T HR TE 21001 ST Telecommunications Equipment …ST Telecommunications Equipment Rooms T HR TE 21001 ST Standard Version 1.0 Issued Date: 17 March 2014 Effective Date: 17 March 2014

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Telecommunications Equipment Rooms

T HR TE 21001 ST

Standard

Version 1.0 Issued Date: 17 March 2014 Effective Date: 17 March 2014

Important Warning

This document is one of a set of standards developed solely and specifically for use on the rail network owned or managed by the NSW Government and its agencies. It is not suitable for any other purpose. You must not use or adapt it or rely upon it in any way unless you are authorised in writing to do so by a relevant NSW Government agency.

If this document forms part of a contract with, or is a condition of approval by, a NSW Government agency, use of the document is subject to the terms of the contract or approval.

This document may not be current. Current standards are available for download from the Asset Standards Authority website at www.asa.transport.nsw.gov.au.

© State of NSW through Transport for NSW

http://www.asa.transport.nsw.gov.au/

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Telecommunications Equipment Rooms Version 1.0

Effective Date: 17 March 2014


Standard Approval Owner: T. Payne, Lead Telecommunications Engineer Authorised by: D. Spiteri, Chief Engineer Approved by: G. Bradshaw, Principal Manager Network Standards and Services on behalf of the

Asset Standards Authority Configuration Control Board

Document Control Version Summary of Change 1.0 Initial release

For queries regarding this document

[email protected]

www.asa.transport.nsw.gov.au

mailto:[email protected]

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© State of NSW through Transport for NSW Page 3 of 19

Preface The Asset Standards Authority (ASA) develops, controls, maintains, and publishes standards

and documentation for transport assets for New South Wales, using expertise from the

engineering functions of the ASA and industry.

The Asset Standards Authority publications include the network and asset standards for NSW

Rail Assets. Currently ASA publications include RailCorp engineering standards that were

applicable to the Transport for New South Wales (TfNSW) rail assets as at 30 June 2013.

This standard supersedes RailCorp standard ESM 107 Telecommunications Equipment Rooms

and is a first issue by the Asset Standards Authority. The changes to previous content in

ESM 107 include the following:

replacement of RailCorp organisation roles and processes with those applicable to the

current ASA organisational context

minor amendments and clarification to content

conversion of the standard to ASA format and style

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Table of contents

1. Introduction .......................................................................................................................................6

2. Purpose ..............................................................................................................................................6

2.1 Scope..................................................................................................................................................6 2.2 Application.........................................................................................................................................6

3. Version history ..................................................................................................................................7

4. References .........................................................................................................................................7

5. Terms and definitions.......................................................................................................................8

6. General ...............................................................................................................................................9

7. Design report requirements .............................................................................................................9

8. Categories..........................................................................................................................................9

9. Dimensioning of the communications room................................................................................10

10. Dimensioning of ac and dc distribution boards ..........................................................................10

10.1 AC distribution ................................................................................................................................10 10.2 DC distribution ................................................................................................................................11

11. Construction ....................................................................................................................................11

11.1 Building code...................................................................................................................................11 11.2 Freestanding telecommunications buildings...............................................................................11 11.3 Building wall / floor .........................................................................................................................12 11.4 Dust and floor paint ........................................................................................................................12 11.5 Room security .................................................................................................................................12 11.6 Lighting ............................................................................................................................................12 11.7 Rodent proofing ..............................................................................................................................12

12. Location restrictions.......................................................................................................................13

12.1 EPR zone..........................................................................................................................................13 12.2 Catch points.....................................................................................................................................13 12.3 Flood levels......................................................................................................................................13 12.4 Locating underground station telecommunications equipment rooms at ground

level ..................................................................................................................................................13

13. Access..............................................................................................................................................13

13.1 Access times ...................................................................................................................................13 13.2 Vehicular access .............................................................................................................................13 13.3 Personnel access............................................................................................................................14

14. Environment ....................................................................................................................................14

15. Fire protection .................................................................................................................................14

16. Amenities .........................................................................................................................................15

17. Security ............................................................................................................................................15

17.1 Locks ................................................................................................................................................15 17.2 Electronic security systems...........................................................................................................15

18. Earthing............................................................................................................................................15

19. Rack layout and construction........................................................................................................16

