Looking for the Relm Micro-Com SM series radio mic pinout.
Trying to help a vol fire guy with a bad mic - I'd rather throw the radio away where it belongs (in the dumpster)
but I guess that's not an option......
I think I have it close, but I would rather verify with someone who knows for sure......
Need mic pinout for Relm SM series
- n_zero_ndp
- Posts: 389
- Joined: Sun Feb 24, 2002 8:10 pm
- Location: Where P25 Trunking is KING
-
- Posts: 83
- Joined: Mon Apr 05, 2004 12:36 pm
- Location: Melbourne, FL
Re: Need mic pinout for Relm SM series
The microphone pin outs for the older SM-series mobiles are as follows:
Pin 1 = RX earpiece audio (not connected)
Pin 2 = Ground
Pin 3 = PTT (+5vdc in RX, 0vdc in TX)
Pin 4 = Microphone Audio (low impedance)
Pin 5 = Hang up (+5vdc off hook, 0vdc on hook)
Pin 6 = Switched +13vdc (Not connected)
I hope that helps.
Regards,
Bill
Pin 1 = RX earpiece audio (not connected)
Pin 2 = Ground
Pin 3 = PTT (+5vdc in RX, 0vdc in TX)
Pin 4 = Microphone Audio (low impedance)
Pin 5 = Hang up (+5vdc off hook, 0vdc on hook)
Pin 6 = Switched +13vdc (Not connected)
I hope that helps.
Regards,
Bill
- n_zero_ndp
- Posts: 389
- Joined: Sun Feb 24, 2002 8:10 pm
- Location: Where P25 Trunking is KING
Re: Need mic pinout for Relm SM series
That's what I was looking for...
Many thanks!
Many thanks!