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GSM-R user procedures (cab radio Version 2)

6.4 Keeping registration

There might be times when you want to keep the registration, for example, when changing

ends on a locomotive or temporarily vacating the cab. Under these circumstances you will

still decommission the driving cab in the normal way by removing the driver’s key,

however, when prompted, you have 10 seconds to keep the registration by simply

pressing

. This will keep the cab radio registered for 30 minutes.

If the radio is not reactivated using the driver’s key within 30 minutes, the radio will

automatically deregister all previously registered functions.

6.5 One-touch communication buttons

There are three one-touch buttons that allow you to make calls by pressing a single button.

They are shown below.

6.5.1 Call signaller button

The call signaller button allows you to easily make a

point-to-point call to the signaller who controls the area.

However, you can only use this function in designated

areas (see section 4.4).

6.5.2 Urgent priority point-to-point call button

Because of the GSM-R network’s ability to tell the difference between types of calls, the

call will be presented to the signaller as an urgent call with a distinctive alarm. However,

there may be other calls of a higher priority ongoing or higher in the call queue; hence the

signaller may not answer immediately.

6.5.3 Railway-Emergency Group call button

6.5.4 Accidental use of the railway emergency group call button

In the event that you accidentally press the red Emergency call button, when the signaller

answers you must inform the signaller that the red button has been accidentally pressed to

avoid confusion and unnecessary train delays.

The Railway-Emergency Group call (red) button allows you to

make an emergency group call that will be received by all cab

radios and people using fixed terminals within a certain area

(see section 7.3.6). Using this button will lead to all trains

stopping in the immediate area.

You must use the PTT with this type of call.

The urgent priority point-to-point call (yellow) button will

make a point-to-point call to the signaller who controls the

area. However, in certain areas not supported by signalling

system based call routing (see section 4.4), the call may be

routed to a Nominated Signaller, for example, the signaller

may not be the controlling signaller for the location

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Siemens NRN 67 Series Spezifikationen Seite 38