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GSM-R user procedures (cab radio Version 2)

When the cab radio receives an incoming PA

call, the display will be similar to that described

in section 7.1.1. However, once the call is

connected, the display will show that the call is

connected to the PA.

 The total duration between releasing the DSD and the alarm being sent is 1 minute;

this is the same as existing CSR radios.

GSM-R GB

1A26

DSD Alarm

Failed

After receiving the DSD alarm message the signaller is likely to respond by making an

urgent point-to-point call to your train. If this gets no response, the signaller will make a

PA announcement to your train (where the PA is connected to the cab radio).

The PA announcement allows the signaller to pass information to those travelling on a

specific train and to seek assistance for you if he or she believes you may be

incapacitated.

GSM-R GB

1A26

Salisbury Panel 1

Connected to PA

DSD sent

The signaller will make the following announcement.

“Ladies and gentlemen, due to operating difficulties there is likely to a short delay to

your service. In order to assist the driver, will any railway staff travelling on the

train please make themselves known to the train driver. Further information will be

given shortly.”

If you can respond you must wait until the announcement has finished and the call to the

PA terminated. If you need to speak to the signaller about the announcement, you must

make a separate point-to-point call to the signaller.

If transmission of the DSD alarm message

fails, the cab radio will try again up to two times

after which time an appropriate failure

message will be displayed.

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Siemens NRN 67 Series Especificaciones Pagina 64