48-TMSS-06-R0

TRANSMISSION MATERIALS STANDARD SPECIFICATION

48-TMSS-06, Rev. 0

TABLE OF CONTENTS

1.0

SCOPE

2.0

CROSS REFERENCES

3.0

APPLICABLE CODES AND STANDARDS

4.0

DESIGN AND CONSTRUCTION REQUIREMENTS 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18

5.0

EQUIPMENT CABINET 5.1 5.2 5.3 5.4 5.5

48TMSS06R0/AAG

General Design Criteria-General Basic Equipment Main Unit-General Description Basic Equipment Main Unit-Redundancy Requirements Basic Equipment Main Unit - Other Functional Requirements Multiplexer Function of Medium Density Fiber Optics Terminal Equipment Plug-In Interface Modules-General Requirements Digital Protection Interface Module 2/4 Wire E&M Interface Module or Equipment Rack Subscriber Interface Module (FXO/FXS) Orderwire Interface Module Contact Closure Module Low Speed Data Interface Module Ethernet (10Base T) Interface Module V.35 Interface Module 64Kbps G.703 Interface Module Additional Contact Multiplication Relays Local Craft Terminal/Manufacturer Specific Network Management Terminal Requirements

General Cabinet Requirements Main Equipment Frame Requirements Panel Requirements Swing Frame Requirements Installed Accessories inside Equipment Cabinet

Date of Approval: August 21, 2006

PAGE NO. 2 OF 51


6.0

EQUIPMENT RACK 6.1 6.2 6.3

General Equipment Rack Requirements Main Equipment Rack Frame Requirements Installed Accessories inside Equipment Rack

7.0

COMMON MDF/IDF REQUIREMENTS

8.0

TESTS 8.1 8.2

9.0

48-TMSS-06, Rev. 0

Type Test Report Requirements Routine (Production) Tests

PACKING REQUIREMENTS

10.0 DOCUMENTATION REQUIREMENTS 11.0 DATA SCHEDULE

48TMSS06R0/AAG


PAGE NO. 3 OF 51


1.0

48-TMSS-06, Rev. 0

SCOPE This Transmission Materials Standard Specification (TMSS) specifies the minimum technical requirements for design, engineering, manufacture, inspection, testing and performance of Medium Density Fiber Optics Terminal equipment intended to be used in the Transmission system of Saudi Electricity Company, Kingdom Saudi Arabia.

2.0

CROSS REFERENCES This Transmission Materials Standard Specification shall be read in conjunction with the latest revision/amendment of Transmission General Specification No. 01-TMSS-01 titled “General Requirements for All Equipment Materials” which shall be considered as an integral part of this TMSS. The TMSS shall also be read in conjunction with Transmission Buisness Unit of Saudi Elecricity Company (TBU) Purchase Order or Contract Schedules for the project, as applicable.

3.0

APPLICABLE CODES AND STANDARDS The latest revision/amendments of Codes, Standards and Recommendations published by the following international organizations shall be applicable for the equipment/material covered in this TMSS. In case of conflict, the vendor/manufacturer may propose equipment/material conforming to one group of Standards specified hereunder without jeopardizing the requirements of this TMSS: 3.1

ANSI/ATIS T1.617

Bearer Services; Frame Relaying - ISDN DSSI; Bearer Services - Frame Relaying

3.2

IEC 60255-5

Insulation Coordination for Measuring Relays and Protection Equipment – Requirements and Tests

3.3

IEC 60255-22-1

Electrical Disturbance Tests for Measuring Relays and Protection Equipment, Part I: 1MHz Burst Disturbance Tests

3.4

IEC 60834-1

Teleprotection Equipment of Power Systems – Performance and Testing, Part 1: Command Systems

48TMSS06R0/AAG


PAGE NO. 4 OF 51


48-TMSS-06, Rev. 0

3.5

IEC 60870-3

Telecontrol Equipment and Systems, Part 3: Interfaces (Electrical Characteristics)

3.6

IEC 61000-4-2

Electromagnetic Compatibility (EMC), Part 4-2: Testing and Measurement Techniques – Electrostatic Discharge Immunity Test

3.7

IEC 61000-4-3

Electromagnetic Compatibility (EMC), Part 4-3: Testing and Measurement Techniques Radiated, Radio Frequency, Electromagnetic Field Immunity Test

3.8

IEC 61000-4-4

Attachment 2, Electromagnetic Compatibility (EMC), Part 44: Testing and Measurement Techniques – Electrical Fast Transient Burst Immunity Test

3.9

IEC 61000-4-5

Electromagnetic Compatibility (EMC), Part 4-5: Testing and Measurement Techniques – Surge Immunity Test

3.10

IEC 61000-4-6

Electromagnetic Compatibility (EMC), Part 4-6: Immunity to Conducted Disturbances, Induced by Radio Frequency Fields

3.11

IEC 61000-4-12

Electromagnetic Compatibility (EMC), Part 4-12: Testing and Measurement Techniques – Oscillatory Waves Immunity Test

3.12

ISO/IEC 8802-3

Information Technology – Telecommunications and Information Exchange Between Systems – Local and Metropolitan Area Networks – Specific Requirements, Part 3: Carrier Sense Multiple Access with Collision Detection (CSAMA/CD) Access Method and Physical Layer Specifications

3.13

ITU-T G.703

Physical/Electrical Characteristics of Hierarchical Digital Interfaces

3.14

ITU-T G.707

Network Node Interface for the Synchronous Digital Hierarchy (SDH)

3.15

ITU-T G.711

Pulse Code Modulation (PCM) of Voice Frequencies, Appendix II: A Comfort Noise Payload Definition for ITU-T G711 use in Packet-Based Multimedia

3.16

ITU-T G.712

Transmission Performance Characteristics of Pulse Code Modulation (PCM)

3.17

ITU-T G.773

Protocol Suites for Q-Interfaces Transmission Systems

48TMSS06R0/AAG


for

Management

of

PAGE NO. 5 OF 51


48-TMSS-06, Rev. 0

3.18

ITU-T G.775

Loss of Signal (LOS), Alarm Indication Signal (AIS) and Remote Defect Indication (RDI) Defect Detection and Clearance Criteria for PDH Signals

3.19

ITU-T G.783

Characteristics of Synchronous Digital Hierarchy (SDH) Equipment Functional Blocks

3.20

ITU-T G.803

Architecture of Transport Networks Synchronous Digital Hierarchy (SDH)

3.21

ITU-T G.805

Generic Functional Architecture of Transport Networks

3.22

ITU-T G.813

Timing Characteristics of SDH Equipment Slave Clocks (ESC)

3.23

ITU-T G.821

Error Performance of an International Digital Connection Operating at Bit Rate Below the Primary Rate and Forming Part of an Integrated Services Digital Network

3.24

ITU-T G.823

Control of Jitter and Wander Within Digital Networks Which are Based on the 2Mbps Hierarchy

3.25

ITU-T G.825

Control of Jitter and Wander Within Digital Networks Which are Based on the Synchronous Digital Hierarchy (SDH)

3.26

ITU-T G.826

Error Performance Parameters and Objectives for International, Constant Bit-Rate Digital Paths at or Above the Primary Rate

3.27

ITU-T G.841

Types and Characteristics of Synchronous Digital Hierarchy (SDH) Network Protection Architectures

3.28

ITU-T G.957

Optical Interfaces for Equipments and Systems Relating to the Synchronous Digital Hierarchy

3.29

ITU-T G.958

Digital Line Systems Based on the Synchronous Digital Hierarchy for Use on Optical Fiber Cables

3.30

ITU-T I.233

Frame Mode Bearer Services

3.31

ITU-T M.2101.1

Performance Limits for Bringing into Service and Maintenance of International SDH Paths and Multiplex Sections

3.32

ITU-T Q.811

Lower layer Protocol Profiles for the Q3 and X Interfaces

3.33

ITU-T Q.552

Transmission Characteristics at 2-Wire Analogue Interfaces of Digital Exchanges

48TMSS06R0/AAG


Based

on

the

PAGE NO. 6 OF 51


4.0

48-TMSS-06, Rev. 0

3.34

ITU-T T.50

International Reference Alphabet (IDA) – Information Technology – 7 Bit Coded Character Set for Information Interchange

3.35

ITU-T V.24

List of Definitions for Interchange Circuits Between Data Terminal Equipment (DTE) and Data Circuit – Terminating Equipment

3.36

ITU-T V.28

Electrical Characteristics for Unbalanced Double-Current Interchange Circuits

3.37

ITU-T V.35

Data Transmission at 48Kbps Using 60-108kHz Group Band Circuits

DESIGN AND CONSTRUCTION REQUIREMENTS 4.1

4.2

48TMSS06R0/AAG

General 4.1.1

The medium density fiber optics terminal equipment shall meet, or exceed the requirements of this specification in all respects.

4.1.2

Manufacturers’ documents and drawings as required in 01-TMSS-01 shall include all pertinent construction details of the equipment. All pertinent dimensions for the construction of the equipment shall be provided for TBU evaluation and approval.

Design Criteria-General 4.2.1

The equipment shall meet indoor ambient temperature requirements as specified in 01-TMSS-01.

4.2.2

The equipment shall be specifically designed for low to medium channel applications while operating at the carrier level rate of STM-1 (as per the ITU-T standard G.709, and related ITU-T SDH equipment standards), and proven for use in an Electric Utility Telecommunications environment. They shall be designed to provide a minimum twenty (20) years of acceptable service in TBU system which may have an operation voltage of up to 380 kV ac..

4.2.3

The design of the equipment shall utilize field proven solid state components and circuits in order to provide high equipment reliability.

4.2.4

Overall system availability (protected mode) between any two interconnected terminals for the medium density fiber optic terminal links shall be 99.999 percent, or greater throughout the minimum 20 year lifetime of the equipment. For determining system availability, the equipment manufacturer's mean time to repair figures (for each medium density fiber optic terminal) shall be used.


PAGE NO. 7 OF 51


4.2.5

4.2.6

48-TMSS-06, Rev. 0

Equipment shall have specific plug-in interface modules (integrated in the basic equipment main unit) which shall allow for direct connection to the following: a.

Protective relay commands (distance type, breaker failure type, directional earth fault relays and other relays requiring direct transfer trip contact closures).

b.

External protective relay signaling equipment (interfacing with the medium density fiber optics terminal equipment at the 64Kbps G.703 level).

c.

Numerical (microprocessor based) protective relays (interfacing with the equipment at the 64Kbps G.703 level).

d.

Numerical (microprocessor based) line differential relays (interfacing with the equipment at the 64Kbps G.703 level).

e.

SCADA RTU equipment (both digital and analog connections).

f.

Transmission of external equipment alarms.

g.

Data traffic.

h.

Ethernet LANS, E1 (2Mbps) G.703 electrical, as well as normal telephone traffic.

Optical inputs/outputs for the equipment shall operate with 1310nm or 1550nm single mode optical signals, with the following available optical transmitters / receivers, which are shown in the Table 1 below: Table 1 - Optical Wavelength and Optical Unit Options WAVELENGTH

48TMSS06R0/AAG

OPTION

1310 nm

High Power (Laser Version)

1550 nm

High Power (Laser Version)

1310 nm

Low Power (LED Version) when available from the Medium Density Fiber Optic Terminal Equipment Manufacturer

4.2.7

Additional signal security shall be integrated in the medium density fiber optic terminals to assure error-free operation of the communications link, when the communications link encounters high bit-error rates.

4.2.8

The equipment shall be based on the configuration supporting STM-1 (155 Mbps) bit-rates. All terminal equipment shelves shall be fully wired, and Date of Approval: August 21, 2006

PAGE NO. 8 OF 51


48-TMSS-06, Rev. 0

additional shelves provided, to support the installation of the plug-in interface modules and future channel expansion requirements, which are specified in the equipment quantity table included either in the equipment purchase order, or the Project Scope of Work and Technical Specification. 4.2.9

All equipment shelves of the medium density fiber optic terminal equipment shall be designed for mounting on standard EIA 19-inch wide racks or equipment cabinets as described in Section 5.0 of this standard.

