GF82.25-P-4102-02TT Special Vehicle Multifunction Control Module, Task

GF82.25-P-4102-02TT Special Vehicle Multifunction Control Module, Task
- with CODE (450) Taxi version
- with CODE (934) Taxi emergency alarm unit
- with CODE (970) police emergency vehicles

The special vehicle multifunction control module (SVMCM [MSS]) (N26/9) is used to monitor and control special functions for special vehicles.
In addition to its internal functions the special vehicle multifunction control unit (SVMCU [MSS]) (N26/9) also serves as an interface between the CAN interior and the control units which do not have a separate CAN connection

The control unit can distinguish between two basic status conditions
^ Taxi
^ Special-purpose vehicles:
- government vehicles
- Police and emergency vehicles
- On request by the customer, private vehicles are also available with a panic alarm

Depending upon the control unit coding and equipment the special vehicle multifunction control unit (SVMCU [MSS[) (N26/9) assumes the following tasks:
^ voltage supply to service radio (A49)
^ electrical voltage supply to taximeter control unit (A67n1) or to conventional taximeter (A50)
^ maintain data communications with the taximeter control unit (A67n1) via the RS485 bus or with the conventional taximeter (A50) via four wires.
^ electrical voltage supply to the interior socket (X58/1)
^ voltage supply of connector for glove compartment (X29/1)
^ control of the taxi emergency alarm system
^ control of the roof sign lamp (E14/4)
^ actuation of ashtray illumination at left (E9/8) and right rear (E9/9)
^ control of subfunctions of the special signal system
^ control of the panic-mode alarm function (private vehicles) c
^ control and regulation of heated windshield (Special-duty vehicles)

Networking
For data interchange the special vehicle multifunction control unit (SVMCU [MSS]) (N26/9) is connected to the CAN interior.

The control unit coding is done using the Star Diagnosis via the electronic ignition switch control unit (N73). Exception: The heated windshield function is directly coded in the special vehicle multifunction control unit (SVMCU [MSS]) (N26/9).

Taxis
There are two types of alarm available in the taxi emergency alarm system (Code 934):
^ Silent Alarm (Stage 1)
^ Active Alarm (Stage 2)
The individual types of alarm are actuated by pressing the emergency alarm system activate button (S62/6) or the taxi emergency alarm two-way radio remote activation transmitter (A8/4). Pressing the emergency alarm system cancel button (S62/5) switches off the taxi emergency alarm system.