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