4.2.10

All modules and shelves of the terminal equipment shall have integral high voltage surge and fast transient protection as specified in IEC.

4.2.11

The equipment shall also contain suitable EMI /RFI protection as specified in IEC.

4.2.12

The equipment shall be designed to contain a basic equipment main unit (which contains equipment shelves and units/modules for the basic multiplexing requirements), as well as plug-in interface modules.

4.2.13

For any medium density fiber optic terminal equipment type, the DC power consumption shall be less than 200 Watts DC Peak Power.

4.2.14

Alarm Transmission Requirements Each terminal shall be equipped with alarm transmission and detection equipment (Alarm Unit (AU) or equivalent) to allow transmission and reception of selected alarms (as specified in the Project Specification) on the remote end(s) of the medium density fiber optic link to the fiber optic remote supervisory terminals at the sites referenced in the associated Project Scope of Work and Technical Specification (for turnkey projects), or Materials Purchase Order (as applicable).

4.2.15

48TMSS06R0/AAG

The equipment shall have extensive alarm reporting facilities to report local terminal alarms. Alarms may be reported locally (at the terminal equipment end) by use of LED indicators, or through use of a local (portable) craft terminal. As a minimum, alarms which are provided with the equipment shall consist of the following as shown in Table 2.


PAGE NO. 9 OF 51


48-TMSS-06, Rev. 0

Table 2 - Alarm/Supervisory Information Requirements for Medium Density Fiber Optics Terminal Equipment

Type Of Alarm

a. Prompt Maintenance (PM), or Urgent Alarm b. Deferred Maintenance (DM) or Non-Urgent Alarm Power Supply Failure

Indicator on front panel (minimum requirements) Yes

Yes - See Note 1 Below

Loss of Incoming Signal (to Optical Transmitter/Receiver)


Bit Error Rate Alarm

Yes - See Note 1 Below Yes - See Note 1 Below No

Loss of Clocking (Primary, or Secondary) Individual Module Failure Protection Channel Failure- Distance Protection Interface Module


Dry Contact And/Or Buffered Alarm Through Manufacturer Specific Network Management System Supervisory Equipment Dry contacts required for TBU Supervisory Equipment Buffered alarm signals required to be reported as ”networked" connection to Manufacturer Specific Network Management System - See Notes 3 and 4 and 6 Below Buffered alarm signals required to be reported as ”networked" connection to Manufacturer Specific Network Management System - See Notes 3 and 4 and 6 Below. Buffered alarm signals required to be reported as ”networked" connection to Manufacturer Specific Network Management System - See Note 6 below.

Buffered alarm signals required to be reported as ”networked" connection to Manufacturer Specific Network Management System - See Notes 5 and 6 below.

Notes to Table 2: I.

Depending on the equipment manufacturer's design, alarms may appear as a front panel LED indication (on the equipment panel), or as a reported alarm on a local (portable) craft terminal, or manufacturer specific network management system. However, the stated alarm, when activated, shall generate as a minimum, either a prompt maintenance alarm, or deferred maintenance alarm on the equipment front panel. The specific alarm details shall appear on a local (portable) craft terminal, or front panel LED indication, at manufacturer specific network management system.

II. Depending on the equipment manufacturer's design, external outputs for the protection channel failure alarm (to route the alarm signal to external supervisory equipment) may utilize separate external outputs for each module, or may be provided as a common protection channel failure alarm output on the local craft terminal or manufacturer specific network management system. III. Dry (potential free) output contacts for the equipment (for alarms) with a minimum of one (1) set of normally open (NO) relay contacts, and a minimum of one set of normally 48TMSS06R0/AAG


PAGE NO. 10 OF 51


48-TMSS-06, Rev. 0

closed (NC) relay contacts shall be provided for each alarm where dry output contacts (as shown on the table) are required. IV. Depending on equipment manufacturer's design, "dry" (potential free) contacts (for alarm reporting purposes) shall either be electromechanical relay contact outputs, or solid state (opto-coupler, or solid state relay) contacts which can be directly interfaced with the input cards of the TBU fiber optic remote supervisory terminals. V. If the equipment manufacturers design supports the use of an external protection signaling unit (independent of the communications unit) which shall be mounted outside the communication equipment rack/cabinet, then the external protection signaling unit shall also provide for "dry contact" alarm indications to TBU supervisory equipment. VI. For alarm reporting purposes, the manufacturer specific network management system shall be used for monitoring of specific alarms on a “networked” basis where the medium density fiber optics terminal would have a dedicated “networked” connection (through LAN/WAN) to the vendor specific network management system at the TBU Telecommunications Network Control Center (TNCC). The manufacturer's design of the medium density fiber optics terminal shall provide an internal buffer of a minimum of 100 events to store specific alarm information indicated above. This buffer for each event shall indicate the type of alarm specified, the station (terminal) where the alarm occurred, and the specific time (for each alarm) at which the alarm, or alarm clearance was specified. 4.3

4.4

Basic Equipment Main Unit-General Description 4.3.1

The basic equipment main unit is a unit which provides for accommodating and interconnection between user interface modules, integrated multiplexer, control units, optical modules, alarms reporting and clocking functions. The integrated multiplexer multiplexes the interface modules, channels to a higher order digital bit stream, which in turn is converted to optical signal through the optical modules.

4.3.2

The basic equipment main unit shall allow the equipment to support 155Mbps STM-1 as defined by the ITU-T. It shall also provide for connections of installed interface modules with external equipment.

4.3.3.

The basic equipment main unit shall provide for "drop" and "insert", and "channel pass through" facilities for 64Kbps time slots or 2Mbps tributaries.

4.3.4.

The basic equipment main unit shall support SNCP protection switching feature.

Basic Equipment Main Unit-Redundancy Requirements As a minimum, the basic equipment main unit shall provide fully redundant modules/units for the following functions:

48TMSS06R0/AAG


PAGE NO. 11 OF 51


4.4.1

48-TMSS-06, Rev. 0

Control Unit Redundancy The medium density fiber optic terminal shall be provided with redundant control units (2 each) with automatic protection switching

4.4.2.

4.4.3.

Power Supply Redundancy a.

If centralized power supplies are used as part of the equipment design (where dedicated power supply modules are independent of other equipment modules), the equipment design shall provide for full power supply redundancy for each module and shelf contained as part of each equipment installation. The backup power supply modules shall be able to provide power for the full equipment/module load, and future channel expansion requirements (as specified in the project Scope of Work and Technical Specification) in the event of failure of the main Power Supply Module, or Modules.

b.

If decentralized power supplies are used as part of the equipment design (where the power supplies are integrated, and on-board each equipment module, and no dedicated power supplies are used), the equipment design shall provide for full redundancy of all critical equipment modules which are required to support the traffic carried by the medium density fiber optics terminal. Failure of an on-board power supply on a critical equipment module shall require the medium density fiber optics terminal to automatically switch over to the identical backup critical equipment module. There shall not be any disruption of traffic carrying capacity of the equipment.

c.

The DC input power feeder sourcing for the medium density fiber optics terminal equipment shall be configured for DC input power supply redundancy from two (2) independent external DC sources (The configuration of input DC power supply sources to equipment shall be selectable at user option).

d.

In cases where external DC to DC converters are required to supply the medium density fiber terminal equipment (e.g., where the medium density fiber optics terminal requires 48 VDC, and the station source is of different rating requiring the use of an external DC to DC converter), the external DC to DC converters shall also be redundant, with one (1) external DC to DC converter supplied for each incoming redundant DC feeder source for the equipment.

Optical Transmitter/Receiver Redundancy Two (2) physically separate redundant optical transmitter/receiver modules with automatic protection switching shall be provided for each direction of transmission/reception (from remote sites to the medium density fiber optic terminal).

48TMSS06R0/AAG


PAGE NO. 12 OF 51


4.4.4

48-TMSS-06, Rev. 0

Common/Backbone Equipment Units Redundancy The Medium Density Fiber Optic Terminal Equipment shall be provided with redundant Common/Backbone equipment units (i.e. International Format cards, Internal Buses, Access cards…etc).

4.5.

Basic Equipment Main Unit - Other Functional Requirements 4.5.1

4.5.2

DC Power Supplies/External DC-to-DC Converters a.

For centralized power supplies DC power supply modules shall plug in to the basic equipment main unit and provide for the DC Power for all units, modules, and shelves in the basic equipment main unit. For decentralized power supplies DC power supply modules shall be sub-modules which are installed on each equipment module.

b.

All DC-to-DC converters used in each DC power supply module shall be switched mode (PWM) type. Series regulator units for DC to DC conversion are not acceptable.

c.

Additionally, if external DC to DC converters are used to provide power to the equipment, then these external DC to DC converters shall be switched mode (PWM) type from TBU approved manufacturers.

d.

DC power supply modules or external DC-to-DC converters shall operate from, and be fully compatible with the DC station service voltage sources, which are located in TBU substation facilities, with the voltage ranging from 42V dc to 240Vdc (depending on the substation service voltage). Refer to the related Project Scope of Work or Material Purchase Order for further details on specific DC voltage rating requirements for this equipment.

Optical Transmitters/Receivers a.

The optical transmitter/receiver shall be included as part of the basic equipment main unit of the medium density fiber optic terminal.

b.

The optical transmitter/receiver shall provide for transmission and reception of optical signals from external fiber optic cable. The operating wavelengths of the optical transmitter/receiver shall be at either 1310nm, or 1550nm, depending on the type of optical unit selected for the optical transmitter/receiver. Operating bit rate for the optical transmitter/receiver unit shall be at STM-1 (155Mbps).

c.

LED Version This version is suitable for applications involving short hauls between medium density fiber optic terminal equipment ends. In this version, the received optical signals are converted inside the module through use

48TMSS06R0/AAG


PAGE NO. 13 OF 51


48-TMSS-06, Rev. 0

of a photo detector, and transmitted optical signals are converted through use of a LED optical transmitting element operating at 1310nm. d.

Laser Version This version is suitable for applications involving long hauls between medium density fiber optic terminal equipment ends. In this version, received optical signals are converted inside the module through the use of a photo detector and transmitted optical signals are converted through use of a Laser optical transmitting element operating either in the 1310nm or 1550nm wavelength (depending on the selection of the Optical Transmitter / Receiver). This version shall also provide for monitoring of the laser function in the equipment, and shall generate an alarm for laser failure for the installed laser unit.

4.5.3

Interfacing with TBU PDH and SDH fiber optic tributary inputs and outputs As part of the design of the medium density fiber optic terminal equipment, the equipment shall be capable of interfacing the overall channel traffic (carried by the medium density fiber optic terminal equipment) to TBU higher level SDH and PDH fiber optic communications systems at two levels, as described below: a.

At the 2Mbps tributary input and output level (through an ITU-T standard unframed G.703 connection.

b.

For TBU higher level SDH (STM-4 and higher) systems with the medium density fiber optics terminal using an unframed STM-1 tributary input and output level, using coded marked inversion signals modulating an STM-1 optical signal (which is fully compliant with ITU-T requirements). This shall be accomplished through the installation and provision of appropriate cables and plug-in modules on the medium density fiber optic terminal equipment. Depending on the equipment manufacturer's design, this interfacing requirement may be met by one or more of the following: i.

By installation of a 2Mbps electrical (HDB3 interface) to intermediate digital format converter and required cabling which (on the 2Mbps side) shall interface with external 2Mbps PDH and SDH tributary inputs and outputs of the TBU SDH and PDH Fiber Optic Communications Systems.

ii. By the installation of an STM-1 (ITU-T Standard 155Mbps) electrical tributary interface, or optical aggregate interface. Actual interfacing requirements (at the 2Mbps level or SDH STM-1 level) of the medium density fiber optic terminal equipment with 48TMSS06R0/AAG


PAGE NO. 14 OF 51


48-TMSS-06, Rev. 0

external TBU SDH and PDH Fiber optic terminal equipment are identified in the attached Project Scope of Work or Material Purchase Order. 4.6

Multiplexer Function of Medium Density Fiber Optics Terminal Equipment 4.6.1

The multiplexer (as integrated part of the basic equipment unit) of the medium density fiber optics terminal shall serve as an interconnecting point which shall allow for digital cross-connections of 64Kbps time slots (in either a drop and insert, or terminal mode configuration), along with cross connection of specified channels, cross-connection, add, or drop of 2Mbps tributaries at a specific medium density fiber optics terminal site, and when available from the manufacturer, drop and insert of partially loaded STM-1 Tributaries (on either an STM-1 Optical, or STM-1 electrical interface module) for cross-connection to other equipment.

