Power Connector - Tait TM9100 Service Manual

2.3.2

Power Connector

The power connector is the interface for the primary 13.8V power source
and the external speaker. The primary power source can be the vehicle
battery or a mains-fed DC power supply. There are different power
connectors for the 50W/40W and 25W radios.
Important
Table 2.2 Power connector (radio) – pins and signals
Pinout Pin
1
50W/40W radio
2
rear view
3
25W radio
4
1 2 3 4
rear view
TM9100 Service Manual
© Tait Electronics Limited August 2005
The speaker load configuration is balanced; the speaker
output lines must not be connected to ground. Connecting
a speaker output line to ground will cause audio power
amplifier shutdown
Signal name Description
AGND Earth return for radio body power
source.
SPK– External speaker output. Balanced load
configuration.
SPK+ External speaker output. Balanced load
configuration.
13V8_BATT DC power input for radio body and
control head.
Signal type
Ground
Analog
Analog
Power
Description 37