gf8295p3210mxv

SOS switch, component description

Type gf · topic 82.95 · version 0100 · 2005-06-09

Applies to: MODELS 240.1 as of 1.9.05 with CODE (494) USA version Rear SOS pushbutton switch

Where it sits

Function group 3 Body › 82 Electrical system, body › 82.95 Emergency call system — Series 240 (models 1**)

GF82.95-P-3210MXV

SOS switch, component description

26.4.05

MODELS 240.1 as of 1.9.05 with CODE (494) USA version
Rear SOS pushbutton switch

SOS switch, component description

P82.95-2625-06

N72/2s19 Rear SOS pushbutton switch

Location

The rear SOS pushbutton switch is integrated into the RCP [HBF] control unit (N72/2).

Task

Basically the rear SOS pushbutton switch has the following tasks:

Actuation of a manual Telematic Alarm Identification on Demand (emergency call system ) (TELE AID) emergency call

Visual feedback signal of the TELE AID operating condition in the event of a manual as well as automatic emergency call

Design

Basically the rear SOS pushbutton switch is designed as follows:

Integrated light emitting diodes for night illumination (circuit 58d) and for display of operating condition

Cap for protecting against unintentional actuation

A control resistor in parallel to the switch contact

Function

In the park position, an electrical current flows over the control resistor (parallel to the switch contact) in the rear SOS pushbutton switch. When current is flowing through the resistor, the emergency call system control unit (N123/4) knows that the voltage supply line and the ground line are functioning properly. When the rear SOS pushbutton switch is actuated, the control resistor is bridged by the switch contact. The rear SOS pushbutton switch is read in by the emergency call system control unit over a discreet line. When the rear SOS button is pressed, a manual emergency call is recognized by the emergency call system control unit and then transmitted.