4.6.2

Configuration/provisioning of the multiplexer function of the medium density fiber optics terminal is generally performed by use of a local craft terminal, or through use of a manufacturer specific network management terminal.

4.6.3

The multiplexing hierarchy used in the STM-1 Multiplexer shall utilize the ITU-T standard version with pointer processing, section overheads, path overheads and virtual containers as defined by ITU-T only. The ANSI SONET OC-3 version standard shall not be used.

4.6.4

The multiplexing up to the STM-1 level shall be performed through the supply of an integrated unit in the basic equipment main unit, which shall multiplex from the access channel level up to the STM-1 level.

4.6.5

Multiplexer Function Synchronization: The medium density fiber optics terminal shall be provided with capabilities for synchronization from an internal clock (which is built into the medium density fiber optics terminal) and an external input (which is supplied with the medium density fiber optics terminal) which shall allow for external synchronization from a TBU supplied 2Mbps synchronization source. Synchronization sources (either internal, or external) shall be selectable either by jumpers, switches, or through programming/provision of a local craft terminal connected to the medium density fiber optics terminal equipment. Internal clocks, which are provided for multiplexer function synchronization, shall be Stratum 3 quality, or better precision.

4.7

Plug-In Interface Modules-General Requirements 4.7.1

48TMSS06R0/AAG

The medium density fiber optics terminal equipment shall be designed to accommodate plug-in interface modules, with the types of modules as indicated in subsections 4.8 to 4.18. For exact module requirements, and the minimum quantities of each interface module which are to be supplied and installed under a specific project, refer to the related project Scope of


PAGE NO. 15 OF 51


48-TMSS-06, Rev. 0

Work and Technical Specification, or Materials Purchase Order (as applicable). 4.7.2

4.8.2

All plug-in interface modules, shall be provided with full galvanic isolation at all inputs and outputs to protect against line surges entering the equipment. Input voltage surge and fast transient requirements for all inputs/outputs to each interface module shall meet the minimum requirements of IEC 60255.

Digital Protection Interface Module The digital protection interface module shall be a plug-in interface module (into the medium density fiber optics terminal equipment basic equipment main unit) which acts as an interface to transfer protective relay command signals directly from relay equipment or indirectly through other protective relay signaling equipment inside a substation, or other power facility. Depending on the equipment manufacturer’s design, the input/output configuration of the plug-in digital protection interface modules shall be one of the following types: 4.8.1.

48TMSS06R0/AAG

Version 1 digital protection interface module, which supports direct connection between protective relays and medium density fiber optics terminal equipment a.

This Version 1 of module shall allow connection directly from protective relay equipment to the medium density fiber optics terminal equipment. All command signals shall be handled internally in the medium density fiber optics terminal equipment without providing additional special protective relay signaling equipment shelves, which are external to the basic equipment main unit.

b.

This module shall allow for the transfer of command signals using a digital signal with a voltage range of 24V dc to 220V dc, while offering high signal security (extremely low false tripping rate, along with a very low probability of trip command loss). This type of digital protection interface shall be field programmable throughout the entire input voltage range (of 24 Vdc to 220V dc) by TBU personnel either by the field setting of DIP switches, backplane paddleboards or field jumpers or through local craft terminal settings.

c.

Additionally, an internal automatic check back test shall be incorporated in the module to provide for periodic monitoring of each command input or output inside the module. If a check back test fails, a local module alarm and an external alarm shall be generated (both through available “dry” (potential free) contacts as part of the medium density fiber optic terminal equipment, and as an external indicator (LED, or indication on Local (Portable) Craft Terminal).

d.

Further Key Specifications for the Version 1 Digital Protection Interface are indicated in Table 3: Date of Approval: August 21, 2006

PAGE NO. 16 OF 51


48-TMSS-06, Rev. 0

Table 3 – Specifications for the Version 1 Digital Protection Interface PARAMETER Transmit Command Input

Solid State Output (Receive) Relay Ratings Command Transmission Time (see Note 1 below) Command Prolongation Feature

SPECIFICATION REQUIREMENT Programmable through either field installation of DIP switches field jumpers, or backplane paddleboards, or through a Local Craft Terminal for input voltages of 48, 60, 110, 125, and 220V dc Voltages 250V dc, 1 Amp (see Note 3 below) Less than 5 milliseconds Provided (See Note 2 below)

Notes to Table 3: I.

Command transmission time shall include actual time required for the command transmission between command transmitters and receivers in digital protection interfaces (including transit time between medium density fiber optic terminal digital protection interfaces, command recognition time of the command input, and output relay activation time), as well as any additional time required for spurious trip rejection for the interfaces.

II.

The command prolongation feature shall provide for user programming of the extension of the command active (or “on”) time at the receiver end of the digital protection interface.

III.

Depending on the manufacturer’s design, the Output (Solid State Relay) rating may be less than 250Vdc, but shall have a minimum voltage rating of 150V dc which is built onto the module. In this case, in locations where a voltage of greater than 150 Vdc but less than 250V dc is required to be handled by the Output (Solid State) Relay contacts, then the equipment manufacturer shall provide and install external high speed interposing relays of the required 250V dc voltage rating (and which has a transfer time of less than 3 milliseconds) to interface with the higher DC station service voltage.

IV.

Depending on the equipment manufacturer’s design, the input/output configuration of the Version 1 digital protection interface modules shall be one of the following types: 1.

Combined Transmitter/Receiver (One Command Input/Output) This type of digital protection interface module shall combine the command transmission and reception functions of one command inputs/output onto one plug-in interface module. On the command input (transmit) side, the command input shall be provided with ‘Electrical Isolation’ to meet the voltage surge withstand requirements in accordance with IEC 60255 and at the command output side, solid state relays shall be provided as part of this type of the digital

48TMSS06R0/AAG


PAGE NO. 17 OF 51


48-TMSS-06, Rev. 0

protection interface module to provide ‘contact open’, or contact closure’ to the external equipment. 2.

Combined Transmitter/Receiver (Four Command Inputs/Outputs) This type of digital protection interface module shall combine the command transmission and reception functions of four command inputs/outputs onto one plug-in interface module. On the command input (transmit) side, the four independent command inputs shall be provided with ‘Electrical Isolation’ to meet the voltage surge withstand requirements in accordance with IEC 60255, and at the command output side, four solid state relays (one for each independent command output) shall be provided as part of this type of the digital protection interface module to provide ‘contact open’, or contact closure’ to the external equipment. Also, the design of this type of digital protection interface shall guarantee that any single component failure on the interface module shall cause failure of only a maximum of only one protection channel on the interface module. Also, depending on the equipment manufacturer’s design of this module, one (out of the four) command inputs and outputs can be configured to provide the protection channel failure alarm for the overall module.

3.

Separate transmitters and receivers (separate modules for four command inputs and for four command outputs) For this type of digital protective interface scheme, separate modules shall be provided for command transmission (four commands) and command reception (four commands). A further description of these modules appears below: a.

Command Transmitter Module (Four Commands) This type of digital protection interface module shall provide the command transmission function of four command inputs onto one plug-in interface module. At the command input (transmit) side, the four independent command inputs shall be provided with ‘Electrical Isolation’ to meet the voltage surge withstand requirements as specified in this document. Also, the design of this type of digital protection interface shall guarantee that any single component failure on the interface module shall cause failure of only a maximum of only one protection channel on the interface module.

b.

Command Receiver Module (Four Commands) This type of digital protection interface module shall provide the command reception functions of four command outputs onto one plug-in interface module. At the command output side, four solid state relays (one for each independent command output) shall be provided as part of this type of digital protection interface module to provide ‘Contact Open’, or ‘Contact Closure’ to external equipment. Also, the design of this type of digital protection interface shall guarantee that any single component failure on the interface module shall cause failure of only a maximum of only one protection channel on the interface module.

48TMSS06R0/AAG


PAGE NO. 18 OF 51


4.8.2.

4.8.3.

48TMSS06R0/AAG

48-TMSS-06, Rev. 0

Version 2 digital protection interface module, which directly interconnects with protection signaling equipment/protective relays a.

With this version (Version 2) of this module, a connection shall be provided directly from external protection signaling equipment to the medium density fiber optics terminal equipment) or individual protective relaying equipment (e.g. line differential relays, numerical (solid state) relays, and other relay types). The digital protection interface connection shall be supported directly through a 64Kbps (ITU-T) G.703 interface, which is further described in the next paragraph.

b.

For applications where external protection signaling equipment (connected to the medium density fiber optics terminal equipment) uses an ITU-T G.703 interface signal to transmit and receive commands through the communications link, a ITU-T G.703 64Kbps (Codirectional) channel interface shall be used. This type of ITU-T G.703 64Kbps Digital Protection Interface shall have signal and input/output impedance characteristics (120 Ohm balanced cable), which shall be fully compatible, and fully interface with the external protective relay signaling equipment, which shall be connected with this type of Interface.

Version 3-External Protective Relay Signaling Units a.

In cases where the equipment manufacturer cannot support a plug-in interface for protective relay signaling functions (contact opens/closes for protective relay applications), this version shall allow for the mounting of an external protective relay signaling unit (which shall accept contact opens and closures) with interconnection of this unit onto an interface module (G.703 64Kbps co-directional) which is to be contained as part of the medium density fiber optics terminal equipment. The external protective relay signaling unit shall have a minimum of four (4) inputs/outputs and a maximum of six (6) input/outputs, with secure checkback signals built into each input/output on the external protective relay signaling unit to prevent maloperation/false tripping of equipment.

b.

Quantities of external protective relay signaling units supplied under each contract shall be identical to the quantities of the 4 Input/Output contact closure module, as indicated in the related Project Scope of Work and Technical Specification, or Materials Purchase Order (as applicable) for the equipment.

c.

Input and output specifications for the contact closures used in this unit shall be identical to the specifications for the Version 1 digital protection interface.


PAGE NO. 19 OF 51


d.

4.9

48-TMSS-06, Rev. 0

The external protective relay signaling unit shall be mounted outside the medium density fiber optics terminal equipment cabinet or equipment rack.

2/4 Wire E&M Interface Module or Equipment Rack 4.9.1

The 2/4 Wire E&M plug-in Interface Module shall provide for transmission of 2 Wire or 4 wire analog telecommunications signals (either voice, or data through external modems) between medium density fiber optic terminals. E and M leads shall be provided with the interface module to allow for remote signaling capabilities between terminals, and connection to E and M leads for external equipment (e.g. PABX equipment, and other carrier systems).

4.9.2

Levels of the interface shall be adjustable easily in the field to meet user interfacing requirements through either adjustment of internal module DIP switches, or configuration through a local craft terminal. Adjustment increments for the levels shall be in increments of 1dB, or less. Use of programming resistors/strapping jumpers, soldered to the printed circuit board to accomplish level adjustments shall not be acceptable.

4.9.3

For the E and M functions of the 2/4 Wire E&M Interface Module, the modules shall be designed and constructed to be fully compatible (and shall fully interface) with all signaling functions of TBU PABX equipment, as well as other TBU Telecommunications Carrier equipment, as shown in the Table 4. Table 4-E and M Signal Interfacing Requirements Type of Signaling Type I Signaling Type V Signaling

48TMSS06R0/AAG

M- Lead Input

E-Lead Output Contact

Battery (-48Vdc) Ground Open Ground

Contact Closed Contact Open Contact Open Contact Closed

4.9.4

Interfacing with external equipment (e.g.-other Carrier systems, or PABX equipment) on the 2/4 Wire E&M interface module (for the E and M signaling functions) shall be performed through internal settings (internal strapping jumpers, or remote programming through a portable local craft terminal) on the interface module. Installation/use of external cables or other devices/circuits external to the 2/4 Wire E&M Interface Module to perform the E and M signaling interfacing shall not be acceptable.

