External Power Supply Control & Power Lamp Functions; Power Supply Voltage Display Function - Alinco DR-135T MkII Instruction Manual

3. Initial Installation
External power supply control & power lamp functions
Be sure the vehicle has a negative-ground, 12VDC electric system before installation. Connect the
provided DC cable directly to the battery as shown below to minimize any possible ignition noise.
Be sure the vehicle has a large capacity battery as the use of the transceiver may overload the
electric system of the vehicle.
If the ignition-key on/off feature is desired (optional feature), use the optional EDC-37 (For direct
connection to the circuit on the vehicle) or EDC-36 (for a Cigar-Plug connection) cable. Connect
one of the cables between the ACC terminal or a Cigar-Plug that operates with the vehicle ignition
or ACC switch on the vehicle and EXT POWER jack on the rear side of the unit. (Note: In many
cars, the cigar-lighter plug is always powered. If this is the case, you cannot use it for the ignition
key on/off function.) If this option is selected, the unit can be turned on/off either manually or
automatically in accordance with the ignition key position:
1.
When the ignition key is turned to ACC or ON (Start) position with the radio turned
off, the power switch illuminates. The illumination will be turned off when the igni-
tion key is turned to the off position. To turn on the unit, press the power switch
manually while it is illuminated (while ignition key is at ACC or ON position).
2.
When the ignition key is turned to ACC or ON position with the radio's power switch
on, the unit turns on automatically and the power switch will be lit. Turn the ignition
key to OFF position or manually turn the power switch off to shut down the radio.
The power consumption when using the additional cable is 5mA.
For operation without this option, use the power switch to turn the unit on/off.

Power supply voltage display function

After connecting the transceiver to the power supply, the supply voltage can be confirmed by
pressing the SQL key together with the FUNC key. The supply voltage to the transceiver is then
seen on the display.
The transceiver will return to its normal operation when the power is switched OFF.
The display immediately changes as the voltage supply changes.
It also displays voltage during transmission.
IMPORTANT: The range of the displayed voltage is only from 7V - 16VDC. Because the displayed value
is estimated, please use a voltmeter when a more precise reading is desired.
8
Ext. Power jack
DC cable
ACC terminal
Cigar-Plug connection
Battery