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19.1 Minimum working space ................................................................................................................16 19.2 Clearance and pathways ................................................................................................................16 19.3 Equipment suites beyond 6000 mm..............................................................................................16

20. Cables...............................................................................................................................................17

20.1 Cable entry.......................................................................................................................................17 20.2 Cable.................................................................................................................................................18

21. Main distribution frame verticals (and copper cable terminations)...........................................18

22. Equipment decommissioning and removal..................................................................................19

23. Third party access...........................................................................................................................19

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1. Introduction

Telecommunications equipment rooms are required to house both the current and future

telecommunications requirements of the TfNSW rail network. New construction, extensions and

upgrades of existing telecommunications equipment rooms, or installation within a building

space, need to conform to a standard. This document defines the standard for these facilities.

2. Purpose

The purpose of this document is to provide a standard for the design and construction of TfNSW

rail telecommunications equipment rooms.

2.1 Scope

The scope of this document is:

to define the standard for the various categories of telecommunications equipment rooms

to set the diversity requirements for telecommunications equipment rooms

to provide a detailed link to all updated standards associated with telecommunications

equipment rooms

to provide access / security standard

to provide the facilities for asset management / renewals

2.2 Application

All new railway stations shall be provided with a telecommunications equipment room in

accordance with this standard. Such a room need not be on the platform or within the structure

of other station buildings, but shall be as closely as practicable associated with the station.

This is in addition to any station services equipment room and carrier room provided for that

station. A new telecommunications equipment room may not be required in some

circumstances if there is an existing telecommunications equipment room within 500 m from the

proposed new rail train station facility. This is subject to the approval of the Lead Engineer

Telecommunications that the existing equipment room meets all the conditions of the above

scope.

All upgrade works on new or existing telecommunications equipment rooms shall be in

accordance with this standard.

Certain clauses of this standard apply to the ongoing management of telecommunications

equipment rooms.

This standard does not apply to rooms dedicated to station services equipment such as public

address, help point, CCTV systems or public carrier equipment rooms and facilities.

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Building construction shall be in accordance with Australian Building Codes Board, National

Construction Code Series 2012 which shall take precedence over the requirements of this

Standard.

All electrical works shall be in accordance with AS/NZS 3000 Electrical installations (Wiring

Rules) which shall take precedence over the requirements of this Standard.

Telecommunications cabling shall be in accordance with AS/ACIF S009 Installation

requirements for customer cabling (Wiring Rules) which shall take precedence over this

standard.

3. Version history

Initial release.

4. References

Australian and International Standards

AS/ACIF S0008 Requirements for customer cabling products

AS/ACIF S0009 Installation requirements for customer cabling (Wiring Rules)

AS 2201 Intruder Alarm Systems

AS2293 Emergency escape lighting and exit signs

AS 2444 Portable fire extinguishers and fire blankets – Selection and location

AS/NZS 3000 Electrical installations (known as Australian/New Zealand Wiring Rules)

AS/NZS 3015 Electrical installations – Extra-low voltage d.c. power supplies and service

earthing within public telecommunications networks

AS/NZS 3835 Earth Potential Rise – Protection of Telecommunications network users,

personnel and plant – Code of practice

Building Code of Australia. Volumes One and Two. Building Code of Australia Board HB 29-

2007/Amdt 1-2010 Communications cabling manual - Module 2: Communications cabling

handbook

Transport standards as published on the ASA website

EP 12 10 00 20 SP Low Voltage Distribution Earthing

EP 12 10 00 22 SP Buildings and Structures Under Overhead Lines

RSS-004 Signalling and Control Room Facilities (RailCorp Security Standard)

SPC 511 Boundary Fences

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SPG 0705 Signalling Construction Specifications) Construction of Cable Routes and Associated

Civil Works

SPG 0708 Small Buildings and Location Cases

TC 00 1317 01 TR -Design Guidelines for High Availability Power Supply Systems

T HR TE 01001 ST Communications Outdoor Cabling Standard

T HR TE 21002 ST Communications Earthing and Surge Suppression Standard

5. Terms and definitions

The following definitions apply in this document:

carrier room a telecommunications equipment room for the use of public telecommunications

carriers

station services equipment room a room dedicated to station services such as the public

address system, help points, station lan, passenger information system, ticketing system, CCTV

etc

telecommunications equipment room a room or building with the primary purpose of housing

telecommunications infrastructure

ac alternating current

ACMA Australian Communications and Media Authority

AEO Authorised Engineering Organisation

ASA Asset Standards Authority

ATM asynchronous transfer mode

ATS automatic transfer switch

BD building distributor

dc direct current

DDF digital distribution frame

EPR earth potential rise

GPO general purpose 10A rated socket outlet (general purpose outlet)

