NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR ... · Issue No. 02 Issue Date: 03/03/18...

NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06 Index Issue No. 02 Issue Date: 03/03/18 Compliance Date: 31/05/18

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The issue status of each SMT is detailed in the NR/L3/SIG/11231 section and in the header of the individual SMT. This section contains telecom maintenance test plans that might be undertaken by Signal Technicians. Subject Number Issue Telecoms Maintenance Testing and Fault Investigation Part06 01 Telecom Maintenance Test Plan: Replace or Repair a Telecoms Tail Cable Part06/CAB001 01

Telecom Maintenance Test Plan: Replace a Telephone Part06/TEL001 01 Telecom Maintenance Test Plan: Replace a Selective Telephone Part06/TEL002 01

Telecom Maintenance Test Plan: Replace a Telephone Handset/Cord Part06/TEL008 01

Replace a Power supply module and battery pack Part06/IR67 01 Replace a Base station radio modules Part06/IR68 01 Replace a system control radio rack card/module Part06/IR69 01 Replace a RETB TPWS frequency converter Part06/IR70 01 Telecom Maintenance Test Plan: Missing Telephone, Telephone Handset or Handset Cord Part06/MISS001 01

Telecom Maintenance Test Plan: Missing Loud Sounding or Extension Bell Part06/MISS002 01

Telecom Maintenance Test Plan: Missing Telecoms Tail Cable Part06/MISS003 01

Telecoms Failure Investigation Test Guide: Telephones Part06/TELTFI001 01

End

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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06 Telecoms Maintenance Testing and Fault Investigation Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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General

Just as Signalling has its Maintenance Testing Handbook (NR/SMTH), so Telecommunications Engineering uses an equivalent document: NR/L2/TEL/31001, Operational Telecommunications – Maintenance Testing and Failure Investigation Process (TMT&FIP) for reinstating previously working Telecommunications equipment to service and for thorough investigation of safety related failures.

Signalling Technicians in many parts of Network Rail do carry out first line maintenance on certain items of Telecommunications equipment on behalf of their Telecommunications Engineering colleagues. Where this happens, restoration work and safety failure investigation shall be undertaken to the Telecommunications Maintenance Testing Handbook (NR/TMTH). However, the equipment covered by the Telecommunications Handbook is considerably broader in scope than the few items Signalling Technicians are authorised to maintain. Accordingly, an extract of NR/TMTH is included in this section. Contents are in Part 06/Index.

The Test Plans and Failure Investigation Test Guide cover the only Telecommunications equipment that Signalling Technicians are allowed to maintain, unless the Technicians are also qualified in the full Telecommunications Maintenance Testing and Failure Investigation Handbook

Telecom Failure Investigation

Note that SMTH documentation is used to record the outcome of testing / investigations undertaken by Signalling Technicians using the above Test Plans.

Guidance on when to use the telecom failure investigation guide Part 06/TELTFI001 is given in the guide itself.

If in doubt that the failure falls within the criteria listed above, it shall be escalated through the normal procedures.

NR/L2/TEL/31001 (NR/TMTH) is the primary standard for telecoms maintenance testing and supersedes the extracts contained in this section (Part 06) of NR/SMTH.

End



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/CAB001 Telecom Maintenance Test Plan: Replace or Repair a Telecoms Tail Cable Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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Before Installation Work

1. Check identity of existing cable by physically tracing or alternative methods.

2. Check for intermediate breakout points or terminations.

3. Check cable terminations are Not Damaged and Correctly Labelled.

4. Check that the replacement cable is Not Damaged and is Correct Type.

5. Check that tail cable to be worked on is fully Isolated.

6. Where cables are to be jointed, Check that all joint enclosure component parts are available and appropriate to the work.

After Installation Work

7. Check that the cable is Not Damaged, is Correctly Installed and protected to the appropriate standards.

8. Check all physical connections. Check that all cable connections are firm, robust and mechanically sound.

9. CONTINUITY TEST all cable conductors.

10. INSULATION TEST all cable conductors.

11. Check the cable has been adequately secured.

12. Check that the replacement tail cable has been Correctly Labelled.

13. Check any line fuses or links are replaced and any lightning protection is restored.

14. The Maintenance Test Plan/s for the equipment fed by the cable/s should be checked and any requirement marked with an asterisk “ “carried out.

End

Includes: Telecoms tail cables having a maximum of 4 conductors and of a telecoms type construction.

Excludes: Any other type of tail cable.

