Appendix A — Specifications
84 IF2 Network Reader User’s Manual
Port Pin Assignments
GPIO Port
GPIO Port Pin Assignments
Pin Description Active Polarity
1-Input 1 Low-RTN
2-Input 2 Low-RTN
3-Input 3 Low-RTN
4-Input 4 Low-RTN
5Ground
6Ground
7 +Output 1 High (10-48V)
8Ground
9 +Output 2 High (10-48V)
10 Ground
11 +Output 3 High (10-48V)
12 Ground
13 +Output 4 High (10-48V)
14 +Input 1 High (10-48V)
15 +Input 2 High (10-48V)
16 +Input 3 High (10-48V)
17 +Input 4 High (10-48V)
18 12VDC
19 -Output 1 Low-RTN
20 12VDC
21 -Output 2 Low-RTN
22 12VDC
23 -Output 3 Low-RTN
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