Railway Board Circular

NCR Circular

A

Technical Circular

1

Technical Circular 01/2025 :  Power Supply System for EI installation.

2

Technical Circular 05/2024: Checklist for Automatic Signalling Works (ABS) Commissioning

3

Technical Circular 04/2024: Standardization of Power supply arrangement from CLS/Auto changeover panel to IPS installation

4

Technical Circular 03/2024: Drawings and Registers to be maintained at each stations

5

Technical Circular 02/2024:Standardization of VDU layout from EI installations.

6

Technical Circular 01/2024: Different Boards used in Signalling

7

Technical Circular 01/2023:Cyber security TAN no. EI-TAN-SECURITY

8

Technical Circular 05/2022: Modifications, Alterations to existing EI stations Hitachi (Ansaldo), Medha & Siemens make.

9

Technical Circular 04/2022 : Relays

10

Technical Circular 03/2022:Maintenance of Glued joints

11

Technical circular No. 02/2022 : Pre-commissioning Joint Check list for Signalling Installation

12

Revised Technical Circular No. 01/2022 : Guidelines for Testing EI system before commissioning

B

Maintenance Circular

1

Maintenance Circular No. 02/2025 : Maintenance and monitoring of Signalling Fiber laid over section.

2

Maintenance Circular No. 01/2025 : Auto resetting/Manual resetting of AXLE Counter.

3

Maintenance Circular No. 05/2024 : Maintenance Schedule of Electronic Interlocking System having Inbuilt Block Panel.

4

Maintenance Circular No. 04/2024: Minimum technical work should know by Technician/Sr. Technician

5

Maintenance Circular No. 03/2024 : Maintenance guidelines for upkeep of various passwords of EI/Systems.

6

Maintenance Circular No. 02/2024 : checklist to be followed during maintenance of Automatic Signalling Sections

7

Maintenance Circular No. 01/2024 : Maintenance of Signalling gear and issue of disconnection memo in failure.

8

Maintenance Circular No. 08/2023:Maintenance Guidelines for Fire Alarm and Detection System audit inspection.

9

Maintenance Circular No. 07/2023: Analysis of Relay Contacts & Voltage in Relay Room.

10

Maintenance Circular No. 06/2023:Maintenance Guidelines for Lightning and Surge Protection System

11

Maintenance circular No. 05/2023: Signal Maintenance Cards- Asset Register

12

Maintenance Circular No.04/2023 :Improvement in maintenance practices

13

Maintenance Circular No. 03/2023:Protocol for Cable meggering and Cable cut cases.

14

Maintenance Circular No. 02/2023:Maintenance Protocol for Electric Point Machine

15

Maintenance Circular No.01/2023 :  Tool Kit.

16

Maintenance Circular No 04/2022:TWS Point.

17

Maintenance Circular No.- 03/2022: IPS 

18

Maintenance Circular No. 02/2022: Data logger Validation, fault logic development, Messaging utilization of analog inputs.

19

Maintenance Circular No. 01/2022: Relay Voltage