Publication reference: EuropeAid/124429/D/WKS/BG. CORRIGENDUM No. 1

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1 Publication reference: EuropeAid/124429/D/WKS/BG CORRIGENDUM No. 1 TO THE TENDER DOCUMENTS Plovdiv Svilengrad Railway Electrification & Upgrading of Corridors IV and IX Signalling, Telecommunication and SCADA Systems Works for the Whole Line In line with the provisions of the Tender Documents for the a.m. tender, Volume 1 "Instructions to Tenderers", Item 9. Explanations concerning tender documents and Item 10.Modifications to Tender Documents, the initial Tender Documents are modified herewith, as follows: 1. Volume 3 Technical Specifications, Part 2 Functional 1.1. In Sub-Clause 4.1. Contract Description, Section 1: Krumovo Katunitsa, Krumovo Station, the whole paragraph shall be replaced by the following: "A new computer interlocking system has to be installed and to be controlled by the new CTC Plovdiv. Possibility for local interlocking control shall be also foreseen." 1.2. In Sub-Clause 4.1. Contract Description, Section 2: Katunitsa Parvomay, Katunitsa Control Station, the whole paragraph shall be deleted in its entirety and shall be replaced by the following: "A new computer interlocking system has to be installed and to be controlled by the new CTC Plovdiv. Possibility for local interlocking control shall be also foreseen." 1.3. In Sub-Clause 4.1. Contract Description, Section 3: Parvomay Dimitrovgrad, Parvomay Control Station, the whole paragraph shall be deleted in its entirety and shall be replaced by the following: "A new computer interlocking system has to be installed and to be controlled by the new CTC Plovdiv. Possibility for local interlocking control shall be also foreseen." 1.4. In Sub-Clause 4.1. Contract Description, Section 4: Dimitrovgrad to Nova Nadezhda, Dimitrovgrad Control Station, the whole paragraph shall be deleted in its entirety and shall be replaced by the following: "A new computer interlocking system has to be installed and to be controlled by the new CTC Plovdiv. Possibility for local interlocking control shall be also foreseen." 1.5. In Sub-Clause 4.1. Contract Description, Section 6: Simeonovgad West Point Harmanli West Point, Simeonovgad Control Station, the whole paragraph shall be deleted in its entirety and shall be replaced by the following: "A new computer interlocking system has to be installed and to be controlled by the new CTC Plovdiv. Possibility for local interlocking control shall be also foreseen." 1.6. In Sub-Clause 4.1. Contract Description, Section 7: Harmanli West Point Harmanli East Point, Harmanli Control Station, the whole paragraph shall be deleted in its entirety and shall be replaced by the following: "A new computer interlocking system has to be installed and to be controlled by the new CTC Plovdiv. Possibility for local interlocking control shall be also foreseen." 1.7. In Sub-Clause 4.1. Contract Description, Section 10: Svilengrad Greek border / Turkish border, Svilengrad Control Station, the whole paragraph shall be deleted in its entirety and shall be replaced by the following: "A new computer interlocking system has to be installed and to be controlled by the new CTC Plovdiv. Possibility for local interlocking control shall be also foreseen." 1.8. In Sub-Clause 4.2. Contract Scope of Signalling Works, item (2) a) the words the remote control signalling centre, the main telecommunications centre, the remote control centre shall 1

