GF82.95-P-2024CEU Manual or Automatic Emergency Call, Function

GF82.95-P-2024CEU Manual Or Automatic Emergency Call, Function
- with CODE (359) TELE AID emergency call system

Function requirements, general
^ Circuit 30 for manual emergency call (E-call)
^ Circuit 15R for automatic emergency call (E-call)
^ Emergency call system authorized and operating properly
^ The vehicle-related manual or automatic emergency call (E-Call), including police emergency number "911", is authorized separately
^ An emergency call system control unit (N123/4) communication module authorized for the corresponding vehicle-related service is configured ex-factory with the telephone number of the corresponding service provider
^ The customer is registered and authorized at the service center
^ One mobile phone network is available in sufficient strength and quality
^ Global Positioning System (GPS) present
^ Communication between the emergency call system control unit and the supplemental restraint system control unit (N2/10) are operating error-free
^ Production mode deactivated (accomplished following final factory inspection)

Improper actuation of a manual or automatic emergency call is punishable by law.

General
In the event that a driver is confronted with an emergency situation in a remote location, a service center employee can obtain an overview of the situation inside the vehicle with the aid of the data received from the emergency call system control unit (voice connection and SMS) and initiate the action required for help. An emergency call be triggered manually or automatically. The purposes of these emergencies calls are as follows:
- Automatic alerting of the rescue services after an accident
- Alerting of rescue workings at the press of a button (own emergency situation, observed accident)
- Reduction of rescue times through fast emergency notification with details on exact location involved

The emergency call function consists of the following subfunctions:
^ Function sequence for initiating manual emergency call
^ Function sequence for initiating automatic emergency call
^ Function sequence for transmission of emergency call data and communication with the service center

Function requirements for initiating manual emergency call
^ Circuit 30
^ A higher-priority vehicle-related service is not active

Function sequence for initiating manual emergency call
The emergency call system button (S93/3) is pressed for t > 0.5 s. The emergency call system control unit directly reads in the emergency call system button via a direct line.

Function requirements for initiating automatic emergency call
^ Circuit 15R

Function sequence for initiating automatic emergency call
The emergency call system control unit receives the crash signal from the supplemental restraint system control unit via a direct line. Simultaneously, the emergency call system control unit receives the crash signal (redundant) and the crash level from the supplemental restraint system control unit via the following route:
- Chassis CAN (CAN-E)
- Front SAM control unit with fuse and relay module (/)N10/1
- Diagnostic CAN (CAN D)

Function sequence for transmission of emergency call data and communication with the service center
After a manual or automatic emergency call has been triggered, the emergency call system control unit completes a voice connection to the service center.

After the service center replies with a special tone, the emergency call system control unit automatically sends an SMS with the following data to the service center over the integrated communication module:
- Vehicle position, direction of ravel and history
- Vehicle data and crash analysis (accident severity)

The communication module integrated into the emergency call system control unit transmits and receives the mobile phone signals or data in the following way:
- Direct line
- Frequency switchover control unit (N96), with code (389) Mobile phone preinstallation with universal interface, USA/ Canada, and direct line
- Multifunction antenna (A28/11)

If connection to the service center cannot be established when an automatic emergency call is triggered, a voice connection is automatically set up using the emergency number "911" and it is then necessary to communicate the listed data verbally.

If a manual or automatic emergency call is active, this is indicated by one of the two red light-emitting diodes (LED) integrated into the emergency call system button flashing. This is also indicated in the instrument cluster (A1) and on the Audio/COMAND display (A40/8).

In the event of a manual or automatic emergency call, other vehicle-related services (e.g. MB-Info call) and, on vehicles with code (389) Mobile phone preinstallation with universal interface, USA/Canada, any active mobile phone connections are interrupted.

In the event of a multifunction antenna malfunction (e.g. defective because of rollover) the emergency call system control unit automatically uses the emergency call system antenna (A2/52) to transmit mobile phone signals or data.