OPT_SEL1 at side connector

[n3obl]

What does the OPT_SEL1 pin do at the side connector. I have a housing where the pin broke off removing the board out of the side connector.

Can the pin piece be replaced on the housing?

Frank

[Al]

You didn't say which series of radios you're talkinbg about, but if you are referring to the Waris series, opt sel 1 pulled low when an accessory is attached to the accy port tells the internal uP that the accy is installed: low = external, high = internal. Opt sel 2 is PTT active when low and an external accy is installed on the radio.
I don't know the answer to your second question.

[n3obl]

so much for fast typing... XTS2500 series radios.

Frank

[Al]

Not sure about the XTS series, but I'd guess that it's the same as the Waris line. If the external accy with your broken pin is a speaker-mic, the easiest way to repair may to be to purchase a replacement coilcord(assuming you have the part number).