R 350 4MATIC (251.165) V6-3.5L (272.967) (2006)
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Emergency Contact Button: Description and Operation
GF82.95-P-3212RTU Emergency Call System Control Unit, Component Description
GF82.95-P-3212RTU Emergency Call System Control Unit, Component Description
- with CODE (359) TELE AID emergency call system
Component Identification
Location
The emergency call system control unit (N123/4) is located on a bracket below the rear bench seat.
The individual services must be authorized.
Task
The emergency call system control unit is responsible for the following functions:
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Integrated telephone module for emergency call, MB-Info call, roadside assistance call, tracking and remote door unlock
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Independent position sensing
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Acquiring and storing vehicle-specific data (e.g. circuit status)
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Actuation of TELE AID antenna (A2/93a4) or TELE AID backup antenna (A2/50)
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Reading in the voice signal over the hands-free system microphone group (A67b1)
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Voice output over the center cockpit center speaker (centerfill) (H4/27)
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Reading in the crash data from the restrain system control unit (N2/7) over a discreet line as well as redundant data over the Control Area Network
bus, class D (diagnosis)
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Unlocking the vehicle in an emergency
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Reading in SOS pushbutton (S93/3) and MB info button group and tele diagnosis (S93/6) via two separate and discrete lines
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Reading in satellite data over the GPS antenna (A2/93a6)
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Generating and keeping an SMS ready
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Muting other audio signals (e.g. radio navigation, telephone)
Design
The emergency call system control unit is designed primarily as follows:
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Integrated telephone module
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Integrated navigation module
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Memory for vehicle-specific data
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Screened metal housing
Function
The emergency call system control unit (N123/4) consists of two modules,
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the navigation module and
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the communication module.
The navigation module allows precise determination of the vehicle position. The communication module is used for handling the emergency call and
