Indian Railways Telecom Manual 2021 PDF

भारत सरकार GOVERNMENT OF INDIA भारतीय रे ल INDIAN RAILWAYS दूरसंचार नियमावली TELECOM MANUAL 2021  INDIAN RAILWAYS TELECOM MANUAL 2021 Indian Railways Telecom Manual - 2021 Page 1 Indian Railways Telecom Manual - 2021 Page 2 India...

भारत सरकार GOVERNMENT OF INDIA भारतीय रे ल INDIAN RAILWAYS दूरसंचार नियमावली TELECOM MANUAL 2021  INDIAN RAILWAYS TELECOM MANUAL 2021 Indian Railways Telecom Manual - 2021 Page 1 Indian Railways Telecom Manual - 2021 Page 2 Indian Railways Telecom Manual - 2021 Page 3  Index Chapter Chapter Page Number Name Number 1. ORGANISATION OF THE SIGNAL & TELECOMMUNICATION 5 DEPARTMENT 2. ROLE OF PTCC AND PTCC CLEARANCES 8 3. ROLE OF WPC AND SACFA CLEARENCES 20 4. COMMUNICATION REQUIREMENTS FOR NEW 43 STATIONS/SECTIONS 5. TRAIN TRAFFIC CONTROL 45 6. VIDEO SURVEILLANCE SYSTEM 59 7. LINE PLANT SYSTEMS - UNDERGROUND COPPER CABLE 72 8. IP-MPLS 83 9. TELEPHONE EXCHANGE 92 10. QUAD CABLE BASED CONTROL COMMUNICATION 103 SYSTEM 11. RADIO COMMUNICATION (ANALOG/DIGITAL VHF) 108 12. ETHERNET RADIO 115 13. OPTIC FIBRE COMMUNICATION SYSTEM 117 14. DIGITAL MULTIPLEXING EQUIPMENT 180 15. DATA - NETWORK 194 16. POWER PLANT SYSTEMS FOR TELECOM INSTALLATIONS 206 17. ACCIDENT COMMUNICATION 219 18. MOBILE TRAIN RADIO COMMUNICATION - GSM-R 229 19. MOBILE TRAIN RADIO COMMUNICATION - LTE 253 20. SOUND DISTRIBUTION SYSTEM 277 21. PASSENGER INFORMATION SYSTEM 299 22. SATELLITE COMMUNICATION SYSTEM 309 23. PROTECTION OF TELECOM EQUIPMENTS AGAINST 318 LIGHTNING 24. INSTRUCTIONS FOR PROTECTION TO STAFF 341 25. FAULT CONTROL PROCEDURES 352 26. INSPECTION 357 27. PAINTING 360 28. DRAWINGS AND SPECIFICATIONS 363 29. BOOKS OF REFERENCE 368 30. Wi-Fi 371 31. IP ADDRESSING - IPV4/IPV6 376 32. TUNNEL COMMUNICATION 383 Indian Railways Telecom Manual - 2021 Page 4  CHAPTER I ORGANISATION OF THE SIGNAL AND TELECOMMUNICATION DEPARTMENT SECTION ‘A’- GENERAL 1.1 TELECOM ORGANISATION IN THE HEADQUARTER (a) The Principal Chief Signal & Telecommunication Engineer- The Principal Chief Signal & Telecommunication Engineer is the administrative and professional head of the Signal & Telecommunication Department and is responsible to the General Manager for its professional, efficient and economical working. b) The Chief Communication Engineer - The Chief Communication Engineer is responsible for systematic and professional working of the telecommunication system. He assists the Principal Chief Signal & Telecommunication Engineer in the administrative and professional work for all telecommunication matters. c) The Deputy Chief Signal & Telecommunication Engineer (Tele) - The Deputy Chief Signal & Telecommunication Engineer (Tele) assists the Principal Chief Signal & Telecommunication Engineer and Chief Communication Engineer in the administrative and professional work as per assigned job/work/power (authority) distribution. d) Senior Scale Officer (Tele) - Senior Scale Officers designated as Senior Signal & Telecommunication Engineer (Tele) are employed in the Headquarters Office of the Zonal Railway assists the Principal Chief Signal & Telecommunication Engineer and Chief Communication Engineer or the Deputy Chief Signal & Telecommunication Engineer (Tele) as per assigned job/work/power (authority) distribution. e) Assistant Signal & Telecommunication Engineer (Tele) - They assist higher level officers as per assigned job/work/power (authority) distribution. f) The Telecom organization is professionally managed with the assistance of SSE/JE/Telecom(s) and Ministerial staff employed at the Zonal Head Quarter for the purpose. Note: For the signal organization, please refer to Signal Engineering Manual, Part I. Indian Railways Telecom Manual - 2021 Page 5 1.2 ORGANISATION ON A DIVISION (a) Sr. DSTE is incharge of all the signal and telecommunication systems in the division. He works under the administrative control of the Divisional Railway Manager and Technical control of PCSTE. If there is more than one SG/JAG officer, the senior one among them is normally designated as Sr. DSTE/Co-ordination and is overall incharge of the S&T organisation of the Division. He is assisted by other S&T officers in SG/JAG/SS/JS and all officers discharge their duties as per preassigned job/work/power (authority) distribution. 1.2.1 TELECOMMUNICATION: (a) The telecommunication system on each division shall be divided into sections and each section is maintained by Sr. Section Engineer(Telecom)/Junior Engineer(Telecom). (b) On a division, each SSE/JE shall be responsible to the Sr. Divisional Signal & Telecom Engineer through DSTE/ADSTE, for efficient maintenance and correct installation of all telecommunication equipment under his charge. 1.2.2 DUTIES OF Sr. SECTION ENGINEER/JE (Tele): The essential duties of SSE/JE (Tele) are:- (a) Regular Inspection and efficient maintenance of all telecommunication equipments and systems such as, IP/MPLS networks , Telephone Exchanges including its line plants, Optical Fibre & systems , all telecom Quad cables & systems, wireless communication systems, Various Passenger amenities such as Train/Coach Indicator Boards, other Passenger Information Systems, Public address System, data communication system, Train Radio Communication, Wi-Fi, Video Surveillance Systems, Video Conferencing , any latest telecom system commissioned in their jurisdiction, power supply system and earthing of all telecom equipment etc. (b) Execution of all works involving alterations to the existing installations, and installations of new equipment, its adjustment and connections. (c) Carrying out periodical tests/measurements of Telecom systems independently and/or jointly with the officials of the BSNL/RailTel/Other Telecom Service Providers as the case may be. (d) Efficient maintenance of stores and establishment matters by SSE(Tele) Indian Railways Telecom Manual - 2021 Page 6 1.2.3 STAFF UNDER SSE(Tele): (a) Each SSE shall be assisted by one or more JE, Technicians and Helpers/Tele for maintenance. JE/Tele may work as sub-sectional in charge. The strength of JE, Technicians and Helpers/Tele shall be fixed in accordance to the yardstick and local conditions/work load. (b) Where railway’s underground telecommunication cables including Optical Fibre exist, a cable break-down transport such as a pick up van shall be provided. An emergency gang with full complement of cable jointing materials, tools and testing equipment should be available with the break-down vehicle. -x-x-x- Indian Railways Telecom Manual - 2021 Page 7  CHAPTER II ROLE OF PTCC AND PTCC CLEARANCES 2.1 Power and Telecommunication Co-ordination Committee (PTCC) is a central standing committee for co-ordination of Power and Telecommunication system. The committee was formed by the Government of India in the year 1949.The objective of the PTCC is to ensure the safety of telecommunication equipment and precious human lives of personnel working in the concerned organizations as also those working in the close vicinity of power transmission line. The role of the committee is to deal with route approval for all new power lines. The PTCC have issued guidelines and manuals from time to time for preparation of proposals for clearance. The norms are reviewed by PTCC to affect changes in line with the technological advancements and bringing safety standards. The clearance of this committee is required before energization of new power lines of 11KV and above, which is given after obtaining clearances from the Railway/Telecom having lines in the area. 2.2 Various committees connected with Power and Telecommunication Co- ordination: i. Central Standing Committee: This consists of two representatives from DOT and two from Central Electricity Authority (CEA).This was set up by the high level committee to look into estimates, which have resulted in delay in settling re-engineering cases. ii. High Level Committee: This is a committee at the level of secretaries or Chairman/Members of the Board from Power and Telecommunication sectors. The committee is assisted by officers from the two sides. Cases where no consensus could be arrived at the level of the central PTCC are referred to this committee. Officers from the Railways are invited when there are issues involving them. iii. Central PTCC: This consists of members from the CEA, DOT, Railways and the Army. The composition of the committee is given in Annexure ‘A’. The basic functions of this committee are: a) To consider all matters relating to adverse effect of power lines on telecom lines. b) To consider specific cases of route approval of power lines exceeding 33 KV and telecom lines. c) To consider and adopt new protective measures to minimize the cost of protection. iv. State Level PTCC: The present membership of the State Level PTCC consists of officers of Junior Administrative Grade from the concerned SEB, Telecom Circle, Railways and Defence. The composition of the committee is given in Annexure ‘B. The main function of this committee are: a) To review the progress of route approval cases of 11 KV lines dealt with by Telecom District Engineers. Indian Railways Telecom Manual - 2021 Page 8  b) To consider route approval cases up to service voltages of 33 KV. c) To consider re-engineering schemes for cases where induction exceeds the protection limit for GD tubes. d) To co-ordinate and watch the progress of installation of protective measures and re-engineering works and issue of energization certificates on completion of protective works. e) To consider violation of PTCC regulations and take suitable corrective measures. f) To discuss cases of power lines of 66KV and above held up for PTCC clearance Various Level of PTCC meeting: S. No. PTCC meeting Frequency/Periodicity 1 Central level Once in six months 2 State level Once in three months 3 SSA/Telecom District Once in three months 4 Divisional Level Once in two months 5 Sub divisional level Once in a month 2.3 (i). Central PTCC deals with cases of energization of power lines of 220KV and above. (ii). Cases of energization of power lines up to 132KV DC are processed at the state level. However, for cases of 33KV DC and above up to 132 KV DC, final PTCC clearance is to be given by DET(PTCC). For cases of above 11KV up to 33KV S/C clearance is given by State Level PTCC. For power lines of 11KV, clearance is given by DET of the Telecom Department. 