4.9.5

The E and M signaling function of this interface module shall be fully transparent, and fully independent of the voice path (VF Signal Transmit, and VF Signal Receive) used in the module. Schemes using E and M signaling control of the voice path (e.g. E or M lead turning ‘On’, or ‘Off’ the voice path) in the module shall not be accepted.


PAGE NO. 20 OF 51


48-TMSS-06, Rev. 0

4.9.6

Depending on the equipment manufacturer’s design, both the 2 Wire E & M and 4 Wire E & M functions may be combined in one module, or separate modules can be provided for the 2 Wire E & M function and 4 Wire E & M Function.

4.9.7

Depending on the equipment manufacturers design, the 2/4 Wire E&M interface may contain multiple circuits per 2 wire E/M, 4 wire E/M module. Table 5 may be referred for additional key specifications. Table # 5 – Additional Key Specifications for the 2/4 Wire E&M Interface Module. SPECIFICATION REQUIREMENT

PARAMETER Operation Mode Rated Impedance Return Loss AF Bandwidth Output (Receive) Level Requirements (4 Wire E/M Function)

Input (Transmit) Level Requirements (4 Wire E/M Function)

Output (Receive) Level Requirements (2 Wire E/M Function) Input (Transmit) Level Requirements (2 Wire E/M Function) Frequency Response

Linearity

Idle Channel Noise (including Quantization Noise) Crosstalk

48TMSS06R0/AAG

2 Wire E/M, 4 Wire E/M 600 Ohm balanced (symmetric) Greater than 20 dB for 4 Wire Greater than 10 dB for 2 Wire 300 Hz to 3400 Hz Nominal +7 dBm at 600 Ohms Resistive, adjustable to alternative Output (Receive) Level of – 10 dBm (for Analog Data applications) at 600 Ohm resistive Nominal – 16 dBm at 600 Ohms Resistive, adjustable to alternative Input (Transmit) Level of - 10 dBm (for Analog Data applications) at 600 Ohm resistive. Nominal – 2 dBm at 600 Ohms Resistive Nominal – 2 dBm at 600 Ohms Resistive Compliant with frequency resistive requirements as per ITU-T G.711 and ITU-T G.712 Compliant with Linearity requirements as per ITU-T G.711 and ITU-T G.712 Less than – 60 dBm0 Less than -60 dB isolation between channels


PAGE NO. 21 OF 51


4.10

48-TMSS-06, Rev. 0

Subscriber Interface Module (FXO/FXS) 4.10.1

The subscriber interface plug-in interface module shall permit direct connection of a telephone set via a medium density fiber optic link to a distant telephone exchange. This method shall also ensure full galvanic isolation between subscriber and PABX circuits.

4.10.2

For the module provided at the subscriber (Foreign Exchange Subscriber or FXS) end, the interface module shall provide all the functions for the operation of a telephone set, such as microphone supply current, ringing voltage generation (through an internal ringing generator installed on the module), and loop current detection.

4.10.3

For the module provided at the exchange (Foreign Exchange Office or FXO) end, the Interface shall emulate a telephone set, and thus form the interface to the exchange.

4.10.4

Levels of the Interface shall be adjustable easily in the field to meet user interfacing requirements through either adjustment of internal module DIP switches, or configuration through a portable local craft terminal. Adjustment increments for the levels shall be in increments of 1dB, or less.

4.10.5

Use of Programming Resistors/Strapping Jumpers, which shall be soldered to the printed circuit board to accomplish level adjustments, shall not be acceptable.

4.10.6

Depending on the equipment manufacturer’s design, the FXO (Foreign Exchange Office) and FXS (Foreign Exchange Subscriber) function may be combined onto one module type, or may be contained as part of two separate module types. The manufacturer’s design may include the provision of multiple circuits per FXO/FXS module.

4.10.7

Also, depending on the equipment manufacturer’s design, subscriber interface modules may be configured to provide point-to-point Orderwire operation from one terminal to another terminal contained in each medium density fiber optic Communications Link.

4.108 As part of the FXS interface, ringback tone shall be provided. Table 6 may be referred for additional key specifications for the module.

48TMSS06R0/AAG


PAGE NO. 22 OF 51


48-TMSS-06, Rev. 0

Table # 6 – Additional Key Specifications for the Subscriber Interface Module (FXO/FXS) PARAMETER SPECIFICATION REQUIREMENT Operation Mode 2 Wire FXO, 2 Wire FXS Rated Impedance 600 Ohm Balanced (Symmetric) Return Loss Greater than 20 dB AF Bandwidth 300 to 3400 Hz Output (Receive) Level Level of 0 dBm at 600 Ohms Requirements Resistive Input (Transmit) Level Level of 0 dBm at 600 Ohms Requirements Resistive Frequency Response Compliant with Frequency Response Requirements as per ITU-T G.711 and ITU-T G.712 Idle Channel Noise (including Less than -60 dbm0 quantization noise) Crosstalk Less than -60 dB isolation between channels Ringing Supply Frequency (for 20 Hz FXS versions only) Ringing Supply Voltage (for FXS Greater than 75 Volts AC RMS versions only) Ringing Detection Detects 20 Hz ringing frequencies, Voltage/Ringing Detection with a ringing voltage range of 15 Frequency (for FXO versions Volts AC RMS to 90 Volts AC only) RMS Linearity Compliant with ITU-T requirements G.711 and G.712

4.11

48TMSS06R0/AAG

Orderwire Interface Module 4.11.1

The orderwire interface plug-in module shall provide for the point-to-point connections (without the use of external PABX equipment) between all terminals contained as part of the medium density fiber optic communications link. The interface module shall provide all the functions for the operation of telephone sets at all ends of the link, such as microphone supply current, ringing voltage generation (through an internal ringing generator installed in the module), ringing voltage detection, and loop current detection (to initiate “off-hook” operation of the remote end telephone set(s).

4.11.2

As part of the orderwire interface, ringback tone shall be provided.

4.11.3

Depending on the equipment manufacturer’s design, additional features may be provided as part of the orderwire interface module which may include ringback tone, selective calling (of a specific telephone installation in the Orderwire system), Party-line calling (interconnecting all telephones in the Orderwire system) and an audible buzzer to alert a called telephone on the Orderwire system. Date of Approval: August 21, 2006

PAGE NO. 23 OF 51


4.11.4

4.12

4.13

48-TMSS-06, Rev. 0

Voice frequency characteristics and ringing characteristics on the orderwire interface module shall be identical to the Subscriber Interface, with specifications included in Table 6.

Contact Closure Module 4.12.1

The contact closure plug-in interface module permits the transmission and reception of Contact Closures and Opens (binary inputs and outputs) between ends of the F/O terminal equipment.

4.12.2

Each contact closure plug-in interface module shall provide for a minimum of four (4) independent contact functions (contact opens/closes) which can be transmitted and received through one contact closure module.

4.12.3

All inputs of the contact closure module shall be electrically isolated, and meet the input voltage surge withstand requirement indicated in IEC 60255.

4.12.4

For all outputs, mechanical, or solid state relay outputs shall be provided as part of the internal construction of the module. Output contacts shall be rated at a minimum of 150 Volt, 0.5 Ampere of current.

4.12.5

In cases where the equipment manufacturer offers a combined digital protection interface and contact closure interface as one module, the contact closure function of the interface module shall not be accepted. For this purpose, only dedicated contact closure modules (without digital protection interface signals) shall be accepted for the application of contact closure function.

Low Speed Data Interface Module 4.13.1

The low speed data interface module shall provide for direct interconnection of external low speed asynchronous digital data communications circuits through the medium density fiber optic terminal equipment link without the use of external data modems.

4.13.2

Depending on the equipment manufacturer’s design, the module shall provide up to eight (8) asynchronous data circuits (with each data communications circuit complying with ITU-T Recommendation V.24/EIA Standard RS-232) which can be interconnected with one low speed data interface module.

4.13.3 For each low speed data circuit, the minimum data transmission rate, which the circuit shall support, shall be 1.2Kbps. However, depending on the equipment manufacturer’s design, individual data circuits on the low speed data interface module can be programmed for operation up to a maximum data transmission rate of 64Kbps.

48TMSS06R0/AAG


PAGE NO. 24 OF 51


4.14

4.15

48-TMSS-06, Rev. 0

Ethernet (10Base T) Interface Module: (Optional) 4.14.1

This module shall provide for transmission and reception of Ethernet 10 Base T signals, as well as interfacing with external equipment. Signal levels, and transmission rates shall be fully compatible with the IEEE and ANSI Ethernet 10 Base T standard.

4.14.2

As part of the module’s design, standard RJ 45 connectors shall be provided. Depending on the equipment manufacturers design, the Ethernet 10 Base T interface module may be a separate plug-in interface module, or an integrated unit that is built into the basic equipment main unit.

4.14.3

In all cases, for the medium density fiber optics terminal equipment, the supply/installation of one (1) each Ethernet 10 Base T port shall be required to be provided as part of the equipment.

V.35 Interface Module This module supports the connection of single, or multiple V.35 signals onto one interface module. V.35 data signals may be low speed data, or working up to high speeds of fractional E-1. As part of the design of this module, an on-board connector (standard V.35) may be supplied on the module (either DTE, or DCE connection), or an external interface cable (with the standard V.35 connector provided on the interface cable) shall be provided (either DTE, or DCE), for interfacing with external equipment. Speeds of operation of the V.35 interface shall be programmed on the module itself (through either DIP switches, or through the use of a local craft terminal), or through the common interface unit of the medium density fiber optics terminal equipment.

4.16

64Kbps G.703 Interface Module This module supports the transmission and reception of 64Kbps G.703 signals (codirectional only) from the module to external equipment. Signal levels, and transmission rates shall be fully compatible with the ITU-T G.703 standard involving co-directional transmission of signals. Impedance of the signal path shall be 120 ohms, balanced as per ITU-T requirements.

4.17

2Mbps Interface Module This module supports the transmission and reception of 2Mbps G.703 signals from the module to external equipment. Signal levels, and transmission rates shall be fully compatible with the ITU-T G.703 standard. Impedance of the signal path shall be 120 ohms balanced or 75 ohms unbalanced as specified in the related Project Scope of Work and Technical Specificationsor Material Purchase Order (as applicaple).

48TMSS06R0/AAG


PAGE NO. 25 OF 51


4.18

Additional Contact Multiplication Relays 4.18.1

A minimum of five distinct (5) contact multiplication (interposing) relays shall be provided either as part of the medium density fiber optics terminal equipment shelf (as a separate module), or external to the medium density fiber optics terminal equipment (in the medium density fiber optics terminal equipment shelf or rack). The manufacturer shall be subject to TBU approval. Brochures/samples shall be provided during the bid stage for TBU evaluation and approval.

4.18.2

If the contact multiplication relays are external to the equipment, they shall use DIN Rail Mount types to allow for ease of mounting on the equipment cabinet, or rack for the medium density fiber optics terminal equipment.

4.18.3

These contact multiplication relays shall allow equipment alarms to be generated to a number of distinct alarm points inside the substation, such as station SCADA equipment, station SOE equipment, annunciator panels and others.

4.18.4

Each contact multiplication relay which is supplied in the medium density fiber optics terminal equipment, shall have the following characteristics: a.

A minimum of 4 Pole Double Throw (Form A) contact on the input/ output side of the relay.

b.

A programmable “coil” voltage using primary DC Voltage of – 48Vdc (Communications Grade) power, 110V dc (with a range of 90 to 130V dc operation), 125Vdc, and 220V dc

c.

