Specification for Electronic Interlocking Quiz

A written statement explaining the purpose and background of the document.

The range of applications or topics covered by the document.

A list of related documents that are referenced or used in this document.

A collection of specific terms used in the document and their corresponding definitions.

A list of abbreviations used in the document.

Detailed explanations of key concepts in the document.

General standards and requirements that apply to the specifications mentioned in the document.

Details the changes and updates made to the document throughout its revision history.

A system of block working where automated signals within a block section control train movements to maintain safe headways.

A system designed to prevent train collisions by ensuring a driver's failure to heed signals or speed restrictions won't result in an accident.

A railway signaling method where a defined block section can only be occupied by one train at a time.

The act of ensuring that a product or service meets pre-defined quality standards.

A central facility responsible for managing the movement of trains within radio blocks.

The branch of engineering dealing with the supply of electricity for railway operations.

Research, Development, and Standards Organisation; an organization responsible for setting standards in the Indian railway sector.

A safety measure that ensures a train's safe operation by preventing collisions, derailments, and other accidents.

Electronic Interlocking (EI) system, including equipment and subsystems, must be functional for at least 3 years after commissioning. This period can be extended as needed.

The main equipment room housing the EI system needs to be air-conditioned to enhance the lifespan of components.

The object controller, a part of the EI system, can function in a non-air-conditioned environment, unlike the main equipment room.

Spare parts for the first line maintenance should be readily available to ensure smooth and timely system operation.

The Mean Time Between Failures (MTBF) for crucial modules in the EI System should exceed 100,000 hours. This ensures the system has high reliability.

The complete EI system, including power supply and wiring, should have an availability exceeding 99.98%. This metric signifies high reliability and minimal downtime.

The supplier of the EI system is responsible for providing detailed calculations to demonstrate the system's achievement of the specified availability target.

All tests concerning the EI system should be conducted under standard ambient conditions, unless otherwise specified.

A microprocessor-based system that manages interlocking logic for a railway station. It receives vital inputs from the field, analyzes the data, and generates output commands to control field gears.

A software-based system that records events at a station in chronological order. It logs data related to signalling gears and provides a history of operational activities.

A remote system that allows monitoring the status of signalling gears and systems through data loggers located at different stations.

A system used to control multiple stations from a central location. It enables remote control of interlockings and provides a centralized view of traffic operations.

A compact interlocking system located near field gears. It communicates with the CIU to receive commands and send status updates.

The electronic interlocking system must provide all functionalities as defined by the approved interlocking plan, selection tables, and panel diagrams for the station.

The electronic interlocking system should allow monitoring of internal variables and I/O status through the maintenance terminal and data logger network.

Distributed interlocking allows multiple interlocking systems to be connected, enabling control of field gears across different locations.

A series of tests performed to ensure the quality, functionality, and safety of electronic interlocking systems. These tests cover various aspects including visual inspection, insulation resistance, card-level functionality, fail-safety, system-level functionality, computerized testing, environmental testing, system diagnostics, and software tests.

Tests conducted on individual electronic cards to verify their functionality and performance. They ensure that each card operates as intended and meets the required performance standards.

Tests designed to assess the system's ability to handle failure and prevent malfunctions. They verify the system's safety features and ensure that it can operate safely in case of a failure.

Verification of software functionalities against specific criteria, ensuring the software complies with the required functions, settings, and parameters defined in the selection table.

A type of test where all possible combinations and permutations are tested. This helps to ensure that the system can handle any conceivable scenario and provides a high level of confidence in its reliability.

These tests assess the system's performance in different environmental conditions, such as temperature, humidity, and vibration. This ensures its reliability and functionality across various operational environments.

Tests involving visual inspection of the equipment to identify any visible defects or damage.

Tests conducted to verify that the insulation of the equipment is adequate and prevents electrical faults or shocks.

A system that has been previously approved for use on another railway system, and is therefore accepted for use on the current system without needing full re-testing.

The process of ensuring that suppliers can provide spare parts for a long period, typically 25 years, for the electronic interlocking system.

The manufacturer of an electronic interlocking system is required to provide training to railway officials on the technology at their premises.

Manufacturers must provide a facility for testing and repairing faulty electronic interlocking components, including specialized equipment like simulation test setups and fault diagnostic systems.

An annual contract where the manufacturer agrees to repair or replace any defective electronic interlocking components, ensuring the system's availability.

The manufacturer must provide documentation proving that the electronic interlocking system has passed type tests according to international standards, replacing the need for separate testing.

A test performed to check that the system meets the requirements of the specific railway where it will be deployed.