2 be replaced by the following: "the remote control centre and the main telecommunications centre." 1.9. In Sub-Clause 4.2. Contract Scope of Signalling Works, item (2) b) the words "for each site (stations and posts)" shall be deleted In Sub-Clause 4.2. Contract Scope of Signalling Works, item (2) d) the words Limited Supervision Mode shall be deleted In Sub-Clause 4.3. Contract Scope of Telecommunication Works, item (2), sub-items f), g), h), i), j), k), l) shall be replaced by the following: "4.4. Radio system for mobile communication (GSM-R) Radio communication with mobile units, based on Global System for Mobile Communications Railways (GSM-R) is envisaged a signed declaration from the Tenderer is requested demonstrating his readiness to take the obligation for provision of GSM-R in conformity with the requirements of the TD as well as for the availability of a supplier for the GSM R Other equipment and facilities a) Operational and Dispatcher communications Closed non-switched connection between a dispatcher and pre-defined subscribers shall be envisaged. b) Station Concentrators New link concentrators shall be envisaged in all stations and points. c) Electronic Information Boards Stations shall be equipped with Electronic Information Boards and the possibility of local, from the station, and remote control shall be envisaged. d) Clocks Clocks shall be envisaged to show the right time to the passengers and station staff. e) Public Address System Public Address System shall be envisaged to keep passengers informed of trains' departure and arrival, passing trains, as well as additional data via acoustic presented information. f) Copper cables In-station copper cables for operation of the track-side systems in the station area as well as for connecting links between systems and devices shall be envisaged Sub-Clause 4.4. Contract Scope of SCADA Works shall be renumbered as Clause 6. Design Life shall be deleted in its entirety and shall be replaced by the following: "6. SERVICE LIFE The service life of the Permanent Systems Works shall be 10 years." In Clause 8. Operational Requirements, Sub-Clause (9) the words "stated in Appendix 14 and are also further" shall be deleted In Clause 8. Operational Requirements, Sub-Clause (10) the words Systems Contractor shall be be replaced by the following: Contractors for Civil&Electrification Works (Phases 1 and 2) In Clause 14. Planning Submissions, after Sub-Clause (1) the following shall be inserted: "a) Station and Halt Areas including buildings and passenger underpasses Local Municipality: Chief Architect of the Settlement, Water Supply and Sewerage Authority, Power Supply Authority, Road Traffic Control Authority and to the Ministry of Environment and Water for the sewerage permit; 2

3 b) Reconstruction of Irrigation Systems Ministry of Agriculture and Forests; c) Interference with frequencies of other bodies/companies Ministry of Defence, mobile operators, etc.; d) Archaeological Sites in proximity to the Alignment Ministry of Culture." In Clause 15. Standards, Sub-Clause (2), the words "in English and Bulgarian" shall be deleted. 2. Volume 3 Technical Specifications, Part 3 Design of Signalling Systems 2.1. In Sub-Clause Specific Signalling Design, (1) System Design, the sub-item ii. shall be replaced by the following: "ii. Method statement for the installation of the required equipment;" 2.2. In Clause 14. Signals and Signalling Structures, Sub-Clause "Signal aspects" is renamed, as follows: "14.1. Signals" 2.3. In Sub-Clause : The words high speed shall be deleted; After the text Table 1 The text, Volume 5, Part 1-2 shall be added 2.4. In Clause 14.3 the Sub-Clauses through shall be renumbered as through Sub-Clause shall be replaced by the following: " The removal of a reading head from its location shall be detected and the operation shall be turned into safe state and shall be indicated to the CTC dispatcher." 2.6. In Sub-Clause Functional and Operational Requirements, after the last item the following shall be inserted: " Each arithmetic unit shall be equipped with reset data buttons concerning each detached isolated section Axle counters equipment shall be capable of detecting an axle of a train, situated upon the counting point. Any successive movement of the axle shall not lead to an incorrect reporting Axle counter system as a whole (counting points and arithmetic units) shall strictly comply with CENELEC standards, particularly with SIL 4 according to EN " 2.7. In Sub-Clause Construction and Installation Requirements, after the last item the following shall be inserted: " The minimum length of each controlled section shall be longer than the longest distance between two adjacent axles of the rolling stock, running in the section Turnouts, comprising "S"-connection, shall be separated in different controlled sections. The separating counting point shall be mounted in the middle of the "S"- connection NRIC Regulations shall be followed when assigning the axle counter reading heads location The electronic connection box shall be closely mounted to the reading head in an environmental resistant package, at gauge clearance from the rail, on which the reading head is fixed." 3

