Page 9 - IRSEM_Main Book

Introduction to Signal Engineering Manual

S.no Description

1. Signal Engineering Manual is organised as one Main Volume, Appendix I and Appendix II.
2. Numbering Convention of this Manual is given below.

(a) Para numbering: Each Para has a three segment number as: Chapter no. Section No.
Para no. (For Example: 21.1.4).
Further sub-divisions are given as (c) (ii) and explained below

21- Chapter:

1- Section number in Chapter 21:

4 - Para number in section 1: (Indications on Control Panel)
(c) - Sub para: (Signal Indications)

(ii)- Sub sub para: ( Indications that stop..)

 Sub sub sub para: (Failure of green ..)
(b) Annexure Numbering: Annexures are given at the end of chapter and are numbered
as Annexure: 19-A2, where 19 stands for Chapter number, A for Annexure and 2
indicates that it is second Annexure for that Chapter. General Annexures are given at
the end of Manual are for information and are numbered as Annexure G1, G2 etc

(c) Drawing Numbering: Except embedded small drawings (which are in concerned page
itself) all other drawings are given in Appendix-II. Numbering Scheme is given at S.No-
4.

3. Appendix I: Has Maintenance Schedules. They are given numbering such as; Annexure:
14-MS2, where 14 stands for Chapter number, MS stands for Maintenance schedule and 2
indicates that it is second schedule for that Chapter.

4. Appendix II: Has Signalling Drawings for Guidance. They are given numbering such as;
Drg no: 19-D3, where 19 stands for Chapter Number, D stands for Drawing and 3 stands
for third drawing for that chapter.
5. Wherever certain stipulations are not feasible/currently exist, they may be adopted
gradually in due course, whenever the signalling assets are due for replacement or
whenever any major Interlocking alterations are being taken up.

6. The information given in Signal Engineering Manual, Appendix I & II is Intellectual Property
of Indian Railways and is only for official use of Indian Railway Signal Engineers. Copying
/Reproduction by others in any form for other purposes without explicit & written approval of
Signalling Directorate of Railway Board /New Delhi is strictly prohibited.

7. May give your feedback for improvements by e mail to: [email protected]

Disclaimer :- (1) Any Example/scheme given in Signal Engineering Manual, Appendix I & II
showing any equipment or usage of any acronym is only for Technical & conceptual
information of signal Engineers & Technicians and does not endorse any particular
make/Brand
(2) References to other sources such as - GR, ACTM, SOD, Engineering Code, Finance
Code, Payment of wages act, Hours of Employment are given at appropriate paras for ready
referencing. However their accuracy/ latest updates shall be checked by the reader.