An external Krone disconnect module terminal block (100 Pair) for allowing the interconnection of external devices/power supply sources to the contact multiplication relay.

d.

Fully wired to support the alarm and relay requirements for the specific site where the medium density fiber optics terminal shall be installed.

e.

Utilize either solid state, or electromechanical inputs/outputs as part of the relay design. However, if solid state relays are used, the following additional requirements shall hold:

f.

48TMSS06R0/AAG

48-TMSS-06, Rev. 0

i.

Contact “Closed” resistance shall be 1 ohm or less.

ii.

Contact “Open” shall be 1 meg ohm, or greater

iii.

During Contact “Open” there shall be no leakage current which may drive an external high impedance input device to an “on” condition.

Include an Indicator (either LED, or “Flag” indicator) to indicate the closure/tripping of the relay.


PAGE NO. 26 OF 51


4.19

g.

Contact closure time shall be less than 10 milliseconds, and contact open time (from a previous contact closure) shall be less than 10 milliseconds.

h.

The contact multiplication relay shall have a minimum of 250 Vdc / Vac voltage rating on the contact, with a 5 ampere AC/DC minimum continuous contact rating, and a short surge rating of 10,000 amperes.

Portable Local Craft Terminal and Manufacturer Specific Network Management Terminal Requirements 4.19.1

4.19.2

Portable Local Craft Terminals a.

Portable local craft terminals shall be supplied if the equipment manufacturer’s design of the medium density fiber optic terminal equipment requires the use of portable local craft terminals to obtain further equipment alarm information, or to configure input and output parameters on the terminal equipment.

b.

When the local craft terminal is specified as a notebook computer, the manufacturer shall provide state-of-the art notebook computer. These notebook computers shall be brand name computers approved by the TBU and shall be latest model at the time of delivery. Refer to the Project Technical Specification (for turnkey projects) or the Materials Purchase Order (as applicable) for further details pertaining to specifications for the computer terminal equipment, which is to be used as a local craft terminal (where included).

c.

Original (licensed) copy of the software that is required to configure/manage the provided medium density fiber optical terminal shall be provided with each local craft terminal.

d.

All local craft terminals which are Notebook computers shall also include a carrying case, one (1) additional rechargeable battery pack (beside the battery pack installed in the computer), and all other accessories.

e.

For maintenance purposes, serial ports of interfaces cards should be accessible from the local craft terminal display.

Manufacturer Specific Network Management Terminals a.

48TMSS06R0/AAG

48-TMSS-06, Rev. 0

Manufacturer specific network management terminals shall allow TBU personnel to directly obtain information about detailed alarms on manufacturer’s medium density fiber optics terminal equipment through LAN connections (through the TBU LAN/WAN network). For the connections the LAN interfaces shall be utilized.


PAGE NO. 27 OF 51


b.

c.

5.0

48-TMSS-06, Rev. 0

If a personal computer (pc) is used as part of the manufacturer specific network management terminal, then the personal computer (PC) shall have the following minimum requirements: i.

Operating system of latest version to support the manufacturer specific network management function.

ii.

These computers shall be brand name computers approved by the TBU.

iii.

Processor, and other peripherals used in the computer shall be of the latest design and technology for this specific application and shall be the latest model at the time of delivery. Where indicated, refer to the related Project Technical Specification (for turnkey projects), or the Materials Purchase Order (as applicable) for the latest relevant specifications pertaining to personal computer equipment used for this application.

Also, refer to the related Project Technical Specification (for turnkey projects), or the Materials Purchase Order (as applicable) for specific requirements on the quantities of the manufacturer specific network management terminals which are to be supplied.

EQUIPMENT CABINET 5.1

48TMSS06R0/AAG

General Cabinet Requirements 5.1.1

The medium density fiber optics terminal equipment shall be housed in a freestanding floor mounted cabinet with maximum dimensions of 2.2. meters high, by 850 mm wide, by 700 mm deep. The cabinet shall be equipped with a swing frame (for holding up to two (2) medium density fiber optics terminals and up to one (1) medium density fiber optics terminal supervisory terminal unit.). both a red LED indicator (to indicate an alarm showing malfunction of the installed equipment) and a green LED indicator (to show that the equipment is provided with equipment power) shall be installed in the cabinet. Both the red LED indicator, and the green LED indicator installed in the equipment cabinet shall be clearly visible by technicians with all equipment cabinet doors closed, and equipment cabinet panels installed.

5.1.2

The cabinet shall allow for both top and bottom entry of medium density fiber optics, power, ground, protective relaying, data cabling, Telecommunications cabling, and other cabling. For the top and bottom entries (for cables), all unused cable entries shall be equipped with dust seals to prevent the ingress of dust and other foreign matter into the cabinet.

5.1.3

Cooling vents shall be provided in the equipment cabinet to allow for natural (convective) cooling of the installed equipment. The degree of protection of equipment cabinet shall be at least IP41 as per IEC60529 or equivalent. Date of Approval: August 21, 2006

PAGE NO. 28 OF 51


48TMSS06R0/AAG

48-TMSS-06, Rev. 0

5.1.4

Grounding of all metallic frames, and equipment inside the equipment cabinet shall be provided through connection by earthing straps (minimum # 4 AWG stranded copper tie straps) to a common grounding tie point inside the equipment cabinet. Facilities on the common grounding tie point shall be provided to connect all internal grounds (in the terminal equipment cabinet) with an external ground wire terminating on the common grounding tie point.

5.1.5

Rails, or other mounting devices shall be provided to allow for the mounting of terminal blocks on the back of the equipment cabinet.

5.1.6

Cable retainer channels, or cable clamps/distribution rings shall be provided to retain cables routed from the terminal blocks to the Equipment shelf.

5.1.7

Exact layout of the equipment and cabling which shall be installed inside the equipment cabinet shall be provided by the equipment vendor for TBU review and approval prior to the delivery of the equipment. .

5.1.8

The terminal equipment shall be fully wired to allow for easy installation of additional plug-in interface modules to be provided under the project, and future plug-in module additions, which are specified in the Project Scope of Work/Technical Specification (for turnkey contracts), or the Materials Purchase Order (as applicable) without rewiring the cabinet. Terminal blocks shall be installed at the back of the equipment cabinet to interface equipment modules with external wiring.

5.1.9

For connection of external protective relaying cabling, supplied terminal blocks (for the termination of external protective relay cabling) shall be designed for the wire gauge of the protective relay cable which shall be terminated, and also supplied terminal blocks (used for protective relay terminations) shall contain disconnectable “hinged blade” type jumpers to allow isolation of the protective relays from the medium density fiber optics terminal equipment when the “hinged blade” jumpers are placed in the “open” position. additionally, for these protective relay terminal blocks, test points shall be provided on both ends of the terminal block to allow monitoring of the circuits on both ends of the terminal block. Finally, for these terminal blocks, a minimum of 1000 Volts AC RMS isolation shall be provided as part of the design of the terminal block (with the isolation rating being applicable between terminals in the terminal block, as well a s between terminals and outside mounts on the terminal block).

5.1.10

The cabinet shall be fitted with other required accessories, as specified in Section 5.5.

5.1.11

Additionally, where AC wiring is required to be installed to the equipment cabinet and inside the equipment cabinet, this wiring shall be installed in rigid steel conduit conforming to the latest requirements of NFPA 70 (U. S. National Electric Code).


PAGE NO. 29 OF 51


5.2

5.3

5.4

Main Equipment Frame Requirements 5.2.1

The main equipment frame of the cabinet shall be made of sturdy rolled steel provided with a corrosion resistant coating, with all edges being rounded (no sharp edges). All corners shall be strengthened through welded reinforced members.

5.2.2

The main equipment frame shall also include the installation of a swing frame and with the frame loading requirements designed to support the swing frame, the maximum amount of equipment on the swing frame allowed (see Section 5.4), and up to 30 kilograms of additional equipment mounted inside the cabinet (but not mounted on the swing frame), as well as all top, bottom, side and door panels (which are to be installed on the medium density fiber optics terminal equipment).

Panel Requirements 5.3.1

The rear, side, front, top and bottom panels of the cabinet shall be constructed of smooth steel sheet, with a minimum thickness of 1.5 mm.

5.3.2

The door panel of the cabinet shall be constructed of a smooth steel sheet, and shall have a minimum thickness of 2.0 mm. The mounting of the door panel on the Equipment shall be hinged on the left side of the panel (with the door opening from the right side of the equipment cabinet). The door of the panel shall allow for a minimum of 140 degrees opening angle from the closed position.

5.3.3

Each panel of the equipment cabinet shall be primed with a corrosion resistant primer before the final paint finish is applied. The final paint finish shall resist chipping, cracking, or peeling of the paint finish during normal handling of the cabinet and during the installation and operation of the equipment in the environmental conditions specified in TBU materials standard specification 01-TMSS-01. The color of the final paint finish shall be Beige (RAL Color Code RAL 7032, or other TBU approved equal), which is similar to the paint finish of the existing fiber optics terminal equipment cabinet located in TBU facilities.

Swing Frame Requirements 5.4.1

48TMSS06R0/AAG

48-TMSS-06, Rev. 0

The swing frame of the equipment cabinet shall be constructed from welded torsion-free corrosion resistant steel. The swing frame shall be designed to allow for the installation of up to two (2) medium density fiber optics terminals, and up to one (1) medium density fiber optics terminal supervisory terminal unit. The swing frame shall be left-hand hinged (to allow for the opening of the swing frame from the right side of the frame). Latches and locks (along with a minimum of one key per cabinet) shall be provided as part of the swing frame, which shall secure the equipment swing frame in the equipment frame. The swing frame of the panel shall allow for a minimum of 120 degrees opening angle from the closed position.


PAGE NO. 30 OF 51


5.5

48-TMSS-06, Rev. 0

5.4.2

Prior to TBU procurement of the equipment, the equipment vendor shall propose the type of lock which shall be provided as part of the equipment cabinet for TBU review and approval.

5.4.3

The swing frame shall be sized to accommodate 19 inch wide medium density fiber optics terminals and other equipment, with the hole spacing on the swing frame configured to support the installation of the medium density fiber optics terminal equipment, medium density fiber optics remote supervisory terminals, and other equipment conforming to standard EIA (Electronic Industries Association) equipment rack hole spacing.

5.4.4

Unused panel locations on the swing frame shall be covered with dummy faceplate covers of the same color as the terminal front panels.

Installed Accessories inside Equipment Cabinet With each equipment cabinet installation of medium density fiber optics terminal equipment, there shall be provided installed accessories, which include a maintenance light, MDF/IDF terminal blocks, internal grounding bus bar, electrical (DC and AC) circuit breakers, AC convenience receptacles, and optical cabling requirements. A description of each follows. 5.5.1

5.5.2

Maintenance Light a.

Each Equipment cabinet shall be provided with a non-interference causing and non-heat radiating light which shall provide for full illumination of the interior of the terminal equipment cabinet (for maintenance purposes). The light shall be mounted on the top of the equipment cabinet, with the lamp in the light being lit automatically (turned on) upon the opening of the cabinet swing frame. A manual "on/off” switch shall be provided as part of each light.

b.

The light shall be fitted with a diffuser to provide for personnel protection (in event of the shattering of the lamp).

c.

Input power for the light shall be provided from the Station AC service power source inside each substation (where the medium density fiber optics terminal equipment shall be located). The AC power supply relays shall match the station AC service power source. No stepup/down transformers shall be used for powering the light.

MDF/IDF Terminal Blocks Each medium density fiber optics equipment cabinet shall be equipped with MDF/IDF Blocks (Krone LSA Plus, or equal), with the minimum quantity of MDF/IDF blocks to be included in the equipment cabinet as specified in Section 7.0

48TMSS06R0/AAG


PAGE NO. 31 OF 51


5.5.3

48-TMSS-06, Rev. 0

Internal Grounding Bus Bar Each medium density fiber optics equipment cabinet shall be provided and equipped with an internal grounding bus bar, which shall provide for a common grounding connection for the installed equipment inside the equipment cabinet, as well as a centralized tie point for the incoming external telecommunications equipment grounding cable which shall enter the equipment cabinet.

