GF54.21-P-4510LE RCP [HBF] Control Unit, Component Description

GF54.21-P-4510LE RCP [HBF] Control Unit, Component Description
- MODEL 221
- with CODE (406) Rear multicontour seat
as of model year 2009 /YoM 08

- MODEL 221 up to 31.5.09
- with CODE (864) Rear entertainment system
as of model year 2009 /YoM 08

Shown up to 31.5.09






A40/4 DVD player (with code (864) Rear entertainment system)
N72/2 RCP [HBF] control unit

Location
The RCP [HBF] control unit is located in the armrest between the rear seats.

Shown as of 1.6.09






A34/13 Rear handset holder (with code (856) 2nd handset in rear armrest)
A40/4 DVD player (with code (864) Rear entertainment system)
N72/2 RCP [HBF] control unit

Location
The RCP [HBF] control unit is located in the armrest between the rear seats.






The RCP [HBF] control unit (N72/2) has the following controls:

With code (864) Rear entertainment system up to 31.5.09:
- Right screen button (N72/2s4)
- Left screen button (N72/2s5)
- Right "Back" button (N72/2s6)
- Left "Back" button (N72/2s7)
- Rear rotary pushbutton (N72/2s8)
-
With code (406) Rear multicontour seats:
- Left seat selection button (N72/2s12)
- Right seat selection button (N72/2s13)
- Backrest side seat contour button (N72/2s14)
- Lumbar support seat contour button (N72/2s15)
- Lumbar support height adjustment button (N72/2s16)
- Gentle massage function button (N72/2s17)
- Firm massage function button (N72/2s18)

Task
The RCP [HBF] control unit allows the rear passengers to control comfort-relevant functions in the rear of the vehicle and has the following tasks:
- Receive signals
- Transmitting signals

Receive signals
The RCP [HBF] control unit receives signals via the following connection:
- Telematics CAN (CAN A)

Telematics CAN
The RCP [HBF] control unit communicates with the following components:
- COMAND controller unit (A40/3)
- Additionally with code (864) Rear entertainment system:
- DVD player - Left rear display (A40/5)
- Right rear display (A40/6)

The signals are read in via the telematics CAN. The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).

Transmitting signals
The RCP [HBF] control unit transmits signals via the following connection:
- Telematics CAN

Telematics CAN
The signals are sent by the RCP [HBF] control unit via the telematics CAN. The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).

Operation via rear rotary pushbutton up to 31.5.09

Schematic representation






DD Press down vertically
DL Rotate counterclockwise
DR Rotate clockwise
L Push left
R Push right
V Push forward
Z Push backward

The rotary movement of the rear rotary pushbutton is picked up in two different spacing resolutions:
- 12 steps per revolution
- 32 steps per revolution

The low-resolution spacing (12 steps per revolution) is used for selecting menus.
The high-resolution spacing (32 steps per revolution) is used for selecting and moving within selection lists.
The rotary movement for selecting within a list is limited at the end of the list by a variable end stop, i.e. when the bottom of a selection list is reached, the rear rotary pushbutton can no longer be turned and vice versa.






Variants
- Multicontour seat (with code (406) Rear multicontour seats)
- Rear entertainment system (with code (864) Rear entertainment system)
- Multicontour seat and rear entertainment system (with code (406) Rear multicontour seats and code (864) Rear entertainment system)