Microphone Connector - Tait TM9100 Service Manual

2.3.7

Microphone Connector

The microphone connector of the control head is an RJ45 socket.
When the control head is connected to the control-head connector of the
radio body using the loom provided, the microphone connector uses the
following eight control-head connector signals:
Table 2.6 Microphone connector – pins and signals
Pinout Pin
B
I
front view
a. Can be switched or unswitched. For more information refer to
TM9100 Service Manual
© Tait Electronics Limited August 2005
Signal name Description
1 MIC_RX_AUD Receive audio output.
a
2 +13V8 Power supply output. Switched off
when radio body is switched off.
3 MIC_TXD Asynchronous serial port -
Transmit data.
4 MIC_PTT PTT input from microphone. Also carries
hookswitch signal.
5 MIC_AUD Fist microphone audio input.
6 AGND Analog ground.
7 MIC_RXD Asynchronous serial port - Receive data. 3.3V CMOS
8 MIC_GPIO1 General purpose digital input/output.
"Connector Power Supply Options" on page
Signal type
Analog
Power
3.3V CMOS
Digital
Analog
Analog ground
Open collector out
3.3V CMOS in
85.
Description 41