5.5.4

Electrical (DC and AC) Circuit Breakers and AC Convenience Receptacles a.

Individual input DC and AC circuit breakers shall be provided in the terminal equipment cabinets to provide power for the following equipment units installed in the cabinet (with a minimum of One (1) each DC circuit breaker per equipment unit, unless otherwise indicated below): i.

48TMSS06R0/AAG

Installed medium density fiber optics terminals (a minimum of two DC circuit breakers for each installed medium density fiber optics terminal).

ii.

Installed medium density fiber optics terminal supervisory equipment (a minimum of one (1) DC circuit breaker per supervisory equipment terminal).

iii.

External alarm indicators

iv.

Fluorescent maintenance light

v.

Additional accessories/equipment shelves

vi.

Two (2) additional DC circuit breakers per cabinet (10 ampere rating to allow for connection of DC supply for future equipment installations).

b.

Each DC circuit breaker shall have auxiliary integrated alarm (dry) contacts, which shall provide an alarm indication of a breaker trip, or breaker off condition, and be sized to accommodate both the normal DC load of the equipment, as well as the inrush current for the equipment when the equipment is first turned on.

c.

Also, as part of the medium density fiber optics equipment cabinet, one (1) duplex AC convenience receptacle suitable for the station service AC voltage shall be installed, with the configuration of the duplex AC convenience receptacle being provided as per the requirements of the latest edition of NFPA-70.


PAGE NO. 32 OF 51


5.5.5

48-TMSS-06, Rev. 0

Optical Cabling Requirements As part of the optical cabling requirements for the medium density fiber optics terminal equipment, all pigtail fiber optics cables, and internal fiber jumper (optical patch) cable shall be supplied and installed. Connectors used on pigtail fiber optics cable, and internal fiber jumper cable shall use stainless steel reinforced ceramic center ferrules (all ceramic type center ferrules on optical connectors shall not be accepted).

6.0

EQUIPMENT RACK 6.1

48TMSS06R0/AAG

General Equipment Rack Requirements 6.1.1

The medium density fiber optics terminal equipment shall be housed in a freestanding equipment rack with maximum dimensions of 2.2. meters (7 Foot) high, and with the equipment rack being designed to accommodate standard EIA (Electronic Industries Association) 19 inch wide rack mounted equipment. The equipment rack shall be designed to hold up to two (2) medium density fiber optics terminals and up to one (1) medium density fiber optics terminal supervisory terminal unit.). Both a red LED indicator (to indicate an alarm showing malfunction of the installed equipment) and a green LED indicator (to show that the equipment is provided with equipment power) shall be installed on the top front (left side) portion of the equipment rack. Both the red LED indicator, and the green LED indicator installed on the equipment rack shall be clearly visible by technicians with all equipment, and dummy equipment rack panels installed.

6.1.2

The equipment rack shall allow for both top and bottom entry of all required types of cables.

6.1.3

Accessories for each Equipment Rack shall be provided, as indicated in Section 6.3.

6.1.4

Cable retainer channels, or cable clamps/distribution rings shall be provided to retain cables routed from the terminal blocks to the Equipment, and from terminal blocks to external cabling sources.

6.1.5

Grounding shall be the same as specified in Section 5.1.4.

6.1.6

Rails, or other mounting devices shall be provided to allow for the mounting of terminal blocks, and other equipment (e.g. DC Circuit breakers) on the back of the equipment rack.

6.1.7

Exact layout of the equipment and cabling which shall be installed inside the equipment rack shall be provided by the equipment vendor for TBU review and approval prior to the delivery of the equipment.

6.1.8

The terminal equipment contained in the equipment rack shall be fully wired to allow for easy installation of additional plug-in interface modules to be


PAGE NO. 33 OF 51


48-TMSS-06, Rev. 0

provided as part of the terminal equipment and future plug-in module additions without rewiring the equipment rack.

6.2

48TMSS06R0/AAG

6.1.9

For connection of external protective relaying cabling, supplied terminal blocks (for the termination of external protective relay cabling) shall be designed for the wire gauge of the protective relay cable which shall be terminated, and also supplied terminal blocks (used for protective relay terminations) shall contain disconnectable “hinged blade” type jumpers to allow isolation of the protective relays from the medium density fiber optics terminal equipment when the hinged blade jumpers are placed in the “open” position. Additionally, for these protective relay terminal blocks, test points shall be provided on both ends of the terminal block to allow monitoring of the circuits on both ends of the terminal block. Finally, for these terminal blocks, a minimum of 1000 Volts AC RMS isolation shall be provided as part of the design of the terminal block (with the isolation rating being applicable between terminals in the terminal block, as well as between terminals and outside mounts on the terminal block).

6.1.10

Additionally, where AC wiring is required to be installed to the equipment rack and inside/on the equipment rack, this wiring shall be installed in rigid steel conduit, conforming to the latest requirements of NFPA 70 (U. S. National Electric Code).

Main Equipment Rack Frame Requirements 6.2.1

The main equipment frame of the medium density fiber optics terminal equipment rack shall be of sturdy construction. The main equipment frame of the rack shall be made of sturdy rolled steel or rolled aluminum provided with a corrosion resistant coating, with all edges being rounded (no sharp edges). All corners shall be strengthened through welded reinforced members.

6.2.2

The color of the final paint finish shall be baked telephone gray enamel (or other TBU approved equal), which is similar to the paint finish of the existing medium density fiber optics terminal equipment racks located in TBU facilities.

6.2.3

The main equipment frame shall be designed for the loading requirements to at least support the installation of the following equipment on the equipment rack: a.

Up to two (2) medium density fiber optics terminals with a maximum weight (per terminal) of 15 kilograms each

b.

Up to one (1) medium density fiber optics remote supervisory terminal with a maximum weight (per supervisory terminal) of 10 kilograms each

c.

Accessories to be mounted on the equipment rack with a maximum combined total weight of 20 Kilograms.


PAGE NO. 34 OF 51


6.3

48-TMSS-06, Rev. 0

Installed Accessories inside Equipment Rack With each equipment rack installation of medium density fiber optics terminal equipment, there shall be provided/installed accessories, which include MDF/IDF terminal blocks, internal grounding bus bar, electrical (DC and AC) circuit breakers, AC convenience receptacles, optical cable requirements and clear plexiglass. A description of each follows. 6.3.1

MDF/IDF Terminal Blocks Each medium density fiber optics equipment rack shall be equipped with MDF/IDF Blocks (Krone LSA Plus, or equal), with the minimum quantity of MDF/IDF blocks to be included in the equipment rack as specified in Section 7.0. In case manufacturer’s medium density fiber optic terminal design cannot accommodate IDF/MDF inside the equipment rack, external IDF/MDF shall be provided and installed.

6.3.2

Internal Grounding Bus Bar Each medium density fiber optics equipment rack shall be provided and equipped with an internal grounding bus bar, which shall provide for a common grounding connection for the installed equipment on the equipment rack, as well as a centralized tie point for the incoming external telecommunications equipment grounding cable which shall enter the equipment rack.

6.3.3

Electrical (DC and AC) Circuit Breakers and AC Convenience Receptacles a.

48TMSS06R0/AAG

Individual input DC and AC circuit breakers shall be provided in the terminal equipment racks to provide power for the following equipment units installed in the equipment rack (with a minimum of One (1) each DC circuit breaker per equipment unit, unless otherwise indicated below): i.

Installed medium density fiber optics terminals (a minimum of two DC circuit breakers for each installed medium density fiber optics terminal)

ii.

Installed medium density fiber optics terminal supervisory equipment (a minimum of one (1) DC circuit breaker per Supervisory Equipment Terminal).

iii.

External alarm indicators

iv.

Additional accessories/equipment shelves

v.

Two (2) additional DC circuit breakers per cabinet (10 ampere rating to allow for connection of DC supply for future equipment installations).


PAGE NO. 35 OF 51


6.3.4

48-TMSS-06, Rev. 0

b.

Each DC circuit breaker shall have auxiliary integrated alarm (dry) contacts, which shall provide an alarm indication of a breaker trip, or breaker off condition, and be sized to accommodate both the normal DC load of the equipment, as well as the inrush current for the equipment when the equipment is first turned on.

c.

Also, as part of the medium density fiber optics equipment rack, one (1) duplex AC convenience receptacle shall be installed, with the configuration of the duplex AC convenience receptacle being provided as per the requirements of the latest edition of NFPA-70.

Optical Cabling Requirements As part of the optical cabling requirements for the medium density fiber optics terminal equipment, all pigtail fiber optics cables, and internal fiber jumper (Optical Patch) cable shall be supplied and installed. Connectors used on pigtail fiber optics cable, and internal Fiber jumper cable shall used stainless steel reinforced ceramic center ferrules (All ceramic type center ferrules on optical connectors shall not be accepted).

6.3.5

Clear Plexiglas Cover In all locations where there is exposed high voltage DC cabling (e.g. voltages above 120 volts) and exposed terminal blocks, the exposed cables/terminals shall be covered with a clear plexiglas shield which shall protect technician personnel from accidental contact with the high DC voltages. The thickness of the clear Plexiglas shield shall be at least 1 centimeter thick. Additionally, the shield shall be provided with mounts to allow technician personnel to remove the clear Plexiglas guard shield for maintenance purposes. Additionally, the clear Plexiglas shield shall be provided with a cover label (minimum 10 cm by 20 cm in size) stating “Danger- ___ Volts (with the voltage value filled in on the cover label to warn technicians of the high voltage appearing on the terminal blocks on the equipment rack.

7.0

COMMON MDF/IDF REQUIREMENTS 7.1

For connection to external communications cabling (which shall be routed from the external MDF to the Fiber Optics Terminal Equipment panel), each equipment cabinet or equipment rack shall be equipped with internal MDF/IDF terminals (or external MDF/IDF as the case may require), complying with the Krone LSA-Plus Modular system (or TBU approved equal).

7.2

Prior to equipment delivery, the supplier of the medium density fiber optic terminal equipment shall propose the type of internal and external wiring scheme for TBU review and approval, and incorporate the applicable TBU comments for wiring the equipment MDF/IDF Blocks.

7.3

For each fiber optics terminal installed in the equipment cabinet or equipment rack, the following shall be provided and installed as shown on Table # 7 below:

48TMSS06R0/AAG


PAGE NO. 36 OF 51


48-TMSS-06, Rev. 0

Table 7- Krone LSA Plus Modular MDF Block Material Requirements per Installed Medium Density Fiber Optics Terminal Serial No. 1 2 3 4 5

6

7

8

Material Description 10 Pair Hinged Label Holders (With Labels) - Krone Part No. 6089/2/015/01 5 Point Protection Module - Krone Part No. 5909/1/063/00 1 Pair Red Marking Caps 1 Pair Disconnection Plug (Black) 1 Pair Dummy Plug (Red) 10 Pair Disconnection Module (Cream) with Earthing Rail 2/10- Krone Part Nos. 6089/1/810/00 (for Disconnection Module) and 5909/3/041/00 (for Earthing Rail)

10 Pair Disconnection Module (Cream) Krone Part No. 6089/1/810/00 See Note 1 to Tables 7 and 8 Group Label Holder and labels for labeling each 100 pair terminal blocks

Quantity 10 Each 40 Each 10 Each 5 Each 10 Each 10 Each-Krone P/N 6089/1/810/00 10 Each-Krone P/N 5909/3/041/00 As required (see Note 1 to Tables 7 and 8) One (1) each Per 100 Pair terminal blocks

Table 8- Krone LSA Plus Modular MDF Block Material Requirements per Medium Density Fiber Optics Equipment Cabinet or Equipment Rack. Serial No. 1 2 3

4

5

Material Description 4 Pole Test Cords-Krone Part No. 6624/2/531/00 2 Pole Test Cords- Krone Part No. 6624/2/061/00 Krone Inserter Wire 2A (Krone Part Number 6417/2/055/01) Backmount Frame to accommodate all Krone LSA-Plus Terminal Blocks (Disconnection Modules) and Label Holders as installed in the Medium Density Fiber Optics Terminal All other materials required to complete the installation of the Krone LSA Plus Modular System blocks inside the Medium Density Fiber Optics Terminal Equipment Cabinet

48TMSS06R0/AAG


Quantity 2 Each 2 Each 1 Each As Required

1 Lot

PAGE NO. 37 OF 51


48-TMSS-06, Rev. 0

Notes to tables 7 & 8:

8.0

I.