4 2.8. In Sub-Clause Power Supply- axle counters, the item shall be deleted in its entirety. Item shall be renumbered as Clause 16. ERTMS LEVEL 1 TRAIN CONTROL shall be renamed, as follows: "16. ERTMS/ETCS Level 1 Train Control System" In Sub-Clause General, the first item " The Contractor shall provide " shall be deleted in its entirety and shall be replaced by the following: " The Contractor shall provide a Train Control System fully compliant with the requirements of European Rail Traffic Management System/European Train Control System (ERTMS/ETCS) Level 1 Specifications referred to as SRS as defined in the Commission Decision 2007/153/EC of 06 March 2007 (Appendix 17)" Anywhere in the Tender Dossier the words "Limited Supervision Mode" shall be deleted Anywhere in the Tender Dossier the words "SRS 3.0.0" shall be replaced by "SRS 2.3.0" In Sub-Clause General, the second item " The Train Control System shall meet " shall be renumbered as In Sub-Clause General, the third item " ETCS Level 1 shall " shall be replaced by the following: " ETCS Level 1 shall encompass the line from the warning and entry signals of Plovdiv Marshalling yard toward Kroumovo to Svilengrad Station Turkish/Greek Border side." In Sub-Clause General, the fourth item " The Train Control System shall provide " shall be renumbered as In Sub-Clause the sub-item (e) shall be replaced by the following: "(e) Possibility of entering in staff responsible mode in case of a system failure" After Sub-Clause (e) the sentence "1 The Train Control System provided by the Contractor shall include:" shall be renumbered as The Train Control System : In Sub-Clause the text, i.e. ERTMS/ETCS Level 1 Full Supervision Mode, Level 2 and Level 3 shall be deleted Sub-Clauses and shall be deleted in their entirety Sub-Clause shall be renumbered as The words " SRS 3.0.0" therein shall be replaced by the following: " SRS (as defined in the Commission Decision 2007/153/EC of 06 March 2007)." Sub-Clauses through shall be renumbered as through The existing Sub-Clause (new numbering as per item 2.21 above) shall be deleted in its entirety and shall be replaced by the following: " The Contractor shall be fully responsible for the first installation of each type of track-side equipment and on-board equipment and for ensuring that at all times the highest standards of workmanship are maintained. The Contractor shall be responsible for the installation supervision of the remaining equipment." The existing Sub-Clause (new numbering as per item 2.21 above) shall be replaced by the following: " The Contractor shall consider the necessity of in-fill in particular area and, based on operational requirements, shall propose a method of in-fill in compliance with the requirement of these Tender Documents and with ERTMS/ETCS Specification SRS " In the existing Sub-Clause (new numbering as per item 2.21 above) the text after the European Community Legislation, including shall be deleted in its entirety and shall be replaced by the following: the EC Directives on Interoperability 96/48/EC and 4

5 2001/16 and all derivative specifications and UNISIG Class 1 ERTMS/ETCS Specifications SRS and CENELEC standards." In Sub-Clause the words "ATP system" shall be replaced by "ATC system" Sub-Clause shall be replaced by the following: " In special cases, it is necessary that the signal information (target speed) be saved for further operating of the ATC system. This applies in the specific operational situations." Sub-Clause shall be deleted in its entirety and shall be replaced by the following: " The UNISIG ERTMS/ETCS Class 1 System Requirements Specification, Chapter 4 "Modes and Transitions", Subset shall apply for defining the supervision modes of the system." Sub-Clause shall be deleted in its entirety Sub-Clause shall be deleted in its entirety and shall be replaced by the following: " Depending on the information transmitted, two types of information points shall be possible: Points transmitting a switchable data; Points transmitting a non-switchable data The points for transmission of a switchable data shall comprise of line-side electronic units (LEU) and two or more (if necessary) Eurobalises and shall be installed at each way signals The Eurobalises shall be for: non-switchable data (non-switchable Eurobalise or fixed); switchable data (switchable Eurobalise or variable) Encoders (LEUs) connected to signal lamp circuits shall control the variable balises. The link between encoders and balises shall be serial Telegram encoders (LEUs) shall pick up signal aspects from the trackside signals via signal adapters and shall transmit them to the vehicle as a movement authority together with route data at fixed points The information points for non-switchable data shall be mounted in locations, where the following information should be sent to the locomotive: start or end of the railway section equipped with ETCS; temporary speed limitations; correction of the distance up to the next information point Non-switchable Eurobalises shall be also used for positioning as report to the train its location. In long sections, repositioning balises shall be placed for location error correction." The existing Sub-Clause shall be renumbered as and shall read " Requirements of the Eurobalises:". In the texts of this Sub-Clause and anywhere in the Tender dossier the words "balise" or "balises" shall be replaced by "Eurobalise" or "Eurobalises" as appropriate. The sub-item (h) shall be renumbered as (g) The existing Sub-Clause shall be renumbered as and shall read " Requirements of the encoder (LEU):". In the texts of this Sub-Clause and anywhere in this Part of the Tender dossier the words "encoder" or "encoders" shall be replaced by "LEU" or "LEUs" as appropriate. In the texts of this Sub-Clause the word "lamp" shall be deleted In Sub-Clause before the bullet "entry signal of Krumovo station toward Asenovgrad side" the following shall be inserted: " entry signal of Plovdiv Marshalling yard toward Krumovo station;" 5

