10
© Sealevel Systems, Inc.
8002H Manual | SL9021 9/2021
Programming the DIO-16.PCI, Continued
Input Port Pin Assignments (DB-37 Male)
Port A Bit
P1
0
2,20
1
3,21
2
4,22
3
5,23
4
6,24
5
7,25
6
8,26
7
9,27
Output Ports (Reed Relays)
Reed relays provide very high quality, long life, low current (10 Watt maximum), dry contact
switch closures. Reed relays are not suited for high current applications, and can be destroyed by
inductive load switching, where a spark occurs across the contacts internally. The relays are
normally open, and close when energized.
Output Port Pin Assignments
Port C Bit
Relay
P2 Pin
0
K1
10,28
1
K2
11,29
2
K3
12,30
3
K4
13,31
4
K5
14,32
5
K6
15,33
6
K7
16,34
7
K8
17,35
Power and Ground Pin Assignments
Ground
18,36,37
+ 5 Volts
19
+ 12 Volts
1
