Motorola CDM1250 Pinout

1

Hey everyone! I’ve pinned out the Motorola CDM1250. Using either a Motorola accessory connector like this one or a standard 2mm pitch 16 pin (8x2) header jack, I was able to connect to my Digirig Lite and send and recieve APRS using PinPoint APRS. Here’s the details:
From the Digirig
Tip: Motorola Pin 9
Ring1: Motorola Pin 5
Ring2: Motorola Pin 3
Sleeve: Motorola Pin 7

It would be great if Denis and his team could build a cable for this radio! Related post here.

2 Likes
2

Very nice.

73 Constrainted

3

Are you sure? pin 9 is a digital input to the CDM. Normally this is connected to 11.
ring 1 usually goes to pin 2.
ring 2 to 3 as you have it and set pin 3 to data ptt.
Sleeve to 7 as you have it.

Matt
AL0R

4

Oh yeah. That is pin 11! You’re right.