*** INDEPENDENCE EXEMPT ***



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/TEL001 Telecom Maintenance Test Plan: Replace a Telephone Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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1. Check that the replacement part is Correct Type (compatible with the telephone system) and is Not Damaged.

2. Check the mountings, brackets and fixings are in good operational condition.

3. Check the condition of all equipment, wiring and connectors.

4. Check the condition of any weatherproofing/protection used.

5. Check any telephone specific configuration settings are correct for application.


6. Check that any replacement component is Correctly Installed (securely fixed/safely mounted and electrically connected).

7. Check the telephone handset cord is Correctly Installed (properly secured and not in a position to be fouled).

8. Check any tail cable is Correctly Installed (properly secured and that all insulation is sound and the line jack connection box is properly secured.

9. Check all physical connections are correct and mechanically sound.

10. Check correct operation of call set–up in accordance with calling instructions pertinent to the telephone.

11. Check correct operation of engaged tone by calling a telephone that is already in use if appropriate to the system.

12. Check correct operation of sounder/bell by receiving a test call.

13. Check speech quality to ensure that speech level is acceptable.

14. Check that there is no noise or unwanted interference or excessive sidetone.

15. Check functionality for all telephones associated with the same service. This is essential at level crossings and point zones where multiple telephones are used.

16. Check that the telephone is Correctly Labelled.

Additionally for ETD Telephones

17. Check 999 call operation by making a test call.

End

Includes: Direct line telephones used for box to box, signal post, point testing and level crossing applications..

Excludes: STC selective and former Western Region sequence switch units, Any other type of telephone application




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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/TEL002 Telecom Maintenance Test Plan: Replace a Selective Telephone Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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Includes: STC selective and former Western Region sequence switch units..

Excludes: Direct line telephones used for box to box, signal post, point testing and level crossing applications, Any other type of telephone application



2. Check mountings, brackets and fixings are in good operational condition and safe to use.

3. Check the condition of all equipment, wiring, connectors and telephone labelling, where appropriate.


5. Check, Record, and, where practical, verify the existing configuration of cam settings and switch setting of the existing unit.



7. Check that the code for the telephone is correctly set and secure.

8. Check the telephone handset cord is Correctly Installed (properly secured and not in a position to be fouled).

9. Check any tail cable is Correctly Installed (properly secured).

10. Check all physical connections. Check that plug and cable connectors are firm, correctly connected and mechanically sound.

11. Check correct operation of call setup in accordance with calling instructions pertinent to the telephone.

12. Check replacement unit is Correctly Labelled.


14. Check that there is noise and unwanted interference.

15. Check with signaller that identity of calling SPT received at the signal box is correct.

End



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/TEL008 Telecom Maintenance Test Plan: Replace a Telephone Handset/Cord Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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1. Check that the replacement handset/cord is Not Damaged.

2. Check that if the replacement handset is Correct Type (if physically different to the existing handset, it is compatible with the handset cradle).

3. Check existing handset is Correctly Labelled (if appropriate).

4. Check condition of cord connectors, plugs and socket.


5. Check handset/cord is Correctly Installed.

6. Check all connections are secure and mechanically sound.

7. Functionally Test the handset for speech by making test calls.

8. Test functionality of the Press to Talk facility.

9. Check that the replacement handset has been Correctly Labelled (if appropriate).

End

Includes: Telephone handsets and telephone handset cord




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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/IR67 Replace a Power Supply Module and Battery Pack Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

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Includes: Power Supply Module and Battery Pack Excludes: RETB Base Station Radio Modules

This unit contains a 230V AC Supply. Battery packs (figure 1) used in the Invensys Modular Signalling System are very heavy. Correct Manual handling procedures should be used.

Figure 1 – Power Supply Module and Battery Pack

BEFORE INSTALLATION WORK 1. Check the replacement unit is not damaged and the correct type.

Correlation check connections to the site diagram. 2. Check existing cables and connections are not damaged/corroded and have safe

insulation. 3. Check existing cables and connections are correctly labelled. 4. Isolate main power supply and units as required.



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/IR67 Replace a Power Supply Module and Battery Pack Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

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AFTER RE-INSTALLATION WORK 5. Check replacement unit is correctly installed and secured.

6. Check all connections are replaced correctly to the diagram. 7. Check or arrange correctly labelling of the unit and connections. 8. Restore main power supply.

If the main AC supply has been lost during the work, Test (064) is to be completed after power resumption.

