Motorola CDM

FFJeffro · #1 (**permalink**) 07-05-2009, 07:47 PM

How do you hook the programming cable up to program a CDM remote mount??? Do you hook up thru mic port on control head or straight to radio its self... If someone could give me a run down on this it would be nice... Thanks Jeff

fineshot1 · #2 (**permalink**) 07-05-2009, 08:24 PM

The mic jack on the head is used - same as if the head were attached to the chasis.

nytechservices · #3 (**permalink**) 07-05-2009, 10:24 PM

Quote:

Originally Posted by fineshot1

The mic jack on the head is used - same as if the head were attached to the chasis.

That is absolutely INCORRECT and will brick your radio. If you don't know the answer keep your mouth shut. You need to use the rear accessory connector which is the safest way to program the CDM in the first place.

fineshot1 · #4 (**permalink**) 07-06-2009, 05:52 AM

Quote:

Originally Posted by nytechservices

That is absolutely INCORRECT and will brick your radio. If you don't know the answer keep your mouth shut. You need to use the rear accessory connector which is the safest way to program the CDM in the first place.

I am speaking from experience and know quite well what I am talking about.

I have this setup in my shop, a test radio that was once in a mobile unit.

Yes - you can program the CDM series from the accessory connector but it is
not necessary unless you have specific reasons or needs to do so.

I don't know where you get your information from but it's time to re-educate yourself
on this one.

PS - I have never bricked a motorola cdm radio using either method and have programed
many of these.

N2DLX · #5 (**permalink**) 07-06-2009, 07:35 AM

I concur, program via the mic jack on the radio's head. Don't try to program via the jack for the remote head unit, THAT'S the unsafe part. I've been programming CDM's for a long time and never once had an issue or bricked one. Make sure your cable doesn't pop out while programming and you should be in good shape!

SD70MAC · #6 (**permalink**) 07-06-2009, 10:01 AM

I also would agree that you should program a remote mount CDM from the rear 20pin port. This would be safest way because the CDM some type of issue with the remote set up. Some program ok from the mic port and some don't but you will only know when its too late and you have an eeprom cs error. I have fixed about 4-5 for people that got the eeprom error. NEVER USE A USB cable of any kind for the HT/CDM you will be sorry at some point.

fineshot1 · #7 (**permalink**) 07-06-2009, 11:34 AM

OK - perhaps I missed something - but I am looking at section 4(Radio Programming and Tuning Procedures) in the CDM Series Basic Service Manual 6881091C62-C and it does not mention that
programming via to 20 pin accessory connector "is a must" in the remote head configuration.

Perhaps someone can tell me which documentation this is pointed out in, or is this some
un-documented moto thing?

fireandems13669 · #8 (**permalink**) 07-06-2009, 12:32 PM

Program them everyday through the mic jack on the cdm remote heads no issues

iamhere300 · #9 (**permalink**) 07-06-2009, 12:33 PM

As a MSS, we have seen LOTS of CDM radios, in remote mounts. Never have we bricked one of them by using the microphone jack on the control head.

Never.

We also use USB converters for the cable also - no problems.

fineshot1 · #10 (**permalink**) 07-06-2009, 12:44 PM

thanks 13669 & 300 - i thought that was the case but i just wanted confirmation that i was not missing something.

ILMRadioMan · #11 (**permalink**) 07-06-2009, 01:27 PM

I just programmed 2 right now through the mic jack on a remote head.

Somebody got a little jumpy up there.

tdeater · #12 (**permalink**) 07-06-2009, 02:23 PM

I have a few in my fleet with remote heads, and have never had issues programming them from the mic port. I did hear from another service provider that if you purchase some of the aftermarket remote head kits, they have seen them have problems programming trough the mic port. According to them, if you use the Motorola kits, there are no problems. So, in a way, there may be some truth to both sides of this. Again, this is what was told to me. I use the Motorola kits on my radios without any problems, other than the inadvertent user installed the cable in the way of the sliding seat rail cut.

CommJunkie · #13 (**permalink**) 07-06-2009, 10:21 PM

I use Motorola parts and program radios almost every day through the mic jack on the remote head and have no problems. There is nothing wrong with going this route. NOTHING.

nytechservices · #14 (**permalink**) 07-07-2009, 04:34 PM

You may be able to break the speed limit 100 times and not get a ticket. Doesn't mean you have a fool proof system. With the new CPS being able to correct the EEPRM Error, this is less of an issue as you are less likely to send your new paperweight to the depot. With a remote mount I was trained by Moto to never program through the mic jack.

fineshot1 · #15 (**permalink**) 07-08-2009, 08:42 AM

Quote:

Originally Posted by nytechservices

With a remote mount I was trained by Moto to never program through the mic jack.

How long ago was this training? Perhaps you can locate your training material that points this out?

I can not locate online or otherwise any doc that points this out.

BTW - your response of "If you don't know the answer keep your mouth shut." was totally un-called for!

DPapay · #16 (**permalink**) 07-08-2009, 03:01 PM

Just my two cents, maybe they were talking about the dual head kit. You are never supposed to program the radio with the dual head kit. You are supposed to disconnect one of the heads from the interface box, and connect the heads control cable to the radio chassis, then program.
In a remote mount, the jack on the front of the radio chassis, and the one on the rear of the head, are control cable jacks, not mic jacks, and should never be used to try to program. The mic jack and the rear accessory jack are both acceptable programming points. Like many have stated, I too have programmed hundreds of radios over the years through the mic jack and have never bricked any.

HQradio · #17 (**permalink**) 07-09-2009, 03:32 PM

"NOTHING" absolutely "NOTHING" will happen IF you use the correct motorola RIB, CABLE, CPS, POWER SUPPLY.

i have experience from about.... let me think.... 8-900 radio's

CDM's HT's MT's CP' GP's GM's GR's EX's & more!

kd6icz · #18 (**permalink**) 07-28-2009, 10:55 PM

My organization uses plain faced CDM750's for Repeater and Link TX/RX. So I don't have a mic plug. I am looking for the programming kit for the 20 pin connector. Do any of you know the part number for that item? I need everything. Software, Cable(s), RIB.

Thanks

DPapay · #19 (**permalink**) 07-29-2009, 08:45 AM

AARKN4083 - 20 pin cable
need rib box also

kd6icz · #20 (**permalink**) 07-29-2009, 08:51 AM

Would the RIB be a FKN8113? It's funny how you can buy the cable for the mic jack all over the internet but when I punch the 20 pin cable part number into Google lots of info comes up but no place to buy one...

Is there any suggestions on where I might be able to find all three items I need?