Electronic Interlocking Systems for Big Yards
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Questions and Answers

What is the minimum AC input voltage the EI system must operate with?

  • 150V (correct)
  • 250V
  • 200V
  • 100V

    • What is the maximum frequency variation permitted for the EI system's power supply?

  • 50Hz to 52Hz
  • 47Hz to 53Hz
  • 48Hz to 52Hz (correct)
  • 45Hz to 55Hz

    • Which provision is explicitly mentioned to handle multiple power supply sources?

  • Redundant power supply units
  • Automatic voltage regulation
  • Power supply change over panel (correct)
  • Uninterruptible power supply (UPS) system

    • What type of protection is required for the EI system to prevent damage from short circuits?

    <p>Self-restoring type</p> Signup and view all the answers

    What type of malfunctioning does the system need protection from, as mentioned in the text?

    <p>False or spurious feed</p> Signup and view all the answers

    What document is specifically referenced for surge protection and earthing arrangement?

    <p>RDSO SPN 197/2008</p> Signup and view all the answers

    What is the purpose of the power supply arrangement requirement mentioned in section 8.12.6?

    <p>To ensure uninterrupted operation even if one processor fails</p> Signup and view all the answers

    What color sequence does the VDU screen flash to indicate the color monitor is healthy?

    <p>Red, Blue, Green</p> Signup and view all the answers

    What is the main benefit of the capability mentioned in section 8.12.7?

    <p>Improved reliability of the system</p> Signup and view all the answers

    Which of the following is NOT a condition for a hot standby VDU switch over?

    <p>Failure of the EI system</p> Signup and view all the answers

    What type of cable is used to connect the VDU and CIU?

    <p>EI.OFC</p> Signup and view all the answers

    How is the basic power supply for the VDU provided?

    <p>By the user railway</p> Signup and view all the answers

    What is the minimum number of colors/symbols used to display the status of field equipment and track circuits on the VDU?

    <p>Two</p> Signup and view all the answers

    In case of an emergency cancellation through the VDU, what must be done immediately?

    <p>Reconfirm with the operator</p> Signup and view all the answers

    What type of indication panel is provided for big yards, if desired by the user railway?

    <p>LCD based</p> Signup and view all the answers

    What is the primary purpose of the flashing red, green, and blue dots on the VDU screen?

    <p>To ensure the color monitor is functioning correctly and displaying the correct colors</p> Signup and view all the answers

    What is the primary subject of the document titled 'Specification for Electronic Interlocking For Big Yards'?

    <p>Electronic interlocking systems for big yards</p> Signup and view all the answers

    Who is listed as the author of the document?

    <p>Alok Katiyar</p> Signup and view all the answers

    What does the document number RDSO/SPN/203/2011 signify?

    <p>A unique identifier for the document</p> Signup and view all the answers

    What is the effective date of the document's version?

    <p>13/09/2011</p> Signup and view all the answers

    What designation is associated with the person who checked the document?

    <p>DD/Signal-III</p> Signup and view all the answers

    How many pages does the document contain?

    <p>24</p> Signup and view all the answers

    Which organization issued the document?

    <p>Research Designs &amp; Standards Organization</p> Signup and view all the answers

    What is the version number of this document?

    <p>1.0</p> Signup and view all the answers

    Which standard must the Ethernet switch/modem comply with for communication between electronic interlockings?

    <p>EN 50159-1 &amp; 2</p> Signup and view all the answers

    What type of cable is required for interconnecting EIs installed in different rooms or locations?

    <p>RDSO approved OFC cable</p> Signup and view all the answers

    What feature allows the Railway to carry out minor yard modifications independently?

    <p>User-friendly graphic based design tool</p> Signup and view all the answers

    In the case of connecting peripheral devices to the EI, what is required if isolation from the peripheral system is necessary?

    <p>Suitable isolators</p> Signup and view all the answers

    What type of display is mandatory on all modules of the electronic interlocking systems?

    <p>LED/LCD display</p> Signup and view all the answers

    What must the communication provided between various EIs comply with?

    <p>Requirements for transmission of vital safety information</p> Signup and view all the answers

    What is the relationship between optical fiber communication (OFC) and vital serial connections?

    <p>All vital serial connections must utilize OFC for communication.</p> Signup and view all the answers

    What must be included in the interlocking plan according to the document?

    <p>Approved selection/control table</p> Signup and view all the answers

    What is the primary purpose of the Electronic Interlocking system specified in the document?

    <p>To manage points, signals, and other controls safely</p> Signup and view all the answers

    What is a key feature of the connectivity between the central interlocking unit and the object controller?

    <p>It uses optical fibre cable to prevent failure.</p> Signup and view all the answers

    In which scenario is it permissible to provide Electronic Interlocking at stations with fewer than 200 routes?

    <p>If there are numerous signaling input/output functions</p> Signup and view all the answers

    What equipment is NOT part of the Electronic Interlocking system?

