Notes on D2B ring - AH82.70-P-0001-03C

Determine actual configuration in vehicle on model 210.2 

• In this case the components in the D2B ring (connected components) are:
  • Radio (A2)
  • Voice control module (A35/11) (on vehicles with code 813)
  • CTEL interface (A34/4) (on vehicles with code 316 or 317) or TELE AID control module (A35/8)
• The information in the D2B ring travels only in one direction (arrows). The information enters the fiber optic cable modules M1 to M3 at the white insert (ws) and exits through the red insert (rt) at the next ring component.

  The D2B ring functions only as closed circuit.

  Fig 1: Identifying D2B Ring Components

  Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
• The voice control module (A35/1) and the CTEL interface (A34/4) with code 317 (cellular telephone) are located in the load compartment on the right, the TELE AID control module (A35/8) and the CTEL interface (A34/4) with code 316 are located below the left rear seat.
• In order to add components to the D2B ring, determine the actual configuration in the vehicle.
  Fig 2: Identifying Voice Control Module, CTEL Interface And TELE AID Control Module

  Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Actual configuration for vehicles with permanently installed telephone or TELE AID and voice control system 

Fig 3: Identifying Actual Configuration For Vehicles With Permanently Tele Aid And Voice Control System

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Actual configuration for vehicles with telephone or TELE AID and voice control system (code 813) 

• Print out actual configuration for corresponding vehicle and use as document for conversion.
  Fig 4: Identifying Configuration For Vehicles With Telephone Or Tele Aid And Voice Control System (Code 813)

  Courtesy of MERCEDES-BENZ OF NORTH AMERICA.