Are all Motorola mics interchangeable?

[DylanMadigan]

If it is a Motorola mic, will it work on any Motorola radio provided it has the same plug? or is there anything I have to check for first? I got some used CDMs and MCS2000s I'm looking to get mics for, and I wish to avoid making mistakes.

 

[EWC_BDN]

I've never had an issue with the mic working. Keypads mics are different between some models. I don't deal with enough keypad mics to know what works with what, but i just make sure to use what ever the recommend keypad mic is for each model.

 

[N4KVE]

I believe CDM's have 10 pins, & MCS's have 8 pins. But they do fit, & people use them, but I would not. They are cheap enough on the used market.

 

[DylanMadigan]

Thank you

 

[mmckenna]

I've used MCS-2000's mics on my CDM's for years without issues. Nicer mic that what comes standard with the CDM.

 

[N4KVE]

I've used MCS-2000's mics on my CDM's for years without issues. Nicer mic that what comes standard with the CDM.

That shouldn’t be a problem, as the MCS mike has 8 pins, the CDM socket takes 10 pin CDM mikes. My worry is inserting a 10 pin CDM mike in a 8 pin MCS radio. LOL.

 

[com501]

CDM mics are all 8 pin RJ45. The two extra pins are for special applications.

 

[K2NEC]

I interchange my mics all the time with no problems

 

[mmckenna]

The RJ-50 jacks on the CDM series radios have 10 pins. Pin 1 and 10 are used for speaker audio to the telephone style handset option. An RJ-45 8 pin connector on the MCS mics won't even make contact with those. The pins on the jacks are designed to swing out of the way when the smaller connectors are installed.

 

[SteveC0625]

Actually, the left and right outboard pins (Motorola labels them 9 and 10) are keypad row and keypad column lines for the AARMN4026 DTMF microphone. The eight pins between 9 and 10 are labeled the same 1 through 8 as several other mics lik the HMN1035 and HMN1056. There are several desk mics that will also fit. (Info straight out of the CDM service manual.)

A couple of years ago, we ordered a new desk mic from the CDM accessory catalog. When it arrived, I spotted the 8P8C RJ-45 connector. Having heard all the advice in here about not using the RJ-45 in an RJ-50 socket, I called Motorola and ended up speaking with a product engineer. He assured me that it was OK to do so.

As a side note, I ended up purchasing both RJ-45 and RJ-50 crimping dies and a small stock of both plugs. Over the years, I’ve been able to repair all kinds of mic connectors, and built some custom length CAT-5 cables. Not a bad investment looking back.

 

[PCTEK]

I have a Yaesu FT-991A with what a RJ-45 Mic jack. I would like to use my Motorola desk mic (RMN5068A) that also has an RJ-45. I realize that I'll need to likely change the pin connection points, but do you think the electronics in the Moto Mic will work with my FT-991A? Thanks

 

[cmdrwill]

There are WAY better desk microphones than the RMN5068 and they are not made by /\/\ that can work on the FT991 and other radios.

Heil CB-1 PTT Desk mic stand | eBay
and that seller has some other desk mics coming up.

I have a Heil Traveler headset for the 897 and that should work on the 991 as I sold my897 a while ago.

And just to complicate things a /\/\ HMN3174 hand mic on a ICOM 7200.