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All indexed standards and FTN documents

Use the search if you know what you are looking for; this is the full list. Every current NR telecoms standard, checked against the NR Standards Portal on 7 November 2026; FTN (D&D) documents are legacy programme specifications kept for reference.

Company standard

Guidance note

  • NR/GN/TEL/30037Office Telephone System Installations (formerly RT/E/C/30037)Iss 2
  • NR/GN/TEL/30065Guidance Note for the Management of Safety Related Reports for Telecoms FailuresIss 3
  • NR/GN/TEL/30137Loudspeaker Selection for PA and VA systemsIss 1
  • NR/GN/TEL/30138Buried Cable Route and Cable Route Through Station PlatformIss 1 · clause-by-clause
  • NR/GN/TEL/30139The Survey And Design Of Telecoms Cable And RouteIss 1 · clause-by-clause
  • NR/GN/TEL/30140Telecommunications Cable Routes and InstallationIss 1 · clause-by-clause
  • NR/GN/TEL/31106Overview Of Electromagnetic Coupling Between Traction Systems And Telecommunications CablesIss 1 · clause-by-clause
  • NR/GN/TEL/31109Telecoms Back Up Power Selection GuidanceIss 1 · clause-by-clause
  • NR/GN/TEL/50017CCTV for Stations - Functional, Technical and Operational RequirementsIss 1 · clause-by-clause
  • NR/GN/TEL/31100Telecommunications Failure Investigation (formerly RT/E/C/31100)Iss 1 · clause-by-clause
  • NR/GN/TEL/31101Telecommunications Failure Investigation: Investigation Guides (formerly RT/E/C/31101)Iss 1 · clause-by-clause
  • NR/GN/TEL/31201Telecommunications Maintenance Testing: Maintenance and Missing Equipment Test Plans (formerly RT/E/C/31201)Iss 1 · clause-by-clause

