Frequency switchover control unit, component description - GF82.62-P-4204SXU
MODEL 221.0/1 as of 1.1.06 with CODE (494) USA version up to Model Year 8
MODEL 221.0/1 as of 1.1.06 with CODE (387) Preinstallation for telephone "Handy", UPCI system, USA/Canada up to Model Year 8
MODEL 221.0/1 with CODE (389) Mobile phone preinstallation with universal interface, USA/Canada up to Model Year 8
MODEL 216.3 with CODE (494) USA version up to Model Year 8
Illustrated on model 221
Location
The frequency switchover control unit is located in the left rear of the luggage compartment.
Task
In the event of a Telematic Alarm Identification on Demand (emergency call system) (TELE AID) emergency call, the frequency switchover control unit switches the telephone signals from the telephone and GPS roof antenna (A2/49) (model 221) or from the telephone and GPS antenna (A2/49) (model 216) through to the emergency call system control unit (N123/4) and vice versa.
During a telephone call, the frequency switchover control unit switches the telephone signals from the telephone and GPS roof antenna (model 221) or from the telephone and GPS antenna (model 216) through to the Universal Portable CTEL Interface (UPCI [UHI]) control unit (N123/1) and vice versa.