1-4

BTS :

4-1

BTS

)

Earth

-1

Earth

.( .

4-2

. BTS

•

Jumper

.

N

.

16/7 Jumper

(4-1

-2 N

.

16/.7

) . .

BTS

CU PAU

•

48

Earth

DMU

-3

48

Ground

•

48V

-4

SRU TRX OMT

(

)

BTS

-5

BTS

. . LED

-6

E1

-7

LED

. .

-8

TRX

-9 .

60

BTS V-2


Earth GND

( -48 V DC )

BTS MCT-BTS-900-V2 Power Distribution 32 A Breaker ( -48 V DC )

Box

Battery/Rectifier

Earthing Bus Bar Max 3m

BTS

61

: 4-1

BTS V-2


: 2-4

BTS :

(

)

BTS

(

Fuse Panel

:

OMT

LED

OMT

Power Ethernet Active Fault

: .

OMT

48 V

OMT

. HUB

Power

.II

OMT

Ethernet

.

62

.I

BTS V-2


OMT MMI

HUB HUB

MMI (BTS) OMT

OMT

Ethernet

.

E1 Main E1 Main Duplicate

Active

LED

OMT Main

E1 Chain

OMT Duplicate

HUB

MMI

63

Standby

LED

BTS V-2


OMT

Active

OMT

Duplicate

OMT

OMT Main

.

Active

:

Standby

Fault

.

.I

OMT

.

.II

E1

Chain

. .

Loopback

E1

E1

Fault

E1

E1

. Antenna Connectors ANT1

ANT2 ANT3

ANT4 ANT5 ANT6

- 48V Connector

Earth

GND

E1 Connectors ConnectorsConnector

EXT Alarm TD

RD

Loop back

64

.III

Chain

TM

RM

Loop back

TC

RC

Loop back

E1

BTS V-2


: OMT .

Software Download

Software Download (

MMI

OMT

MMI

Software

OMT

Download

MMI OMT

Download Reset

Software

OMT

Software

OMT Reset

.

Download

Reset

.

.

OMT

.

Site

Switch

OMT

.

.

MMI

Download

MMI

OMT

Upload

: Reset

.

Reset

OMT

OMT

Download

.

Config

TRX PAU

(

(

Fuse Panel

.

LED

Config

PSU

: SRU

Power Active Fault

: .

SRU

+7 +5

Power

48 V

PAU

)

-i -ii

PAU

.( :

65

Active

BTS V-2


.

SRU

.1

Software

.

:

SRU

.2

Fault

-1

SRU OMT

.

-2

SRU

Fault

TRXU Power Enable TRX Synthesizer

:

. TRXU

Power

+7 +5

-1

48 V

PAU

)

-2

PAU

.( :

Enable-TRX

.

Lock

. . .

SRU

Off

TRX

.1

TRX

.2

PAU

.3

.4

Software BSC

. .

LED Enable-TRX

TRXU

.

66

Prog TRXU

: Prog (Lock)

Synthesizer

BTS V-2


Synthesizer

Prog

Prog

.

TRXU

Synthesizer PAU

AP

RP

. (

PAU

+26V

48 V

) AP (AMP Power)

.

PAU

AP

RP (RX Power)

PAU

.(

+7 + 5

.

Reset

Download MMI

)

RP

SRU

Software

.(

Software

OMT

Download

SRU Download

SRU

.

67

-2

PAU

.

E2Prom OMT)

-1

48 V

PAU

E2Prom SRU

MMI Software

. Download

BTS V-2


:

.A

BTS

. SRU TRX

data

OMT SRU Loop Back

BTSMMI

.

Loop Back

: BSC MA10

.B

BSC

. BSC

BTS

MA10

.

68

:

BTS V-2


: BTS

MMI

(

BTS

:

.

BSC

: Failure Event Report (1-

SRU

.

(SRUNumber,Cause)

Cause

SRU

SRUNumber

: .

.

SRU SRU

OMT

Database

8 1

OMT OMT

: Cause No1

SRU

: Cause No2

Software Download

: Cause No3

Software Download

. .

SRU

Watchdog

: Cause No4

Reserving: Cause No5 Reserving: Cause No6

. TRX

BTSMMI

SRU BSCMMI

Test

: Cause No8

Online

.

69

: Cause No7 SRU

BTS V-2


: Software Event Report (2-

Download

. . .

70

Download Download

.

SRU

SRU SRU

Download

DSP Control

(Software Radio)DSP SRU

FPGA

: Cause No9 : Cause No10

: Cause No11

BTS V-2


BSC

BTS

(

MMI

: TRX

Disable

(

Arguments

:

Enable

State Change Event Report (1-

BTS Number, TRX Number, Operation State

) .

:

MMI

.

TRX

Physical

TRX

(2-

Logical

: Logical

Logical

.

SRU

TRXU

(1-2PAU

: (1-1-2-

: SRU Software

:

DSP Control

Control Software Watchdog

-1

. .

Software

(Software Radio) DSP

.

SRU

. .

. .

