IBM AR-B3001 Manual page 11

Pin Descriptions
1 CH 0
5 CH 1
9 CH 2
13 CH 3
17 CH 4
21 CH 5
25 CH 6
29 CH 7
3 CH 8
7 CH 9
11 CH 10
15 CH 11
19 CH 12
23 CH 13
27 CH 14
31 CH 15
33 -12V DC
Pin Descriptions
2 AGND
6 AGND
10 AGND
14 AGND
18 AGND
22 AGND
26 AGND
30 AGND
4 AGND
8 AGND
12 AGND
16 AGND
20 AGND
24 AGND
28 AGND
32 AGND
34 +12V DC