The pinout for the serial console cable (J2) to DB25 is as follows. Take the following image as an indication of the numbering scheme on the 20 pin connector:
We’re looking at the FRONT and number from left to right.
We have the following connections:
Pin | To DB25 | Pin | To DB25 |
|---|---|---|---|
1 | NC | 11 | NC |
2 | CLOSED HOLE | 12 | NC |
3 | NC | 13 | NC |
4 | pin 3 | 14 | NC |
5 | pin 2 | 15 | NC |
6 | NC | 16 | NC |
7 | NC | 17 | NC |
8 | PIN 20 | 18 | NC |
9 | GND | 19 | NC |
10 | NC | 20 | NC |
A cable can be made easily by taking a bit of ribbon cable and a ribbon connector.
My cable uses a DB9 connector that removes the need for a cross cable:
Pin 4: (green wire) to pin 2 of a DB9
Pin 5: (yellow) to pin 3
Pin 8 (brown) to pin
Pin 9 (mantle) to pin 5
WATCH OUT: The original connector LOOKS like a 24 pin connector, but the FIRST and LAST columns are empty, and the receiving connector has no pins there!!
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