Radio DC power cable

[Cybul]

Hi.
I have a question about 10570-0705-A021 cable.



It has red wire which is +28V, black wire which is 0, and brown wire.
Red = Pin B
Black = Pin A
Brown = Pin C
Pin D is unused.

Where is the best place in Hmmwv to connect this cable? Red/Black can be connected directly to the battery, but where should the brown wire be connected?
I found information that on brown wire 14V should be supplied when the ignition is turned on, but I am not sure if this information is correct.

 

[KKroger]

Battery Box, it goes through the hole in the tunnel then in behind the Shunt there is a pass through. then Connect to the positive Buss and the Shunt Black to shunt Red to Positive Buss. the brown will need to go to the BACK battery positive terminal, and the 14V cable needs to be from the alternator to the battery.

 

[ke6rwj]

Battery Box, it goes through the hole in the tunnel then in behind the Shunt there is a pass through. then Connect to the positive Buss and the Shunt Black to shunt Red to Positive Buss. the brown will need to go to the BACK battery positive terminal, and the 14V cable needs to be from the alternator to the battery.

Be sure to check your connection points with a meter to ground to make sure you have 12 to 14v at that point.

 

[NDT]

Mil radios never need 12 volts.

 

[ke6rwj]

The topic discussed getting 14v in the cable. It was only regarding that...

 

[KKroger]

Mil radios never need 12 volts.

Lots of Military Radios are 12V... Older PRC-126/128/ Scope Shield, PRC-77 is 12V, LST-5 and the KY57s back in the day, there are plenty of others, perhaps not the VRC stuff but the power cable has 12V and 24V on it.