Level 1 policy

Level 2 specification

  • NR/L2/TEL/00013Specification for cable troughingIss 4+ADD1 · clause-by-clause
  • NR/L2/TEL/00028Controlled Climate Trackside Housing for Telecommunications Equipment (formerly NR/PS/TEL/00028)Iss 3 · clause-by-clause
  • NR/L2/TEL/013Competence in Telecommunications Engineering (NR/L2/CTM/013)Iss 3
  • NR/L2/TEL/30002Operational Concentrator System (OCS) (NR/SP/TEL/30002)Iss 6
  • NR/L2/TEL/30003Immunity Test Requirements For Lineside Communications Systems (Formerly NR/SP/TEL/30003)Iss 5 · clause-by-clause
  • NR/L2/TEL/30022Engineering Assurance Arrangements for Communications Engineering Schemes and Services (formerly RT/E/P/30022)Iss 8 · clause-by-clause
  • NR/L2/TEL/30024Fault Priority, Restoration Time and Accountability for Telecommunications Equipment (formerly NR/SP/TEL/30024)Iss 5 · clause-by-clause
  • NR/L2/TEL/30025Standby Power Supply Requirements for Telecommunications EquipmentIss 5 · clause-by-clause
  • NR/L2/TEL/30028Installation of Operational Telecommunications Equipment (formerly NR/SP/TEL/30028)Iss 3 · clause-by-clause
  • NR/L2/TEL/30033Inspection and Surveillance of Telecommunications Engineering Activities (formerly NR/SP/TEL/30033)Iss 7
  • NR/L2/TEL/30034Radio Mast Lightning Protection and Earthing System (Formerly RT/E/S/30034)Iss 4 · clause-by-clause
  • NR/L2/TEL/30036Booster Transformers Outages: Managing the Consequences for Telecommunication Systems (formerly RT/E/S/30036)Iss 4
  • NR/L2/TEL/30066Clearance From Fixed Radio Frequency Transmitters (formerly RT/E/P/30066)Iss 8 · clause-by-clause
  • NR/L2/TEL/30067The Transmission of Safety Related InformationIss 2
  • NR/L2/TEL/30070Maintenance of Telecommunications Copper CablesIss 2
  • NR/L2/TEL/30075Maintenance of Electro-mechanical Concentrators (Formerly NR/WI/TEL/30075)Iss 2
  • NR/L2/TEL/30078Maintenance of Network Control Processor Systems (NR/WI/TEL/30078)Iss 2
  • NR/L2/TEL/30086Maintenance of Telecoms Digital Transmission Systems (Formerly NR/WI/TEL/30086)Iss 3
  • NR/L2/TEL/30094Installation of Telecommunications Equipment and Systems (formerly NR/SP/TEL/30094)Iss 2 · clause-by-clause
  • NR/L2/TEL/30095Maintenance of Telecoms Equipment for Radio Electronc Tokenless BlockIss 2
  • NR/L2/TEL/30097Maintenance of Lineside Telephone Plug Points and Tunnel Emergency Communication systems (Pinch Wires)Iss 2
  • NR/L2/TEL/30098Testing and Commissioning of Telecommunications Equipment and Systems (Formerly NR/SP/TEL/30098)Iss 3 · clause-by-clause
  • NR/L2/TEL/30103Testing Requirements - Public Emergency Telephone System (PETS) (formerly NR/WI/TEL/30103)Iss 2
  • NR/L2/TEL/30105Compliance with Fixed Telecoms Network Design Criteria (formerly NR/SP/TEL/30105)Iss 2
  • NR/L2/TEL/30125Communications with Electrical Control Rooms - ETD Network Testing SpecificationIss 1
  • NR/L2/TEL/30126Specification For The Maintenance Of Telecoms AnalogueIss 1
  • NR/L2/TEL/30127GSM-R Air Interface Functionality, Availability Management and Compliance ValidationIss 4 · clause-by-clause
  • NR/L2/TEL/30130Customer & Operational Information Systems (Formerly NR/SP/TEL/30130)Iss 4
  • NR/L2/TEL/30132Asset Management of Station Information and Surveillance Systems (SISS)Iss 1
  • NR/L2/TEL/30134Design and Installation Requirements for Public Announcement, Voice Alarm and Long Line Public Announcement SystemsIss 2
  • NR/L2/TEL/30135Video Surveillance Systems (VSS)Iss 6
  • NR/L2/TEL/30136Testing Requirements - Security CCTVIss 1
  • NR/L2/TEL/30141Tunnel Emergency Communication Wire Product SpecificationIss 1
  • NR/L2/TEL/30143Line Side Telephones Product SpecificationIss 1 · clause-by-clause
  • NR/L2/TEL/30146Product Specification for GSM and GSM-R ModemsIss 2
  • NR/L2/TEL/30147Product Specification for Wireless Connectivity SolutionsIss 1
  • NR/L2/TEL/30151Design and installation of station cablingIss 1 · clause-by-clause
  • NR/L2/TEL/30156Functional Requirements for Safety Related Communications Equipment for On Track Plant WorkingIss 1
  • NR/L2/TEL/30160Specification for Loose-Tube Optical Fibre Network DesignIss 5 · clause-by-clause