2.4 Copies of route map drawn to a scale of 1 cm=0.5 km of the proposed electrical lines are to be submitted to the GM(S&T) of the concerned Railways in 4 copies. The Route Map should depict all topographical details including Railway lines, Railway stations, Rivers, Canals and important roads and other land marks like towns, villages with names etc.at a radius of 8 Km around the proposed power line. Topographical maps of the Survey of India are used for this purpose. The distances over which the details are to be marked, are as under: Capacity of Power Line Telecom assets to be marked HT (High Tension power line) 11 KV 3 Kms on either side of proposed power line 22 KV 5 Kms on either side of proposed power line 33 KV SC (Single Circuit) 5 Kms on either side of proposed power line EHT (Extra High Tension power line) 33 KV DC (Double Circuit 8 Kms on either side of proposed power line 66 KV SC and above 8 Kms on either side of proposed power line Indian Railways Telecom Manual - 2021 Page 9 2.5 On receipt of the power line route maps, Railways shall check whether the proposed power line falls within the jurisdiction of the Zonal Railway. If it does not fall within the Zonal Railways jurisdiction, the proposal shall be returned back to the PTCC without any delay and the Railway to which it should be sent shall also be advised. The Railway concerned on receipt the proposal shall mark their telecom lines on the maps and submit one copy to the PTCC. The details in full of all the circuits working on the telecom alignments giving the discontinuity points and route length should be furnished. 2.6 Induced voltage calculations are calculated by the following: Above 11 KV 33KV Double Proposed and up to Circuit (DC) 11 KV Above 132 KV Power Line 33KV Single and up to 132 Circuit(SC) KV Central Electricity Calculation DET Authority, New of I.V done SLPTCC SEB Concerned Delhi by (CEA, New Delhi) Method to calculate Induced Voltage : The induced voltage on a telecommunication line during an earth fault on the power line is given by the expression: V=MxI Where V is induced voltage in Volts, I is Earth Fault Current in Amps and M is Mutual Coupling in Ohms between Power line and telecom line The value of Mutual Coupling (M) depends upon the distance between the power and telecom lines, the length of parallelism, the fundamental frequency of the power supply and the soil resistivity of that area. Indian Railways Telecom Manual - 2021 Page 10  Flow Flowchart for the processing of PTCC Route approval of Power Lines A. Power Lines above 132KV Begin Proposal for PTCC Route Approval forwarded by Power Utility/SEB to Director (PTCC), GM (S&T) of the Concerned Concerned Divisional CEA concerned DET, PTCC Engineer of Telecom Railways circle, BSNL Marking of Railway Compiling of all Marking of Telecom Telecom Details by BSNL Details Details Railway Authority Calculation of Induced Voltage figures & Forwarding to GM (S&T) of the concerned Concerned DET for issue of Railways for issuing NOC PTCC Route Approval If IV Figures NO NO If IV Figures within safe within safe limits? limits? Re-engineering proposed Yes Yes NOC Issued by PTCC Route Approval issued by concerned Railways DET(PTCC) on behalf of Central PTCC End Indian Railways Telecom Manual - 2021 Page 11  B. Power Lines up to 132 KV Begin Proposal for PTCC Route Approval forwarded by Power Utility/SEB to GM (S&T) of the Concerned DET, PTCC Concerned Divisional concerned Railways Engineer of Telecom circle, BSNL Marking of Railway Compiling of all BSNL Marking of Telecom Telecom Details by details Details Railway Authority Power Utility/State Calculation of Induced Voltage figures Electricity Board & Forwarding to GM (S&T) of the concerned Concerned DET for issue of Railways for issuing NOC PTCC Route Approval If IV Figures NO NO If IV Figures within safe within safe limits? limits? Re-engineering proposed Yes Yes NOC Issued by PTCC Route Approval issued by concerned Railways DET(PTCC) on behalf of Central PTCC End Indian Railways Telecom Manual - 2021 Page 12 2.7 Safe limit for induction due to Low Frequency Induction due to short circuit fault is 430V and is generally the ruling factor. In specific cases, longitudinal induced voltages under normal conditions are to be examined. In case, where the induced voltages due to short circuit fault on the telecom circuits, exceeds prescribed safe limit of 430V, it is necessary to consider various protection measures so that the equipment installed and the personnel working on these circuits are not subjected to the influence of hazardous potentials. One of the measures commonly adopted for protection is the use of three electrode Gas Discharge (GD) tubes. Two electrodes of the tube are connected to the wires of a telephone pair and the third electrode to the earth, through the earth cap. Under normal conditions, the telecom line is kept insulated. The gap breaks-down and the telecom line is virtually earthed, when induced voltage excess the pre-determined value (250V). Through the discharge path, the earth connection to the tube should be of very low resistance so that the voltage across the tube is restricted to safer values. Numbers of GD Tubes are required for protection: Nos of GD tubes = Induced Voltage/Constant, Value of constant is 300. If value comes in fraction then it is rounding off to next integer value. If Nos of GD tubes are 3 then two GD tubes should be installed at the ends of telecom lines in the paralleling section and one in the middle of these two. In case the number of GD tubes worked out are more than three, two of these should be fitted at each end of the paralleling section of the telecom lines and the rest of the GD tubes be fitted in between space at equal intervals. GD tubes worked out by the above method should be fitted on all the telecom wires in the paralleling section. 2.8 Protective measures against induced voltages in excess of the safe limits on different types of block instruments in use in Indian Railways is given in Appendix XVII to Chapter I of PTCC manual – edition 2010. The limits for the block instruments presently in use on IR are given below: (i) SINGLE LINE BALL TOKEN/ TABLET TOKEN BLOCK INSTRUMENT (a) For induced voltage not exceeding 430 V no special precaution is necessary. (b) For induced voltages exceeding 430 V metallic return and appropriate Gas Discharge tubes are to be provided. (ii) Double Line Block Instrument As in Sl. No. (i). (iii) Kyosan Tokenless Push Button 650 V AC with modification similar to Podanur’s Tokenless Single line block instrument as mentioned below in Item no (ix) Indian Railways Telecom Manual - 2021 Page 13 (iv) Diado Single Line Tokenless Block Instruments Without modification this instrument can safely stand induction up to 74V 50 cycles AC induced voltages. For induced voltages up to 650V AC the following modification is to be made: A-3 position polarized relay of the type used in Neale’s token or SGE double line block instrument is to be interposed in the line circuit and the existing line relay (NR Relay) fed from local battery through the contacts of polarized relay. Also the line condensers C1 & C2 each of the microfarad capacity with a voltage rating of 160V are to be replaced by condensers of equal capacitance but with a voltage rating of 1000V Standard gas dischargers will also have to be provided for the lines. (v) Push Button Type Single Line Tokenless Block Instrument This instrument is only suitable for use in non-AC electrified sections. This instrument is safe for use in block circuits subjected to maximum induction 650V r.m.s. 50 cycles AC from neighboring power line provided the existing DC blocking condenser in the telephone circuits is replaced by a one rated for 1000V DC for non AC section only (non AC electrified). (vi) Sectional Axle Counter for BPAC/IBS/ABS Please refer to OEM manual for voltage limit for safe working. (vii) UFSBI Please refer to OEM manual for voltage limit for safe working. (viii) Electronics Interlocking Please refer to OEM manual for voltage limit for safe working. 2.9 Maximum acceptable limit of induced voltage due to power parallelism is up to 2000V on railway block and communication circuits subject to the specific limitations mentioned above. The cases of induced voltages above these limits should be treated as re- engineering cases and each such case should be treated separately in consultation with the Railway Board. 