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GSM-R user procedures (cab radio Version 2)

6 Entering service

6.1 Preparing the cab radio

Before a train enters service, you must check the operational status of any cab radio that

is to be used during the journey. This is normally the responsibility of the person who is

carrying out train-preparation duties.

6.1.1 Traction unit power on

Whenever the traction unit is cut in the cab radio will also power up and automatically test

itself. The start and end of the self-test is displayed on the cab radio. The display also

shows you the progress of the test. If there is more than one display unit associated with

the cab radio, for example, on a locomotive, the status of the self-test is displayed on both.

The cab radio initialisation process consists of a number of stages. The commencement

of each stage will cause a change of state on the display:

Each stage of the process will be shown with an appropriate message such as Initialising,

Powering up and Testing. During this process software version 2 is identified by NR 3.1

showing on the display.

Test OK

To make a call, while the ‘Test OK’ message is displayed, you will need to switch on the

cab radio display (see section 6.1.2).

 If the cab radio fails the self-test refer to section 9.2.

6.1.2 Switching on the cab radio display unit (using your driver’s key)

Once you have cut the traction unit in and the cab radio has completed its automatic self-

test, the display will switch off. Before the cab radio can be used operationally you must

switch on the display by simply inserting your driver’s key and moving the master switch

away from the ‘off’ position.

When switching on the cab radio’s display, it will light up momentarily.

When the traction unit is powered on, the cab

radio power-up sequence begins and the display

and keypad backlighting will be lit up

momentarily.

When the self-test has finished the message

‘Test OK’ is displayed. The message will remain

in the display for 15 minutes, after which the cab

radio will go into standby mode causing the

display to go blank.

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Siemens NRN 67 Series Especificaciones Pagina 29