HV high voltage

IDF intermediate distribution frame

IP internet protocol

LV low voltage

MDF main distribution frame

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O&M operations and maintenance

OCDN operations critical data network

PVC polyvinyl chloride

RTOC Rail Technology Operations Centre

TfNSW Transport for NSW

UPS uninterruptible power supply

6. General

Requirements of this standard must be adhered to unless noted as non-mandatory or unless

approval is gained via a request to the ASA for concession to this standard.

All works shall be ACMA compliant.

7. Design report requirements

A design report shall be produced for the design of telecommunications rooms. This design

report must address, as a minimum:

cable entry arrangements

room and equipment layout (includes proposed and future equipment racks)

ac and dc power arrangements

The design report shall be submitted for review and approval by the AEO, prior to construction.

8. Categories

Telecommunications equipment rooms shall be categorised, by the Lead Engineer

Telecommunications by way of their criticality to the TfNSW Rail telecommunications networks

as follows:

Network criticality

network core

major network edge

minor network edge

network access

The default categorisation shall be by way of TfNSW’s OCDN network categorisation of sites.

Network criticality categorisation shall also take into consideration the importance or location of

the room. (e.g. a major switching centre for radio networks is considered to be a Network Core).

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Room size

Rooms shall be further categorised as small, medium or large dependant on the floor space

within the room.

small room – a room with 12 m² or less internal floor space.

medium room – a room with more 12 m² and less than 22 m² internal floor space

large room – a room with more than 22 m² floor space.

Cable termination capacity

minor cable centre – a room where external cable terminations would not exceed 500

copper pairs or 300 fibre cores

significant cable centre – a room other than a minor cable centre

9. Dimensioning of the communications room

The dimensioning of the communications room and the building construction type (double brick,

pre-cast concrete etc) shall take into consideration all likely applications of the room over at

least the following ten years. This shall include cabling, data network, telephony, radio and

transmission requirements.

To facilitate the temporary simultaneous operation of old and new systems during the

installation, testing and commissioning phases, telecommunications equipment rooms shall also

have a minimum of two rack spaces reserved for replacement of existing equipment.

10. Dimensioning of ac and dc distribution boards

AC and dc distribution boards shall be dimensioned in accordance with the planned loads and

the physical size of the room.

10.1 AC distribution

AC distribution shall allow for:

the known load plus having adequate capacity to fully equip the room. The typical

equipment to be powered includes air conditioning, battery chargers, UPS equipment,

lighting and double GPOs. The planned ac power capacity shall be based on the

assumption that at least one double GPO of 3 A 240 V load, will be provided per

unequipped rack space, to allow for test equipment to be connected for servicing each

suite. All the double GPOs shall be installed at a minimum height of 300 mm above floor

level and they shall not be used for powering equipment.

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at core or edge sites, the main ac distribution board shall be fed from an ATS, that

automatically switches between two separate ac supplies (rail/rail or rail/council or

council/council)

This ac supply shall be 3-phase at network core and major edge sites, to allow the loads

to be balanced more effectively

provision shall be made in the ac distribution for the future connection of ac surge

suppression devices for individual circuits as required.

10.2 DC distribution

DC distribution shall allow for:

the known load and number of circuits for known or expected equipment to be installed

minimum of four circuit breaker positions per other unequipped rack space

If the room contains two or more suites (e.g. at network core and major edge sites), the dc

distribution of the room shall be provided by suite distribution sub-boards.

11. Construction

11.1 Building code

Telecommunications equipment rooms shall be built to the standards laid down in the Building

Code of Australia. They shall also conform to local council requirements.

