I have a 2nd user amp on SOR from a colleague provided I can get it working, the only problem is that there are 3 screw terminals I can't identify.

Inputs & outputs are obvious, the 3 connections I'm struggling with are labelled as follows:

CON
B+
V+ .... with REM opposite

Presumably they must be for +12v, Gnd & Pwr-On and they are all of equal size.

The amp is an old(ish) Jet Sound JS-4080P 50Wx4

I have my hunches but the terminology used on the screen printed legend seems somewhat illogical to me, can anyone help please?

Cheers,
Rue