Interface Specification - Tait TM8235 Service Manual

30.3

Interface Specification

Table 30.5 Handset microphone connector—pins and signals
Pin
1
2
3
4
5
6
7
8
Figure 30.2 Handset to radio interface
558 TMAA10-02 Handset
The following table and diagram summarizes the signals used for the handset
on the radio's microphone connector and shows the interface between the
handset and the radio.
Handset PCB
Signal
Connector
RX_AUD 8
— —
— —
PTT 2
MIC 9
GND 10
— —
CH_GPIO1 3
.
Colour Description
brown receive audio to handset
— not connected
— not connected
white PTT and hookswitch
yellow audio from the handset to dynamic-mic
support board
green analogue ground
— not connected
blue programmable line controlling private mode
© Tait Electronics Limited June 2006
TM8100/TM8200 Service Manual