Good Afternoon everyone... I have two Motorola Radius M120 mobile radios, each listing a model number of M44GMC20A3AA. As far as I can tell (from looking at the front and what's in RSS) these are two channel units, have the 40W P.A. and include the 16-pin accessory connector.
These units are going to be interfaced to a repeater controller for use as a portable repeater, but I'm having a heck of a time finding the correct pinout of the accessory connector. All of the diagrams I've found so far refer to a "8-channel" or "16-channel" Radius and while those diagrams get me close, some parts are missing. For example, I'm finding COR/COS on the first top and bottom pin on the far right side (I think that's 15 and 16), but no diagram anywhere lists COS at that point. I have checked to see if there is any customization option from within the RSS (like the GM300's) and there isn't. Right now I have the following working: TX AUDIO, PTT, TX GND, RX GND I'm trying to find/confirm: RX AUDIO, COR/COS Can anyone help? Justin
