
© Sealevel Systems, Inc. - 9 - REL-32.PCIUserManual
Optional DB-37 Female Pin Assignment
In order to maintain compatibility with the existing ISA interface adapter (Sealevel
Item# 3098), an optional 6’ cable is offered with DB-78 Male to dual DB-37 Female
connectors, Part Number CA173. The DB-37 connectors are labeled “Side A” and
“Side B”.
Side A Side B
Pin Function Jumper Pin Function Jumper
1 Ground N/A 1 Ground N/A
2 Relay 2A PORT 1-A2 2 Relay 2B PORT 1-B2
3 Relay 4A PORT 1-A4 3 Relay 4B PORT 1-B4
4 Relay 6A PORT 1-A6 4 Relay 6B PORT 1-B6
5 Relay 8A PORT 1-A8 5 Relay 8B PORT 1-B8
6 Relay 10A PORT 2-A2 6 Relay 10B PORT 2-B2
7 Relay 12A PORT 2-A4 7 Relay 12B PORT 2-B4
8 Relay 14A PORT 2-A6 8 Relay 14B PORT 2-B6
9 Relay 16A PORT 2-A8 9 Relay 16B PORT 2-B8
10 Relay 18A PORT 3-A2 10 Relay 18B PORT 3-B2
11 Relay 20A PORT 3-A4 11 Relay 20B PORT 3-B4
12 Relay 22A PORT 3-A6 12 Relay 22B PORT 3-B6
13 Relay 24A PORT 3-A8 13 Relay 24B PORT 3-B8
14 Relay 26A PORT 4-A2 14 Relay 26B PORT 4-B2
15 Relay 28A PORT 4-A4 15 Relay 28B PORT 4-B4
16 Relay 30A PORT 4-A6 16 Relay 30B PORT 4-B6
17 Relay 32A PORT 4-A8 17 Relay 32B PORT 4-B8
18 12 V N/A 18 12 V N/A
19 5 V N/A 19 5 V N/A
20 Relay 1A PORT 1-A1 20 Relay 1B PORT 1-B1
21 Relay 3A PORT 1-A3 21 Relay 3B PORT 1-B3
22 Relay 5A PORT 1-A5 22 Relay 5B PORT 1-B5
23 Relay 7A PORT 1-A7 23 Relay 7B PORT 1-B7
24 Relay 9A PORT 2-A1 24 Relay 9B PORT 2-B1
25 Relay 11A PORT 2-A3 25 Relay 11B PORT 2-B3
26 Relay 13A PORT 2-A5 26 Relay 13B PORT 2-B5
27 Relay 15A PORT 2-A7 27 Relay 15B PORT 2-B7
28 Relay 17A PORT 3-A1 28 Relay 17B PORT 3-B1
29 Relay 19A PORT 3-A3 29 Relay 19B PORT 3-B3
30 Relay 21A PORT 3-A5 30 Relay 21B PORT 3-B5
31 Relay 23A PORT 3-A7 31 Relay 23B PORT 3-B7
32 Relay 25A PORT 4-A1 32 Relay 25B PORT 4-B1
33 Relay 27A PORT 4-A3 33 Relay 27B PORT 4-B3
34 Relay 29A PORT 4-A5 34 Relay 29B PORT 4-B5
35 Relay 31A PORT 4-A7 35 Relay 31B PORT 4-B7
36 Ground N/A 36 Ground N/A
37 Ground N/A 37 Ground N/A
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