Installing The Power Cable; Power Connector; Connecting The Power Cable - Tait TM81 Serie Guía Del Usario

Installing the power cable

One end of the power cable is connected to the vehicle
battery and the other end plugs into the radio's

power connector.

Power connector
The following table explains the pin allocations for the power
connectors on both 25W and 40W/50W radios.
25W radio
rear view
40W/50W radio
rear view
Battery supply voltage
This radio is designed to operate from a nominal 12V negative
ground supply and may draw up to 8A of current (25W radios)
or 15A of current (40W/50W radios). The radio will tolerate a
supply voltage range of 10.8V to 16.0V at the radio.
Caution:

Connecting the power cable

Caution:
Pin Signal name Description
1 AGND
2 SPK–
3 SPK+
4 13V8_BATT
In vehicles with a supply voltage greater than
16.0V, such as many trucks, it is essential to
provide a suitably rated DC to DC converter. This
will isolate the radio from excessive battery voltage
and provide the correct DC operating conditions.
Disconnecting the vehicle's battery may cause
problems with electronic equipment, such as
vehicle alarms, engine management systems and
in-car entertainment systems. Check that the
earth return for radio body
power source
external speaker output
external speaker output
DC power input for radio body
and control head
Radio installation 35