Vic-1 information

[JRMITTS]

So I'm trying to hook up the vic-1 system and came upon an issue.

The bendix connection coming out of the mx-7777 has terminal A as the positive.

The cable cx-13089 says it switches terminals so the mx-7777 end has A as the positive terminal and the AM-1780 end has the B terminal as the positive terminal.
The cable also says you can reverse the poles if you want.

So my question is do I use the cx-13089 cable as it is, or do I switch the connections on the AM-1780 end?

In other words is the power in on the AM-1780: terminal B = positive and terminal A = negative?

I afraid of hooking it up backwards and frying the AM-1780.

I've tried to find the manual TM 11-5830-340-30 and/or TM 11-5820-401-10-2
but they seem to be rather elusive.

I've also read through countless threads, and gotten some really good information, but nothing seemed to address my question.

Thanks

JRM

 

[jhooah]

Why do you think you need a suppressor in your system? Only Armored vehicles used these, and if your going for a simple intercom setup you won't be drawing enough power to worry about it. Voltage spikes in the larger generator/altenators that armor used is what the 7777 was designed for.
V/R W Winget

 

[jhooah]

Fair radio sells the cable ($14) to interface between them: https://www.fairradio.com/_uploaded/1585.jpg

https://www.fairradio.com/catalog.p...:5025:5026:5027:5028:5029:5030:5031:5033:5034

V/R WAW

 

[wsucougarx]

Unless the CX-13089 was manipulated by someone, I just hooked it straight up without any mods. You really don't need a MX-7777 in the system because we don't have the huge spikes related to armor. However, I have them in all my VIC/VRC-12 vehicles for insurance

 

[JRMITTS]

Thank you Gentlemen. I'll just hook it together and see what happens.

I did get the cx-13089 from Fair Radio sales. Phil there was very helpful. It's just that when I received the cable and noticed that card that said it was reversed, I began to wonder.

After reading numerous threads, it seems lots of members use the MX-7777 for a margin of safety, rather than a necessity. I considered just hooking the AM-1780 directly to the battery with a fuse, but decided to go this route instead.

Thanks again for the advice.