Guidance note
NR/GN/TEL/31201
Telecommunications Maintenance Testing: Maintenance and Missing Equipment Test Plans (formerly RT/E/C/31201)
Issue 1, December 2002
Code of practice holding the telecoms maintenance test plans (TMT) used after repairing or replacing operational telecoms kit, and plans for replacing missing equipment: index of equipment to plan, and plans for cables, concentrators, DOO CCTV, power, radio, recorders, telephones and transmission.
Clause map — what each clause deals with
| 1 | Purpose | Provides test plans for repair or replacement of operational telecoms equipment and for replacing missing equipment |
| 2 | Scope | Used when replacing kit or missing items on covered systems, by staff certified in maintenance testing and competent on that equipment |
| 3 | Responsibilities | The engineer or technician tests the replaced equipment or parts using the plans in the appendix |
| 4 | Flow Chart | States there is no dedicated flow chart for maintenance testing |
| 5 | Procedure | Procedure is in RT/E/S/31001 and RT/E/C/31200; some plans may be used within signalling maintenance testing (RT/E/S/11231) |
| 6 | Records | Record retention follows RT/E/S/31001 and RT/E/C/31200 or the signalling equivalent |
| 7 | Reference Documentation | Lists the parent specification and related codes |
| 8 | Definitions | Defines terms such as like-for-like replacement, operationally equivalent, missing equipment, temporary diversion, test and validation |
| 9 | Index of Operational Telecommunications Systems and Equipment Test Plans | Table matching each equipment type to its test plan, marking items that need no plan, plus a separate index of missing equipment plans |
| Appendix CAB001-CAB006 | Cable test plans | Plans for tail cables, copper cable lengths and joints (needs independent check), terminations, fibre sections, screening conductors and earthing, and circuit diversions or jumpers |
| Appendix CON001-CON005 | Concentrator and PETS test plans | Plans for replacing concentrator parts, whole concentrators (needs independent check), electronic PABX concentrator parts and PETS components |
| Appendix DOO001-DOO006 | DOO CCTV test plans | Plans for replacing or adjusting cameras, realigning cameras, coax cables, monitors, train detection triggers and mirrors |
| Appendix POW001-POW003 | Power test plans | Plans for replacing secondary cells or batteries, transformer rectifiers or chargers, and inverters or UPS |
| Appendix RAD001-RAD009 | Radio test plans | Plans for aerials, base stations, leaky feeders and amplifiers, CSR management and signaller processors, NRN control, signaller terminals and RETB interface racks |
| Appendix REC001 | Replace a Voice Recorder | Plan for checks after a full voice recorder replacement |
| Appendix TEL001-TEL008 | Telephone test plans | Plans for direct line and dial telephones, selective telephones (STC and Western Region) and handsets or cords |
| Appendix TRA001-TRA010 | Transmission and data test plans | Plans for non-programmable mux or line systems, programmable transmission (needs independent check), data comms kit such as modems, timeslot sharing units and plug-in line cards |
| Appendix MISS001-MISS015 | Missing Equipment Test Plans | Plans for replacing missing telephones, bells, tail cables, wires, local cabling, termination blocks, jumpers, DOO cameras and monitors, batteries, fuses, aerials, PCBs, selective units and auto diallers |