(RF) O&M

Startup Wait for link establish Wait for physical change Software downloading Software downloaded + Watchdog Database downloaded + Watchdog Database downloading

: Firmware -3 : Radio Clock -4

: Radio Frame Sync -5

: Radio Sync -6

: Master Clock -7

SRU

:

71

(RF)

FPGA

: SRU -2

SRU

: L4 State -8

BTS V-2


. . .

OMT TRX

TRX

.

SRU

BCCH

SDCCH

: OML Link -9

O&M

: BCCH Status

n Type

-10

: Busy SDCCH Users -11

User

TRX

#n

: Busy TCH Users -12

User

5-1

SRU

: SRU

BTS Alarm-Message

: 5-1

SRU Error

Description

Solutions Reset

Control Software Watchdog

.

. EPROM Reset

SRU Software Watchdog

.

.

EPROM

.

EPROM

TRX

.

OMT

.

TRX

72

(RF)

.

TRX

SRU

SRU Reset

Radio Sync

SRU

SRU

Reset Radio Frame Sync

SRU

. Reset

Radio Clock

SRU

. Reset

Firmware Watchdog

SRU

SRU

SRU

BTS V-2


Reset

.

Master Clock

TRX

SRU

SRU

SRU

OMT

. O&M

SRU

L4 State

:

Startup Waite for Link Establish Wait for Physical Change Software Downloading Software Downloaded + Watchdog Database Downloading Database Downloaded + Watchdog

Database

Downloaded

+

.

RESET

(OMT SRU) OM

Reset

.

SRU BCCH TRX

TRX (type#n) n

.

73

SRU

Reset OMT

OML Link

BCCH State #n

Watchdog

BCCH

BCCH Type4

.

BTS V-2


( 2-1-2

: TRXU .

: VSWR -1

VSWR

.

TX

Programming

: TX Clock-2

.

RX

Programming

: RX Clock-3

.

: A/D Sync -4

Analog to Digital (A/D)

.

RX

.

RX

SNR

: SNR Main -5

SNR : SNR Diversity

Diversity

.3

TRXU

: : 5-2

TRXU

BTS Alarm-Message TRX Error

Description PAU

PAU

VSWR

Solutions

TX

.

. TX

TX Locked

Reset

.

.

TX

A/P Sync

74

SRU

Reset

RX

RX Locked

.

. .

TX

Reset TX

SRU

SRU

A/D .

SRU

SRU

SRU

BTS V-2


: PAU

(3-1-2-

: Over Temperature -1 . TRX

: Fan Sense -2

Fan

. . PAU

: PAU Power -3

PAU

(

: Output Power

)

. . .

dbm dbm

PAU PAU

: Forward Power -6 : Backward Power -7 :

LED

.

75

-4

: PAU is Commanded -5

PAU

.

is Correct

BTS V-2


PAU

: : 5-3

PAU

BTS Alarm-Message PAU Error

Description

Solutions FAN Sense

FAN

Over Temperature

. FAN

FAN

Over Temperature

TRX

.

FAN Sense=#n rpm

Fan

. TRX

PAU

PAU Power

. PAU

PAU is Commanded

. PAU

Output Power is Correct

76

.

PAU PAU

.

PPSU

ON

BSC

.

PAU

BTS V-2


: Physical

. .

OMT

Physical

: Internal OK -1

OMT

(Duplicate)

( 2 -2

: External OK -2

OMT

. : OML Selected -3

OMT

.

Standby

Network

. 13 MH

:

Clock 32 M

-4

:

Clock 13 M

-5

:

-6

. BSC

Line

Main Line

Duplicate BSC

O&M

: Established OML Link -7 .

BSC

Database

: Downloaded Database -8 .

. 5-4

OMT

:

77

:

BTS V-2


: 5-4

OMT

BTS Alarm-Message OMT Error

Description

Solutions

OMT

Reset

Internal OK

.

OMT

OMT OMT

OMT OMT

External OK

. OML Selected

.

Standby

---------------------- -----------

Network Clock 32M

Reset

OMT

Reset

OMT

. 13M

Clock 13M

. BSC

E1 O&M BSC

:

)

NOS Established OML Link

BSC

-1

E1

.(

O&M Timeslot Sub

Signaling Timeslot

.

BSC

Tei -2

BTS

-3

BER E1

.

-4

. Downloaded Database

BSC

Database Download

. BSC

Main Line

78

BSC

(Duplicate)

Line

Line

BSC

----------------------------------

BTS V-2


BTS

: E1

Link

E1

: 1) 2) 3) 4) 5) 6) 7) 8)

(

ChainBTS MainBTS

Link

Lose of Sync (LOS) Slip Occurred ( RRA) Receive Remote Alarm No Signal CRL Error AIS ( Alarm Indication Signal ) Fast BER Slow BER

5-5

E1

:

79

BSC

BTS V-2


: 5-5

E1

BTS Alarm-Message Lines Error

Description

Solutions .

LOS of Sync (Main) LOS of Sync (Chain) Slip Occurred (Main) Slip Occurred (Chain) Receive Remote Alarm (Main) Receive Remote Alarm (Chain)

E1

.

