Equipment Rooms and Cubicles for Programmable Electronic Systems
T MU MD 21001 ST
Standard
Version 1.0
Issue date: 19 July 2019
© State of NSW through Transport for NSW 2019
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
Important message This document is one of a set of standards developed solely and specifically for use on
Transport Assets (as defined in the Asset Standards Authority Charter). It is not suitable for any
other purpose.
The copyright and any other intellectual property in this document will at all times remain the
property of the State of New South Wales (Transport for NSW).
You must not use or adapt this document or rely upon it in any way unless you are providing
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you in writing to do so. 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. To be clear, the content of this document is not licensed under any
Creative Commons Licence.
This document may contain third party material. The inclusion of third party material is for
illustrative purposes only and does not represent an endorsement by NSW Government of any
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If you use this document or rely upon it without authorisation under these terms, the State of
New South Wales (including Transport for NSW) and its personnel does not accept any liability
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This document may not be current and is uncontrolled when printed or downloaded. Standards
may be accessed from the Transport for NSW website at www.transport.nsw.gov.au
For queries regarding this document, please email the ASA at [email protected] or visit www.transport.nsw.gov.au © State of NSW through Transport for NSW 2019
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
Standard governance
Owner: Lead Telecommunications Engineer, Asset Standards Authority
Authoriser: Chief Engineer, Asset Standards Authority
Approver: Executive Director, Asset Standards Authority on behalf of the ASA Configuration Control Board
Document history
Version Summary of changes
1.0 First issue.
© State of NSW through Transport for NSW 2019 Page 3 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
Preface
The Asset Standards Authority (ASA) is a key strategic branch of Transport for NSW (TfNSW).
As the network design and standards authority for NSW Transport Assets, as specified in the
ASA Charter, the ASA identifies, selects, develops, publishes, maintains and controls a suite of
requirements documents on behalf of TfNSW, the asset owner.
The ASA deploys TfNSW requirements for asset and safety assurance by creating and
managing TfNSW's governance models, documents and processes. To achieve this, the ASA
focuses on four primary tasks:
• publishing and managing TfNSW's process and requirements documents including TfNSW
plans, standards, manuals and guides
• deploying TfNSW's Authorised Engineering Organisation (AEO) framework
• continuously improving TfNSW’s Asset Management Framework
• collaborating with the Transport cluster and industry through open engagement
The AEO framework authorises engineering organisations to supply and provide asset related
products and services to TfNSW. It works to assure the safety, quality and fitness for purpose of
those products and services over the asset's whole-of-life. AEOs are expected to demonstrate
how they have applied the requirements of ASA documents, including TfNSW plans, standards
and guides, when delivering assets and related services for TfNSW.
Compliance with ASA requirements by itself is not sufficient to ensure satisfactory outcomes for
NSW Transport Assets. The ASA expects that professional judgement be used by competent
personnel when using ASA requirements to produce those outcomes.
About this document
This standard specifies the design and construction requirements of equipment rooms and
cubicles and associated pathways (cable routes) that accommodate equipment and cabling
infrastructure for programmable electronic systems.
This standard covers the requirements for location, size and provisioning for equipment rooms,
cubicles, and associated pathways.
This standard describes the tailored conformance to AS/NZS 3084:2017 and
AS/NZS ISO/IEC 14763.2:2014.
This standard was previously issued as T MU TE 21001 ST Equipment Rooms and Cubicles,
v1.0 in September 2015.
This standard supersedes T MU TE 21001 ST, v1.0 and is now issued as T MU MD 21001 ST
Equipment Rooms and Cubicles for Programmable Electronic Systems, version 1.0.
© State of NSW through Transport for NSW 2019 Page 4 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
The changes from the previous issue include the following:
• incorporation of TN 019: 2018 Clarification to T MU TE 21001 ST Equipment Rooms and
Cubicles, v1.0
• adoption of AS/NZS 3084:2017 and AS/NZS ISO/IEC 14763.2:2014
© State of NSW through Transport for NSW 2019 Page 5 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
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Table of contents 1. Introduction .............................................................................................................................................. 7
2. Purpose .................................................................................................................................................... 7 2.1. Scope ..................................................................................................................................................... 7 2.2. Application ............................................................................................................................................. 7
3. Reference documents ............................................................................................................................. 9
4. Terms and definitions ........................................................................................................................... 11
5. Criticality assessment of equipment rooms and cubicles ................................................................ 12
6. Compliance with legislation and standards ....................................................................................... 13 6.1. Legislation ............................................................................................................................................ 13 6.2. TfNSW standards ................................................................................................................................ 14 6.3. Australian standards ............................................................................................................................ 16
7. Location .................................................................................................................................................. 16 7.1. Earth potential rise zone ...................................................................................................................... 16 7.2. Catch points ......................................................................................................................................... 17 7.3. Water infiltration ................................................................................................................................... 17 7.4. Access ................................................................................................................................................. 17 7.5. Geographical diversity ......................................................................................................................... 17
8. Size .......................................................................................................................................................... 17 8.1. Network access ................................................................................................................................... 18 8.2. Network distribution ............................................................................................................................. 18 8.3. Network core ........................................................................................................................................ 19
9. Provisioning ........................................................................................................................................... 19 9.1. Layout .................................................................................................................................................. 19 9.2. Doors ................................................................................................................................................... 22 9.3. Heating ventilation and air-conditioning ............................................................................................... 22 9.4. Lighting ................................................................................................................................................ 24 9.5. Power ................................................................................................................................................... 24 9.6. Equipment earthing .............................................................................................................................. 26 9.7. Electrostatic discharge protected area ................................................................................................ 26 9.8. Occupational noise management ........................................................................................................ 26 9.9. Physical security .................................................................................................................................. 26
10. Horizontal pathways .............................................................................................................................. 29
11. Building backbone pathways ............................................................................................................... 29
12. Campus backbone pathways and related spaces.............................................................................. 29 12.1. Trenches .......................................................................................................................................... 31 12.2. Conduit layout design ...................................................................................................................... 31 12.3. Pit design ......................................................................................................................................... 31 12.4. Cabling ............................................................................................................................................. 31
Appendix A Informative examples of equipment room layouts......................................................... 32 © State of NSW through Transport for NSW 2019 Page 6 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
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1. Introduction Equipment rooms and cubicles are required to accommodate equipment and cabling
infrastructure for programmable electronic systems that performs functions necessary or
desirable for the workings of transport services within the Transport Network. These systems
include ticketing, customer information, security and operational communications.
