16 15 14 13 12 11 10 9 
u--u--u--u--u--u--u--u 
n--n--n--n--n--n--n--n 
8 7 6 5 4 3 2 1 

1,9 ... GND digital ground 
2 ..... MIC/JCONN external audio input, multiplexed 
with junction box connection 
control signal 
3 ..... AGND analog ground 
4 ..... TDA transmitted DBUS data to the accessories 
5...... M2BUS Serial data and control between the handportable 
and accessories 
6 ..... HOOK/RXD2 HOOK indication. the phone has a 100kV/A 
pull up resistor 
7 ..... PHFS/TXD2 handstree device power on/off, data to 
flash programming device 
8,16 .. VCHAR battery charging voltage 
10 ..... EAR/HFPWR external audio output to accessories or 
handstree speaker 
11 ..... DSYNC DBUS data bit sync clock 
12 ..... RDA DBUS received data from the accessories 
13 ..... BENA Power supply to headset adapter 
14 ..... VF Programming voltage for FLASH 
15 ..... DCLK DBUS data clock 


Battery Connector (on the phone) 

|--|--|--| 
1 2 3 4 

1 ...... GND ground (-) 
2 ...... TBAT battery temperature 
3 ...... BTYPE -"- type 
4 ...... VBATT -"- battery voltage (+)