Chain E1

.

Slip

.

E1

Slip Chain E1

.

TX

.

Chain

TX

.

No Signal (Main)

E1

.

No Signal (Chain)

Chain

E1 E1

(Multi Frame Setting)

CRC Error(Main)

.

Chain E1

(Multi Frame Setting)

CRC Error(Chain)

.

E1

Fast BER=%#n (Main) Fast BER=%#n (Chain)

. Chain E1

. .

AIS (Main)

.

AIS (Chain)

E1

.

80

Main Chained

.

E1 Chain E1

E1 E1

Chain

BSC

BTS V-2


: External Alarms

User

External Alarm

. BTS

External Alarm Fault

ACT

BSC

.

PC

...

OMT Back Plane Power

BTS

N1 P1 N2 P2 N3 P3 N4 P4 N5 P5 N6 P6 N7 P7

...

81

BTS V-2


TRX

: BSC

RSL

.

RSL Link ( BTS Number, TRX Number

(

)

BTS

: 5-6

BSC Links

BTS Alarm-Message RSL-Links Error

Description

Solutions :

TRX

Configuration -1

BSC

RSL

RSLL Link BTS NO=#n

.

.

.

BSC

Signaling Timeslot -2 .

82

-3 BSC

BTS V-2


Acceptance Test for MCT BTS (Version 2)

Acceptance Test of BTS Contains Three Parts : 1- Visual Check of Mechanicals and Electrical parts 2- Off Line Tests 3- Online Tests

1) Visual check of Mechanics and Electrics : - Antenna panel and Connected Cables OK - E1 Panel and Connected Cables OK - Correct Location of boards and passive modules (SRU,OMT , HUB, DMU, TRX, PAU, CU , FU ) This item depends on BTS Configuration OK - Cabling of inter-shelf Connections (flat cables) OK - Cabling of Ethernet(HUB, OMT and MMI interface) OK - Grounding

check OK

83

BTS V-2


- RF Cabling check OK

-Power Connections (48V) OK

- Fuse

checking OK

- Jumper

setting for shelf

number OK

TRX shelf # 0

TRX shelf # 1

TRX shelf # 2

OMT

has no Jumper Setting

-External Alarm Connection

84

OK

BTS V-2


2) Off Line Tests Before BTS power on , it is required to prepare MMI computer and install the related software This computer must have a network card. This part includes three tests groups.

a)

Rack Preparing

b)

Boards test

c)

Power Amplifier tests

a)

Rack Preparing

After 48v(dc) connection and cabling check OMT shall be Powered on.

-OMT LED Status : ok OMT Power Ethernet Active Fault

85

green green green red

BTS V-2


After OMT power on , Power and Active LED , should be green and after connecting

of

Ethernet

cable between

OMT

and

HUB , Ethernet

LED

must be green.

- SRU and TRX LED Status ok After

turning on the Fuses of

TRX shelves the TRX status LED should

become green .

SRU Power LED

O green

Active LED

O green O red

Faut LED

TRX Power LED

O green

Active LED

O green

Synthesizer Lock

O red

86

BTS V-2


Power and Active LED of

SRU

and

TRXs should be green. Fault LED

must be Off.

-PAU LED status

OK

- AP and RP LEDs must be powered on. OK

- MMI Connection check OK

After Running of MMI software , MMI must be connected to OMT (Data link Establishing)

OK

- Software Download to OMT Last Version of BTS

Software must be downloaded. It may take several

minutes .

- OMT Restart

OK

87

BTS V-2


After OMT reset, software will be downloaded to boards and automatically SRU’s will be restarted .

- Site configuration settings It is depended on designated configuration of site (1+1+1, 2+2+2 , … )

MCT

proposes

a

default setting

for the configurations

to optimize the

cabling , but user may change this cabling and configure whatever he wants. Now BTS must be restarted .

2-b)Boards test - Fault LED of E1 blinking OK

If site is configured blinking

N0-chain , with loop back of Main E1 connectors

will be disappeared. But if site is configured chain, the chain E1

connectors must be looped for disappearing the E1 blinking .

- SRU-OMT Loop back check (for all boards) OK

This test is performed from MMI menu. Get sure that to be looped. BER=0 is the condition that passes this test.

88

main E1 connectors

BTS V-2


89

BTS V-2


-SRU-TRX Loopback check (for all boards) - main OK - diversity

OK

Before this test TRX output must be connected to main or diversity inputs. BER<0.001 is the default threshold to pass this test.

2-c) Power Amplifier test Output of PAU

OK Out power of Combiner OK

It is important that PAU output or combiner output must be connected to a load or power meter before Enabling TRX with maximum power.

90

BTS V-2


3) Online tests For these tests MA10 or BSC is necessary.

-Call Originating Establish OK -Call Terminating Establish OK -DPC check (Downlink power control) OK - Hanover test (for outdoor sites) OK -DTX check

OK

91

BTS V-2


.

(+9821) 88745548 -9

88730642 :

(+9821) 88733268 : [email protected] http://www. wicomtech.com

92

Bts Hardware

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