This standard is intended to be read in conjunction with the following standards:
• AS/NZS 3084:2017 Telecommunications installations – Telecommunications pathways and
spaces for commercial buildings
• AS/NZS ISO/IEC 14763.2:2014 Information technology – Implementation and operation of
customer premises cabling – Part 2: Planning and installation
2. Purpose This standard specifies the design and construction requirements of equipment rooms, cubicles,
and associated pathways (cable routes) that accommodate equipment and cabling
infrastructure for programmable electronic systems.
2.1. Scope This standard covers the requirements for location, size and provisioning for equipment rooms,
cubicles, and associated pathways.
This standard describes the tailored conformance to AS/NZS 3084:2017 and
AS/NZS ISO/IEC 14763.2:2014.
T HR TE 21003 ST Telecommunications for Traction Substations and Section Huts contains
additional requirements for telecommunication facilities within high voltage locations.
This standard does not cover the requirements for fire safety.
2.2. Application This standard applies to heavy rail; however it can apply to other modes of transport.
This standard does not apply to rolling stock and heavy rail signalling equipment rooms and
cubicles.
This standard applies to spaces and pathways that contain, or are intended to contain
equipment and cabling infrastructure for programmable electronic systems.
This standard applies to the ‘telecommunications network’, ‘customer access equipment’ and
‘customer cabling’; however does not apply to ‘terminal equipment’.
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This standard applies to production and non-production environments, including test and model
environments.
This standard applies in full to new or substantially altered equipment rooms, cubicles, and
associated pathways.
For example, a booking office accommodates station services in a rack. A project
intends to relocate this equipment into a refurbished room. This standard applies in
full.
This standard partially applies to altered equipment rooms, cubicles, and associated pathways.
Where altered, the relevant requirements of this standard apply to the altered assets, in addition
to Section 5 and Section 6.
For example, an existing equipment room accommodates station services. A project
intends to install new equipment as part of an upgrade to the customer information
system. The room layout needs to be redesigned to accommodate a new rack and the
power system expanded. The general requirements, layout, and power requirements
from Section 6, Section 9.1 and Section 9.6 of this standard apply.
This standard partially applies to the installation of new equipment or cabling infrastructure
within existing unaltered equipment rooms, cubicles, and associated pathways, provided the
change would not increase the assessed criticality. The process for assessing criticality is
defined in Section 5.
For example, an existing equipment room accommodates station services. A project
intends to install new equipment as part of an upgrade to an information technology
system. The criticality of the equipment room is reassessed with the proposed
equipment and the criticality will not change. In this case, the standard does not apply.
For example, an existing equipment room accommodates station services. A project
intends to install new equipment as part of an industrial automation and control
system. The criticality of the equipment room is reassessed with the proposed
equipment and the criticality will increase. In this case, the standard applies in full.
Where a change increases the assessed criticality, this standard applies in full.
This standard applies to information technology equipment and cabling infrastructure located in
stations, stops and depots.
This standard does not apply to recurrent maintenance of equipment rooms, cubicles, and
associated pathways.
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3. Reference documents The following documents are cited in the text. For dated references, only the cited edition
applies. For undated references, the latest edition of the referenced document applies.
International standards
IEC 61340-5-1 Electrostatics – Part 5-1: Protection of electronic devices from electrostatic
phenomena – General requirements
IEC 62498-3 Railway applications – Environmental conditions for equipment – Part 3:
Equipment for signalling and telecommunications
IEEE 485 Recommended Practice for Sizing Lead-Acid Batteries for Stationary Applications
Australian standards
AS 3011 Electrical installations - Secondary batteries installed in buildings (all parts)
AS/CA S009 Installation requirements for customer cabling (Wiring Rules)
AS/NZS 1269.2 Occupational noise management - Noise control management
AS/NZS 3000 Electrical installations (known as the Australian/New Zealand Wiring Rules)
AS/NZS 3010 Electrical installations – Generating sets
AS/NZS 3084:2017 Telecommunications installations – Telecommunications pathways and
spaces for commercial buildings
AS/NZS 3112 Approval and test specification - Plugs and socket-outlets
AS/NZS ISO/IEC 14763.2:2014 Information technology - Implementation and operation of
customer premises cabling - Planning and installation
Transport for NSW standards
ESB 003 Station Functional Spaces
ESB 004 Station Services and Systems
ESC 250 Turnouts and Special Trackwork
SPM 0123 Reinforced Pre-Cast Concrete Cable Pits
T MU AM 01001 ST Life Cycle Costing
T MU AM 02002 TI Asset Classification System
T MU AM 04001 PL TfNSW Configuration Management Plan
T MU EN 00005 ST Ambient Environmental Conditions
T MU HF 00001 ST Human Factors Integration – General Requirements
T MU MD 00006 ST Engineering Drawings and CAD Requirements © State of NSW through Transport for NSW 2019 Page 9 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
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T MU MD 20002 ST Risk Criteria for Use by Organisations Providing Engineering Services
T HR SS 80002 ST Low Voltage Electrical Installations
T HR TE 01001 ST Communication Outdoor Cabling
T HR TE 21002 ST Communications Earthing and Surge Suppression
T HR TE 21003 ST Telecommunications for Traction Substations and Section Huts
T MU TE 81001 ST Telecommunication Equipment – Physical Interfaces and Environmental
Conditions
Legislation
Environmental Planning and Assessment Act 1979
Heritage Act 1977
