
- 16 -
mbos2a2 (06.09.2012)
Kompetent für Elektroniksysteme
mbos2a2 (06.09.2012)
- 17 -
Kompetent für Elektroniksysteme
Socket ST3 --> display
Socket ST4 --> handpiece
Socket ST9 --> gooseneck microphone
Socket ST11 --> hook and loudspeaker
Pin 1
hook switch
Pin 2
GND
Pin 3
AF output loudspeaker
Pin 4
GND
Connection Cable to PC
25pin at MBOS2a2
9pin COM at PC
12
GND 5
24
TXD 2
25
RXD 3