3363784 - E3570 INTEGRATED RADIO PHONE - Functional description

Functional description

The integrated radio-telephone-navigator P20 is supplied directly (7 of connector A) by the battery via the line of fuse F39 of the unit under the dashboard B2 . Pin 4 of connector A receives a supply from the INT line protected by fuse 49 of control unit Pins 1 and 3 of connector A receive the CAN line with which the display P20 is connected to the Body Computer M1 and the other nodes of the system. Pin 8 of connector A is earthed. The GSM aerial P25 is connected to the telephone function via an appropriate coaxial cable different from that used for the radio and that used for the navigation function (GPS). Connector B of P20 is the source of the cables carrying signals to the loudspeakers used for the hands-free function  See E3510  RADIO . Pins 9 and 18 of connector D of P20 are connected to the microphone P26 ; pin 12 of connector D is earthed. The integrated radio-telephone-navigator P20 is not connected to the radio controls on the steering wheel: the connection is via the clock spring D47 , which is a node of the CAN network.  See E1050  CAN CONNECTION LINES The external telephone receiver P27 is connected to connector F of P20 at pins 6, 7, 8, 16 and 17 and is supplied via the line for fuse F39 of the junction unit the dashboard B2 .