Radiocommunications Act 1992
Radiocommunications (Compliance Labelling – Devices) Notice 2014
Radiocommunications (Compliance Labelling - Electromagnetic Radiation) Notice 2014
Radiocommunications Labelling (Electromagnetic Compatibility) Notice 2017
Rail Safety National Law (NSW), 2012
Telecommunications Act 1997
Telecommunications (Labelling Notice for Customer Equipment and Customer Cabling)
Instrument 2015
Telecommunications Technical Standard (Requirements for customer cabling products -
AS/CA S008) 2015
Work Health and Safety Act 2011
Other reference documents
Australian Government Attorney-General's Department, Protective Security Policy Framework -
15 Physical security for entity resources
Australian Government Attorney-General's Department, Protective Security Policy Framework -
16 Entity facilities
The Australian Building Codes Board, National Construction Code, Volume one
NSW Government Resource Efficiency Policy, For a resource productive public sector with less
impact on the environment
SafeWork NSW, Code of Practice – Hazardous Manual Tasks
SafeWork NSW, Managing the Work Environment and Facilities Code of Practice
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SafeWork NSW, Managing Noise and Preventing Hearing Loss at Work code of practice
SafeWork NSW, Safe design of structures code of practice
SafeWork NSW, Code of Practice – Managing the Risk of Falls at Workplaces
Transport for NSW, Future Transport Technology, Roadmap 2016
4. Terms and definitions The following terms and definitions apply in this document:
building backbone cable fixed cable connecting distributors within the building backbone
cabling subsystem (AS/NZS 11801.1)
cable management system system used for the support and/or containment, retention,
protection of all types of cables, information and communication lines, electrical power
distribution conductors and their associated accessories (AS/NZS ISO/IEC 14763.2:2014)
campus backbone cable fixed cable connecting distributors within the campus backbone cabling
subsystem (AS/NZS 11801.1)
customer access equipment customer equipment with multiple ports (local or network) that
provides access (gateway functions) to a telecommunications network and is capable of
switching, storage, processing, conversion, integration, line isolation/coupling or multiplexing of
analogue or digital voice or voice equivalent communication (AS/CA S003). (AS/CA S009)
customer cabling a line that is used, installed ready for use or intended for use on the customer
side of the boundary of a telecommunications network (Telecommunications Act 1997)
EPR earth potential rise
EPR hazard zone the area around an earthing system bounded by a contour joining all points
of EPR equal to the maximum acceptable voltage below which no special precautions need to
be taken to protect telecommunication services, cabling providers and end-users (AS/CA S009)
floor cable cable connecting the floor distributor to the intermediate distributor (AS 11801.3)
HVAC heating, ventilation and air conditioning
IP code coding system to indicate the degrees of protection provided by an enclosure against
access to hazardous parts, ingress of solid foreign objects, ingress of water and to give
additional information in connection with such protection (AS 60529)
IK code coding system to indicate the degree of protection provided by an enclosure against
harmful external mechanical impacts (IEC 62262)
IMSB installation main switchboard
LCC life cycle cost
LV low voltage © State of NSW through Transport for NSW 2019 Page 11 of 35
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NABERS national Australian built environment rating system
NCC national construction code
network termination device a device meeting the carrier’s requirements that is provided by the
carrier to establish a demarcation point between the carrier’s telecommunications network and
customer cabling or customer equipment (AS/CA S009)
pathway (cable route, cable way) defined route for cables between termination points
(AS/NZS ISO/IEC 14763.2:2014)
rail corridor the land on which a railway is built; comprising all property between property
fences, or from the nearest rail in each direction for the distance specified by the Rail
Infrastructure Manager. (Rail Industry Safety and Standards Board website glossary)
rack unit (RU) 44.45 mm (1.75 inches) of vertical mounting space in an IEC 60297 series
standard cabinet or rack (AS/NZS ISO/IEC 14763.2:2014)
space (telecommunications) specified volume (e.g. room, maintenance hole or part thereof)
housing closures and/or other information technology equipment (AS/NZS ISO/IEC
14763.2:2014)
telecommunications network a system, or series of systems that is operated by a carrier or
carriage service provider and which carries, or is capable of carrying, communications by
means of guided and/or unguided electromagnetic energy (AS/CA S009)
terminal equipment peripheral equipment operated by the end-user to access a
telecommunications service (AS/CA S009)
Transport Network the transport system (transport services and transport infrastructure)
owned and operated by TfNSW, its operating agencies or private entities upon which TfNSW
has power to exercise its functions as conferred by the Transport Administration Act or any
other Act.
5. Criticality assessment of equipment rooms and cubicles The requirements for criticality assessment are provided in Section 5.
All equipment rooms and cubicles shall be assessed for criticality based on the risk assessment
consequence criteria listed in T MU MD 20002 ST Risk Criteria for Use by Organisations
Providing Engineering Services.
The risk assessment shall include the present, proposed and projected equipment and cabling
infrastructure within the equipment room or cubicle for at least 10 years.
TfNSW shall determine the consequence rating in consultation with the operator and
maintainer.
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T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
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6. Compliance with legislation and standards Equipment rooms and cubicles shall comply with all relevant legislation, Australian standards
and TfNSW standards and these requirements are provided in Section 6.1 to Section 6.3.
The design and construction of equipment rooms and cubicles shall comply with the National
Construction Code (NCC), volume 1.
