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Telephone interface, function - GF82.70-P-3107-02D

The fixed installation CTEL D2B interface (A59)  is switched on or off via a discrete "Wake-Up" line. It reacts to the falling impulse edge (at rest state level is "high") and the duration of the "Wake-Up" signal.

Incoming control data from D2B is directed to the CTEL transmitter/receiver (A35)  via the fixed installation CTEL D2B interface (A59)  with the aid of discrete data lines; then as requested by the radio (A2)  the fixed installation CTEL D2B interface (A59)  switches the CTEL transmitter/receiver (A35)  on or off and relays the functions to be carried out (e.g. dial number).

Inversely, the data (voice of caller, control data) of the CTEL transmitter/receiver (A35)  is converted into an appropriate D2B format by the portable CTEL D2B interface (A59)  and then directed to the radio (A2)  for further processing.

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