2.10 Railway control/block and all other Circuits are now normally working on OFC/Quad however Railway control and other overhead circuits to be invariably provided with GD tubes on par with the protective arrangements required for protection of block circuits. 2.11 Interference to signaling circuits shall be checked up with reference to the A.C. immunity of the signaling equipment viz., track circuit relays, line relays, Indian Railways Telecom Manual - 2021 Page 14  point machines etc. Interference voltages to signaling circuits are not provided by PTCC and will have to be done by the Railways in specific cases where interference is suspected. 2.12. After calculation of induced voltages, divisions shall be advised of the protective measures to be taken and final clearances for energization of power lines shall be given only after provision of protective measures is completed wherever necessary. 2.13 Divisions shall ensure that protective measures are maintained properly. During inspections, the availability of the protective measures at the stations shall be checked. 2.14. The expenditure for provision of the protective measures shall be deposited by the agency which carries out erection of the new power lines. 2.15. Method for carrying out low frequency induction test if required, and code of practice for protection from earth potential rise (EPR) are described in the PTCC manual. It should be ensured that the EPR at locations of telephone exchanges, cable joints, terminals, pillars, cabinets etc., is within safe limits. The EPR counters which define hazard zone for telephone plants are given below: S.No. Type of Telecom Plant Type of Power System High Reliability Other Lines Lines 1. Terminal, apparatus, joints, cabinets, Pillars, 650 V 430 V Manholes, Pins, Poles. 2. Telephone Exchanges 430 V 430 V 3. Cables: a) Metal Sheathed 650 V 430 V b) Plastic insulated and plastic sheathed. 7 KV 7 KV 2.16. PTCC Monitoring cell headed by CCE/Dy.CSTE(Tele)/any nominated official by PCSTE of the railway shall monitor the timely disposal of pending and new cases. The cell shall maintain the concerned data on PC with the help of nominated official/supervisor and shall share all relevant information, calculation sheets with divisions. Time limits for obtaining PTCC Route Approval: (i) For Approval of 11 KV Lines – Approval by the respective DEs (Telecom) (a) 8 weeks if the power line proposal pertains to single case. (b) 12 weeks if the cases are referred in-group. Indian Railways Telecom Manual - 2021 Page 15 (ii) For 22 KV/33 KV Power Lines – Approval by the State Level (a) Furnishing the telecom details by BSNL/ 10 weeks Railway/Army etc. (b) Examining cases and computing the 3 weeks Induced Voltage (IV) calculations and forwarding the same to Railways, if required. (c) Forwarding recommendations by Railways 4 weeks (d) Final examination and issue of certificate 3 weeks (iii) For 33 KV D/C and above up to 132 KV Power Lines (Central Cases) (a) Furnishing telecom details by BSNL/ 12 weeks Railway/Army (b) Scrutinizing the details, preparing copies 2 weeks & forwarding to concerned Electricity Board by DET PTCC. (c) Furnishing I.V. calculations by Electricity 10 weeks Board and endorsing copies to all concerned (d) Furnishing recommendations by Railway /Army 4 weeks (e) Final examination & Issue of certificate 4 weeks (iv) For Approval of Power Lines above 132 KV (Central Cases) (a) For furnishing telecom details by 12 weeks BSNL/Railway/Army. (b) Scrutinizing the details, preparing 2 weeks additional copies and forwarding to Joint Secretary Power. (c) Furnishing Induced Voltage 10 weeks calculation by Joint Secretary Power & endorsing copies to all concerned. (d) Furnishing recommendations by Railway/ 4 weeks Army. (e) Final examination and issue of certificate 4 weeks For protective works after the PTCC approval (a) For quoting the charges and furnishing Estimate 8 weeks (b) Arrangement for payment 8 weeks (c) Execution of protective works by BSNL 10 weeks (d) Execution of protective works by Railways 10 weeks Notes: 1. In general, the time schedule recommended for the various functions shall not apply to cases where re-engineering is involved. Even for Indian Railways Telecom Manual - 2021 Page 16  such cases the appropriate authorities may quote the reasonable time required for the re-engineering. 2. The period for implementing the protective works has been recommended assuming the essential materials for those works would be available in reasonable time. 3. If the protective works are to be undertaken by the Department or Agencies other than the Unit submitting the proposal, every attempt should be made for speedy completion of the protective works. However, energization shall not take place if the protections are not completed. 4. The time prescribed may be taken as maximum. For watch and monitoring - Cases below 33 KV: - Necessary monitoring and watching would be done by the respective State Level PTCC Committees. - The Standing Sub-committee will examine badly delayed cases of 33 KV D/C and above. - Information pertaining to such cases would be called for in the prescribed form from the various DETs (PTCC) for review by the Sub-committee Indian Railways Telecom Manual - 2021 Page 17  Annexure-‘A’ COMPOSITION OF THE CENTRAL PTCC: Chief Engineer (LD & T), 1. Central Electricity Authority,New Delhi Chairman Chief General Manager, T&D Circle In Alternate 2. Bharat Sanchar Nigam Ltd (BSNL) Years Jabalpur Director (PTCC), 3. Secretary (Power) Central Electricity Authority,New Delhi Deputy General Manger, T&D Circle 4. Secretary (Telecom) BSNL, Jabalpur Director (Telecom), Railway Board 5. Member New Delhi 6. Jt. DDG (ML), Ministry of Communication Member 7. Chairman/ Co-Chairman of SLPTCC Member 8. Director (GP), Ministry of Communication Member 9. Representative of Dept. of Power Member 10. A representative from the Army Headquarters Member 11. DDG(NE), TEC, BSNL, Hyderabad Member 12. DET (PTCC), T&D Circle, BSNL Member Indian Railways Telecom Manual - 2021 Page 18  Annexure-‘B’ COMPOSITION OF THE COMMITTEE AT STATE LEVEL: 1. GM (Telecom) of concerned Telecom Circle, BSNL Chairman In Alternate Chief Engineer (Transmission) of the concerned Years 2. SEBs/ State Power Transmission Corporations DGM (Telecom) who deals with PTCC matters of Secretary (SLPTCC) 3. the Telecom Circle Telecom Sector SE/DGM, who deals with PTCC matters of the Secretary (SLPTCC) 4. State Power Utility. Power Sector EE of Power Utility / SDE (PTCC), T & D Circle 5. Co-ordination Secretary BSNL Other members from Power Sector Zonal SE/ EE in-charge of PTCC Member 6. Representative from any other Central/ State Member Power Trans. Corporation Chief Electrical Inspector or his authorized Member representative from state Other Members from BSNL AGM (Plg) in charge of PTCC, BSNL Member 7. DET (PTCC), BSNL of the concerned region Member Any other representative of BSNL as special Member invitee, as required 8. DSTE of Zonal Railway Member 9. Army representative of the Area Member -x-x-x- Indian Railways Telecom Manual - 2021 Page 19  CHAPTER III ROLE OF WPC AND SACFA CLEARANCES 3.1. INTRODUCTION: 3.1.1 WIRELESS PLANNING & COORDINATION WING. The WIRELESS PLANNING & COORDINATION (WPC) Wing of the Ministry of Communications, created in 1952, is the national radio regulatory authority responsible for frequency spectrum management, including licensing and caters for the needs of all wireless users (government and private) in the country. It exercises the statutory functions of the Central Government and issues licenses to establish, maintain and operate wireless stations. WPC is divided into major sections like Licensing and Receival (LR), New Technology Group (NTG) and Standing Advisory Committee on Radio Frequency Allocation (SACFA). SACFA makes the recommendations on major frequency allocation issues, formulation of the frequency allocation plan, making recommendations on the various issues related to International Telecom Union (ITU), to sort out problems referred to the committee by various wireless users, Siting clearance of all wireless installations in the country etc. 3.1.2 The Standing Advisory Committee on Radio Frequency Allocations (SACFA) is a high level committee chaired by Secretary (DOT)/Chairman, Telecom Commission. Heads of major wireless users/administrative ministries of the Govt. of India, Member (Technology), Telecom Commission, and Wireless Adviser to the Govt. of India, Joint Secretary, DoT are its members. WPC wing of the Ministry of Communications provides secretarial help to the committee. Joint Wireless Adviser, WPC wing is the member-secretary of the Committee. Executive Director-Telecom Development ( ED-TD) Railway Board is member of SACFA representing Ministry of Railways. 