6 2.33. In Sub-Clause the words "Table 6" shall be replaced by "Table 1" In Sub-Clause (a) the sub-items (i) and (ii) shall be replaced by the following: "(i) EUROBALISES 95% at 25 0 C (ii) LEUs 95% at 25 0 C In Clause 17. Point Operation, the text between the heading "General" and Sub-Clause Operation and Control shall be replaced by the following: " The Contractor shall supply and install power operated point machines for all turnouts that shall be controlled by the Interlocking System, on the running tracks, loops, sidings, etc., as shown in the Volume 5 Optimized Conceptual Schemes Appendices Point operating equipment shall comply with the Bulgarian MoT / NRIC Regulations and other relevant documents The Contractor shall interface with the Civil, Track and Electrification Contractors, to ensure that the power operated point machines and control equipment, to be supplied under this Contract shall be suitable for the track configuration and switch sizes to be employed, and for line speeds up to 200 km/h (for the main tracks, for the remaining as per the turnouts specifications) The point machines shall be small, compact units to present the minimum hazard to staff and shall be simple and reliable, requiring the minimum of adjustment in service Any point machine and control equipment shall have been previously used extensively in a mainline rail environment, without significant problems Point machines shall be provided with identification numbers and letters, in accordance with NRIC requirements." In Sub-Clause the text "Switch diamonds must be operated as a single entity." shall be deleted Sub-Clause shall be replaced by the following: " The Contractor shall install point operating machines after the installation of all new points and crossings by the Civil, Track and Electrification Contractors (Phases I and II)." After Sub-Clause the following shall be inserted: " In particular, the control tables as included in Volume 5, Part 2-21 are indicative only and in case of any discrepancies between them and the Conceptual schemes therein, the Conceptual schemes shall prevail. Therefore, the Contractor shall update, at his own account the control tables on the basis of the final Conceptual schemes, subject to approval by the Beneficiary and the Engineer." Sub-Clauses through shall be renumbered as through In Sub-Clause the text "SIL 3" shall be replaced by "SIL 4" In Sub-Clause the following shall be appended: "The Interlocking System shall have proven already its functionality, reliability and operability elsewhere in conditions similar to those of the Project. " In Sub-Clause the text "An alternative to the Safety Integrity Levels system, for demonstrating safety integrity, may also be acceptable." shall be deleted In Sub-Clauses through the word "TCS" shall be replaced by "ETCS" In Sub-Clause the sub-items (b), (c) and (d) shall be renumbered as (a), (b) and (c) respectively In Sub-Clause the word "ECTS" shall be replaced by "ETCS". 6

7 2.45. In Sub-Clause the sub-items (b) through (e) shall be renumbered as (a) through (d) respectively In Sub-Clause the words "no "call-on" signal off." shall be replaced by "no call-on signal "on"." In Sub-Clause the words "automatic petrol aggregates, currently used" shall be deleted On page 50 Fig. 4 shall be replaced with the following figure: 3. Volume 3 Technical Specifications, Part 4 Design of Telecommunication Systems 3.1. After Sub-Clause a new Sub-Clause shall be inserted as follows: " At Karadjalovo station existing room next to the ticket desk shall be used." 3.2. In Sub-Clause at the end the following shall be added: "The Contractor shall provide protection of the exterior bodies of the air conditioners in cases they are lifted lower than 3 meters above the ground." 3.3. Sub-Clause shall be replaced by the following: " The transmission system shall utilize 1+1 unidirectional protection switching according to G.841." 3.4. After Sub-Clause the following shall be inserted: " The transmission system STM/SDH shall provide for the following STM-1 optical interface:" " One STM-1 Svilengrad-Kapitan Andreevo-Turkish border(bsp) In these section SDH/STM-1 system shall operate in mode flat ring, i.e. ring with 4 fibres of the fibre-optic cable." " One E1 between Svilengrad and Turkish border(bsp) for DCN." " Three E1 between Svilengrad and Kapitan Andreevo.One E1 for GSM-R, One E1 for DCN.One E1 for telephony." 3.5. The existing Sub-Clause shall be renumbered as Sub-Clause shall be replaced by the following: 7

