Fiber-optic conductor interface, function - GF82.70-P-3106-04A

Models 215, 220 with code 317 or code 318 or code 494a 

The portable CTEL D2B interface (A59/1)  is switched on or off via a discrete "Wake-up" line. It responds to the negative edge of the pulse (in rest state the level is at "high") and the duration of the "Wake-up" signal.

Generally, after switching off the D2B the portable CTEL D2B interface (A59/1)  remains active for a further 10 min, insofar as a portable CTEL is inserted into the holder and active.

The COMAND operating, display and control module (A40/3n1)  sends control data over the D2B to the portable CTEL D2B interface (A59/1)  . Once there the incoming control data is forwarded to the portable CTEL with the aid of discrete databus lines.

The portable CTEL D2B interface (A59/1  ) switches the portable CTEL on or off and transmits the functions to be executed (e.g. dial subscriber's number).

The other way around the portable CTEL data (caller's voice, control data, telephone numbers) is transmitted by the portable CTEL D2B interface (A59/1)  in an appropriate D2B format and forwarded for further processing to the COMAND operating, display and control module (A40/3n1)  .

Charging up the portable CTEL battery 

The portable CTEL's battery is charged up until the portable CTEL D2B interface (A59/1)  is activated over the D2B (regardless of whether the portable CTEL is switched on or off).