It depends a bit on which logic board you have, but pin 8 on the accessory connector is either an open-collector transistor which requires an external pull-up resistor, or a logic line with a 4.7k resistor to +5V in the radio.
You then have to program the radio for COR on pin 8, and choose whether you want it to be active high or active low. You would set the CAT controller to match the sense of the COR line. The COR line just indicates a carrier; it does not care if the proper PL/DPL code accompanies that carrier. On some radios, you can choose that option in the RSS. On some radios, you can program other accessory pins for the COR signal; it depends on the logic board. In either case, I'd recommend you add a 4.7k pull-up resistor on the COR pin either inside the radio or inside the CAT controller. My CAT200 controllers have provisions for just such a pull-up; maybe the 1000 does as well. Without knowing how you're wiring the two together, I can't tell you if you've done it in a way that will work or not. Bob M. ====== --- "Tony L." <[EMAIL PROTECTED]> wrote: > We're attempting to set up a repeater using 16 > channel GM300's and an > external controller (a CAT 1000). > > We've done this before twice, but seem to be stumped > this time because > we can't get either the receiver radio or link radio > to produce the > right voltage swing the controller is looking for in > connection with > COR. We've tried 3 radios but none will produce the > necessary voltage > swing. > > What have we missed? Programming or wiring issue? ____________________________________________________________________________________ The fish are biting. Get more visitors on your site using Yahoo! Search Marketing. http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php