3.1.3 The main functions of the committee are to make recommendations on:-  Major frequency allocation issues,  Formulation of National Frequency Allocation Plan,  Making recommendations on various issues related to International Telecommunications Union (ITU),  Asia Pacific Telecommunity (APT),  To sort out the problems referred to the committee by various wireless users, siting clearance of all wireless installations in the country, etc. 3.1.4 SACFA clearances are issued after getting 'no objection' from various SACFA members who have to carry out detailed technical evaluation including field surveys, etc. At times they have to obtain evaluations from their field units. The technical evaluation is done primarily for- a) Aviation hazards. Indian Railways Telecom Manual - 2021 Page 20  b) Obstruction to line of sight of existing/planned networks c) Interference (Electro Magnetic Interference (EMI)/Electro Magnetic Compatibility (EMC)) to existing and proposed networks. 3.1.5. SACFA Monitoring cell headed by CCE of the railway shall monitor the timely disposal of pending and new cases. The cell shall maintain the concern data on PC with the help of nominated official/supervisor. 3.2. CATEGORIES OF SITES FOR WIRELESS STATIONS: 3.2.1 Mast Height Category: 3.2.1.1 Sites for VHF/UHF: Those fixed wireless stations whose mast/tower height do not exceed 30 meters above ground level and are operating in certain frequency bands with limited output power as given below are covered under this category: a) (i) All VHF stations below 174 MHz with power output of 50 watts or less except broadcast stations. (ii) All VHF stations in the frequency range 174-230 MHz with output power up to 25 watts except broadcast stations. b) All VHF/ UHF stations with a power output of 10 watts or less. Siting Applications of the above wireless stations are to be forwarded to the members of SACFA listed in Annexure-I in the application form (WPC S-1). 3.2.1.2 Sites for V-SAT/ Micro-Earth Stations (C-, Extended C and KU bands) with power output up to 5 watts: (A) Antenna size- up to 4.0 Meters: In case the total height of antenna including support structure is 30mteres or less from the ground level, the siting application need to be processed under Mast Height Category and Siting applications need to be circulated to members of SACFA as per Annexure -IV using the proforma (WPC S- 4). (B) Antenna size- More than 4.0 Meters: If the antenna height is more than 4 metres but less than 20 metres AGL and the distance from airport reference point is less than 7 kms, clearance need to be obtained from Army Hqs., Air Hqs., Naval Hqs., JCES and AAI under Mast Height Category. If the distance of the site is more than 7 km from airport reference point and antenna height is less than 20 metres 'no objection' is to be obtained from AAI only. The siting applications of the above stations may be forwarded to SACFA members as per list at Annexure-IV in application form (WPC S-4). Indian Railways Telecom Manual - 2021 Page 21 3.2.2 Exemption from Mast Height Clearance: 3.2.2.1 Sites for VHF/UHF: Those mast height cases which satisfy the following conditions are exempted from mast height clearance:- (i) Antenna mast should be installed on the rooftop of the building. (ii) The height of mast including antenna to be installed on the rooftop should not be more than 3 meters. (iii) The site should be at least 3 KM away from the nearest airport. 3.2.2.2 Sites for V-SAT, Micro-Earth Stations ( C, EXTENDED C & KU bands with power output upto 5 watts: (A) Antenna size- 1.8/ 2.4 Meters: If the antenna is to be installed on the rooftop of an existing building with mast height not exceeding 3 metres from rooftop and which is at least 3 kms away from the nearest airport 'no objection' from Department / Organization may not be necessary. These cases will be processed under Mast Height Exemption Category. The site details are to be furnished to Secretary SACFA in the Mast Height (VSAT) application proforma (WPC S-4). (B) Antenna size- More than 2.4 Meters and up to 3.8 meters: If the antenna diameter of VSAT is more than 2.4metres and upto 3.8 metres and antenna height up to 4 metres above ground level beyond the distance of 7 km from airport reference point (ARP) 'no objection' from any of the Departments may not be necessary. These cases will be processed under Mast Height Exemption (VSAT). 3.2.2.3 The procedure for fast-track clearances of applications for mast height exemption is given in Annexure IX 3.3 Full Siting Category: The following fixed stations are covered under the full siting category: 3.3.1 (i) All VHF stations below 174 MHz with power output more than 50 watts. (ii) All VHF stations in the frequency range 174-230 MHz with power output more than 25 watts. All UHF stations with power output more than 10 watts 3.3.2 Station in microwave, line of sight, radio-relay systems. Indian Railways Telecom Manual - 2021 Page 22 3.3.3 All radar stations, Satellite Communication System (including Earth stations), radio navigation and radio location system. 3.3.4 All VSATs / micro-earth stations with transmitter power more than 5 watts 3.3.5 Receiving stations in services like Space Research, Radio astronomy and other sensitive receiving systems operating above 1 Ghz. 3.3.6 Any other change in existing parameters other than reduction in power and mast height of the approved parameters. The siting applications for the above stations are to apply to members as per list at Annexure-II in application form (WPC S-2). 3.4 Additional Antenna Category: 3.4.1 Sites for VHF, UHF and Microwave: All those antennas which are to be installed on the existing mast, already cleared under full siting category, fall under this category. The application is to be circulated to all SACFA members as per Annexure -III in the application form (WPC S-3) but the site is cleared by SACFA Sectt after ensuring receipt of applications by all members of SACFA except cases falling under DIZ area for which clearance from JCES is necessary. Wherever tower space is being leased to private operators, it has to be through RCIL, the application shall be processed by the private operator quoting the full siting clearance approval that was obtained by railways. 3.4.2 Sites for Earth Station: The Earth Station dishes within 50 mts. from an already cleared site may be treated under this category provided the height of proposed installation, including, building height does not exceed the height of already cleared site/mast. 3.5 The procedure for fast-track clearances of applications under additional antenna category is given in Annexure-X. 3.6 GUIDELINES FOR FILLING UP SITING APPLICATIONS: 3.6.1. Application forms for all categories of siting may be obtained from SACFA secretariat and necessary information may be furnished keeping in view the following:- (i) Six digit coordinates of the site are necessary. These six figure coordinates may be taken with the help of GPS system or any other method for accuracy. (ii) The height of the site above mean sea level (AMSL) should be obtained from Survey of India or any other agency except in the case of additional antenna Indian Railways Telecom Manual - 2021 Page 23  category for which a copy of the earlier SACFA clearance and AAIs clearance for that site is mandatory. (iii) Name of the nearest airport and its distance from the site should be mentioned in the application for categories of siting. This information is also supplied by survey of India on demand. (iv) If the site is within 5 kms from the airport then the site map should be authenticated by either the nearest airport authority or any other government organization such as municipal corporation/local town planning committee, etc distance of the site from airport may also be authenticated. (v) (a) The map should be of scale of 1 cm = 1 km or nearest and should cover an area of 12 kms radius around the site. (b) The following should be marked clearly on the map: (i) scale of the map (ii) location of the site (iii) name and geo-coordinates of the site (c) Map should contain at least two parallel lines of latitude and longitude. (vi) Geo-coordinates of the site on the map should be authenticated by the applicant himself. 3.6.2 Applications hard copy along with soft copy be submitted for examination, verification and issue of ID Nos. to SACFA secretariat. Software is available from SACFA Secretariate. 3.6.3 Not more than 5 applications should be submitted in one bunch. 3.6.4 Separate application forms are to be filled for different frequency band and different site. 3.6.5 After issue of ID Nos., siting application is to be circulated as per list applicable to each category of siting clearance. A forwarding letter issued by SACFA is also to be attached with the siting application. 3.6.6 The applications for additional antenna category need to be circulated to all members of SACFA but no NOC from any member is necessary for approval of site except sites which fall in DIZ area for which NOC from JCES is necessary. 3.6.7 A copy of the agreement letter assigning the frequencies from WPC should be attached with application. 3.6.8 A copy of DOT’s license agreement may also be endorsed in case of value added service. Indian Railways Telecom Manual - 2021 Page 24 3.7 CLEARANCE OF SACFA CASES FROM RAILWAYS On receipt of the proposal for site clearance the following aspects have to be checked from railways activity point of view: 3.7.1 FREQUENCY: The frequency of the proposal and the band at which it is proposed is to be cross checked with the allotted frequencies and frequency bands of Railways and clearance can be given if it is not interfering with Railway frequency. In case if the proposal frequency and band are adjacent to the railway working frequency a condition has to be imposed in the no objection certification that permission is given provided the transmission won’t interfere with the railway frequency. 