I'm looking for info on the 25-pin connector on ICOM radios. I have a F5400D and I see the pins can be reassigned/programmed in the CPS, but it's unclear how to actually utilize the pins.
For example, if I assign pin X to be an input function for the dimmer, what do I actually apply to that pin to activate the function? +12 VDC? Ground?
I found this thread which seems to be on the exact same topic, but it's still unclear to me. I don't understand the coffee bean references which may be part of my lack of comprehension. Paging @jeatock if you're still around
forums.radioreference.com
For example, if I assign pin X to be an input function for the dimmer, what do I actually apply to that pin to activate the function? +12 VDC? Ground?
I found this thread which seems to be on the exact same topic, but it's still unclear to me. I don't understand the coffee bean references which may be part of my lack of comprehension. Paging @jeatock if you're still around

Icom D-sub 25pin
I have a F5061 with a handy 25-pin dsub connector on the back. I know Icom sells a GPS unit that plugs into it, but I cannot find any documentation on the pinout for that connector. I think one of the pins is a dimmer and I would like to use that. If anyone has used this connector or can point...