In cases where the medium density fiber optics terminal equipment is equipped with, and terminates a maximum of thirty (30) VF (Voice Frequency) channels, and terminates no data channels, then the equipment vendor shall provide ten (10) Each Krone disconnection modules facing the medium density fiber optics terminal equipment. . However, if the medium density fiber optics terminal equipment is equipped with greater than 30 VF Channels or equipped with mixed Digital Data Channel/Voice Channel Units, additional Krone MDF disconnection modules shall be required to be supplied by the equipment vendor to meet all the termination requirements of installed voice and data circuits. Quantities of Krone MDF disconnection modules, and wiring of the disconnection modules shall be proposed by the equipment vendor for TBU review and approval prior to equipment delivery.

II.

The Krone LSA plus disconnection modules with earthing rails shall be used for the installation of the 5 point solid state protector modules, and shall support the termination of external tie, and external interconnecting cables to the medium density fiber optics terminal equipment. The Krone LSA plus disconnection modules without earthing rails shall support the termination of VF (Voice Frequency) and data cabling from the medium density fiber optics terminal equipment.

TESTS All test results shall be provided for review and acceptance by TBU. 8.1

8.2

Type Test Report Requirements 8.1.1

All type (design) tests prescribed in the relevant ANSI, IEC, ITU-T Standards to which the material is being supplied shall be performed on the representative unit or on the first unit of every new design or rating to be supplied to TBU.

8.1.2

In lieu of the actual type (design) tests, certified test reports of type (design) tests performed on an identical unit may be submitted to TBU for review and approval during the bidding stage.

Routine (Production) Tests All routine (production) tests prescribed in the relevant ANSI, IEC, ITU-T Standards to which the material is being supplied shall be performed on all units prior to delivery to TBU. The test shall include, but not be limited to the following: 8.2.1

Physical/Mechanical Inspection The following shall be performed for the medium density fiber optics terminal equipment: a.

48TMSS06R0/AAG

Verification that all material specified by TBU are provided as part of the medium density fiber optic terminal equipment installation. This shall include all basic equipment modules, equipment shelves, cabling/connectors, interface modules, equipment cabinets/racks, circuit Date of Approval: August 21, 2006

PAGE NO. 38 OF 51


48-TMSS-06, Rev. 0

breakers, and cable end connectors, and other miscellaneous parts and accessories.

8.2.2

b.

Verification of all grounding connection to equipment cabinets/equipment racks, equipment cabinet swing frames, equipment cabinet front doors, and side panels.

c.

Verification of all equipment labeling/tagging installed in the medium density fiber optics terminal equipment, which is consistent with Equipment Vendors Drawings, and other requirements as specified in the related Project Scope of Work and Technical Specification, or Materials Purchase Order (as applicable).

Digital Loopback Tests This test shall involve performance of a digital loopback test at the STM-1 digital level to confirm that all portions of the equipment up to the input of the optical transmitter/receivers are operating properly. Alarm indications on the terminal (and where required, on the local (portable) craft terminal) shall be monitored for proper operation.

8.2.3

Optical Loopback Tests This test shall confirm operation of all optical transmitters/receivers installed in each terminal. The test shall be performed by looping the output of each optical transmitter/receiver, with its corresponding input (through a variable optical attenuator unit which can attenuate through the entire operating range of the optical receiver of the terminal equipment). This test shall be able to measure the following parameters of each optical transmitter/receiver:

48TMSS06R0/AAG

a.

Optical output power test (for each output power option available for the medium density fiber optic equipment). Optical output power shall be measured prior to performing the actual optical loopback function.

b.

Optical receiver dynamic range and sensitivity (for the entire operating range of the optical receiver contained in each optical transmitter/receiver).

c.

Main/Standby switching function test- This test shall confirm that switching shall occur from the main optical transmitter/receiver to the standby optical transmitter receiver in the event of an optical transmitter/receiver failure, or failure of an optical fiber cable.


PAGE NO. 39 OF 51


8.2.4

48-TMSS-06, Rev. 0

Verification of all Alarm conditions for each Medium Density Fiber Optics Terminal This shall be confirmed through initiation of all alarm conditions which are possible on each medium density fiber optic terminal, and confirming that each alarm condition is reported on the applicable alarm device (LED indicator, or portable local craft terminal, or both, depending on the medium density fiber optic terminal equipment manufacturer's design of the equipment). Also, as part of this test, the operation of any external alarm indicators/alarm relays shall be confirmed for proper operation.

8.2.5

Verification of Power Supplies As part of this test, measurement of all power supply input and output voltages on each power supply module(centralized version), or power supply submodule (decentralized version) shall be performed.

8.2.6

8.2.7

Verification of Wiring of Unused Slots/Shelves a.

This test shall be performed by installation of an appropriate plug-in interface module selected by TBU, and confirming that an appropriate signal shall appear on the output of the selected interface module when the terminal is either in digital, or in optical loopback mode. This test shall be repeated for all unused slots/shelves in each medium density fiber optic terminal by moving the test interface module to all slots/shelves in the equipment.

b.

However, alternative Manufacturer/Equipment Vendor proposals may be considered for verification of wiring of unused slots/shelves in which case TBU shall approve these proposals prior to the start of actual factory testing.

Testing of Digital Protection Interface Module These tests can either be performed on a “stand-alone” basis, or “end to end” test basis, depending on the manufacturers recommended test procedure. If the Equipment Vendor/Equipment Manufacturer chooses to use the “stand-alone” basis option, then the medium density fiber optics terminal shall be in a local optical loopback mode to simulate an “end to end” test condition. In general, testing of the digital protection interface module shall involve the following (for all Digital Protection Interface Modules specified to be supplied/installed): a.

48TMSS06R0/AAG

For Version 1 digital protection interface (using direct connection between medium density fiber optics terminal equipment and protection relay equipment), and version 3 (external protective relay signaling units)


PAGE NO. 40 OF 51


i.

48-TMSS-06, Rev. 0

Command Transmission and Transit Time Test This test shall be performed by use of suitable protective relay simulation hardware, where the simulation hardware shall send a command signal (of the same polarity, waveform, and voltage as sent by the protective relaying equipment which will eventually be interconnected to the equipment) through the digital protection interface module of the medium density fiber optic terminal equipment. For testing procedures which use End-to-End testing, this test shall confirm that the generated command is received at the remote end of the medium density fiber optic link, verifying operation of the digital protection interface module, and general operation of the medium density fiber optic link. For “stand-alone” testing, this shall be confirmed by performance of a local loopback on the equipment. Additionally, as part of the test, transit time shall be measured for the command transmission through the medium density fiber optic terminal equipment (including the digital protection interface modules). All command inputs/outputs shall be measured for the command transmission and transit time test.

ii.

Command Prolongation Test This test shall confirm the minimum, time value, maximum time value, and final programmed value (as specified by TBU) for the command prolongation (command extension) function which is programmed for digital protection interface modules. All command inputs/outputs shall be measured for the command prolongation test.

iii. Alarm Operation Test This test shall simulate the malfunction of the digital protection interface module, and shall determine (on the malfunction of the module) that appropriate alarm indicators are reported on the applicable alarm device (LED) indicator, or portable local craft terminal, or both, (depending on the equipment manufacturer's design of his equipment), and are generated to the equipment remote supervisory terminal. b.

For Version 2 digital protection interface (using connection between external protection signaling equipment and medium density fiber optics terminal equipment) for ITU-T G.703 (64Kbps) digital protection interface i.

48TMSS06R0/AAG

Verification of level and impedance settings-


PAGE NO. 41 OF 51


48-TMSS-06, Rev. 0

For this interface, the first step in testing shall be to verify signal levels and impedance settings to insure full compatibility with the external protection signaling equipment, and ITU-T G. 703 requirements. For verification of level settings, a digital storage oscilloscope shall be used to confirm that the signal waveform meets, or exceeds ITU-T G.703 requirements for 64Kbps codirectional signal. ii.

Performance of Bit Error Rate Testing For this requirement, a bit error rate test using a pattern and duration as recommended by the protection signaling equipment manufacturer shall be performed. The maximum bit error rate as seen by this test shall be the maximum BER which is allowable by the protection signaling equipment manufacturer to assure error free and 100 percent available operation of the external protection signaling equipment.

8.2.8

Testing of 2/4 Wire E&M Interface Modules In general, testing of the 2/4Wire E&M Interface Module shall involve the following for all 2/4Wire E&M Interface Modules specified to be supplied/installed: a.

Frequency Response Test. This test shall involve injection of frequencies from 300Hz to 3400Hz at 200Hz increments, with measurement of the output signal. The injected signal shall be at the VF nominal(Test Tone) level set for the module. This test shall be carried out by performing optical loopback.

b.

Signal Linearity Test. This test shall confirm the medium density fiber optic equipment manufacturer's specifications for signal linearity, by use of the equipment manufacturer's recommended frequency (to use for the signal linearity test), and range for the signal linearity measurement. Minimum increments of 5dB shall be used for the measurement of this parameter (from the terminal equipment's lower specified signal linearity parameter, to the upper specified signal linearity parameter). This test shall be carried out by performing optical loopback.

c.

E and M Function Tests This test shall confirm the operation of all E and M functions for the 2/4Wire E&M interface module which are specified by the medium density fiber optic equipment manufacturer. As part of this test, both the operation of Type I E and M signaling (Battery or Ground appearing on the M-Lead Input) and Type V signaling (Open or Ground appearing on the M-Lead Input) shall be confirmed.

48TMSS06R0/AAG


PAGE NO. 42 OF 51


d.

48-TMSS-06, Rev. 0

Signal to Total Distortion Ratio This test shall be performed using a PCM channel analyzer to confirm the medium density fiber optic equipment manufacturer's specifications for signal to total distortion ratio. signal to total distortion ratio shall be provided for 1020Hz frequency at 0dBm0, -20dBm0, -30dBm0, 40dBm, and -45dBm0 signal levels.

8.2.9

Testing of Subscriber Interface (FXO/FXS) Modules Testing of the subscriber interface module shall involve the following for all subscriber interface modules specified to be supplied: a.

Basic VF Function Tests The frequency response, signal linearity, idle noise, and crosstalk tests shall be performed for VF function tests. For details, refer to the tests indicated under the 2/4 E&M interface module testing requirements.

b.

Ringing Detector Operation Test This test shall involve the generation (by external test equipment) of a 20Hz ringing frequency at 30 Volts RMS, and a 20 Hz ringing signal at 90 Volts AC RMS to determine the satisfactory operation of the ringing detector contained as part of the subscriber interface (FXO) module. Upon the receipt of the ringing frequency, the remote subscriber ringer shall be activated.

c.

Ringing Generator Operation Test This test shall involve the proper operation of the ringing generator voltage supply at the FXS end of the medium density fiber optic terminal equipment (all ringing voltage and ringing frequency options designed in the equipment manufacturer's terminal equipment). As part of the test, both ringing voltage and ringing frequency at 20 Hz operation shall be measured.

d.

Telephone Operation Test For the Telephone Operation Test, verification tests shall be performed to determine proper "off-hook" and "on-hook" operation of the Subscriber Interface Modules, either through connection to an external telephone circuit, or through simulation with an external test set, which shall emulate the operation of an external telephone circuit.

e.

Ringback Tone Test (FXS Version Only) For this test, ringback tone shall be verified by the end subscriber going “off-hook”, and determing if a ringback tone exists at the subscribed oral.

