Bosch Pinouts & Schematic Cable

Pin

Name

Function

in/out

1

 VIN

Input voltage - supply pin

in

2

 C-BUS Bi-directional serial control bus in/out

3

I-BUS

Data input (internal 100k pullup)

in

4

 PA_BIAS_ON Trigger signal synchronous withr TX burst  

5

 V-BATT Connected directly to the MS battery  

6

 HF_ENABLE HF enable output  

7

 IGNITION Sensing ignition (in car kit)  

8

D-BUS

Data output

 out

9

CHG-ID

Charger ID - detects type of charger

  

10

 GND Ground-this pin is checked by HF  

11

 A-UL Analog input to phone  

12

 AGND Analog ground  

13

 A-DL Analog output from phone  

14

AGND

Analog ground

  

15

 EQUIP-ID Pulled low by HF, internal pullup 100k  

16

 GND Ground  

Pinouts & Schematic Cable by Misiek