Note: The NCC, volume 1 does not manage risks to rail safety. The Rail Safety
National Law (NSW), 2012 requires that risks associated with rail infrastructure
operations and rolling stock operations are managed.
Note: Statutory instruments, such as the NCC, volume 1, AS/NZS 3000 Electrical
installations (known as the Australian/New Zealand Wiring Rules) and AS/CA S009
Installation requirements for customer cabling (Wiring Rules), contain requirements
and recommendations that influence the layout of equipment rooms. The ASA is
legally unable to grant concessions to statutory requirements.
6.1. Legislation Equipment rooms and cubicles shall comply with all relevant legislation and technical standards
given effect by legislation. At the time of publication this includes the following:
• development
o Environmental Planning and Assessment Act 1979
• health and safety
o Rail Safety National Law (NSW) 2012, if applicable
o Work Health and Safety Act 2011
o SafeWork NSW, Safe design of structures code of practice
o SafeWork NSW, Code of Practice – Hazardous Manual Tasks
o SafeWork NSW, Managing the Work Environment and Facilities Code of Practice
o SafeWork NSW, Code of Practice – Managing the Risk of Falls at Workplaces
• heritage
o Heritage Act 1977
• radiocommunications and telecommunications
o Radiocommunications Act 1992
o Radiocommunications (Compliance Labelling – Devices) Notice 2014
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o Radiocommunications (Compliance Labelling - Electromagnetic Radiation) Notice
2014
o Radiocommunications Labelling (Electromagnetic Compatibility) Notice 2017
o Telecommunications Act 1997
o Telecommunications (Labelling Notice for Customer Equipment and Customer
Cabling) Instrument 2015
o Telecommunications Technical Standard (Requirements for customer cabling
products - AS/CA S008) 2015
6.2. TfNSW standards Equipment rooms and cubicles shall comply with relevant TfNSW standards.
6.2.1. Stations and buildings Equipment rooms and cubicles shall comply with the relevant TfNSW standards pertaining to
building services, electrical, heritage and station design.
The requirements for ‘communication room’ contained within ESB 003 Station Functional
Spaces and ESB 004 Station Services and Systems are replaced with the requirements of this
standard.
6.2.2. Life cycle costing The development of design options shall have an associated life cycle cost (LCC) for each
option in accordance with T MU AM 01001 ST Life Cycle Costing. The design options
developed shall satisfy the requirements of this standard irrespective of the LCC.
6.2.3. Configuration management All configuration items shall be labelled with their assigned unique code as described in
T MU AM 04001 PL TfNSW Configuration Management Plan.
The final design shall include the following:
• a complete set of engineering drawings and associated design documentation produced in
accordance with T MU MD 00006 ST Engineering Drawings and CAD Requirements,
including the following:
o site plan, inclusion of demolition
o photos showing the present and as-built equipment and cabling infrastructure
o layout drawings, inclusive of floor and wall space reservations for rack cabinets and
enclosures in plan and section views
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o heating, ventilation, and air conditioning drawings
o power drawings, inclusive of distribution and backup power supplies, circuits and
socket-outlets, in plan, section and elevation views
o earthing and surge suppression drawing in plan view
o electrostatic discharge protected area drawing
o operational noise control techniques drawing
o physical security drawing
o building backbone pathways drawings, inclusive of cable trays and trunking in plan
and section views
o campus backbone pathways drawings, inclusive of trenches and conduits, pits and
cables in plan view
• specific design calculations, estimations, predictions, modelling and the like, and
supporting files including modelling data and associated files, including the following:
o site sizing predictions
o thermal modelling, for forced-air ventilation or air conditioning options
o life cycle costs, for forced-air ventilation or air conditioning options
o backup power supply period calculations
o life cycle costs, for backup power supply options
• specific design assumptions, constraints, limitations, and parameters; including the
following:
o site criticality assessment
o temperature and humidity limits that apply to equipment
o IP code constraints that apply to equipment
Reservations for rack cabinets, rails, enclosures and rack units within cabinets shall be
allocated and managed through consultation and consensus with all stakeholders with assets
and systems in the equipment room or cubicle.
6.2.4. Asset classification Equipment rooms and cubicles shall be classified as follows in accordance with
T MU AM 02002 TI Asset Classification System:
• Level 1 - property discipline
• Level 2 - facilities asset class
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• Level 3 - communications system location asset function
Engineering assurance shall be provided for equipment rooms and cubicles as an integrated
facility of assets and systems, including technical assurance and approvals by competent
subject matter experts.
6.2.5. Human factors
The work area design and layout of equipment rooms and cubicles shall incorporate the
principles of human factor integration as described in T MU HF 00001 ST Human Factors
Integration – General Requirements.
In order to minimise the risk of injury, consideration should be given to the placement of
equipment between the hip and shoulder height in accordance with the nature of the tasks
performed:
• tasks that are frequently performed
• tasks that involve heavier items
• tasks that are difficult or complex
• tasks that are of a longer duration
6.3. Australian standards The equipment rooms, cubicles and associated pathways shall comply with AS/NZS 3084:2017
and AS/NZS ISO/IEC 14763.2:2014.
However, the requirements of this standard take precedence over AS/NZS 3084:2017 and
AS/NZS ISO/IEC 14763.2:2014 where they differ.
7. Location The requirements for location are provided in Section 7.1 to Section 7.5.
Stations and stops shall be provided with a minimum of one network access equipment room or
cubicle as defined in Section 8.1.
Equipment rooms for network distribution and network core shall not be located on platforms.
7.1. Earth potential rise zone Equipment rooms and cubicles shall not be located within an earth potential rise (EPR) hazard
zone unless permitted by T HR TE 21002 ST Communications Earthing and Surge
Suppression.