11.2 Freestanding telecommunications buildings

Freestanding telecommunications buildings shall be built in accordance with the following

clauses of SPG 0708 Small Buildings and Location Cases:

1 General

2.1 Common Requirements -General

2.2.3 240 volt Electrical Services

2.5 Construction Aspects

2.6 Site and Site Works

3 Small Brick Buildings

Note that Battery Rooms & Air Compressor Rooms are not required

and Fire Protection is to be in accordance with Clause 14 of this

Standard.)

or

4 Pre-fabricated Concrete Bungalows (as applicable)

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In addition, note that:

Additional security fencing is only required where the site is

not already fenced to an equivalent standard.

Plumbing is not allowed in Telecommunications Equipment

Rooms, unless for a fire prevention system for that room.

11.3 Building wall / floor

The walls and floor shall be suitably strong to support cable ladders / trays and equipment

mounting, using standard masonry anchors.

The floor shall be painted with concrete sealing paint, it shall not use linoleum or vinyl tiles.

The floor loading shall include an allowance of 50% additional footprint, adjacent to the existing

or proposed power supply, with similar loading to the existing or proposed power supply.

Core sites shall be provided with computer flooring.

11.4 Dust and floor paint

The room shall be designed to minimise dust ingress. The floor paint used shall reduce dust,

avoid trip hazards, and reduce electrical hazards.

11.5 Room security

The room shall be secure and shall conform to the requirements of Section 17. All remote sites

which are located off the rail corridor shall have double skin steel door and a security grill door.

A key shall be required to lock the steel skin door. Padlocks shall not be used.

All security fencings for the rooms shall comply with SPC 511 Boundary Fences.

11.6 Lighting

Suitably bright lighting shall be provided. Adequate overhead lighting shall be installed

throughout the telecommunications equipment room to enable installation and maintenance

staff to operate without the use of extra portable lighting.

See also SPG 0708 Small Buildings and Location Cases.

11.7 Rodent proofing

Closed doors and other openings (in particular, cable entries), shall be sealed to prevent the

entry of rats, spiders and snakes.

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12. Location restrictions

12.1 EPR zone

Telecommunications equipment rooms shall not be located within an EPR hazard zone

(i.e. where the EPR may exceed 430 V ac under power system fault conditions).

12.2 Catch points

Telecommunications equipment rooms shall not be positioned where there is a possibility that

the room may be damaged by a train derailed by catch points

12.3 Flood levels

The room shall be positioned in such a manner that the floor of the room is at least 100 mm

above the 1 in 100 year flood level.

12.4 Locating underground station telecommunications equipment rooms at ground level

Due to the high risk of dust contamination at platform or track levels, all new

telecommunications equipment rooms in underground stations shall be positioned to ground

level.

As train brake dust finds its way into everything, where there is an opportunity, and where it is

feasible, existing platform or track level telecommunications equipment rooms at underground

stations shall be re-located.

13. Access

13.1 Access times

Telecommunications equipment rooms shall be located to allow twenty-four hour a day seven

days a week (24 x 7) access for both personnel and vehicles.

13.2 Vehicular access

Vehicular access is required to all freestanding communications buildings. Where necessary, a

suitable low maintenance access road shall be designed by an AEO and built to the relevant

transport standards. Such access shall not require the crossing of railway tracks at other than

approved level crossings.

Sufficient space is to be provided within the compound for parking and turning a vehicle, and

unloading of equipment.

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13.3 Personnel access

External doors to buildings shall open outwards onto a safe, level surface. There shall be a

concrete landing outside the door.

Where the telecommunications equipment room is in close proximity to the track, a fixed fence

or handrail must be installed to prevent accidental stepping into the danger zone.

Wherever practicable, sites are to be situated so that entry to the rail corridor is not necessary.

For example, sites should be fenced with the gate opening to outside the rail corridor.

Permanent lighting is to be provided for walk ways unless deemed unnecessary via a request to

the ASA for concession to this standard due to the nature of the environment and terrain.

Access shall not require the crossing of railway tracks at other than approved level crossings.

14. Environment

Room environment (with active equipment) shall be maintained between 18 °C and 24 °C and

between 30% and 55% relative humility. The building construction shall minimise the need for

air conditioning to meet this requirement. All new buildings or building extensions shall

incorporate double roofs with ventilation for heat dissipation, and other features, such as sun-

shields, to reduce the need for air-conditioning, in the architectural design / construction.

15. Fire protection

All sites shall have fire protection, in the form of approved fire monitoring and alarm facilities,

which shall be in accordance with any relevant requirements of the Building Code of Australia.

