Maplins Electronics ISA 8 way relay card

Pin No.Signal NameI/O
1+5V-
20+5V-
2--
21--
3Relay 1, n/cO
22Relay 1, common-
4Relay 1, n/oO
23--
5Relay 2, n/cO
24Relay 2, common-
6Relay 2, n/oO
25--
7Relay 3, n/cO
26Relay 6, common-
8Relay 3, n/oO
27--
9Relay 4, n/cO
28Relay 4, common-
10Relay 4, n/oO
29--
11Relay 5, n/cO
30Relay 5, common-
12Relay 5, n/oO
31--
13Relay 6, n/cO
32Relay 6, common-
14Relay 6, n/oO
33--
15Relay 7, n/cO
34Relay 7, common-
16Relay 7, n/oO
35--
17Relay 8, n/cO
36Relay 8, common-
18Relay 8, n/oO
37Ground-
19Ground-
Applicable connector: 37-pin D-sub (female)