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7.2. Catch points Equipment rooms and cubicles shall be located greater than 40 m beyond the point of
derailment at catchpoints as defined in ESC 250 Turnouts and Special Trackwork.
7.3. Water infiltration Equipment rooms and cubicles shall have a minimum finished floor level of 300 mm above the
average of 1 in 100-year flood level.
Equipment rooms and cubicles shall have a minimum finished floor level of 150 mm above the
external finished ground level.
Cubicles shall have a minimum IP code of IPX6 for water ingress.
7.4. Access Personnel and vehicular access shall be designed to meet the operational and maintenance
service level requirements.
7.4.1. Personnel access Equipment rooms shall be situated to allow 24-hour personnel access.
Equipment rooms shall be situated such that personnel are not required to enter into areas
where they can be struck by rolling stock, vehicles or vessels.
7.4.2. Vehicular access and equipment delivery C4 rated equipment rooms shall be provided with reserved on-site parking for operations and
maintenance.
Refer to Section A4 of AS/NZS 3084:2017 for considerations for equipment delivery.
7.5. Geographical diversity If an equipment room or cubicle is rated as C1, C2, or C3, then all critical services shall be
provided by one or more additional geographically diverse sites such that the residual
consequence rating is reduced to C4, C5, or C6.
8. Size Equipment rooms, cubicles, and associated pathways shall be sized to accommodate present,
proposed and projected equipment and cabling infrastructure for at least 10 years.
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The sizing shall be justified by historical asset information, committed projects and initiatives,
and future technology trends. Refer to Transport for NSW, Future Transport Technology,
Roadmap 2016 for further information.
8.1. Network access Equipment rooms and cubicles that provide network access shall contain only network
termination devices, customer access equipment and customer cabling as defined in
AS/CA S009. They shall provide telecommunication services to a single premise.
Note: Network access equipment rooms and cubicles typically contain network
termination and end-user equipment, and provide telecommunication services to a
single station, stop or depot.
At a minimum, network access equipment rooms and cubicles shall be of sufficient size to
accommodate the following:
• one rack cabinet or cubicle fitted with rails
• primary power supply and switchboards
• one cable entry and distribution frame
• cable management systems
Note: Rack cabinets of nominal dimensions greater than 600 mm wide by 600 mm
deep are not necessary to accommodate network termination devices and customer
access equipment.
8.2. Network distribution Equipment rooms that provide network distribution shall contain telecommunications network
equipment as defined in AS/CA S009 and provide telecommunication services to multiple
premises. They may also contain customer access equipment and customer cabling as defined
in AS/CA S009.
Note: Network distribution equipment rooms typically contain telecommunications
network provider equipment, and provide telecommunication services to multiple
stations, stops, and depots. They have a consequence rating of C5.
At a minimum, network distribution equipment rooms shall be of sufficient size to accommodate
the following:
• four-rack cabinets
• primary power supply, backup power supply and switchboards
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• two cable entries and two distribution frames
• cable management systems
8.3. Network core Equipment rooms that provide network core contain telecommunications network equipment as
defined in AS/CA S009 and provide telecommunication services to multiple premises.
At a minimum, network core equipment rooms shall be of sufficient size to accommodate the
following:
• eight-rack cabinets
• primary power supply, alternative power supply, backup power supply and switchboards
• two cable entries and two distribution frames
• cable management systems
• active HVAC systems
9. Provisioning The requirements for provisioning are provided in Section 9.1 to Section 9.9. These
requirements are in addition to AS/NZS 3084:2017 and AS/NZS ISO/IEC 14763.2:2014 and
address the hazard where proposed and projected expansion requirements cannot be met.
Equipment rooms, cubicles, and associated pathways shall be provisioned to accommodate
present, proposed and projected equipment and cabling infrastructure for at least 10 years.
The provisioning shall be justified by historical asset information, committed projects and
initiatives, and future technology trends. Refer to the Future Transport Technology, Roadmap
2016 for further information.
9.1. Layout The layout requirements are provided in Section 9.1.1 to Section 9.1.3.
Refer to Appendix A for informative examples of equipment room layouts.
9.1.1. Rack cabinets and rails Equipment shall be mounted in rack cabinets or on rails in accordance with the requirements
stated in T MU TE 81001 ST Telecommunication Equipment – Physical Interfaces and
Environmental Conditions.
Rack cabinets shall be provisioned to mount telecommunications equipment in equipment
rooms.
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Rack cabinets or rails shall be provisioned to mount telecommunications equipment in cubicles.
In equipment rooms, the minimum nominal rack cabinet dimensions shall be 600 mm wide by
600 mm deep.
Rack cabinets shall be 42 RU full height racks.
Note: TfNSW has selected 42 RU full height racks to maximise the efficient use of
limited space whilst minimising the need for ladders for routine operations and
maintenance tasks.
Rack cabinets shall be levelled and permanently affixed to the floor.
Rails shall be permanently affixed to the cubicle.
9.1.2. Clearances for working and equipment delivery Where access is required to work on equipment during operate and maintain stage of the asset
life cycle, a minimum clearance shall be maintained as follows:
• For equipment rooms within existing buildings, provided that the relevant performance
requirements of the NCC, volume 1 are met, this requirement may be satisfied by a
minimum clearance of 0.9 m.
• Otherwise, this requirement may be satisfied by a minimum clearance of 1 m.
A minimum clearance for equipment delivery shall be maintained to the front face of racks and
rails as follows:
• For equipment rooms within existing buildings, provided that the relevant performance
requirements of the NCC, volume 1 are met, this requirement may be satisfied by a
minimum clearance, either the greater of 0.9 m or the maximum rack cabinet dimension
with an additional clearance of 0.3 m.
• Otherwise, this requirement may be satisfied by a minimum clearance, that is, the greater
of 1 m or the maximum rack cabinet dimension with an additional clearance of 0.3 m.