9. Check status of the battery and power supply module and normal indications are illuminated.

10. Carry out NR/SMS/Part B/Test 064. End



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/IR68 Replace a Base Station Radio Modules Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

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Includes: LINK Radio, CELL Radio and Site Interface modules Excludes: UPS, Power Supply and Battery Modules

Figure 1 – Base Station Radio Modules

BEFORE INSTALLATION WORK 1. Check the replacement unit is not damaged and the correct type. 2. Correlation check modules and connections to the site diagram.

3. Check existing cables and connections are not damaged and safe insulation.

4. Check existing cables and connections are correctly labelled.

5. Isolate power supply as required.



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/IR68 Replace a Base Station Radio Modules Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

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AFTER RE-INSTALLATION WORK 6. Check replacement module is correctly installed and secured. 7. Check all connections are replaced correctly to the diagram.

8. Check or arrange correctly labelling of the unit and connections.

9. Restore power supply.

10. Check replaced module’s normal indications are illuminated.

11. Connect Maintenance Laptop to Site Interface Unit and Undertake systems

configuration checking correct Network ID and unit type.

12. Carry out NR/SMS/Part B/Test 066 as applicable.

End



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/IR69 Replace a system Control Radio Rack Card/Module Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

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Includes: RETB System Control Radio Rack Card/Module

Excludes: RETB Base Station Radio Modules, UPS, Power Supply and Battery Modules

Anti-static precautions shall be observed. Cards can be plugged and unplugged with voltage applied when replacing cards. It is recommended that you remove only one card at a time from the system, as this will prevent one card being mistaken for another.

Figure 1 – RETB System Control Radio Rack

BEFORE INSTALLATION WORK 1. Check the replacement cards/modules are not damaged and the correct type. 2. Correlation check cards/modules and connections to the site diagram.

3. Check existing cables and connections are not damaged and safe insulation.

4. Check existing cables and connections are correctly labelled.

5. Isolate power supply as required.



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/IR69 Replace a system Control Radio Rack Card/Module Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

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AFTER RE-INSTALLATION WORK 6. Check replacement card/ module is correctly installed and secured. 7. Check all connections are replaced correctly to the diagram.

8. Check or arrange correctly labelling and connections.

9. Restore power supply.

10. Check replaced card/module’s normal indications are illuminated. 11. Carry out NR/SMS/Part B/Test 063.

End



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 04/IR70 Replace a RETB TPWS Frequency Converter Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

Includes: RETB TPWS Frequency Converter

Excludes: RETB Base Station Radio Modules, RETB TRCU/TRCM Modules, RETB System Control Radio Rack Card/Module

Front View Rear View with PSU

Figure 1 – RETB TPWS Frequency Converter

BEFORE INSTALLATION WORK 1. Check the replacement unit is not damaged and the correct type.

2. Correlation check connections to the site diagram. 3. Check existing cables and connections are not damaged/corroded and safe

insulation. 4. Check existing cables and connections are correctly labelled. 5. Isolate power supply to the unit as required.



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 04/IR70 Replace a RETB TPWS Frequency Converter Issue No. 01 Issue Date: 03/03/18 Compliance Date: 31/05/18

AFTER RE-INSTALLATION WORK 6. Check replacement unit is correctly installed and secured. 7. Check all connections are replaced correctly to the diagram. 8. Check or arrange correctly labelling of the unit and connections. 9. Restore power supply.

If the main AC supply has been lost during the work, Test (064) is to be completed after power resumption.

10. Configure required channels using switch settings. Switch covers shall be retained and replaced securely.

11. Check status of the LED indications. (The centre LED will blink periodically to show that the unit is operational).

12. Carry out NR/SMS/Part B/Test 066.

End



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part M06/MISS001 Telecom Maintenance Test Plan: Missing Telephone, Telephone Handset or Handset Cord Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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BEFORE REPLACEMENT

1. Check for evidence on site and by reference to diagrams or records that the telephone previously existed. If no evidence is present consult with the Signal & telecom maintenance Engineer.



4. Check the condition of all equipment, wiring and connections.


6. Check that any existing labelling is correct.

7. Check that if a handset is being replaced it is Correct Type (physically compatible with the handset cradle).

AFTER REPLACEMENT


9. Check the handset cord is Correctly Installed (properly secured and not in a position to be fouled, where required).

10. Check any tail cable is properly Correctly Installed (secured and that all insulation is sound and the line jack connection box is properly secured).