3.7.2 SITE: The Longitude and Latitude of the proposed site has to be cross checked with the existing Longitude and Latitude of the railway communication site. If the Longitude and Latitude are very near to the railway site, the locations have to be physically checked on the topography map for clearance of signal. 3.7.3 TOWER HEIGHT: When the proposal is near to Longitude and Latitude for the railway site then the tower height proposed has to be cross checked for any interference in the path of the railway communication. 3.7.4. TRANSMITTER POWER: The transmitter power of the proposal has to be cross checked whenever the proposal is nearer to the railway site and a conditional certificate should be given for avoiding spurious signal from the transmitter. 3.8 Further information on the role of WPC and SACFA and the procedures to be followed can be obtained from https://dot.gov.in/spectrum-management/2457. Indian Railways Telecom Manual - 2021 Page 25  ANNEXURE-I List of SACFA members to whom the application for Mast Height (general) Category needs to be circulated No. of copies Name & Designation Deptt. Address for communications to be sent Addl. Director General Army Room No. 634, A-Wing, Sena 2 (TT) Hqrs. Bhavan, New Delhi – 110011. Director (Signals) Naval Room No.33, Sena Bhavan, C- 2 Hqrs. Wing, New Delhi 110011. Principal Director Air Room No. 514, Vayu Bhavan, 2 (Sigs) Hqrs. New Delhi – 110011. General Manager AAI Room No. 128, Rajiv Gandhi 2 (ATM) Bhavan, Safdarjung Airport,New Delhi – 110003 Joint Wireless WPC Room No 607, Sanchar 2 Adviser, Secretary, Wing Bhavan,New Delhi - 110 001 SACFA Director JCES Cabinet Secretariat, Military 1 Wing,Room No. 5, Plot No.108, Church Road, New Delhi. Director General IMD Room No. 606, Mausam 1 Bhavan, Lodhi Road, New Delhi- 110003 Indian Railways Telecom Manual - 2021 Page 26  ANNEXURE –II List of SACFA members to whom the siting application under full siting category need to be circulated No. of Name & Deptt. Address for communications copies to Designation be sent Engineer in All India Room No.141 Akashvani Bhavan, 1 Chief Radio Parliament Street, New Delhi -110001. Engineer in Doordarshan Room No.502 Mandi House, 1 Chief Copernics Marg, New Delhi-110001 Director JCES Cabinet Secretariat, Military Wing, 1 Room No. 34, Plot No.108, Church road, New Delhi. VSM, Addl. Army Hqrs. Room No.634, A-Wing ,Sena Bhavan, 4 Director New Delhi – 110011. General (TT) Director Naval Hqrs. Room No. 33, Sena Bhavan, C-Wing, 1 (Signals) New Delhi-110011 Principal Air Hqrs. Room No.514, Vayu Bhavan, New 1 Director(Sigs) Delhi-110011. Sr. DDG (TX) BSNL Room No.601, Statesman House, 2 Barakhamba Road, New Delhi - 110001. Director DCPW Room No.300, Block No. 09, CGO 4 Complex, Lodhi Road, New Delhi- 110003. Executive Ministry of Room No. 152, Railway Board, Rail A list of Director Railways Bhavan, New Delhi- 110 001. sites (Telecom) circulated to the concerned Rly. Zones General AAI No.128, Rajiv Gandhi Bhavan, 1 Manager Safdarjung Airport, New Delhi- (ATM) 110003. Director Light house A-13, Sector 24, NOIDA, Gautam 1 (Electronic) and light Buddha Nagar. UP- 201301. ships, Ministry of Transport Dy. General VSNL Room No.400, 4th Floor, Videsh 1 Manager (TP) Sanchar Bhavan, M.G. Road, Fort, Bombay-400001. Director IMD Room No.606, Mausam Bhavan, Lodhi 1 General Road, New Delhi 110003 Indian Railways Telecom Manual - 2021 Page 27 Director DOS Room No.304, Antariksh Bhavan, 1 ISRO Hqrs., Frequency Management, New Bel Road, Bangalore – 560094. Chief Engineer ONGC 12th Floor, Scope Minar, Laxmi Nagar, 3 (E&T) Vikas Marg, New Delhi 110092. Sr. Director Deptt. Of Room No.4003, Electronics Niketan, 6, 1 Information CGO Complex, Lodhi Road, New Delhi Technology – 110003. DDG NIC Room No.227, NIC Building, CGO 1 Complex, Block-A, Lodhi Road, New Delhi – 110003. Director (WM) Wireless Room No 321, Wireless Monitoring 1 Monitoring organization, E-Wing, Pushpa Bhavan, Organisation New Delhi – 110062. (DOT) Joint Wireless WPC WING Room No 607, Sanchar Bhavan, New 2 Adviser Delhi - 110 001. Secretary, SACFA Indian Railways Telecom Manual - 2021 Page 28  ANNEXURE -III List of SACFA members to whom the siting application for additional antenna category needs to be circulated Name & No. of copies Deptt. Address for communications Designation to be sent Engineer-in- All India Room No.141, Akashvani, Bhavan 1 Chief Radio Parliament Street, New Delhi - 110001. Engineer-in- Doordarshan Room No. 502, Mandi House, 1 Chief Copernics Marg, New Delhi –11. Director JCES Cabinet Secretariat, Military Wing, 1 Room No. 5, Plot No.108, Church Road, New Delhi. Addl. Director Army Hqrs. Room No. 634, A-Wing ,Sena 1 General (TT) Bhavan, New Delhi – 110011. Director Naval Hqrs. Room No.33, Sena Bhavan, C- Wing, 1 (Signals) New Delhi 110011. Principal Air Hqrs. Room No. 514, Vayu Bhavan, New 1 Director(Sigs) Delhi – 110011. DDG(TX) BSNL Room No. 601, Sanchar Bhavan, 20, 2 Ashoka Road, New Delhi - 110 001. Director DCPW Room No.300, Block No. 09, CGO 1 Complex, Lodhi Road, New Delhi – 110003. Executive Ministry of Room No.152, Railway Board, Rail 1 Director Railways Bhavan, New Delhi - 110 001. (Telecom) General AAI Room No. 128, Rajiv Gandhi 1 Manager Bhavan, Safdarjung Airport, New (ATM) Delhi – 110003. Director Light house A-13, Sector 24, NOIDA, Gautam 1 (Electronics) and light Buddha Nagar, UP – 201301 ships, Ministry of Transport Director IMD Room No. 606, Mausam Bhavan, 1 General Lodhi Road, New Delhi-110003 Director DOS Room No. 304 , Antariksh Bhavan, 1 ISRO Hqrs., Frequency Management, New Bel Road, Bangalore - 560094 Chief ONGC 12th Floor, Scope Minar, Vikas Marg, 1 Engineer Laxmi Nagar, New Delhi-110092. (E&T) Indian Railways Telecom Manual - 2021 Page 29 Sr. Director Ministry of Room No4003, Electronics Niketan, 1 Information 6, CGO Complex, Lodhi Road, New Technology Delhi – 110003. DDG NIC Room No.227, NIC Building, CGO 1 Complex, Block-A, Lodhi Road, New Delhi –110003. Director Wireless Room No 321, Wireless Monitoring 1 (WM) Monitoring organization, E-Wing, Pushpa Organisation Bhavan, New Delhi-110062 (DOT) Joint WPC WING Room No 607, Sanchar Bhavan, 2 Wireless New Delhi - 110 001. Adviser Secretary, SACFA Indian Railways Telecom Manual - 2021 Page 30  Annexure-IV List of SACFA members to whom the application for mast height clearance (V-Sat) needs to be circulated No. of Name & Deptt. Address for communications copies to Designation be sent Addl. Director Army Room No. 634, A-Wing, Sena Bhavan, New 2 General (TT) Hqrs. Delhi – 110011. Director Naval Room No.33, Sena Bhavan, C- Wing, New 2 (Signals) Hqrs. Delhi 110011. Principal Air Room No. 514, Vayu Bhavan, New Delhi – 2 Director(Sigs) Hqrs. 110011. General AAI Room No. 128, Rajiv Gandhi Bhavan, 2 Manager Safdarjung Airport, New Delhi – 110003. (ATM) Joint WPC Room No 607, Sanchar Bhavan, New 2 Wireless WING Delhi - 110 001. Adviser Secretary, SACFA Director JCES Cabinet Secretariat, Military Wing,Room 1 No. 5, Plot No.108, Church Road, New Delhi. Director IMD Room No. 606, Mausam Bhavan, Lodhi 1 General Road, New Delhi-110003 Indian Railways Telecom Manual - 2021 Page 31  ANNEXURE-V WPC S-1 Application form for Mast Height (General) 1 ID Number & Date 2 Name of Applicant 3 Address of applicant 4 Transmitter power (in watts) 5 Frequency/Frequency band of operation 6 Antenna location 7 Lattitude/longitude (six digit) 8 Height of site above mean sea level 9 Height of antenna mast above ground (building height to be included if it is to be installed on the roof top) 10 Height of building 11 Name of the nearest Airport 12 Distance of the site from the nearest airport 13 Location map with boundary reference 14 Ministry’s reference with date vide which frequencies earmarked (A copy of agreement to be attached) 15 Remarks Signature of Applicant Indian Railways Telecom Manual - 2021 Page 32  ANNEXURE-VI WPC S2 Application form for Full Siting Category 1 Service 2 ID number and date 3 Name of Applicant 4 Address of Applicant 5 Transmitter power (in watt) 6 Frequency/Freq. band of operation 7 Antenna location 8 Latitude and longitude (six digit) 9 Height of site above mean sea level 10 Height of antenna mast above ground level 11 Height of building if antenna is to be installed on the roof top 12 Type of antenna and its size 13 Azimuth of maximum radiation 14 Gain of Tx. Antenna (db) 15 Gain of Rx antenna (db) 16 Beam width (in degree) 17 Name of the nearest airport 18 Distance of the site from the nearest airport 19 Receiver location 20 Nature of service 21 Circuit/hop length Indian Railways Telecom Manual - 2021 Page 33  22 Approx. area covered by antenna location 23 Service area 24 Location map 25 Ministry's reference and date 26 DOT agreement number and date, if required 27 Remarks ( Signature of Applicant ) Indian Railways Telecom Manual - 2021 Page 34  ANNEXURE-VII WPC S-3 Application form for Additional Antenna Category 1 Service 2 ID number and date 3 Name of Applicant 4 Address of Applicant 5 Transmitter power (in watt) 6 Frequency/Freq.band of operation 7 Antenna