Figure 1 shows the working and equipment delivery for various size racks within a new building.
© State of NSW through Transport for NSW 2019 Page 20 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
Working clearances
Equipment delivery
clearances
Rear face
Front face
0.6m 0.
8m 1.0m
1.0m
1.3m 1.
1m 1.0m
1.0m
1.0m
Figure 1 - Clearances for working and equipment delivery
9.1.3. Paths of travel In equipment rooms, an unobstructed path of travel to an exit shall be provided as a means for
escape in the case of fire or other emergency as follows:
• For equipment rooms within existing buildings, provided that the relevant performance
requirements of the NCC, volume 1 are met, this requirement may be satisfied by a path of
minimum unobstructed width of 0.6 m.
• Otherwise, this requirement may be satisfied by a path of minimum unobstructed width of
1 m.
In equipment rooms, an unobstructed path of travel from a doorway to the point of installation
shall be provided for equipment delivery as follows:
• For equipment rooms within existing buildings, provided that the relevant performance
requirements of the NCC, volume 1 are met, this requirement may be satisfied by a path of
minimum unobstructed width, that is, the greater of 0.9 m or the maximum rack cabinet
dimension with an additional clearance of 0.3 m.
• Otherwise, this requirement may be satisfied by a path of minimum unobstructed width that
is the greater of 1 m or the maximum rack cabinet dimension with an additional clearance
of 0.3 m.
© State of NSW through Transport for NSW 2019 Page 21 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
9.2. Doors In equipment rooms, entrance doors shall open inwards unless otherwise required by statutory
instrument.
Signage and floor markings shall warn staff and customers of hazards associated with the
direction of opening of entrance doors.
9.3. Heating ventilation and air-conditioning The requirements for heating, ventilation and air-conditioning (HVAC) in equipment rooms and
cubicles are provided in Section 9.3.1 to Section 9.3.5.
9.3.1. Temperature and humidity limits The temperature and humidity limits guidelines within AS/NZS 3084:2017 do not apply.
The interior environmental conditions that the equipment rooms or cubicles shall provide are
defined in T MU TE 81001 ST and IEC 62498-3 Railway applications – Environmental
conditions for equipment – Part 3: Equipment for signalling and telecommunications.
The external ambient environmental conditions are defined in T MU EN 00005 ST Ambient
Environmental Conditions.
IEC 62498-3 defines the environmental conditions for equipment used for railway applications at
different sites.
Table 1 shows how equipment rooms and cubicles map to the definitions within IEC 62498-3.
Refer to IEC 62498-3 for the definitions of cubicle, shelter and building.
Table 1 - Environmental conditions for equipment rooms and cubicles
Equipment room or cubicle IEC 62498-3 sites IEC 62498-3 temperature or climate control
Cubicle Cubicle Not applicable
C6 equipment room Shelter Building
Without temperature control Without climate control
C5 equipment room Shelter Building
With or without temperature control With or without climate control
C4 equipment room Building With climate control
Heating shall not be used.
Equipment rooms and cubicles shall be fitted with sensors to monitor and alarm on the internal
ambient temperature.
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T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
9.3.2. Air handling capacity
The air handling requirements shall be calculated in accordance with AS/NZS 3084:2017 and
take into account the following:
• cooling demands associated with continuous operation of active equipment in present,
proposed and projected configurations
• cooling demand associated with lighting
• additional design margin of 10%
9.3.3. Energy efficiency Equipment rooms shall comply with the relevant requirements of the NSW Government
Resource Efficiency Policy, For a resource productive public sector with less impact on the
environment, including E2, E3 and E4.
Note: An equipment room is considered a telecommunication data centre and
therefore only the infrastructure data centre NABERS energy rating applies.
C6 and C5 rated equipment rooms shall be designed, built and commissioned to achieve a
minimum data centre infrastructure NABERS energy rating of 6.
Passive design shall be used in cubicles, and C6 and C5 rated equipment rooms unless one or
both of the following apply:
a. thermal modelling demonstrates that the internal yearly average temperatures in
IEC 62498-3 is exceeded in present, proposed or projected configurations
b. it is demonstrated that the life cycle cost, in accordance with T MU AM 01001 ST, of an
alternate design that includes forced-air ventilation or air-conditioning, or both, is less than
a passive design over the design life
9.3.4. Continuity of active HVAC systems Where forced-air ventilation or air-conditioning is used to maintain interior environmental
conditions, active HVAC systems shall be designed in a N+1 redundancy configuration or
better.
9.3.5. Dust ingress One of the following measures is required to mitigate the hazard of dust ingress:
• air intake to the room shall be filtered and room or cubicle positively pressurised
• equipment shall have a minimum IP code of IP5X
© State of NSW through Transport for NSW 2019 Page 23 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
9.4. Lighting The lighting in equipment rooms and cubicles shall comply with the requirements of
AS/NZS ISO/IEC 14763.2:2014 Annex C or Annex E (as applicable), including the
recommendations.
9.5. Power The requirements for power in equipment rooms and cubicles are provided in Section 9.5.1 to
Section 9.5.6.
Socket-outlets shall comply with AS/NZS 3112 Approval and test specification - Plugs and
socket-outlets.
Power supply to equipment rooms and cubicles shall not be subject to load shedding.
9.5.1. Distribution power supply
The power load requirements shall be calculated for the distribution power supply using the
following considerations:
• actual power loads of equipment in present, proposed, and projected configurations
• rated power load of ancillary supply circuits
• rated power load of lighting and HVAC
• power load of stationary batteries (if used) when charging
• design margin of 10%
The distribution power supply to equipment rooms and cubicles shall be directly wired to the
safety services supply of the installation main switchboard (IMSB).
