Network Redundancy and Communication Verification

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Questions and Answers

What is the main purpose of the Site Acceptance Test Scheme for Stationary KAVACH (IRATP) Application Logic for Version 4.0?

To validate the RFID tag layout in the Stationary KAVACH

To ensure the Electronic Interlocking system is functioning correctly

To test the redundant communication systems

To verify the signal correspondence in the KAVACH system (correct)

What is the recommended time-out for deregistration in Stationary KAVACH?

5-10 seconds (correct)

20-25 seconds

30-35 seconds

10-15 seconds

What is the purpose of the virtual simulator in the Stationary KAVACH system?

To test the redundant communication systems

To select the routes or entry-exit signal (correct)

To raise the loco speed

To verify the signal correspondence in the KAVACH system

What is the function of the RIU in the KAVACH system?

To provide Modem signals Signup and view all the answers

What is the main purpose of the Electronic Interlocking system?

To ensure safe train operation Signup and view all the answers

What is the significance of the Table of Control in the KAVACH system?

It defines the routes of the approved ToC Signup and view all the answers

What happens when the loco speed is raised in the Stationary KAVACH system?

The train stops in front of the entry signal Signup and view all the answers

What is the primary function of the Adjacent SVK in the KAVACH system?

To verify signal correspondence Signup and view all the answers

What is the prerequisite for carrying out tests mentioned at clause no. 6?

All RFIDs are installed in the section under test Signup and view all the answers

What is established on redundant vital network to ensure connectivity?

Adjacent Stationary KAVACH connectivity Signup and view all the answers

What is required to be noted before relay events testing?

Electronic Interlocking and KAVACH NMS time difference Signup and view all the answers

What is the requirement for Virtual loco simulators?

All of the above Signup and view all the answers

What is part of the installation of Stationary KAVACH equipment?

All of the above Signup and view all the answers

What is required for TSRMS connectivity?

It shall be established on redundant vital network Signup and view all the answers

What is the purpose of RSSI and OHE mast survey?

To install Stationary KAVACH equipment Signup and view all the answers

What is required for NMS details?

They shall be programmed and connected to the test Stationary KAVACH Signup and view all the answers

What is the purpose of testing level crossing gate information?

To check whether the level crossing gate is functioning properly Signup and view all the answers

What happens when the communication mandatory area is 1.5 Km or more beyond the last stop signal?

Train length details are sent by handing over stationary KAVACH Signup and view all the answers

What is the purpose of the Track Profile Table?

To test the level crossing gate information Signup and view all the answers

What is the role of stationary KAVACH in updating train length details?

It updates train length details after every block section entry Signup and view all the answers

What is the significance of the REF RFID signal?

It indicates the train's entry point Signup and view all the answers

What happens when the communication mandatory area is within 1.5 Km after the last stop signal?

Train length details are sent to accepting stationary KAVACH Signup and view all the answers

What is the purpose of the Site Acceptance Test Scheme for Stationary KAVACH?

To test the Stationary KAVACH application logic Signup and view all the answers

What is the significance of the LC Gate Name in the Track Profile Table?

It indicates the level crossing gate type Signup and view all the answers

What is the primary purpose of verifying all Field inputs in the Site Acceptance Testing of Stationary KAVACH?

To validate the functionality of Relay and EI Interface Signup and view all the answers

What is the primary consideration for placing adjacent tags in diverging lines?

To avoid stopping of trains where not required Signup and view all the answers

What is the role of the OEM in the Site Acceptance Testing of Stationary KAVACH?

To ensure the data integrity of the Stationary KAVACH system Signup and view all the answers

What is the purpose of checking the Tag data in the Station Section?

To verify the Station Working Rules Signup and view all the answers

What is a prerequisite for starting the Site Acceptance Testing of Stationary KAVACH?

The approval of the RFID tag layout and tag data Signup and view all the answers

What is the purpose of verifying the Signal aspect linking and Signal naming correspondence in the Site Acceptance Testing of Stationary KAVACH?

To ensure the correct signal aspects and naming correspondence Signup and view all the answers

What is the significance of the Stationary KAVACH ID in the test reports?