location 8 latitude and longitude(six digit) 9 Height of site above mean sea level 10 Height of antenna mast above ground level 11 Height of building if antenna is to be installed on the roof top 12 Type of antenna and its size 13 Azimuth of maximum radiation 14 Gain of Tx. Antenna (db) 15 Gain of Rx antenna (db) 16 Beam width (in degree) 17 Name of the nearest airport 18 Distance from the site 19 Receiver location 20 Nature of service 21 Circuit/hop length Indian Railways Telecom Manual - 2021 Page 35  22 Approx.area covered by antenna location 23 Service area 24 Ministry's reference and date 25 DOT agreement number and date 26 Earlier SACFAreference vide which site cleared 27 Remarks ( Signature of Applicant ) Indian Railways Telecom Manual - 2021 Page 36  ANNEXURE-VIII WPC S-4 Application form for Mast Height (VSAT) 1 ID number and date 2 Name of Applicant 3 Address of applicant 4 Transmitter power (in watts) 5 Frequency/Frequency band of operation 6 Antenna location 7 Latitude/longitude (six digit) 8 Height of site above mean sea level 9 Height of antenna mast above ground (building height to be included if it is to be installed on the roof top) 10 Height of building 11 Type of antenna and its size 12 Azimuth of maximum radiation 13 Gain of Tx antenna (db) 14 Gain of Rx antenna (db) 15 Name of the nearest Airport 16 Distance of the site from the nearest airport 17 Location map with boundary reference 18 Ministry’s reference with date vide which frequencies earmarked (A copy of agreement to be attached) Indian Railways Telecom Manual - 2021 Page 37  19 D o T agreement number and date 20 Remarks Signature of Applicant Indian Railways Telecom Manual - 2021 Page 38  ANNEXURE-IX F.No. K-19012/Misc./2005-CFA Government of India Ministry of Communications & IT Department of Telecommunication WPC Wing Sanchar Bhavan New Delhi-110001 Dated: 27th July, 2005. OFFICE MEMORANDUM Sub: Simplified procedure for sites falling under “Mast Height Exemption Category”. In case of sites for VSATs and other masts/antennae for various applications falling under “Mast Height Exemption Category”, the following procedure comes into force with immediate effect. 2. For the sites falling under “Exemption from Mast Height Clearance”, the applications are to be filed online like other SACFA siting applications. Signed hard copies along with the details of ID numbers and the required amount of Bank Draft be submitted to SACFA Secretariat. 3. In addition, a consolidated list of such sites along with the details as per the prescribed format (Annex-1) are to be submitted in duplicate. 4. An earnest money of Rs. 1000/- (Rupees One thousand only) per site in the form of State Bank of India Demand Draft, drawn in favour of The Pay & Accounts Officer ( HQrs), Department of Telecommunications, payable at New Delhi, is required to be submitted. 5. An undertaking as per Annex-2 shall also be submitted by the applicant. This procedure supersedes all earlier OMs in this regard. ---s/d--- (D.SINGARAVELU) Deputy Wireless Adviser to the Government of India Indian Railways Telecom Manual - 2021 Page 39  Annex-1 Details of VSATs and other masts/antennae sites under ‘SACFA Mast Height Exemption Category” 1. Name, address of the Organisation /VSAT Service Provider : Tele & Fax No. : E-mail address : 2. Name of the Hub Station for the network: Reference of WPC Licence No./ : Decision letter for the network : (for masts/antennae of other applications this is not applicable) SA Location Locat Locat Freque Size of AMSL Height of Name Distanc CF /addres ion ion ncy Antenna (meters) Building of the e of the A s of Longi Latitu band / above neares airport VSAT/ tude de of VSAT ground t from ID mast operati (meters) airport the site on (KMs) Indian Railways Telecom Manual - 2021 Page 40  Annex-2 UNDERTAKING Whereas M/s.__________________________________, a company incorporated under the Companies Act, 1956, having its registered office situated at ______________________ is a provider of VSAT Service. AND for the purpose of VSAT Service, M/s. ______________________________ as aforesaid applied for Licence / permission from Government of India on its own volition and has agreed to abide by terms and conditions relating to the VSAT licence etc. AND the M/s.________________________________ has installed VSAT stations some of which fall under “ SACFA Exemption Category”, full details and Particulars of which are given above (in Annex-I appended hereto). I, ________________________, Son/Daughter of Shri_________________, resident of _________________________________ and Owner/Managing Director/Director/Partner/Authorised Signatory; for and on behalf of the above said company do hereby undertake that all the VSATs as detailed above (in Annex-I) have antenna size up to 2.4 meter diameter and use RF Power up to 5 watts. I further undertake that all the terms and conditions framed regarding VSATs will be fully observed, and in the event of any violation of such terms and conditions or furnishing of wrong information above (in Annexure I) or otherwise, I and M/s. _____________________________________shall indemnify jointly and severally the WPC Wing, Department of Telecommunications (DOT) against all third party claims and shall accept full responsibility and liability for the same, including any penalty or, dismantling of the VSAT (at our cost) and / or cancellation of the wireless licence, as decided by the WPC Wing, Department of Telecommunications. Signed on _________day of __________________Two thousand Five by Shri ______________________ holder of General Power of Attorney executed pursuant to the Board resolution dated _____________________. Date: (Signature) Place: (Name & Designation of the Authorised Signatory) (Name & Address of the Service Provider Company) In the present of Witnesses: 1. 2. (Note: For masts/antennae for other applications, the Undertaking may be modified accordingly) Indian Railways Telecom Manual - 2021 Page 41  ANNEXURE-X Fast track site clearances for additional antennae K-16011/05/2002-CFA Government of India Ministry of Communications & Information Technology Department of Telecommunications Wireless Planning and Coordination Wing 223-B, Sardar Patel Bhavan, Parliament Street, New Delhi 110001 Date: 03.07.2002 OFFICE-MEMORANDUM Subject:Fast track site clearances for additional antennae Kindly refer to agenda item no. 5 of Summary Record of 137th meeting of SACFA held on 28.05.2002 where BSNL representative informed pendency of their cases for additional antennae despite involvement of less number of SACFA members. After detailed discussion, it was decided that no NOC (s) from SACFA members will be required for siting cases falling under additional antenna category. However, siting applications are to be circulated to all members of SACFA and their receipt is to be ensured. After ensuring receipt of such cases, SACFA Sectt. will issue necessary clearances for sites falling under additional antenna category. The following modified procedure for additional antennae cases will be followed in future- Applicant will apply to SACFA Sectt in a prescribed proforma available with SACFA Sectt for which softcopy may be obtained from SACFA Sectt for obtaining ID numbers. Applicant will enclose a copy of earlier SACFA clearance, NOC received from AAI with regard to site under consideration if site was cleared after 1995 and appropriate map indicating the site. Applicant will be issued ID numbers after scrutinizing applications for correctness. When applicant informs SACFA about likely date of circulation of siting applications, he will be issued circulation letter meant for all members of SACFA, which he will attach with applications and circulate within a week’s time. Applicant will obtain acknowledgement slip in token of receipt of his applications by SACFA members. Applicant has to submit a copy of frequency agreement letter issued by WPC at the time of obtaining SACFA clearance. Applicant will be issued SACFA clearance within a short time after confirming receipt of applications through receipts ---s/d--- ( Deepa Aggarwal ), Assistant Wireless Adviser For, Secretary, SACFA -x-x-x- Indian Railways Telecom Manual - 2021 Page 42  CHAPTER IV COMMUNICATION REQUIREMENTS FOR NEW STATIONS/SECTIONS 4.1 Opening of new stations whether in an already existing line or as part of a new section shall be governed by “Rules for opening of a Railway”. 