GF82.85-P-3134RIJ COMAND Operating, Display and Controller Unit, Component Description

GF82.85-P-3134RIJ COMAND Operating, Display And Controller Unit, Component Description
- with CODE (527) COMAND APS with single DVD drive (with navigation)

Component Identification:

Location
The COMAND operating, display and controller unit is installed in the center console.

Task
The COMAND controller unit fulfills the following tasks:
^ Reads in the controls and input signals
^ Evaluation of input factors
^ Actuates output media

Reads in the controls and input signals
The input factors are read in via the following connections:
^ Direct line
^ Controller Area Network (bus/CAN bus)
^ Media Oriented System Transport (MOST)

Direct line
The COMAND controller unit has the following direct connections:
- Circuit 30
- Circuit 31
- Wake-up for MOST (bidirectional)
- Bluetooth antenna (A2/91)
- Left antenna amplifier module (A2/64) (AM/FM1/VICS)
- Right antenna amplifier module (A2/65) (FM2)
- Electronic Toll Collection control unit (ETC) (A50/3) (Dealer Option)
- VICS antenna (A2/96) (Dealer Option)
- GPS antenna (A2/23)
- TV input (digital), with code (865) TV tuner
- Hands-free microphone system (B25) (2 microphones for hands-free telephone and voice control)
- Communication control unit (N123/6)
- AUX-Audio input (access in glove compartment), except code (518) Media interface

Controller Area Network (bus/CAN bus)
- The COMAND controller unit is a subscriber on the interior CAN

MOST
Control and audio signals from the following control units:
- Amplifier for sound system (N40/3), with code (810) Sound system
- Media interface control unit (N125/1), with code (518) Media interface
- TV digital tuner (A90/3), with code (865) TV tuner

Evaluation of input factors
The input values are processed in the COMAND controller unit.

Actuates output media
The following direct output signals are possible:
- Audio OUT (speakers), except code (810) Sound system
- Switching voltage for communications control unit (12 V)
- Switching voltage for Electronic Toll Collection control unit (ETC) (12 V) (dealer option)
- Switching voltage for VICS antenna (5 V) (dealer option)

Component Identification:

Design
The COMAND controller unit consists of the following components:
- Control panels for controlling the audio, navigation and telematics functions
- DVD drive
- SD card slot
- Display

Additionally, the following components are integrated in the COMAND controller unit:
- Central computer
- Hard disk
- Navigation processor
- Audio amplifier, except code (810) Sound system
- Voice control