GF82.70-P-2007CEJ Telephone Switch-on/Switch-Off Characteristics, Function

GF82.70-P-2007CEJ Telephone Switch-on/switch-off Characteristics, Function
- with CODE (527) COMAND APS with single DVD drive (with navigation)

Function requirements
^ Status "Circuit 30 ON" or "Circuit 15R ON"
^ Mobile phone system operating error-free
^ One mobile phone network is available in sufficient strength and quality
^ Japan electrical connector adapter cable (X39/46) connected to communications control unit (N123/6)
^ Compatible mobile phone connected to the Japan electrical connector adapter cable or Bluetooth-compatible mobile phone in the vehicle and authorized on the COMAND controller unit (A40/3)

The Japan electrical connector adapter cable is used to connect the various mobile phones to the communications control unit.

A Bluetooth-compatible mobile phone can only be operated in the vehicle if a mobile phone is not connected to the Japan electrical connector adapter cable. Additionally, the Bluetooth-capable mobile phone must be authorized at the COMAND controller unit and support Hands Free Profile (HFP) 1.0 or 1.5.

More information is available at:
- www.mercedes-benz-mobile.com

The system is described using a mobile phone connected to the Japan electrical connector adapter cable as an example. Deviations from this are indicated with the symbol.

General
For status "circuit 30 ON" the COMAND controller unit has to be manually switched on so that the mobile phone is switched on via a wake-up pulse from the COMAND controller unit.
For status "circuit 15R ON" the COMAND controller unit is automatically switched on; this in turn also automatically switches on the mobile phone by means of a wake-up pulse from the COMAND controller unit.
The mobile phone can be switched off at status "circuit 30 ON" by manually switching off the COMAND controller unit, which sends a corresponding signal to the mobile phone, or following expiration of the run-on time as configured on the mobile phone.
The mobile phone is switched off automatically at status "circuit 15R OFF" by the COMAND controller unit, which sends a corresponding signal to the mobile phone, or following expiration of the run-on time as configured on the mobile phone.

A mobile phone operated with Bluetooth can be switched on and off only with the buttons on the mobile phone itself.
The switch-on and switch-off function consists of the following two subfunctions:
^ Switch on function sequence
^ Switch off function sequence

Function sequence for switch on
The switch on signal (wake-up pulse) is forwarded by the COMAND controller unit as follows to the mobile phone:
- Direct line
- Communications control unit
- Japan electrical connector adapter cable

The mobile phone is then switched on and supplied with power. After the mobile phone is switched on, a lock code inquiry is made if the mobile phone is so configured and transmits this status. The lock code inquiry is forwarded by the COMAND controller unit to the Audio/COMAND display (A40/8) as well as via the interior CAN (CAN B) to the instrument cluster (A1).
Depending on the request concerned the lock-code must be entered by one of the following options:
- Buttons on the mobile phone
- Telephone buttons on the COMAND controller unit
- Audio/COMAND control panel (A40/9)

The control signals of the mobile phone buttons are forwarded via the following route to the COMAND controller unit:
- Japan electrical connector adapter cable
- Communications control unit
- Direct line

The control signals from the Audio/COMAND control panel are forwarded via the telematics CAN (CAN A) to the COMAND controller unit. The control signals from the COMAND controller unit telephone buttons are processed internally. After entering the lock-code, the reception status is received by the COMAND controller unit in the following way over the multifunction antenna (A28/11):
- Japan electrical connector adapter cable
- Communications control unit
- Direct line

The receive status is shown by the COMAND controller unit via a low voltage differential signal (LVDS) line on the Audio/COMAND display.

A mobile phone operated with Bluetooth processes the switch-on signal internally in the mobile phone. The lock code inquiry is only shown on the display of the mobile phone, if configured on the mobile phone and if the mobile phone transmits this status. The lock-code can only be entered using the mobile phone buttons. The reception status is received by the mobile phone's antenna. The display of the lock-code and the reception status as well as the signals of the mobile phone buttons are processed internally in the mobile phone.

Switch off function sequence
The switch-off signal is forwarded by the COMAND controller unit to the mobile phone via the following route:
- Direct line
- Communications control unit
- Japan electrical connector adapter cable

The mobile phone is then switched off and power supply interrupted. Expiration of the run-on time configured in the mobile phone takes place internally in the mobile phone.

A mobile phone operated with Bluetooth processes the switch-off signal internally in the mobile phone. If the rechargeable battery of the mobile phone is empty, the mobile phone is also switched off. This process also runs internally in the mobile phone.