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GSM-R user procedures (cab radio Version 2)

7.1.2 Receiving an urgent point-to-point call

There may be times when the signaller needs to communicate urgently with you, but the

circumstances do not warrant the use of a railway emergency group call.

The urgent point-to-point call allows the signaller to contact you quickly, as the priority of

the call will automatically end an ongoing call you may be in which has a lower priority,

such as a normal point-to-point call.

The cab radio will respond in the same way as with a normal point-to-point call (see

section 7.1.1) however, the urgency of the call will be displayed.

GSM-R GB

1A45

Salisbury Panel 1

Connected URGENT

Urgent calls the signaller makes will be announced with the following message.

“This is an urgent call from the signaller at………….. to the driver of (train reporting

number)…”

When you receive an urgent point-to-point call, you must respond to it as quickly as

possible, as long as you can do so safely.

7.1.3 Receiving a railway emergency group call

You might receive a railway emergency group call (see section 2.3.4). If you are already

in a call when the cab radio receives the railway emergency call, your current call will be

terminated and you will join the emergency call. If this happens you should replace the

handset in the cradle and listen to the emergency communication (this action will not

terminate the railway emergency call as you will not be the initiator).

 Remember a railway emergency group call must be treated as shown in the rule book

relating to phrases when using a radio in which only one person can be heard at a

time.

The railway emergency group call is split into three clear phases.

The cab radio will answer an incoming urgent

point-to-point call automatically after 2 ring

cycles.

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Siemens NRN 67 Series Especificaciones Pagina 42