It represents the train's location Signup and view all the answers

What is the purpose of the manual SoS generation from Stationary KAVACH test reports?

To facilitate manual intervention in the KAVACH system Signup and view all the answers

What is the purpose of the KAVACH Table of Control in the Stationary KAVACH system?

To define the control logic for the Stationary KAVACH system Signup and view all the answers

What is the requirement for ensuring connectivity in the redundant vital network?

Use of redundant communication systems Signup and view all the answers

What is the role of the Redundant Communication systems in the Stationary KAVACH system?

To provide a redundant communication channel for critical systems Signup and view all the answers

What is the primary function of the Electronic Interlocking system?

To control the movement of trains Signup and view all the answers

What is the significance of the RFID Tag data in the Stationary KAVACH system?

It is used to identify the location and speed of the trains Signup and view all the answers

What is the role of the Electronic Interlocking system in the Stationary KAVACH system?

To control the movement of trains and ensure safe operations Signup and view all the answers

What is the purpose of the KAVACH Table of Control?

To monitor the performance of the KAVACH system Signup and view all the answers

What is the significance of the Station Working Rules in the Station Section?

They provide the guidelines for the Station Section Signup and view all the answers

Study Notes

Site Acceptance Test Scheme for Stationary KAVACH (IRATP) Application Logic for Version 4.0

The document outlines the procedure for Site Acceptance Testing of Stationary KAVACH using Onboard KAVACH and Onboard KAVACH Simulator.
The objective of the test procedure is to verify the following in sequence:
- Verification of all Field inputs (Relay/EI Interface)
- Verification of Redundant Communication for GPS, GSM, Radio Modems, RIU, ASVK, TSRMS, and Electronic Interlocking (EI)
- Verification of Signal aspect linking and Signal naming correspondence
- Verification through real train testing
- Verification of Maximum number of KAVACH equipped trains to be handled by the test Stationary KAVACH

Pre-requisites for Site Acceptance Testing

The following are to be ensured prior to start of SAT for Stationary KAVACH:
- Approved RFID tag layout, RFID Tag data, KAVACH Table of Control, and KAVACH track profile table

Verification of Redundant Communication

Verification of redundant communication is to be done for:
- GPS
- GSM
- Radio Modems
- RIU
- ASVK (Adjacent Stationary Vital KAVACH)
- TSRMS (Temporary Speed Restriction Management System)
- Electronic Interlocking (EI)

Verification of Field Inputs

Electronic Interlocking and KAVACH NMS time difference shall be noted before relay events testing
There shall be no difference ideally

Verification of Signal Correspondence

The deregistration time-out shall be made to 5-10 seconds as feasible in Stationary KAVACH to save on time
The tests are to be carried out based on the routes of the approved ToC
The virtual simulator shall have provision to select the routes or entry-exit signal
The loco speed shall be raised and the first two tags in the route before entry signal shall be read automatically and train shall stop in front of the entry signal

Installation and Connectivity

Installation of Stationary KAVACH equipment and all its associated sub-assemblies and interfaces is complete
Field Input Relay wiring is completed and Bell test copy is available
Copy of approved circuits integrated with station circuits shall be available
All RFIDs are installed in the section under test before carrying out tests
Installation of Radio Tower, antennae, antenna cables, tower box is complete
Power wiring for the entire equipment including relays, radios, and aviation lamp is completed
RSSI and OHE mast survey is complete
Adjacent Stationary KAVACH connectivity is established on redundant vital network
TSRMS connectivity is established on redundant vital network, if TSR is to be tested
RIU wiring is complete
SMOCIP is installed
NMS details are programmed and connected to the test Stationary KAVACH

Other Tests

LC Gate information testing: If any level crossing gate is available in the route, the same shall be tested and tabulated
Train length measurement testing: These tests are aimed to check whether train length is updated properly after every block section entry
KAVACH Unusual Stoppage in Block section test reports: This SoS will not be generated in Station Section
Manual SoS Generation from Stationary KAVACH test reports: This test is to verify the manual generation of SoS from Stationary KAVACH

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Description

This quiz assesses knowledge on verifying redundant communication in networks, including relay and interface configurations. It covers concepts related to network reliability and fault tolerance.