CH 25.pdf

CHAPTER XXV FAULT CONTROL PROCEDURES 25.1 INTRODUCTION: This chapter discusses the Fault Control Procedures for Railway’s Telecommunication Network both at Divisional Level as well as Zonal Level. In a typical Ra...

CHAPTER XXV FAULT CONTROL PROCEDURES 25.1 INTRODUCTION: This chapter discusses the Fault Control Procedures for Railway’s Telecommunication Network both at Divisional Level as well as Zonal Level. In a typical Railway Telecom Network scenario, following types of Telecom Network co-exist Transmission - Optical Fibre Cable Network - Telecom Quad Cable Network - Local Area Networks - PIS Networks in a station - CCTV Network Switching - Electronic Telephone Exchanges - IP Telephone Exchanges Data Networks/Others - Mobile Train Radio Communication system - VHF/UHF Simplex Trans-receivers - FOIS, UTN, Railnet, Data logger Network - WiFi system It is indeed very necessary to establish well defined Fault Control Procedures for satisfactory maintenance of such diverse Railway Telecommunication Networks so as to meet the demanding requirements of Indian Railways in the 21st Century. 25.2 TYPICAL TELECOM FAULT CONTROL SET-UP ON A RAILWAY Typical telecom fault control set-up on a Railway shall consist of the following: 1. ZONAL S&T CONTROL SET-UP 2. DIVISIONAL TELECOM FAULT CONTROL SET-UP The Zonal S&T Control Set-up shall be one for the entire Zonal Railway. The Divisional Telecom Fault Control Set-up shall be established in each Division of the Zonal Railway. Indian Railways Telecom Manual - 2021 Page 352 25.3 ZONAL S&T CONTROL SET-UP 25.3.1 It shall be manned by SSE/JE (Telecom) in a general shift. Three SSE/JE (Telecom) shall be earmarked and should man the Zonal S&T Control set-up round-the-clock in case of emergencies. 25.3.2 The Zonal S&T Control Room shall also function as an Emergency Telecom Control Room in case of Emergencies requiring immediate telecom facilities/restoration. The emergencies may consist of the following: - Major Rail Accidents - Cyclones - Breaches 25.3.3 When the Zonal S&T Control Room functions as the Emergency Telecom Control Room, the Divisional Telecom Fault Control Rooms of the affected Division(s) shall report their positions to the Zonal S&T Control Room which in turn shall advise the Telecom Officials at HQs of the latest developments. 25.3.4 The Zonal Telecom Fault Control Room shall function under the direct control of Dy. Chief Signal & Telecom Engineer (Tele) or any other officer designated by the Chief Communication Engineer of the Railway. 25.4 DIVISIONAL TELECOM FAULT CONTROL SET-UP 25.4.1 The Divisional Telecom Fault Control Set-up shall monitor all telecom networks over the Division and shall be headed by a Senior Section Engineer (Telecom) in a general shift. Adequate number of Senior Section Engineers (Telecom)/ Jr. Engineers (Telecom) and Technicians assisted with helpers shall monitor the Fault Control Room round-the-clock. 25.4.2 All the Telecom Networks in 25.1 shall be monitored by the Divisional Telecom Fault Control Room. 25.5 A. OFFICE TOOLS/TELECOM FACILITIES TO BE PROVIDED AT THE ZONAL S&T CONTROL ROOMS Following Office Aids/Telecom Facilities shall be provided for satisfactory functioning of the S&T Control Rooms - AUDIO/VIDEO conference facilities with Divisions and Railway Board. - Zonal level NMS of Various Networks. - PC system with LAN connection, printer. - The up-to-date network diagrams of all the networks monitored should be available for ready reference. - Hotline Communications between various Telecom Fault Control Rooms. 25.6 B. OFFICE TOOLS/TELECOM FACILITIES TO BE PROVIDED AT THE DIVISIONAL TELECOM FAULT CONTROL ROOMS Indian Railways Telecom Manual - 2021 Page 353  Following Office Aids/Telecom Facilities shall be provided for satisfactory functioning of the Telecom Fault Control Rooms - AUDIO/VIDEO conference facilities with Divisions and Railway Board - Divisional level NMS of Various Networks - PC system with LAN connection, printer - Network Monitoring System of all the Networks monitored by them. - Control patching facility - The up-to-date network diagrams of all the networks monitored should be available for ready reference. - Proper flow diagram to trace faults in various Telecom systems should be available - Hotline Communication between various Telecom Fault Control Rooms 25.7 PROCEDURE FOR FAULT REPORTING TO ZONAL S&T CONTROL ROOM & ITS FUNCTIONS 25.7.1 Each of the Divisional Fault Control Rooms shall report their daily positions to the Zonal S&T Control Room by the following communication means: - By telephone - By common shared folders in network - By E-Mail - By other convenient electronic IT platforms PCSTE should approve the mode of regular communication to be followed by field telecom staff / divisional control room for reporting/sending/informing to Zonal control room. All emergency reporting from field/divisional control room should be immediately through telephone. 