    <p>Train Dispatch Unit</p> Signup and view all the answers

    Which function does the Central Interlocking Unit serve in the Electronic Interlocking system?

    <p>Performing interlocking and fail safety functions</p> Signup and view all the answers

    What would be the role of the Object Controller within the Electronic Interlocking system?

    <p>To directly command signaling gears and relay connections</p> Signup and view all the answers

    What is the function of the VDU/Operator PC in the Electronic Interlocking system?

    <p>To display yard status and generate commands for interlocking</p> Signup and view all the answers

    Where can an additional VDU/Screen be placed in the Electronic Interlocking system?

    <p>At end cabins for monitoring yard status</p> Signup and view all the answers

    What information must be submitted to RDSO regarding the Quality Assurance Program?

    <p>A comprehensive report detailing the Verification and Validation (V&amp;V) procedures used, with specific focus on their conformity to specified standards.</p> Signup and view all the answers

    In what situation can RDSO have an independent agency verify and validate the software and hardware?

    <p>If the supplier's documentation for the V&amp;V process is considered insufficient by RDSO.</p> Signup and view all the answers

    What is the primary function of the Maintenance Terminal (MT) described in the text?

    <p>To provide a platform for monitoring and diagnosing potential issues with the software and hardware systems.</p> Signup and view all the answers

    What specific functionality of the Maintenance Terminal is essential for analyzing past events and simulating yard layout?

    <p>The capacity to generate exception reports for the purpose of detailed analysis.</p> Signup and view all the answers

    What type of data storage is required to be incorporated into the Maintenance Terminal?

    <p>Storage capacity of at least 320 GB for recording and storing various data.</p> Signup and view all the answers

    What action is required to be implemented when a module or card becomes faulty within the system?

    <p>The supplier must provide a diagnostic facility to identify the faulty module or card and detail the necessary corrective action.</p> Signup and view all the answers

    What is the preferred method of connecting the Maintenance Terminal (MT) to the Electronic Interlocking (EI)?

    <p>A fiber optic cable (OFC) connection for reliable and efficient communication.</p> Signup and view all the answers

    What specific language is used to present the Signaling circuit/manuals on the Maintenance Terminal (MT)?

    <p>A simplified and localized language, accessible to engineers who may not be familiar with technical jargon.</p> Signup and view all the answers

    Study Notes

    Document Details

    • Document No: RDSO/SPN/203/2011
    • Document Title: SPECIFICATION FOR ELECTRONIC INTERLOCKING FOR BIG YARDS
    • Version No: 1
    • Date Effective: 13/09/2011
    • Reference: 16.09
    • Number of Pages: 24
    • Organization: RESEARCH DESIGNS & STANDARDS ORGANIZATION
    • Location: MANAK NAGAR, LUCKNOW – 226011

    Electronic Interlocking for Big Yards

    • Specification details for electronic interlocking systems for large railway yards
    • Covers systems with over 200 routes, high reliability requirements
    • Includes microprocessor based equipment for points, signals, track circuits, etc.
    • System capable of interfacing with advanced systems using serial/Ethernet ports
    • Includes VDU/Operator PC, Central Interlocking Unit, Object Controller, Maintenance Terminal

    Document Data Sheet

    • Designation: RDSO/SPN/203/2011
    • Version: 1.0
    • Title of Document: Specification for Electronic Interlocking for Big Yards
    • Authors: See Document Control Sheet
    • Signed by: Alok Katiyar, Shri Mahesh Mangal
    • Designation of Signatories: Director/Signal/RDSO, Sr. Executive Director/Signal, RDSO
    • Abstract: This document defines Electronic Interlocking for big yards.

    Document Control Sheet

    • List of individuals involved in document preparation and approval
    • Names of those involved: Jitendra Kumar, S. N. Ram, Alok Katiyar, Mahesh Mangal
    • Designations: Member/RDSO, RDSO Member/Prepare, Signing Authority/RDSO, Approving Authority/RDSO
    • Functions assigned: Prepare, Prepare, Signed by, Approve

    Amendments

    • Information regarding amendment history to the document
    • Version: RDSO/SPN/203/2011
    • Chapter/Annexure: FIRST ISSUE
    • Effective Date:

    Table of Contents

    • Comprehensive list of sections in the document along with page numbers.
    • Contains sections such as Foreword, Scope, Applicable Documents, Terminology, General Requirements, etc.
    • Key topics include Functional Requirements, Technical Requirements, System/Hardware information, and testing procedures.

    Foreword

    • Serial No.: RDSO/SPN/203/2011
    • This specification is a standard document for Electronic interlocking for big yards (likely revised or updated).

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    Related Documents

    Big Yard EI Availability Specification (RDSO/SPN/203/2011 PDF)

    Description

    This quiz explores the specifications for electronic interlocking systems designed for large railway yards. It covers key components such as microprocessors, operator PCs, and interfaces for advanced systems, ensuring high reliability for managing over 200 routes. Test your knowledge on the details outlined in the specification document!

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