The protection for each site must be individually approved by the AEO.

Portable fire extinguishers shall be selected and installed in accordance with the requirements

of AS 2444 Portable fire extinguishers and fire blankets – Selection and location.

Illuminated emergency exit signage to Standard AS2293 Emergency escape lighting and exit

signs shall be provided where required by the Building Code of Australia and in all rooms with

greater than 20 m² floor area.

Generally gas fire suppression systems are not required in telecommunications equipment

rooms.

Where gas fire suppression is determined to be required due to the criticality of the site, the

system shall:

be designed in accordance with ATS 5587.7 Guidelines – Fire Safety Engineering Part 7:

Detection, activation and suppression

use inert non-toxic gaseous flooding agents

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have appropriate warnings and evacuation plan signposted immediately inside and

outside the room

have full documentation loaded onto the relevant Asset Management System

16. Amenities

In general, all storage cabinets, kitchen and toilet facilities and other amenities shall be outside

the telecommunications equipment room.

All first aid should be managed by the individuals working in the telecommunications equipment

rooms, that is, personnel should take a first aid kit with them, or have one in the vehicle.

Chairs or stools are to be provided for staff visiting the room.

Fold down benches or tables are to be provided to support laptop computers and test

equipment.

17. Security

17.1 Locks

A 'Falcon' series lock (specific lock to be nominated by the AEO) is to be fitted to the door,

unless remote or electronic access control is deemed mandatory by other relevant codes or

standards.

17.2 Electronic security systems

Any security system installed shall comply with the requirements of the appropriate regulatory

authority and the appropriate parts of AS 2201 Intruder alarm systems.

Security systems may include:

intruder detection -as a minimum there should be door contacts on all doors and remote

sensing unit to bring the alarms back to the RTOC.

access control – with remote door lock activation.

security cameras – IP zoom /tilt (rev) based cameras at all locations.

a combination of the above – perimeter alarm shall be considered for remote sites.

18. Earthing

Earthing and lightning protection shall be installed at all communications rooms according to the

provisions outlined in T HR TE 00109 ST Communications Earthing and Surge Suppression.

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19. Rack layout and construction

19.1 Minimum working space

A minimum working space of 1000 mm (preferably 1200 mm) at the front of the BD shall be

provided in telecommunications equipment rooms requiring regular operation and maintenance

activity.

The minimum size for the equipment room shall consider at least the ten year requirement of

the communications equipment room. See Section 8 Categories.

The layout used for the equipment racks shall provide for adequate rear access for technicians

to work comfortably. As a minimum, a clearance of 900 mm between each suite of racks shall

be provided.

19.2 Clearance and pathways

Equipment racks, which require operation and maintenance access, shall have a minimum

900 mm clearance. If operation and maintenance access is required at the rear or either side,

then these also require 900 mm minimum clearance.

Where an equipment manufacturer or vendor specifies a greater clearance than 900 mm due to

the special nature of the equipment, then the specified clearance shall be allowed for.

Where the depth of the equipment rack or the equipment installed in the rack is greater than

600 mm, a further 300 mm clearance greater than the maximum depth of equipment is required.

Shelves are to be used for heavy or awkward equipment. Supporting heavy equipment with rack

screws only is discouraged.

Where equipment is mounted on a sliding tray or drawer for ease of operation and

maintenance, a clearance of 750 mm greater than the maximum extended depth from the rack

shall be allowed for.

A pathway required for emergency egress from an equipment room shall have a minimum

1000 mm clear width at all points.

The side of a rack may be positioned within 900 mm of a wall provided the space between the

rack and the wall is not required for emergency egress or for equipment access.

19.3 Equipment suites beyond 6000 mm

Equipment suites shall not extend beyond 6000 mm unless a break of at least 900 mm is

provided at no more than 6000 mm intervals.

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20. Cables

20.1 Cable entry

20.1.1 Diverse entries

Diverse cable entries are required for core and major edge telecommunications equipment

rooms to provide trunk optical fibre path diversity.

Diversity shall be achieved by cable entries at opposite ends of the wall on which the main

distribution frame is mounted.

