
RSSB Page 23 of 87
GSM-R user procedures (cab radio Version 2)
5.1 Cab radio buttons and what they do
Used to enter numbers and alpha digits when
registering, onto the display. Also used to enter text
when searching the phonebooks.
Used to answer calls and accept user entry.
Used to reject or end a call and cancel user entry.
Press it once to delete the last character entered or
hold it down to clear all the characters entered.
Provides access to the menu.
Provides access to the train operator phonebook
Used to scroll up through the screen or menu options
or to increase the volume.
Used to scroll downwards through the screen or menu
options or to reduce the volume.
Increases the brightness of the display and button
backlighting, or scroll along text that is longer than 20
characters.
Reduces the brightness of the display and button
backlighting, or scroll along text messages that are
longer than 20 characters.
Enables registration and deregistration of the cab
radio.
One touch communication buttons
Sends the ‘standing at signal’ operational text
message.
Used to acknowledge an incoming railway- emergency
group call (stops the ‘STOP’ message flashing).
To make a call to the signaller.
To make a railway-emergency group call.
To make an urgent point-to-point call to the signaller.
Table 2 – Cab radio buttons and what they do
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