25.7.2 Any unusual occurrences, any link breakdowns or Channel Interruptions of vital circuits e.g. PRS data circuits, Inter-Railway or Inter Division Administrative Trunk Circuits, Control Hotlines from Zonal Hqs to Divisions, shall invariably be reported to Zonal Telecom S&T Room immediately on their occurrence on Telephone followed by other approved means 25.7.3 Monthly, Quarterly & Annual Telecom System Performance Reports of the Division shall be communicated to the Zonal Telecom Fault Control Room, as per specified proforma. 25.7.4 A uniform Application Program shall be loaded on the Computers in every S&T Control Room at Zonal Levels. This shall ensure transparency of Data Transmission between Fault Control Rooms of the Divisions. 25.7.5 The Zonal S&T Control Room shall compile Monthly, Quarterly & Annual Telecom System Performance Reports of the Railway as per specified proforma, for reporting to Railway Board. Indian Railways Telecom Manual - 2021 Page 354 25.7.6 When during emergencies, the Zonal S&T Control Room functions as an Emergency Telecom Control Room, following additional functions shall get automatically assigned: - Maintaining very close coordination with the Divisional Telecom Fault Control Room. - Liasioning with RCIL/BSNL/MTNL/other service providers at Hqs, if required, for providing additional telecom facilities. For this, Telephone Nos. with Designations of concerned RCIL/BSNL/MTNL/ other service providers officials shall be kept up-to-date in the Control Room. - Mobilising additional telecom resources as per site requirements. 25.7.7 A Disaster Management Plan detailing out the action to be taken in Emergencies shall be prominently displayed in the Control Room. 25.7.7 S&T Control should ensure that minimum essential telecom needs with divisions and zones are provided at the accident site in least time. 25.8 PROCEDURE FOR FAULT REPORTING TO DIVISIONAL TELECOM FAULT CONTROL ROOM & ITS FUNCTIONS 25.8.1 Telecom Supervisors in the Division shall report the periodic, daily or unusual occurrence report of the Telecom gears under them to the Divisional Control Room by the following communication means: - By telephone - By common shared folders in network - By E-Mail - By other convenient electronic IT platforms SrDSTE/Co should approve the mode of regular communication to be followed by field telecom staff for reporting/sending/informing to Divisional control room. All emergency reporting from field should be immediately through telephone. 25.8.2 The Divisional Telecom Fault Control Room shall compile the Monthly, Quarterly & Annual Communication System Performance Reports of the Division as per specified proforma for communicating to the Zonal Control Room. 25.8.3 Liasioning with RCIL/BSNL/MTNL/ other service providers at Divisional level, if required, for providing additional telecom facilities. For this Telephone Nos. with Designations of concerned RCIL/BSNL/MTNL/ other service providers officials, shall be kept up to date in the Control Room. 25.8.4 Mobilising additional telecom resources as per site requirements in case of emergencies. Indian Railways Telecom Manual - 2021 Page 355 25.8.5 A uniform MIS Program shall be provided in every Telecom Fault Control Room at Divisional Level and S&T control room at Zonal HQ. This shall ensure transparency of Data Transmission between Fault Control Rooms. 25.8.6 A disaster Management Plan detailing out the action to be taken in Emergencies shall be prominently displayed in the Control Room. 25.8.7 Telecom Control should ensure that minimum telecom needs with divisions and zones are provided at the accident site in least time. -x-x-x- Indian Railways Telecom Manual - 2021 Page 356