4.2 Communication systems for new sections shall be planned on underground OFC & Quad cable and/or on modern cellular communication duly suited for Train Traffic Control such as GSM-R/LTE. Suitable system to meet the future communication requirement of the section shall be planned. Adequate capacity shall be built in to meet the safety requirements of block working, TAWD, BPAC, TCAS, emergency requirements for accident communication etc. and Data communication requirements of UTS,PRS,FOIS,COIS, Datalogger, SCADA, Control, VSS, WiFi etc. 4.3 Communication arrangements at a new station shall be governed by: a) Controlled / Uncontrolled section. b) Electrified/Non-electrified section. c) Importance in terms of the various departmental staff to be posted at the station. d) classification of station on commercial ground as per latest guidelines 4.4 The following communication arrangements shall be provided at new stations: a) Control telephone (2-wire/4-wire/VoIP based) in controlled sections. b) Phone communication to all manned level crossing gates controlled from the station preferably with voice logging facility. c) 25W VHF sets with proper standby power supply. d) Communication arrangements with sidings. Mode of communication shall be decided by the Railway administration, depending on the importance of the siding. e) BSNL phone wherever feasible with Caller ID. In the absence of feasibility for land line BSNL phone, FCT of CUG or any other service provider shall be provided. f) At new stations, if feasibility exists, Railway auto phone facility may be provided with the help of IP exchanges installed at another location. At important stations, telephone exchanges shall be provided where there is a sizable establishment for railway working. Wherever feasible, such exchanges shall be connected by suitable means to the divisional exchange with path redundancy as in ring/mesh/star network. g) At all new stations, communication arrangements may be provided to Officer/SSE/JE/Technician and ASM office through CUG/Railway auto phone/control phone if required. h) In a new section, communication arrangements for block working to suit the system of working to be followed shall be provided. i) In electrified territory, TPC phones shall be provided. Indian Railways Telecom Manual - 2021 Page 43  j) Provision for telecom circuits/network for Railnet with IP DSLAM & LAN extender/FOIS/UTS & PRS and other important telecom facilities. k) OFC and QUAD cable to be laid for SSP/SP/TSS for SCADA working. l) Gate phone for communication Gateman and Station Master to be provided as per requirement. 4.5 Additional communication facilities to be provided in new electrified sections, shall be governed by the provisions in Chapter - IV of the 25KV AC traction manual. 4.6 All the communication equipment shall be provided with suitable power supply, power backup and proper protective arrangements. 4.7 All the communication equipment and power supply units shall be properly earthed and suitable lightning and surge protection arrangements shall be provided. 4.8 Besides telecommunication facilities, one or more of the following facilities are to be provided depending on the requirement of the station as per the latest Railway Board’s guidelines. a) GPS /Precision Platform clocks. b) PA systems for announcements on the platforms. c) IPIS/Train/Coach Indication Boards d) VSS/CCTV and WiFi e) Other facilities such as Fare display board, face to face counter communication etc. required by division 4.9 Telecom power supply should be monitored through data-logger/NMS (Network Monitoring System). It is desirable to get it monitored by generating SMS alerts from suitable gateway to the concerned section in-charges. 4.10 S&T DG supply should be extended to OFC/Telecom Room. In electrified sections, in addition to normal supply, AT supply, both UP and DOWN, to be extended to telecom equipment also, through separate fuse/MCB of suitable capacity (minimum 10 Amp). 4.11 All telecom equipment should preferably work on -48 V DC supply to avoid multiplicity of power supplies. Otherwise, wherever feasible, separate IPS type of power supply arrangement to be provided for all the telecom equipment together. 4.12 Cables used for Telecom Equipment should be properly dressed up and covered in station areas and buildings to maintain the reliability and aesthetic. Separate duct arrangement for all Telecom cables should be provided on all platforms of stations. -x-x-x- Indian Railways Telecom Manual - 2021 Page 44  CHAPTER V TRAIN TRAFFIC CONTROL 5.1 GENERAL 5.1.1 RAILWAY CONTROL CIRCUITS: Railway Control Circuits are omnibus telephone circuits which provide communication with each train working point, thus facilitating efficient train operation. They should provide satisfactory and reliable communication between the controller and the various way-side stations, important signal cabins, loco sheds, yard offices etc. There should be provision of Voice Data Logger/ Monitor for Control Circuits 5.1.2. TYPE OF CONTROL SYSTEM: According to traffic requirements and to cater to the needs of Electric Traction area, a section may be provided with one or more Railway Control Circuits as detailed below: a) SECTION CONTROL / TRAIN CONTROL: This is provided for communication between the Section/Train Controller in the control office and way-side stations, junction station, block cabins, loco sheds and yards in a division for the control of train movements and effective utilization of section capacity. b) DEPUTY CONTROL: If required by division, this is provided for communication between the Deputy Controller in the control office and important stations, junctions & terminal stations, yard master's offices, loco sheds and important signal cabins in a division for supervisory control of traffic operation in general. c) TRACTION POWER CONTROL: Provided between traction power controller and SM's Office, FPs/SPs/SSPs for maintenance of OHE system. d) Remote Control for Supervisory Control and Data Acquisition System: SCADA is provided between traction power controller and FPs/SPs/SSPs for various data acquisition and remote control of OHE energisation/de-energisation etc. purpose. e) EMERGENCY CONTROL: Provided from selected points along the track route for establishing communication between train crew (in case of emergency), traction and permanent way staff with traction power controller and with section controller in non-RE area if control office does not have traction power controller. The emergency sockets are provided at an interval of 1 Km (Max.) along the route. They are also provided at FP/SP/SSPs, isolators in yards, LC gates and both sides of major bridges. Emergency control can be dispensed with specific approval of the Railway Board wherever any other form of emergency communication (MTRC etc.) is commissioned and put into use. Indian Railways Telecom Manual - 2021 Page 45  f) EMERGENCY WIRELESS CONTROL COMMUNICATION: The following equipments can also be utilized for emergency wireless communication where such system exists:- a. Handsets for Mobile Train Radio Communication (MTRC) in sections. b. Handsets (Official or Private) for Cellular Mobile Communication in sections. c. Walkie-Talkie sets in sections where VHF communication from train to control office has been provided in lieu of any physical medium or MTRC. Any other form of emergency wireless communication shall have the specific approval of the Railway Board. 5.1.3 REQUIREMENTS FOR TRAIN TRAFFIC CONTROL SYSTEM : Train Control systems shall fulfill the following requirements :- a) Facilities should be provided to section controllers for selectively calling one or a group of stations or all stations. b) Push buttons of non-locking type or soft keys/tabs/buttons in case of touch screen based dialing equipment shall be provided for selective calling of any station by the controller. c) The station masters shall lift their control phone and it should be possible to directly talk to the section controller with no dialing or minimum dialing. The control phone shall have a non-lockable type press-to-talk switch for enabling the speech transmission of the station master so as to minimize background noise while in listening-only mode. However in CCEO/VOIP control communication system, PTT switch is not mandatory. d) Means shall be provided to automatically inform the section controller whenever the bell/buzzer at the station rings in response to the call initiated by him. e) The signalling used for selective calling shall not hamper normal telephone conversation on the line. f) Feature of prolonged ringing of any way-station shall be provided. g) The equipment should be rugged and capable of intensive use. h) The equipment should work satisfactorily within allowable margins of line characteristics without frequent critical adjustments. i) The system should be capable of progressive expansion without any replacement. Indian Railways Telecom Manual - 2021 Page 46  j) Earth return circuits shall not be retained on AC traction and all Telecom circuits shall work on metallic return or OFC. k) Facility shall be provided in the control office for transferring/conferencing Emergency Control (wherever exists) to the Section Control circuit. l) No overhead Railway telecom alignment is permitted over Indian Railway. However in unavoidable cases local Railway administration can give permission for temporary overhead telecom alignment for a temporary period not exceeding 3 months which may be extendable by further 3 months period. m) Provisions must be made to record the control communication with time stamps. n) Multiple protection paths with route & service provider diversities shall be provided to ensure high reliability of control communication circuits, 5.1.4 INTERCOMMUNICATION BETWEEN LOCAL TELEPHONE AND CONTROL CIRCUIT a) It is also desirable to make provision of an approved type to interconnect the local telephone exchange with important control circuits to enable important officials served by the local telephone exchange to gain access to such control circuits with or without the assistance of an operator. b) Such a provision shall not affect the performance of the control circuits from the point of view of signalling or speech. c) Whenever interconnection is made through an operator, the manual board shall be provided with necessary supervisory facilities so that the telephone connected to the exchange is disconnected from the control circuit as soon as the conversation is over. d) It should be ensured that only important officials have access to control circuits in this manner. 