[arm-allstar] Please help me validate this is the correct CDM750 to DMK URI cable

James R. Pilgram jim.pilgram at gmail.com
Sun Jun 3 17:33:52 EST 2018


This is correct but you don't need 15 & 16 jumper as audio comes out the 
speaker without it. Look here http://www.batlabs.com/htpro.html#model 
and here http://www.batlabs.com/images/cdmacc.gif. Also pin 13on the 
DB25 is ground.

Jim NH6HI


On 06/03/18 04:31, "Peter Hertler via arm-allstar" wrote:
> Hello All.
>
> I am trying to create a cable to connect my Motorola CDM750 to DMK URI in a
> simplex configuration. When I acquire another CDM750 the plan is to make a
> repeater.
>
> After having searched the forum and the googling the heck out of it, this
> is what I came up with. I would appreciate if someone would validate the
> connections before I solder it together.
>
> *Motorola CDM750 DMK URI*
> *(16 Pin)                                           (25 pin)*
>
> 2 - External Mic Audio ---------------  22
>
> 3 - Mic PTT------------------------------- 1
>
> 11 - RX Audio --------------------------- 21
>
> 8 - COR(COS) (programable)------- 8
>
> 7 - Ground ------------------------------- 19,20
>
> 15 --
>        | internal Speaker
> 16 --
>
> Thanks for taking the time to  read my post.
>
> 73
> Peter VE3KAI
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