  • NR/L2/TEL/30161Supply of Optical Fibre Patchcord and Pigtail AssembliesIss 1 · clause-by-clause
  • NR/L2/TEL/30176Telecoms Asset Data RequirementsIss 01 · clause-by-clause
  • NR/L2/TEL/30179Design of Fibre Distribution Systems and Fibre End-User ConnectionsIss 2 · clause-by-clause
  • NR/L2/TEL/30182Security of Telecoms Digital SystemsIss 3 · clause-by-clause
  • NR/L2/TEL/30184Specification for Network Rail Telecoms systems architecture, technical design and test assuranceIss 1 · clause-by-clause
  • NR/L2/TEL/30185Principles for Operational Telecommunications, Signalling and E&P Sub-Access Internet Protocol NetworksIss 1 · clause-by-clause
  • NR/L2/TEL/30200Competence in Professional Telecommunications EngineeringIss 1 · clause-by-clause
  • NR/L2/TEL/30200/Mod01Competence and Training in Telecommunications Project EngineeringIss 1 · clause-by-clause
  • NR/L2/TEL/30400GSM-R for ETCS Traffic ManualIss 1 · clause-by-clause
  • NR/L2/TEL/30400/001GSM-R Capacity Assessment for ETCS TrafficIss 1 · clause-by-clause
  • NR/L2/TEL/30400/002GSM-R Availability Assessment for ETCS TrafficIss 1 · clause-by-clause
  • NR/L2/TEL/31001Telecom maintenance testing & fault investigation processIss 4
  • NR/L2/TEL/31002Maintenance of Telecommunications EquipmentIss 5
  • NR/L2/TEL/31107Limits and Test Method of Induced Voltages on Telecommunications Cables due to Electrification SystemsIss 2 · clause-by-clause
  • NR/L2/TEL/31108Specification for B.T. Circuits – Procurement RequirementsIss 3
  • NR/L2/TEL/31111Design and Installation Requirements for Driver Only Operation (Passenger) SystemsIss 3
  • NR/L2/TEL/31114Product Specification for Telecoms Jumper WireIss 1 · clause-by-clause
  • NR/L2/TEL/31200Design of High-Capacity Fibre Cable SystemsIss 1 · clause-by-clause
  • NR/L2/TEL/30030Managing the Optical Requirements of CCTV Systems for Driver Only Operation (Passenger) (formerly RT/E/P/30030)Iss 5 · clause-by-clause
  • NR/L2/TEL/30047Management of Safety Related Reports for Telecoms FailuresIss 5 · clause-by-clause
  • NR/L2/TEL/30072Specification for the Maintenance of DOO(P) CCTV, Guard-Assisted CCTV and DOO Mirror Systems (formerly NR/WI/TEL/30072)Iss 3 · clause-by-clause
  • NR/L2/TEL/30080Specification for the Maintenance of Whiteley PETS (formerly NR/WI/TEL/30080)Iss 3 · clause-by-clause
  • NR/L2/TEL/30083Specification for the Maintenance of Telephone Instruments in Operational Buildings (formerly NR/WI/TEL/30083)Iss 2 · clause-by-clause
  • NR/L2/TEL/30084Specification for the Maintenance of Lineside Telephones and Tail Cables (formerly NR/WI/TEL/30084)Iss 3 · clause-by-clause
  • NR/L2/TEL/30085Specification for the Maintenance of Electronic PABX Concentrators (formerly NR/WI/TEL/30085)Iss 2 · clause-by-clause
  • NR/L2/TEL/30110Specification for the Maintenance of CCTV Cameras (formerly NR/WI/TEL/30110)Iss 2 · clause-by-clause
  • NR/L2/TEL/30111Specification for the Maintenance of CCTV Monitoring Equipment (formerly NR/WI/TEL/30111)Iss 2 · clause-by-clause
  • NR/L2/TEL/30113Specification for the Maintenance of Clocks (formerly NR/WI/TEL/30113)Iss 2 · clause-by-clause
  • NR/L2/TEL/30114Specification for the Maintenance of CIS Control Equipment (formerly NR/WI/TEL/30114, Maintenance of CIS Computers)Iss 2 · clause-by-clause
  • NR/L2/TEL/30115Specification for the Maintenance of CCTV Video Recorders (formerly NR/WI/TEL/30115)Iss 2 · clause-by-clause
  • NR/L2/TEL/30117Specification for the Maintenance of Help Points (formerly NR/WI/TEL/30117)Iss 2 · clause-by-clause
  • NR/L2/TEL/30118Specification for the Maintenance of LCD, LED and TFT Displays (formerly NR/WI/TEL/30118)Iss 2 · clause-by-clause
  • NR/L2/TEL/30119Specification for the Maintenance of Public Address PCs (formerly NR/WI/TEL/30119)Iss 2 · clause-by-clause
  • NR/L2/TEL/30120Specification for the Maintenance of Public Address Systems (formerly NR/WI/TEL/30120)Iss 2 · clause-by-clause
  • NR/L2/TEL/30121Specification for the Maintenance of Recorded Announcement Equipment (formerly NR/WI/TEL/30121)Iss 2 · clause-by-clause
  • NR/L2/TEL/30122Specification for the Maintenance of Electronic PABX Switches (formerly NR/WI/TEL/30122)Iss 2 · clause-by-clause

