Introduction to GSM R
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Introduction to GSM R

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Questions and Answers

What is the primary advantage of implementing GSM R in the SAR network?

  • Reduction in the number of train operators required
  • Elimination of all radio base stations
  • Increase in the train speed on the network
  • Significant improvement in the quality of voice communications (correct)

    • Which of the following best describes the function of GSM R within the railway system?

  • Enabling secure voice communications between Drivers/Pilots and the OCC (correct)
  • Controlling the train's speed remotely
  • Providing internet access to passengers
  • Monitoring train schedules via GPS

    • What feature does GSM R offer for communication during Shunting operations?

  • Real-time location tracking of trains
  • Communication using a handheld device direct to the In Cab Radio (correct)
  • Voice recordings of all communications
  • Automated control of shunting movements

    • How does GSM R enhance safety communications between drivers and the Operation Control Center (OCC)?

    <p>Through relay via radio base stations constructed along the railway</p> Signup and view all the answers

    What type of communication does GSM R aim to secure?

    <p>Voice communications between operational staff</p> Signup and view all the answers

    What will the OBU screen display if the Train number is not registered?

    <hr /> Signup and view all the answers

    What is the primary role of the GSM R On Board Unit even if it is not registered?

    <p>To serve as the primary communication source</p> Signup and view all the answers

    Which piece of information is NOT required when giving or receiving a message?

    <p>The time of day</p> Signup and view all the answers

    What should you always do before finishing a communication?

    <p>Have the other person repeat the message back</p> Signup and view all the answers

    Why is it important to verify that you are speaking to the right person during communication?

    <p>To avoid confusion and ensure safety</p> Signup and view all the answers

    What is the first statement that must be made during an emergency call using GSMR?

    <p>This is an Emergency Call</p> Signup and view all the answers

    In what order should the information be stated during an emergency call?

    <p>This is an Emergency Call, where you are calling from, what has happened</p> Signup and view all the answers

    Which of the following reasons is NOT mentioned in the emergency call protocol?

    <p>Your function in the railway system</p> Signup and view all the answers

    What additional action should be taken if emergency services are needed during the call?

    <p>Specify which emergency services are required</p> Signup and view all the answers

    Why is it important to state 'Where you are calling from' during the emergency call?

    <p>To establish the exact location coordination</p> Signup and view all the answers

    What must be done within 3 seconds after pressing the emergency call button?

    <p>Press the PTT button</p> Signup and view all the answers

    What happens when the emergency call button is pressed on the handheld GSMR?

    <p>An emergency tone sounds for a maximum of 5 seconds</p> Signup and view all the answers

    What group ID is used for transmitting an emergency call in GSM-R?

    <p>299</p> Signup and view all the answers

    What mode is activated upon initiating an emergency call?

    <p>Hand-free mode</p> Signup and view all the answers

    What occurs if the PTT confirmation is not received after pressing the button?

    <p>The display switches back to the previously used state</p> Signup and view all the answers

    What is the first action that must be taken if the OBU fails to connect to the Network before departure?

    <p>Report to OCC by other communication methods.</p> Signup and view all the answers

    What should be done if the OBU fails while the vehicle is in motion?

    <p>Report this to the OCC and follow their advice.</p> Signup and view all the answers

    In the event of a failure to connect to the Network, what understanding must be established prior to movement?

    <p>How communication between Driver and OCC will be managed.</p> Signup and view all the answers

    If the Network code 066 is not displayed on the OBU screen, what must not occur?

    <p>Any movement until the issue is resolved.</p> Signup and view all the answers

    What is required after reporting a failure in service while on the move?

    <p>Follow the advice given by the OCC.</p> Signup and view all the answers

    Study Notes

    Introduction to GSM R

    • GSM R stands for Global System for Mobile Communications Railway
    • GSM R improves voice communication quality on the SAR network
    • GSM R enables secure voice communications between Drivers/Pilots and the OCC
    • GSM R uses radio base stations built alongside the railway
    • GSM R enhances communication during Shunting using a handheld device connected to the In Cab Radio

    GSM R On Board Unit (OBU)

    • If an OBU is not registered, the Train number will not be displayed on the OBU screen.
    • The OBU must be used as the primary source of communication, even if it's not registered.
    • The OBU is fully functional and available for use even if it's not registered.

    Communication Procedures

    • When communicating by phone or radio, always state your name, duty, location, and verify the recipient.
    • Always repeat the message received to ensure understanding.
    • The receiver should repeat the message back.

    GSMR Emergency Calls in Driving Cap

    • Pressing the REC Button on the GSMR in a driving cap initiates an emergency call to the OCC (Operational Control Center).
    • The call will be received by all trains in the area.
    • The following information must be communicated in order:
      • "This is an Emergency Call"
      • Caller's name and function
      • Location of the call origin
      • Description of the emergency situation
      • Location of the incident
      • Required emergency services

    Railway Emergency Group Call

    • An emergency call can be made by pressing the emergency call button on the handheld GSMR device.
    • The emergency tone sounds for a maximum of five seconds.
    • The message "Emergency call in GSM-R/GSMASCI" appears on the display.
    • To initiate an emergency call, the PTT button needs to be pressed within three seconds of the emergency tone.
    • If the PTT confirmation is not given, the display returns to its previous state.
    • The emergency call group uses the group ID 299.
    • If an emergency call has been previously initiated, pressing the emergency call button will end the call.
    • All current services are canceled when an emergency call is initiated.
    • The handheld initiates a call with high priority when an emergency call is initiated.
    • The hands-free mode and loudspeaker are activated during an emergency call.

    OBU Failure

    • If the OBU fails to connect to the network before departure, the driver must report the fault to the OCC using other communication methods, such as a mobile phone.
    • Before moving, the driver and OCC need to agree on how communication will be managed without GSM-R.
    • The driver will likely only be authorized to move to the next known communication area.
    • If the OBU fails while the vehicle is in motion, the driver must immediately report the failure to the OCC.
    • The OCC may provide instructions for continuing the journey, potentially involving changes to the movement authority.

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    Description

    This quiz covers the Global System for Mobile Communications Railway (GSM R), focusing on its role in enhancing voice communication quality on the SAR network. Discover how GSM R enables secure communications between drivers, pilots, and the operational control center, as well as its functionality during shunting operations.

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