9.5.2. Backup power supply
The minimum backup time for essential equipment is 2 or 4 hours in accordance with
T HR SS 80002 ST Low Voltage Electrical Installations.
Note: Essential equipment includes safety service equipment (typically related to fire
and life safety) and equipment (typically related to non-fire emergency or ongoing
property operation) as explained in T HR SS 80002 ST.
The backup times for essential equipment shall be calculated for each site using reliability
engineering techniques to meet the operator’s performance requirements.
The backup power supply shall be capable of supplying the full load of essential equipment and
systems necessary to maintain interior environmental conditions.
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T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
The life cycle cost of backup power supplies shall be evaluated in accordance with
T MU AM 01001 ST over the design life, with and without the addition of an alternative power
supply.
Where stationary batteries are used as a backup power supply, the installation shall comply with
AS 3011 Electrical installations - Secondary batteries installed in buildings (all parts) and the
following parameters shall be used to dimension the capacity:
• temperature correction for internal yearly average temperatures as provided in
IEC 62498-3
• aging factor of 25%
• design margin of 10%
Where lead-acid batteries are used, the capacity shall be dimensioned according to IEEE 485
Recommended Practice for Sizing Lead-Acid Batteries for Stationary Applications.
Equipment rooms and cubicles shall be fitted with sensors to monitor remaining backup power
supply capacity.
9.5.3. Inlet for transportable generating set An appliance inlet for connection to a transportable generating set shall be provided for C5 and
C4 rated equipment rooms and cubicles.
An appliance inlet shall be provided either at the IMSB, or dedicated for the equipment room or
cubicle as follows:
• an external wall mounted appliance inlet with a minimum IP code of IP66 and a minimum
IK code of IK06
• labelled on 2-ply plastic engraving material with the unique code for the equipment room or
cubicle and the minimum set specification
The electrical installation of sets shall comply with AS/NZS 3010 Electrical installations –
Generating sets.
9.5.4. Electrical distribution The electrical distribution system shall provide dedicated low voltage (LV) ac circuits for
essential and ancillary equipment.
Where racks are reserved for essential equipment that accepts multiple power supply inputs,
the electrical distribution system shall provide additional LV ac or extra low voltage dc supply
circuits.
© State of NSW through Transport for NSW 2019 Page 25 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
9.5.5. Low voltage ac socket-outlets for essential equipment
Single 15 A switched combination socket-outlets shall be affixed above each rack reservation.
LV socket-outlets shall be coloured-coded orange.
LV socket-outlets shall have a minimum IP code of IP44 and a threaded retaining device.
Ancillary equipment, such as test equipment and maintenance laptops, shall not be connected
to essential supply circuits.
9.5.6. Low voltage ac socket-outlets for ancilliary equipment A double 10 A switched socket-outlet shall be affixed inside cubicles and to each internal wall of
equipment rooms.
LV socket-outlets shall be coloured-coded white.
9.6. Equipment earthing The earthing and surge suppression requirements for equipment rooms and cubicles shall
comply with the requirements in T HR TE 21002 ST.
9.7. Electrostatic discharge protected area C4 rated equipment rooms shall comply as an electrostatic discharge protected area as defined
in IEC 61340-5-1 Electrostatics – Part 5-1: Protection of electronic devices from electrostatic
phenomena – General requirements.
9.8. Occupational noise management Noise control techniques shall be incorporated into the design for expected tasks and durations
as defined in AS/NZS 1269.2 Occupational noise management - Noise control management to
achieve compliance to SafeWork NSW, Managing Noise and Preventing Hearing Loss at Work
code of practice.
9.9. Physical security The physical security of equipment rooms and cubicles shall comply with the core and
supporting requirements in the following Australian Government, Attorney- General's
Department publications for physical security:
• Protective Security Policy Framework - 15 Physical security for entity resources
• Protective Security Policy Framework - 16 Entity facilities
A security risk assessment shall determine the applicability of control measures.
© State of NSW through Transport for NSW 2019 Page 26 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
C6 rated equipment rooms and cubicles shall comply as a ‘Zone Two’ restricted access area,
unless determined otherwise by the security risk assessment.
Figure 2 shows a C6 rated equipment room or cubicle located within a public area, such as an
equipment room or cubicle that opens directly onto a railway platform or light rail stop.
Rail corridors and segregated alignments shall be considered ‘Zone One’ irrespective of
boundary fencing.
© State of NSW through Transport for NSW 2019 Page 27 of 35
Figure 2 - C6 rated equipment room or cubicle – ‘Zone Two’ restricted access area within a public area
C5 and C4 rated equipment rooms and cubicles shall comply as a ‘Zone Three’ restricted
access area, unless determined otherwise by the security risk assessment.
C4 rated equipment rooms and cubicles shall be fully located and layered within a ‘Zone Two’
restricted access area.
Figure 3 shows a C5 rated equipment room or cubicle located within a public area, such as an
equipment room or cubicle that opens directly onto a railway platform or light rail stop.
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
Figure 3 - C5 rated equipment room or cubicle – ‘Zone Three’ restricted access area within a public area
Figure 4 shows a C4 rated equipment room or cubicle located within a building complex with
layered zones to increase the level of protection.
Figure 4 - C4 rated equipment room or cubicle – ‘Zone Three’ restricted access area within a building complex
Note: The following consequence rating is aligned with the business impact levels as
defined in PSPF security planning and risk assessment:
• criticality ratings C6 and C5 aligns to ‘low to medium impact’ due to compromise,
loss or damage of physical assets or compromise of information confidentiality
• criticality rating C4 aligns to ‘high business impact’ due to compromise, loss or
damage of physical assets
© State of NSW through Transport for NSW 2019 Page 28 of 35
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
10. Horizontal pathways Horizontal pathways shall provide a defined route for floor cables.
For equipment rooms, cable trays and trunking systems shall be hot-dip galvanised steel that is
compliant with T HR SS 80002 ST.
