Looking for the pinout for a Motorola HMN3031A with the RJ45 connector.
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motolora desk mic pinout
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MO_TRASHER
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Dunno if the HMN3000B is the same or what, but, if you have a maxtrac or GM series style radio, the pinout is the same.
pin 3 is the "hook"
pin 4 is GND
pin 5 is Mic Audio
Pin 6 is PTT
pin 3 is the "hook"
pin 4 is GND
pin 5 is Mic Audio
Pin 6 is PTT
The 'Trasher
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N3UHD
PCIA #38104
...If it ain't broke, don't fix it....
"Motorola hasn't built a radio so well that it can't be broken"
Check Out: http://www.lowerytech.net/forum
Join the fun!
Someday this'll be a REAL Site!.......
http://www.busrad.com
Re: motolora desk mic pinout
Does the desk mic have a built in mic amp that require use of the 5v+ pin?
Re: motolora desk mic pinout
All the Motorola desk mics have a builtin preamp, but they don't require use of the +5V pin. Motorola mobile radios are designed to use a 'carbon mic standard' where the mic audio line has a positive bias voltage on it to supply the desk mic preamp as well as route the mic audio to the radio.