Standard

Level 3 work instruction

Product specification

  • NR/PS/TEL/00014Telecommunications Optical Fibre Cable (formerly RT/E/PS/00014)Iss 4 · clause-by-clause
  • NR/PS/TEL/00015Unit Twin Copper Telecommunications Cable (formerly RT/E/PS/00015)Iss 3 · clause-by-clause
  • NR/PS/TEL/00025Synchronous Digital Hierarchy Multiplexing Equipment (formerly RT/E/PS/00025)Iss 2
  • NR/PS/TEL/00026Primary PCM Multiplex Equipment (formerly RT/E/PS/00026)Iss 2
  • NR/PS/TEL/00027Digital Subscriber Line Transmission Equipment (formerly RT/E/PS/00027)Iss 2
  • NR/PS/TEL/30107Telecoms Lineside Copper Cable EnclosuresIss 1 · clause-by-clause
  • NR/PS/TEL/31102Screening Conductor For The Immunisation Of Telecommunications CablesIss 1 · clause-by-clause

Work instruction

  • NR/WI/TEL/00113Wiring of Copper Telecoms Terminations (formerly RT/E/WI/00113)Iss 1 · clause-by-clause
  • NR/WI/TEL/30102Testing Requirements - Operational Voice RecordersIss 1
  • NR/WI/TEL/30103Testing Requirements - Public Emergency Telephone SystemIss 1
  • NR/WI/TEL/30104Testing Requirements - Signal Box ConcentratorIss 1

Specification (legacy numbering)

  • NR/SP/TEL/30032Positioning and Labelling of Lineside Telephones (formerly RT/E/S/30032)Iss 3 · clause-by-clause
  • NR/SP/TEL/30035Telecoms Network Terminating Points (formerly RT/E/S/30035)Iss 2 · clause-by-clause
  • NR/SP/TEL/50016Methodology for the Demonstration of Compatibility with Telecommunications Systems (formerly NR/GN/TEL/50016)Iss 3
  • NR/SP/TEL/30031Signal Box Telephone Concentrator System - Design and Application Requirements (formerly RT/E/S/30031)Iss 2 · clause-by-clause
  • NR/SP/TEL/11189Testing Telephones at Level Crossings (formerly RT/E/S/11189)Iss 3 · clause-by-clause
  • NR/SP/TEL/30023Optical Requirements of CCTV Systems for Driver Only Operation (Passenger) (formerly RT/E/S/30023)Iss 3 · clause-by-clause

FTN & GSM-R programme document

FTN design & development specification (D&D)

  • SP FTN (D&D) 003Screening Conductors for Immunisation of Telecommunications CablesIss 2 · clause-by-clause
  • SP FTN (D&D) 004Renovation and Construction of New Cable RouteIss 9.2 · clause-by-clause
  • SP FTN (D&D) 005Jointing, Terminating and Testing Optical Fibre and Copper Telecommunications CablesIss 4.6 · clause-by-clause
  • SP FTN (D&D) 006Joint, Termination and Test Aluminium Screening ConductorsIss 1.1 · clause-by-clause
  • SP FTN (D&D) 007Hand Pulling of Telecommunications CablesIss 4.2 · clause-by-clause
  • SP FTN (D&D) 008Network Design Manual for Optical FibreIss 4.2 · clause-by-clause
  • SP FTN (D&D) 009Network Design Manual for Copper CableIss 4.5 · clause-by-clause
  • SP FTN (D&D) 010Telecommunications Optical Fibre CablesIss 1 · clause-by-clause
  • SP FTN (D&D) 011Optical Fibre Terminations and AccessoriesIss 2 · clause-by-clause
  • SP FTN (D&D) 012Optical Fibre Tail Cable AssembliesIss 1 · clause-by-clause
  • SP FTN (D&D) 013Specification for Lineside Cabinets Without Climate ControlIss 1 · clause-by-clause
  • SP FTN (D&D) 015Environmental Testing of Copper Cable Termination PracticesIss 1 · clause-by-clause
  • SP FTN (D&D) 016Specification for Identification and Labelling of Network ElementsIss 2.3 · clause-by-clause
  • SP FTN (D&D) 017Specification for As-Built Records for Cables and Cable RouteIss 4.1 · clause-by-clause
  • SP FTN (D&D) 020Pre-terminated Optical Fibre Cable AssembliesIss 1 · clause-by-clause

FTN survey specification

FTN typical drawing (D&D)