12. Check dial tone is present if appropriate to the system.

13. Check correct operation of call set-up in accordance with calling instructions pertinent to the telephone.

14. Check correct operation of sounder/bell by receiving a test call.


16. Check that there is no noise or unwanted interference.

17. Check functionality for all telephones associated with the same service. This is essential at level crossings and point zones where multiple telephones are used.

18. Check that the telephone is Correctly Labelled.

19. Check press to talk functionality of handset if provided.

Includes: Direct line telephones used for box to box, signal post, point testing and level crossing applications..

Excludes: Sequence switch telephones, selective telephones, Auto diallers




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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part M06/MISS001 Telecom Maintenance Test Plan: Missing Telephone, Telephone Handset or Handset Cord Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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Additionally for ETD telephones

20. Check 999 call operation by making a test call.

End



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part M06/MISS002 Telecom Maintenance Test Plan: Missing Loud Sounding or Extension Bell Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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BEFORE REPLACEMENT

1. Check for evidence on site and by reference to diagrams or records that a loud sounding or extension bell previously existed. If no evidence is present consult with the Signal & Telecom Maintenance Engineer.

2. Check that the replacement part is Not Damaged and is Correct Type (compatible with that previously used).


4. Check the condition of all equipment, wiring and connections.


6. Check that any existing labelling is correct.

AFTER REPLACEMENT

7. Check the replacement component is Correctly Installed (securely fixed/safely mounted and electrically connected).

8. Check the connecting cable is Correctly Installed (properly secured and that all insulation is sound).


10. Check correct operation of call set-up in accordance with calling instructions pertinent to the telephone.

11. Check associated telephones and the loud sounding or extension bell are functioning by making and receiving a test call.

12. Check functionality for all telephones associated with the same service. This is essential at level crossings and point zones where multiple telephones are used. This shall include the use of auto-diallers.

End

Includes: Loud sounding or extension bell associated with a telephone




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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part M06/MISS003 Telecom Maintenance Test Plan: Missing Telecoms Tail Cable Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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BEFORE REPLACEMENT

1. Check site to establish that the tail cable was previously fitted.

2. Check from records or other means the existing allocation of circuits.

3. Check that the replacement cable is Not Damaged and is Correct Type.

4. Check cable terminations and labelling are correct.

5. Check that circuit to be worked on is fully Isolated.

AFTER REPLACEMENT

6. Check that the cable is Not Damaged, is Correctly Installed and protected to the appropriate standards.

7. Check all physical connections. Check that all cable connections are firm, robust and mechanically sound.

8. CONTINUITY TEST all cable conductors.

9. INSULATION TEST. all cable conductors

10. Check the cable has been adequately secured.

11. Check that the replacement tail cable has been Correctly Labelled.

12. Check any line fuses or links are replaced and any lightning protection is restored.

13. Refer to the relevant Maintenance Test Plans for the operational equipment/systems affected by the tail cable replacement work and carry out steps marked with an asterisk “ “.

End

Includes: Telecoms tail cables having a maximum of 4 conductors and of a telecoms type construction.

Excludes: Any other type of tail cable.




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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR/SMTH/Part 06/TELTFI001 Telecoms Failure Investigation Test Guide: Telephones Issue No. 01 Issue Date: 05/03/11 Compliance Date: 03/09/11

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Where the failure applies to telephones provided for level crossings, signal posts or other emergency / safety applications this may constitute a high risk SRTF because the designs of telephone instruments generally do not permit a fail safe condition when faults occur.

Non Destructive Tests

N01 Check for damaged or missing equipment.

N02 Check security of associated equipment, cables, location cupboards and relay rooms.

Destructive Tests

D01 Check if the telephone operates correctly.

D02 On Selective SPT systems, Check that the coding is correct and that the encoding device is secure.

D03 CONTINUITY TEST cables, links and jumpers.

D04 Check the tail cable or local wiring for damage.

D05 Check for any missing, links or jumpers.

D06 Replace the telephone or associated equipment if it does not work correctly.

D07 Check the telephone label is in place, compliant and legible.

Other Considerations

01 Care shall be exercised when using manufacturer’s handbooks to avoid inadvertently carrying out destructive testing before non-destructive testing is completed.

End

Includes: Noisy speech, Bell / Sounder not working, Unable to make outgoing calls, Unable to hear properly, Crosstalk or overhearing.

*** ESCALATION EXEMPT ***



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NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR ... · Issue No. 02 Issue Date: 03/03/18...

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Transcript of NR/L3/SIG/11231 Signal Maintenance Testing Handbook NR ... · Issue No. 02 Issue Date: 03/03/18...