8 " When calling in direction to the plugged-in telephone, the interface shall allow the transmission of calling line identification presentation (CLIP) signals via DTMF prior to the first calling, and FSK or DTMF between the first and second calling." 3.7. Sub-Clause shall be replaced by the following: " When calling in direction to the plugged-in telephone, the interface shall allow the transmission of calling line identification presentation (CLIP) signals via DTMF prior to the first calling, and FSK or DTMF between the first and second calling." 3.8. In Sub-Clause VLANs shall be replaced by minimum 1024 VLANs In Sub-Clause MAC shall be replaced by minimum MAC Sub-Clause shall be deleted in its entirety In Sub-Clause the sentence "GSM-R shall operate in common with ERTMS/ETCS Level 1." shall be deleted Sub-Clause shall be deleted in its entirety Sub-Clauses through shall be renumbered as through Sub-Clause shall be deleted in its entirety and shall be replaced by the following: " The frequency band for the operating of the GSM-R system is / MHz, but for the project only the UIC frequency band shall be used, which is defined in [CEPT 25-09] MHz (mobile station transmit) paired with MHz (base station transmit)." In Sub-Clause the words (dual mode). A common control panel (MMI) shall be used shall be deleted In Sub-Clause the text "-98 dbm" shall be replaced by "-95 dbm" In Sub-Clause the text "verify with the government" shall be replaced by "be informed by the Beneficiary" In Sub-Clause the text "investigate with the national telecommunication and frequency authorities" shall be replaced by "be informed by the Employer" In Sub-Clause the word "cable" shall be replaced by "capable". 4. Volume 3 Technical Specifications, Part 5 Design of SCADA System 4.1. The footer of the whole Part 5 shall read "Part 5 Design of SCADA System" In Clause 1. Introduction, item (3) the words engage the Designer who shall shall be deleted In Sub-Clause System requirements, the last sentence of item (3) shall read as follows: "The MMI and all documentation shall be also presented in Bulgarian and English languages." 4.4. In Sub-Clause 14.4.(2) after the words "local operator's panel" the following shall be added: "(to be supplied by Phase I and Phase II Contractors)" 4.5. In Sub-Clause Man Machine Interface, item (2), after the word "Bulgarian" the following shall be inserted : "and English languages" 4.6. Sub-Clause Voice Communications System, item (1) shall be replaced by the following: "(1) Voice communications for the Electrical Control Room shall be via the Power Supply Dispatcher Connection (Volume 3, Technical Specifications, Part 4 Design of Telecommunications, Chapter 21). The radio (Volume 3 Technical Specifications 8

9 Part 4 Design of Telecommunications, paragraph 20) Radio System for mobile communications GSM-R, as well as normal switched telephone extensions, shall provide an auxiliary communication." 4.7. Sub-Clause Telecommunications Terminations, items (2) and (3) shall be deleted in their entirety Sub-Clause Safety Integrity Level shall be deleted in its entirety. 5. Volume 3 Technical Specifications, Appendix Clause 1. European Standards shall be replaced by the following: "1. European Standards (1) EN Traffic Control Signal Heads Equipment (2) EN Protection degrees (codes IP) (3) EN Railway Applications Electromagnetic Compatibility Part 3-2: Rolling stock - Apparatus (3a) EN Railway Applications Electromagnetic Compatibility Part 4: Emission and immunity of the signalling and telecommunications apparatus (4) EN Railway Applications Fixed Installations (5) EN Railway Applications Stationary installations. Direct current communication equipment (6) EN Railway Applications Insulation Coordination (7) EN Railway Applications Environmental Conditions for Equipment Part 1:Equipment for on board rolling stock (7a) EN Railway Applications Environmental Conditions for Equipment - Part 3: Equipment for signalling and telecommunications (8) EN Railway Applications The Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS) (9) EN Railway Applications Communication, signalling and processing systems - Software for Railway Control and Protection Systems (10) EN Railway Applications Communication, signalling and processing systems - Safetyrelated electronic systems for signalling (11) EN Railway Applications Electronic Equipment used on Rolling Stock (12) EN Railway Applications Part 1 Requirements for Safety-Related Communication in Closed Transmission Systems (12a) EN Railway Applications Requirements for Safety-Related Communication in Closed 9