Cable trays and trunking system shall be installed for floor cabling between all reservations for
rack cabinets and enclosures.
11. Building backbone pathways The requirements for building backbone pathways within AS/NZS 3084:2017 and
AS/NZS ISO/IEC 14763.2:2014 apply.
Note: This section is included for alignment to AS/NZS 3084:2017. There are no
additional requirements.
12. Campus backbone pathways and related spaces Optical fibre cables shall be used for campus backbone pathways. Optical fibre cables shall
comply with TfNSW standards.
Equipment rooms and cubicles normally interface to campus backbone cable installed within
pathways owned by TfNSW.
Equipment rooms and cubicles that are entrance rooms or spaces shall interface using
underground pathways. The underground pathway consists of trenches, conduits, pits and
cables.
C5 and C4 rated equipment rooms that are entrance rooms or spaces shall interface using two
separate underground pathways as shown in Figure 5.
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T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
Building e.g. station, stop
Entrance room or space
C5 or C4 rated equipment room
≥ 5 m
≥ 1 m
≤ 10
m
Cable entry pit(secondary)
Slack pit(secondary)
Trench and conduits(primary)
Trench and conduits
(secondary)
Campus backboneCable entry pit(primary)
Slack pit(primary) ≥ 20 m
Figure 5 - Underground pathways for C5 and C4 rated equipment rooms
C6 rated equipment rooms and cubicles that are entrance rooms or spaces shall interface using
at least one underground pathway as shown in Figure 6.
Building e.g. station, stop
Entrance room or space
C6 rated equipment room
orcubicle
Cable entry pit(primary)
≤ 10
mTrench and conduits(primary)
Campus backbone
© State of NSW through Transport for NSW 2019 Page 30 of 35
Figure 6 - Underground pathway for C6 rated equipment rooms and cubicles
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
12.1. Trenches For C6 rated equipment rooms and cubicles, conduits shall be in one or more trenches of a
maximum length of 10 m.
For C5 and C4 rated equipment rooms, the following separation requirements shall be satisfied
as shown in Figure 5:
• conduits shall be in separate trenches
• minimum separation of 5 m between the trenches, except for a maximum length of 10 m,
where the minimum separation may be gradually reduced to 1 m
12.2. Conduit layout design Conduits shall have a nominal internal diameter of 100 mm.
For C6 rated equipment rooms and cubicles, two conduits shall be provided to the cable entry
pit.
For C5 and C4 rated equipment rooms, three conduits shall be provided per trench to cable
entry pits.
12.3. Pit design Each underground pathway shall have an associated pit for the purpose of cable splicing,
known as a cable entry pit.
In addition, the underground pathway for C5 and C4 rated equipment rooms shall have an
associated pit for storing coiled optical fibre cable, known as a slack pit.
Pits shall be full pit type (items 5 or 6) reinforced pre-cast concrete cable pits as defined in
SPM 0123 Reinforced Pre-Cast Concrete Cable Pits.
For C5 and C4 rated equipment rooms, a minimum separation of 20 m between cable entry pits
shall be provided as shown in Figure 5.
Pits shall not be located within an EPR hazard zone.
12.4. Cabling Cabling shall comply with the requirements of T HR TE 01001 ST Communication Outdoor
Cabling, except that copper communications cable shall not be used in new or substantially
altered pathways.
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T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
Appendix A Informative examples of equipment room layouts
Figure 7, Figure 8, Figure 9 and Figure 10 show simplified informative examples of equipment
room layouts.
Enclosurereservation
Rack cabinetreservation
Front face
DFSB
0.9m
Clearances for switchboards – Refer AS/NZS 3000
Clearances for distribution frames – Refer AS/CA S009
Path of travel to an exit – Refer Section 9.1.3
Clearances for working and equipment delivery – Refer Section 9.1.2
2400mm
1700
mm
© State of NSW through Transport for NSW 2019 Page 32 of 35
Figure 7 – Network access equipment room in an existing building
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
SB
DF
Enclosure reservations
Rack cabinet reservations
DF
Front face
Rear face
SB
4600mm
2600
mm
0.9m
0.9m
Clearances for switchboards – Refer AS/NZS 3000
Clearances for distribution frames – Refer AS/CA S009
Path of travel to an exit – Refer Section 9.1.3
Clearances for working and equipment delivery – Refer Section 9.1.2
© State of NSW through Transport for NSW 2019 Page 33 of 35
Figure 8 – Network distribution equipment room in an existing building
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
SB
4800mm
2800
mm
DF
SB
Enclosure reservations
Rack cabinet reservations
DF
Front face
Rear face
1.0m
1.0m
Clearances for switchboards – Refer AS/NZS 3000
Clearances for distribution frames – Refer AS/CA S009
Path of travel to an exit – Refer Section 9.1.3
Clearances for working and equipment delivery – Refer Section 9.1.2
© State of NSW through Transport for NSW 2019 Page 34 of 35
Figure 9 – Network distribution equipment room
T MU MD 21001 ST Equipment Rooms and Cubicles for Programmable Electronic Systems
Version 1.0 Issue date: 19 July 2019
SB
Enclosure reservations
4800mm
4700
mm
DF
SB
Rack cabinet reservations
DF
Front face
Rear face
Rack cabinet reservations
Rear face
Front face
1.0m
1.0m
1.1m
Clearances for switchboards – Refer AS/NZS 3000
Clearances for distribution frames – Refer AS/CA S009
Path of travel to an exit – Refer Section 9.1.3
Clearances for working and equipment delivery – Refer Section 9.1.2
© State of NSW through Transport for NSW 2019 Page 35 of 35
Figure 10 – Network core equipment room