5.1.5 TYPES: In one control section, only one type of equipment should be provided to ensure ease of maintenance and inventory management. Traffic Control Equipment shall be of the following or any other approved type. a) DUAL TONE MULTIFREQUENCY SYSTEM: In this system two frequencies are being transmitted simultaneously as per the standard DTMF Frequencies plan given in Annexure-I with 2 digit code to call either one station at a time or a nominated group at a time or all at the same time. b) CCEO: Control Communication Equipment for OFC System (CCEO) is being used for Control Communication between Control office and way stations. This system permits working of voice communication and Indian Railways Telecom Manual - 2021 Page 47  signaling through an Optical Fibre Communication System and also works through quad cable with some changes of input and output impedances. c) VoIP Based Train Control Communication System: Voice over internet protocol based train control communication is to make use of the standard, modern and widely proven Internet Protocol technology as a platform. This enables use of common infrastructure for voice and data services. This system provides many additional features such as caller ID, call logs, different ringtones etc. 5.1.6 INTERCOMMUNICATION EQUIPMENT: All controllers in a control office shall be provided with an intercommunication system covering local requirements with facilities for each controller to call any other controller, including Deputy Controller, Chief Controller and the Technician/JE/SSE(Tele) on duty. 5.2 DUAL TONE MULTI FREQUENCY CALLING SYSTEM. 5.2.1 (a) This system for train traffic control equipment with voice frequency signaling using Dual Tone Multi Frequency(DTMF) signals for 4 Wire and 2 Wire operation is known as DTMF Calling System. (b) The control office equipment is normally designed for 4 Wire operation which can be converted into 2 Wire operation by provision of hybrid attachment. The way station equipment shall be different for 4 Wire and 2 Wire working. 5.2.2 CONTROLLERS EQUIPMENT: The control office equipment consists of an operating console with DTMF code generator and voice communication equipment. (i) The operating console with code generator has following facilities : a. Standard 16 key DTMF Key Pad for calling 99 stations with two push button operation. b. Station group code buttons A, B, C, D. and some additional buttons (4). Some buttons are used for Special Functions such as – c. Push button (marked ‘G’) for general call for calling stations simultaneously. d. Push button LR for extending long ring at way stations. e. Special push button 'RT' - for repeating last transmitted station code. 'RS' - to reset the system 'RC' - for row/column frequency check. 'DL' - for cancellation of code. f. Visual indications for “System O.K”., “Display of station code” and “power ON” indication. Indian Railways Telecom Manual - 2021 Page 48  (ii) The communication equipment consists of loudspeaker/microphone with amplifiers and hand micro telephone and controllers headset. 5.2.3 WAY STATION EQUIPMENT: The way station equipment shall consist of DTMF decoder which can be assigned any DTMF station code/group code selectable with DIP switches, voice communication equipment and 2-Wire/4- Wire desk type control telephone. 5.3 CCEO System: 5.3.1 The CCEO (Control Communication Equipment for OFC) is an advanced equipment connected to traditional control communication system on OFC as per RDSO Specification No. RDSO/SPN/TC/66/2007 or latest. The main equipment is kept in OFC hut itself and it works only on standard telecom supply (-48 V DC). No other DC power supply is required for normal PSTN analog handset. 5.3.2 Components of the CCEO system S.No. Name of the Segment or Unit Part of 1. Control Room Equipment (CRE) Headquarters Equipment 2. Test Room Equipment (TRE) 3. Local Telephone Equipment (LTE) 4. Multi Telephone Way station Equipment (MTWE) Way station Equipment at 5. Three Way Amplifier (TWA) OFC hut. 6. Remote Patching Equipment (RPE) 7. Two-Wire Dialing Control Telephone (TDCT) Way station equipment with the ASM. 5.3.3 Control Room Equipment (CRE): This equipment is provided on the controller’s desk. Using this equipment the controller can selectively call any way station or any local telephone, TDCT (Two wire Dialing Control Telephone), of any way station and can speak to it. 5.3.4 Test Room Equipment (TRE): This unit is provided in the test room for carrying out maintenance and testing functions on way station equipment. 5.3.5 Local Telephone Equipment (LTE): The LTE is used to provide 20 local telephones at Head Quarter. 5.3.6 Multi Telephone Way station Equipment (MTWE): This unit is provided at every way station and it is connected to the VF channel from the PD Mux on Indian Railways Telecom Manual - 2021 Page 49  OFC system by a 4-wire cable. It gives a facility to connect maximum 4 control telephones at a way station. 5.3.7 Three Way Amplifier (TWA): The TWA unit is used when the number of telephones required at a way station is more than four which is the maximum capacity of a MTWE unit. By using TWA one more MTWE can be provided at a way station. 5.3.8 Two-Wire Dialing Control Telephone (TDCT): The Two-wire Dialing Control Telephone (TDCT) is the standard telephone instrument with a handset and a numeric dial. Each TDCT is connected to MTWE with a twisted pair having a loop resistance of less than 1200 Ohm. 5.3.9 Remote Patching Equipment (RPE): The function of RPE is to provide patching between the two 4-wire VF control circuits available on the OFC system. The patching can be effected locally from the way station where the RPE is provided, or remotely from the test room. 5.4 VoIP based Train Control Communication System 5.4.1 VoIP Based TCCS is the latest among the various control communication systems being used in Indian Railways as per RDSO specification. It leverages open standard IP technology to provide control communication thereby reducing dependence on railway specific equipment/ technology which limits market driven innovation. It provides the benefit of economy of scale and open market competition using common network infrastructure for voice, video and data 5.4.2 The VoIP based TCCS has three major components: 1. Control Communication network (CCN). 2. HQ equipment/servers for control communication 3. Waystation equipment including control phones. 5.4.3 It is desirable that the Control Communication Network be kept logically separate from other networks for performance and security. It may be devised using traditional IP components or can be designed as a L3 VPN on Railways MPLS/SDH infrastructure. 5.4.4 CCN should be designed in such a way that it has sufficient OFC paths available either in the Railways OFC or through other service providers network. This shall provide very high redundancy. 5.4.5 OSPF shall be used as the routing protocol. 5.4.6 All Equipment of VoIP based TCCS shall be monitored through an NMS and it is desirable to monitor through mobile dash-boards also. 5.4.7 It is important that the system is secure, easy to configure and maintain. Hence, it is desirable that all the VoIP equipment used in this system are Indian Railways Telecom Manual - 2021 Page 50  remotely manageable and capable of picking their configuration from a central location. 5.4.8 One communication server shall be used for all the control Boards of the division along with redundant server. It is desirable to keep them at separate networks/locations in the division. 5.4.9 The communication server shall be connected to the Railway exchange using a suitable interface. It must be possible for the controller to dial a railway number and make the subscriber a part of the control conference. 5.4.10 CCN may be used to provide railway auto phones at stations. 5.4.11 Divisions may use either IP control phones or PSTN analog phones at way stations with suitable interface. However, the controller should have a suitable robust dialing arrangement for ease of operation. 5.4.12 Time in all the IP equipment in the CCN shall be synchronized with the communication server. The control communication server may also work as NTP server and shall provide timing information to all the VoIP/IP equipment in the CCN. 5.5 INSTRUCTIONS FOR INSTALLATION 5.5.1 LAYOUT OF CONTROL OFFICE: a) Control offices and the attached test rooms shall be air-conditioned with provision of emergency exit. b) The layout of the control office shall, as far as possible, conform to the layout shown in Annexure II. They should be located, as far as possible, in the ground floor. c) Control offices, especially the controller's booths, shall be acoustically treated to eliminate disturbing noises, echoes, etc., to enable use of microphones and loudspeakers. The reverberation constant of the booth shall not be more than 0.4 seconds. d) All equipment except those requi