10 Part 2 Transmission Systems (13) EN Railway Applications Compatibility between Rolling Stock and Train Detection Systems (14) EN V1.2.1 (15) Cenelec PD (16) EN ISO Electromagnetic compatibility and questions about radio specter (ERM); Devices with short range of operation (SRD); Automatic identification of railway rolling stocks (AVI), working in the range of 2,45 GHz; Part 1: technical characteristics and methods for measuring. Railway Applications Communication, Signalling and Processing Systems. Hazardous Failure Rates and Safety Integrity Levels (SIL) Quality Management System Requirements" 5.2. Clause 3. ERTMS / ECTS Class 1 Specifications Document E 001-V1 shall be replaced by the following: "3. ERTMS / ETCS Class 1 Specifications Document E-001 V1 Set of main documents which define the ERTMS/ETCS Class 1 Specification for Interoperability: Reference Document Name Version UIC ETCS FRS ERTMS/ETCS Functional Requirements Specification E 5362 ERTMS/ETCS Functional Statements UNISIG SUBSET-023 Glossary of Terms and Abbreviations UNISIG SUBSET-026 ERTMS/ETCS System Requirements Specification UNISIG SUBSET-033 FIS for Man-Machine Interface UNISIG SUBSET-036 FFFIS for Eurobalise UNISIG SUBSET-040 Dimensioning and Engineering rules UNISIG SUBSET-041 Performance Requirements for Interoperability UNISIG SUBSET-108 Interoperability-related consolidation on TSI Annex A documents UNISIG SUBSET-054 Assignment of Values to ETCS variables UNISIG SUBSET-085 Test Specification for Eurobalise FFFIS" Clause 6. European Legislation shall be replaced by the following: "6. European Legislation 96/48 Council Directive 96/48/EC of 23 July 1996 on the interoperability of the trans-european high speed rail system 10

11 2001/16 Directive 2001/16/EC of 19 March 2001 of the European Parlament and of the Council on the interoperability of the conventional rail system 2004/50 Directive 2004/50/EC amending Directives 96/48 and 2001/16 CR TSI CCS Technical Specification for Interoperability relating to the controlcommand and signaling subsystem on the trans-european conventional rail system (Annex to the Directive 2001/16) Commission Decision 2006/679/EC of 28 March 2006 Commission Decision 2006/860/EC of 07 November 2006 Commission Decision 2007/153/EC of 06 March 2007 concerning a technical specification for interoperability relating to the control-command and signalling subsystem of the trans- European conventional rail system (adopting the CR TSI CCS) concerning a technical specification for interoperability relating to the control-command and signalling subsystem of the trans- European High Speed rail system and modifying Annex A to Decision 2006/679/EC of 28 March 2006 concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans-european conventional rail system. Modifying Annex A to Decision 2006/679/EC concerning a technical specification for interoperability relating to the controlcommand and signalling subsystem of the trans-european conventional rail system and Annex A to Decision 2006/860/EC concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans- European high speed rail system. 6. Volume 3 Technical Specifications, Appendix In Sub-Clause 1.2. EIRENE and MORANE standards, at the end of the document name for the standard A11T the following shall be added: " - Version 12" 6.2. In Sub-Clause 1.2. EIRENE and MORANE standards, at the end of the document name for the standard PSA167D005 the following shall be added: " - Version 7" 6.3. In Sub-Clause 1.2. EIRENE and MORANE standards, at the end of the document name for the standard PSA167D006 the following shall be added: " - Version 15" 6.4. In Sub-Clause 1.2. EIRENE and MORANE standards, at the end of the table the following shall be added: "ECC/DC(02)05 ECC Decision of 5 July 2002 on the designation and availability of frequency bands for railway purposes in the and MHz bands." 6.5. In Sub-Clause 1.5. EN standards, at the end of the table the following shall be added: EN EN EN Railway applications Environmental conditions for equipment Part 1: equipment on board rolling stock, Version 1999 Railway applications Environmental conditions for equipment Part 3: equipment for signalling and telecommunications, Version 2003 Railway applications The specification and demonstration of reliability, availability, maintainability and safety (RAMS), Version

12 EN EN EN EN Railway applications Communication, signalling and processing systems Software for railway control and protection systems, Version 2001 Railway applications Communication, signalling and processing systems Safety related electronic systems for signalling, Version 2003 Railway Applications Part 1: Requirements for Safety-Related Communication in Closed Transmission Systems Railway Applications Part 2: Requirements for Safety-Related Communication in Open Transmission Systems 7. Volume 5 Optimized Conceptual Scheme / Drawings 7.1. In Part 2. Conceptual Optimized Signaling Systems Schemes, the following drawings shall be replaced with new ones: Original drawing To be replaced with drawing Part 2-1 Part 2-1-new Part 2-5, 2-6 Part 2-5, 2-6-new Part 2-6 Part 2-6-new Part 2-19, 2-20 Part 2-19, 2-20-new Part 2-20 Part 2-20-new N.B. Besides the EuropeAid website, all of the above - including the drawings is available in electronic form also on the website of the Contracting Authority, at 12

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