Siemens NRN 67 Series Spezifikationen PDF herunterladen (Seite 43)

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GSM-R user procedures (cab radio Version 2)

Phase 1 - the warning

All cab radio users in the emergency group call area will hear an alarm and see a warning

on the display, even if the radio has not yet been registered.

When you receive a railway emergency group call,

the cab radio will let you know with an audible alarm

message “Emergency, Emergency, Emergency” and

the message ‘STOP EMERGENCY’.

When you receive a railway emergency group call, you must stop your train immediately

and not move until authorised to do so by the signaller.

 If your train enters the emergency group call area after the call was set up, you will

still receive the alarm and ‘STOP’ message. You must stop your train immediately.

However, you will join the call part-way through and so may miss the beginning of the

voice message.

Phase 2 – communicating

The end of the alarm shows that the railway emergency group call has begun and that all

users in the emergency group call area are connected.

You can see confirmation that the call is connected

and a reminder that the PTT must be used if you are

going to communicate with the signaller.

Once connected, you will hear speech through the

loudspeaker. Once you have brought your train to a

complete stand, you must acknowledge the railway

emergency call and cancel the flashing ‘STOP’

message by pressing the button.

The person who makes the call can now pass their message. All other users will be able

to hear the message, but must not interrupt. To keep control of the multi-party call, only

one mobile user can speak at a time. This is governed by the network and using the PTT

button.

If other users need to speak, they must wait for the first conversation to end and for the

signaller to invite any other parties to add any further information relevant to the

emergency.

You will see a reminder on the cab radio to prompt you to use the PTT if you need to

speak. When you press the PTT you will hear a short confirmation tone while the network

sets up the speech channel. Once the speech channel is available to you, at the end of

the short tone, you will see the message “Speak” and you can now pass your message to

the signaller.

 If another cab radio or handportable user has taken control of the voice connection to

the signaller, you will not be able to speak until the other user releases their PTT. In

GSM-R GB

1A45

STOP EMERGENCY

Incoming call

GSM-R GB

1A45

STOP EMERGENCY

Connected PTT

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