GF82.95-P-3001LEU Selecting Telephone Antenna, Function

GF82.95-P-3001LEU Selecting Telephone Antenna, Function
- with CODE (359) TELE AID emergency call system

Function requirements
^ Status circuit 30 or "Circuit 15R ON"
^ Emergency call system authorized and operating properly
^ Defective GPS antenna (A2/49a2), model 216, or GPS and telephone antenna (A2/49), model 221, or poor reception

The emergency call antenna (A2/52) is integrated in the GPS antenna in model 216.

General
Normally the mobile phone signals or data for the following vehicle-related services are transmitted and received by the communication module integrated into the emergency call system control unit (N123/4), model 216, or the GPS and telephone roof antenna, model 221:
- Authorization (provisioning)
- Emergency call (E-Call) manual or automatic, including police emergency call number "911"
- MB-Info call
- Breakdown assistance (Roadside Assistance)
- Vehicle tracking
- Vehicle remote door unlock
- Vehicle remote door lock

In the event of a fault in the emergency call antenna, model 216, or the telephone and GPS roof antenna, model 221, the communication model integrated into the emergency call system control unit automatically transmits and receives via the left emergency call system backup antenna (A2/54) and the right emergency call system backup antenna (A2/55).

Function sequence
The emergency call system control unit monitors the emergency call antenna, model 216, or the telephone and GPS roof antenna, model 221, via a direct line.
The emergency call system control unit detects the failure (e.g. malfunction caused by rollover) or inadequate reception on the emergency call antenna, model 216, or the telephone and GPS roof antenna, model 221, and then automatically transmits or receives the mobile radio signals or data for the relevant vehicle-related services via the following route:
- Direct line
- Emergency call system antenna splitter (A2/25)
- Direct line
- Emergency call system left backup antenna
- Emergency call system right backup antenna