DB25 Analog Breakout connector pinout

Female Male
Pin Signal
1 Channel 8 Signal +
2 Channel 8 Ground
3 Channel 7 Signal -
4 Channel 6 Signal +
5 Channel 6 Ground
6 Channel 5 Signal -
7 Channel 4 Signal +
8 Channel 4 Ground
9 Channel 3 Signal -
10 Channel 2 Signal +
11 Channel 2 Ground
12 Channel 1 Signal -
13 Not Used
14 Channel 8 Signal -
15 Channel 7 Signal +
16 Channel 7 Ground
17 Channel 6 Signal -
18 Channel 5 Signal +
19 Channel 5 Ground
20 Channel 4 Signal -
21 Channel 3 Signal +
22 Channel 3 Ground
23 Channel 2 Signal -
24 Channel 1 Signal +
25 Channel 1 Ground

Shown from wiring side