48TMSS06R0/AAG


PAGE NO. 43 OF 51


8.2.10

48-TMSS-06, Rev. 0

Testing of Orderwire Interface Modules In general, testing of the orderwire interface module shall involve the following (for all orderwire interface modules specified to be supplied/installed ): a.

Basic VF Function TestsThe frequency response, and idle noise tests shall be performed for VF function tests. Refer to the previous description of these tests (indicated under the Section 8.2.8 - 2/4Wire E/M Interface Module Testing requirements) for further detail.

b.

Ringing Generator Operation Test This test shall verify the proper operation of the ringing generator voltage supply of all orderwire interface modules equipped with a ringing generator function (all ringing voltage and ringing frequency options designed in the equipment manufacturer's medium density fiber optic terminal equipment).

c.

Ringback Tone Test See ringback tone test for FXS interface under section 8.2.9

8.2.11

Testing of Contact Closure Interface Modules In general, testing of the contact closure interface module shall involve the following (for all contact closure interface modules specified to be supplied/installed): a.

Contact Closure Input Test For this test, all voltage input options for each contact closure module shall be tested for proper operation (the number of voltage input options shall depend on the equipment manufacturer's design of the Equipment). For this test, all inputs shall be tested on each contact closure interface module, with the test performed on each end of the medium density fiber optic link.

b.

Operation of Contact Closure Outputs For this test, all contact closure outputs shall be tested for proper contact opening and contact closing operation (this shall be performed through providing the required contact closure input signal at the remote end of the medium density fiber optic link). This test shall also be performed on each end of the medium density fiber optic link.

48TMSS06R0/AAG


PAGE NO. 44 OF 51


8.2.12

48-TMSS-06, Rev. 0

Testing of Low Speed Data Interface Modules In general, testing of the low speed data interface module shall involve the following Bit Error Rate Test (for all Low Speed Data Interface Modules specified to be supplied/installed):

8.2.13

a.

The bit error rate test shall be performed for each data transmission rate option (as determined by the medium density fiber optic equipment manufacturer's design) available with the low speed data interface module.

b.

The bit error rate test shall be performed using a digital bit error rate tester at the remote end of the data transmission link, using a random Data (PRBS, or suitable TBU approved equivalent) pattern, with a minimum of one million Data Bits transmitted for each test. For this test, the bit error rate shall be less than 1 bit in error for every 1 million bits transmitted.

c.

Additionally, as part of this test, all data ports on the low speed data interface module shall be tested, and verified for proper operation at both ends of each link. The test shall be for a duration of 24 hours for one randomly selected channel and for 15 minutes for the remaining channels.

Testing of V.35 Data Interface Modules In general, testing of the V.35 interface module shall involve the following Bit Error Rate Test (for all V.35 interface modules specified to be supplied/installed):

8.2.14

48TMSS06R0/AAG

a.

The bit error rate test shall be performed for two TBU selected data transmission rate options (as determined by the medium density fiber optic equipment manufacturer's design) which are available with the V.35 interface module.

b.

The bit error rate test shall be performed using a digital bit error rate tester at the remote end of the data transmission link, using a random data (PRBS, or suitable TBU approved equivalent) pattern, with a minimum of one million data bits transmitted for each test. For this test, the bit error rate shall be less than 1 bit in error for every 1 million bits transmitted.

c.

Additionally, as part of this test, all data ports on the V.35 interface module shall be tested, and verified for proper operation at both ends of each link. The Test shall be for a duration of 15 minutes for all V.35 Interface Module channels.

Testing of Ethernet 10 Base T Interface Modules :


PAGE NO. 45 OF 51


48-TMSS-06, Rev. 0

In general, testing of the Ethernet 10 Base T Module shall involve the following Bit Error Rate Test (for all Ethernet 10 Base T Interface Modules specified to be supplied/installed):

8.2.15

a.

The bit error rate test shall be performed at the maximum bit rate supported by the ethernet 10 base T interface module (10Mbps). As part of the performance of this test, each end that contains an Ethernet 10 Base T Module shall be connected to a simulated Ethernet 10 Base T hub, to simulate the full characteristics of the Ethernet 10 Base T connection.

b.

The bit error rate test shall be performed using a digital bit error rate tester at the remote end of the data transmission link, using a random Data (PRBS, or suitable TBU approved equivalent) pattern, with a minimum of one million Data Bits transmitted for each test. For this test, the Bit Error Rate shall be less than one (1) bit in error for every one million bits transmitted.

c.

Additionally, as part of this test, all data ports on the ethernet 10 Base T interface module shall be tested, and verified for proper operation at both ends of each link. The test shall be for a duration of 15 minutes for all Ethernet 10 Base T interface module channels.

Testing of 64Kbps G.703 Interface Modules Refer to the testing requirements for the digital protection interface (64Kbps G.703 version) for the testing requirements for this module.

8.2.16

8.2.17

Testing of optical interfaces (both primary, and standby) contained as part of the medium density fiber optic terminal in end-to-end optical operation a.

Actual end-to-end operation of the optical interfaces shall be measured to determine the loss margin required from a link, as well as the output optical power transmit (from the transmitter output), received optical input power (at the input to the optical receiver), and overall cable losses for the optical cable.

b.

Both primary and standby optical paths shall be measured, and the minimum loss margin requirement shall be verified for both the primary, and standby optical paths.

Testing of 2Mbps G.703 Tributaries/Interface Modules, and STM-1 Tributary Interfaces In general, testing of the 2Mbps tributary interface module, and STM-1 tributary interface module shall involve the following bit error rate test (for all interface modules specified to be supplied/installed): a.

48TMSS06R0/AAG

The bit error rate test shall be performed at the maximum bit rate supported by the module (2Mbps for the 2Mbps tributary interface, and 155Mbps for the STM-1 interface module). The bit error rate test shall Date of Approval: August 21, 2006

PAGE NO. 46 OF 51


48-TMSS-06, Rev. 0

be performed using a digital bit error rate tester at the remote end of the data transmission link, using a random data (PRBS, or suitable TBU approved equivalent) pattern, with a minimum of one million data bits transmitted for each test. For this test, the bit error rate shall be less than 1 bit in error for every 1 million bits transmitted.

9.0

b.

Additionally, as part of this test, all data ports on each interface module shall be tested, and verified for proper operation at both ends of each link. The Test shall be for duration of 15 minutes for all interface module channels.

c.

For the STM-1 tributary interface, as this shall be an optical interface for the medium density fiber optics terminal, this test (for bit error rate) can be performed by performance of an optical loopback on the STM-1 optical level, and performing the bit error rate test (using a PRBS pattern) on a randomly selected sample of least 50 percent of the 2Mbps tributary time slots comprising the 155Mbps (STM-1) bit stream. In the case of STM-1 tributary testing, each 2Mbps tributary slot used for the STM-1 tributary testing (which shall be randomly selected) shall be tested for a minimum of two minutes.

PACKING REQUIREMENTS In addition to the requirements of 01-TMSS-01, the following packing and shipping instructions are applicable:

10.0

9.1

Where air shipment is used for the equipment, export packing and shipping shall be adequate for air transport and handling up to the site in Saudi Arabia.

9.2

Wooden crates shall be used, and constructed crates shall allow for adequate ventilation of internal equipment, so as not to sustain damage to the packed equipment in periods of outdoor exposure to temperature and humidity in the environmental conditions specified in 01-TMSS-01.

9.3

In addition to the requirements specified in 01-TMSS-01 for marking of the containers, the manufacturer’s packing list and description of the content shall, as a minimum, contain information on the model number, serial number, and catalog number (if different from the model number) of the medium density fiber optics terminal equipment and other accessories which are contained in the crate

DOCUMENTATION REQUIREMENTS Unless otherwise specified in the TBU project Scope of Work and Technical Specifications or Material Purchase orders, the following shall be supplied with each medium density fiber optics terminal: 10.1

One (1) copy in paper format of the Operation and Maintenance manual

10.2

One (1) copy in electronic form (in CD-ROM Diskette) of the operation and maintenance manual, related drawings, factory tests and other data associated with

48TMSS06R0/AAG


PAGE NO. 47 OF 51


48-TMSS-06, Rev. 0

the equipment. Electronic format of this should be in Adobe Acrobat PDF format readable by Adobe Acrobat 4.0, or Microsoft Office suite of software (Microsoft Word 2000 and Microsoft Excel 2000). 10.3

One (1) copy of the factory documentation test documentation for the specific test documentation for the specific medium density fiber optics terminal (to be included with the equipment).

10.4

One (1) copy of the configuration information (hard copy) to be included with each medium density fiber optics terminal.

48TMSS06R0/AAG


PAGE NO. 48 OF 51


48-TMSS-06, Rev. 0

7.0 DATA SCHEDULE MEDIUM DENSITY FIBER OPTICS TERMINAL EQUIPMENT SEC Enquiry No.

Date:

SEC Purchase Order No. or Contract No.

Date:

SEC PTS No./Project Title with J.O. No. REFERENCE SECTION NO.

3.0

DESCRIPTION

'A'

'B'

'C'

APPLICABLE CODES AND STANDARDS *

4.0

DESIGN AND CONSTRUCTION REQUIREMENTS

4.1

General Type/Model/Brand

*

Detailed specifications attached for Medium Density Fiber Optics Terminal Equipment

*

4.2.1

Minimum environmental conditions for operation

As per 01TMSS-01

4.2.6

Optical Input/Output Wavelength

*

Type of Optical Transmitter

*

4.2.15 Type of Alarm Unit used to Transmit alarms

*

'A' 'B'

- TBU SPECIFIED DATA/PARAMETERS - BIDDER/SUPPLIER/VENDOR/CONTRACTOR PROPOSED DATA/ PARAMETERS 'C' - REMARKS SUPPORTING THE PROPOSED DEVIATION IN COLUMN 'B' (*) - DATA/PARAMETER TO BE PROVIDED/PROPOSED BY THE BIDDER/SUPPLIER/ VENDOR/CONTRACTOR IN COLUMN 'B'

48TMSS06R0/AAG


PAGE NO. 49 OF 51


48-TMSS-06, Rev. 0

7.0 DATA SCHEDULE MEDIUM DENSITY FIBER OPTICS TERMINAL EQUIPMENT REFERENCE SECTION NO. 4.4.2

4.5.3

DESCRIPTION

Type of Power Supply Modules: Centralized/Decentralized

'A'

'C'

*

External DC to DC Converters required

Yes/No

If External DC to DC Converters is used, name & country of Manufacture

*

2Mbps Tributary Interfaces required

'B'

Yes/No

STM-1 Tributary/Aggregate Interfaces required to interface with higher level SDH (STM-4) equipment 4.8

4.18

Digital Protection Interface type (Version 1) or (Version 3) (Details shall be attached)

Ver.1 /Ver. 3

Local Craft Terminal required to program/configure equipment

Yes/No

If required, name of manufacturer and model number of Personal Computer Equipment used for Local Craft Terminal (and provide brochures) 4.18.2 Vendor Specific Network Management Terminal. (Details shall be attached)

48TMSS06R0/AAG

*

*


PAGE NO. 50 OF 51


48-TMSS-06, Rev. 0

7.0 DATA SCHEDULE MEDIUM DENSITY FIBER OPTICS TERMINAL EQUIPMENT A.

ADDITIONAL TECHNICAL INFORMATION OR FEATURES TO BE FURNISHED BY SEC:

B.

ADDITIONAL SUPPLEMENTARY DATA OR BIDDER/VENDOR/SUPPLIER/CONTRACTOR:

B.

OTHER PARTICULARS TO BE FILLED UP BY BIDDER/VENDOR/SUPPLIER/ CONTRACTOR:

FEATURES

Actual Manufacturer of Equipment/Material

PROPOSED

BY

Vendor/Supplier/ Contractor

Name of the Company Location and address

Name and Signature of authorized epresentative and date

Official Seal/Stamp of the Company & Date

48TMSS06R0/AAG


PAGE NO. 51 OF 51

48-TMSS-06-R0

Recommend Documents