Diverse cable entries are not mandatory for local area distribution of optical fibre or copper

communications service cables or for copper main trunk cables. However, diverse entries for

these cables should be considered if required for effective management of cable distribution or

where it is possible that the bulk of cables terminating at the location would congest a single

entry making work difficult.

20.1.2 Cable entry capacity

Long term requirements shall be considered when dimensioning cable entries. 100% spare

capacity shall be allowed over the 10 year projected requirement.

Table 1shows minimum requirements for cable entries. An equivalent capacity in other sizes of

conduits may be used to facilitate, for example, blowing fibre in a continuous conduit run.

Table 1 - minimum requirements for cable entries

Type of Site Minimum Total Conduits (**)

Minimum Required Configuration

Network Core 20 x 100 mm Two diverse entries

Major Edge 16 x 100 mm Two diverse entries

Minor Edge 12 x 100 mm Two diverse entries OR where diverse entries are impractical, a single entry with minimum unprotected (unduplicated) cable route.

Access 4 x 100 mm Single entry

** This minimum requirement may not be sufficient for the

requirements for a particular site. The proposed site capacity

should consider the requirement of future technology / equipment

and upgrade of assets. There shall be spare conduits at all times.

Each site shall have the approval of the AEO.

Note that in the case of diverse entries, the total conduit count

should be divided between the entries to suit the particular

installation. For example, the second entry may have less conduits

than the first (main) entry, where it is not proposed to use the

second entry for copper cable distribution

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20.1.3 Cable entry pits

All cable entry pits shall have minimum internal dimensions of

1500 mm x 1500 mm x 1200 mm deep for a main telecommunications equipment room

(network core and major network edge) access pit

or

1200 mm x 1200 mm x 1200 mm deep for a minor telecommunications equipment room

(network access and minor network edge)

Each cable entry pit will have an adjoining optical fibre slack coil storage pit of

1200 mm x 700 mm x 700 mm deep. A minor cable entry may be appropriate for the diverse

entry where a second entry is not proposed for copper cable distribution.

Design of communications cable entry arrangements shall be coordinated with Signals and

Electrical designs wherever combined service cable routes or buildings are used.

Communications cable pits shall not be shared with LV (including Signals) or HV services pits.

20.2 Cable

All telecommunications cabling shall meet the requirements of T HR TE 00102 ST

Communication Outdoor Cabling and AS/ACIF S008 Requirements for customer cabling

products.

All cables shall be installed in accordance with AS/ACIF S009 Installation requirements for

customer cabling.

All communications cables installed in underground locations shall have low smoke, low toxicity,

halogen free and flame-retardant sheaths.

21. Main distribution frame verticals (and copper cable terminations)

All telecommunications equipment rooms shall be fitted with an appropriately sized main

distribution frame (MDF). Any space reserved for future MDF installation shall not be used for

other purposes unless a request to the ASA for concession to this standard is obtained. In

general, it is advisable to install the whole MDF framework in one installation task. This will

provide adequate design for future jumper wires field or link cables / cable leads management.

All core and edge telecommunications equipment rooms shall be fitted with an appropriately

sized DDF for E1 services etc. Access telecommunications equipment rooms may be fitted with

a DDF where necessary.

For copper cable termination, a minimum of four verticals will be required, with at least two of

them to be installed initially, one each of the 55 way Krone vertical for local and equipment

cables.

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Page 19 of 19

22. Equipment decommissioning and removal

All unused equipment shall be removed or recovered from site within a reasonable time from

the date of its de-commissioning. Any time longer than three months for this is considered

unreasonable without a strategic reason for a longer hold time before removal.

Scope for removal and recovery shall include:

the equipment

interconnecting links between all sites

repair and repaint all damaged floor, wall or cable trays

all cabling associated with the equipment to power supplies, earth points, MDF, optical

connections, alarm & supervisory connections, etc

any equipment racking or cable tray no longer required for other purposes

update of site and cable records associated with the equipment and its cabling

update of floor plans and rack layout drawings and services records

23. Third party access

Generally, third party equipment is not allowed in telecommunications equipment rooms unless

required to support the TfNSW telecommunications network and approved by the Lead

Telecommunications Engineer.


Documents

T HR TE 21001 ST Telecommunications Equipment …ST Telecommunications Equipment Rooms T HR TE 21001 ST Standard Version 1.0 Issued Date: 17 March 2014 Effective Date: 17 March 2014