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Custom Cabling

When attaching 2 radios to the UDRC™ II it requires two separate custom cables.  In this configuration we are always taking audio from Pin 1 of the mini DIN-6 cable.  There is some debate on setting the radios in 1200 vs. 9600 baud for transmit using Pin 4 when operating at AFSK 1200, choose what works best in your environment.
See a discussion about pre-emphasis

Cable 1 

The first is a modified Mini DIN-6 M/M cable with only pins 1-4 connected. It's important to have pin 5 disconnected or removed if you have something connected to the HD-15 connector.

DIN-6 Pin  Function  Function  Din-6
1 LOL Data In  1
2 GND GND  2
Port 1 3 PTT PTT  3

4 IN1_L Data Out  4
5 1200 N/C N/C
6 SQL N/C N/C
PTT GPIO 23

Cable 2

The second cable will terminate between the mini DIN-6 and the HD-15 connector.

DIN-6 Pin  Function  Function  HD-15 Pin
1 LOR Data In  7
2 GND GND  10 or 5
Port 0 3 PTT PTT  2

4 IN1_R Data Out  9
5 1200 N/C N/C
6 SQL N/C N/C
PTT GPIO 12



Custom made cables from W7TUT

Model C201 (mDIN6 to mDIN6) - Port 1

Model C202 (mDIN6 to HD15) - Port 0

Contact Info