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2.6 Connector Pin Assignment
2.6.1 Pin Assignment of PCIDIO 24H/48H/96H
The I/O ports of PCIDIO 24H/48H/96H emulate the mode 0 configuration of
the 8255 general purpose programmable peripheral interface. The cards
come equipped with 50-pin male IDC connectors that interface with OPTO-
22. Figure 2.4 shows the circuits and pinout of PCIDIO 24H/48H/96H's
connectors (CN1~CN4) .
1
2
3
JPn
+12V
FUSE
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
CNn
HEADER 25X2
PnC7
PnC6
PnC5
PnC4
PnC3
PnC2
PnC1
PnC0
PnB7
PnB6
PnB5
PnB4
PnB3
PnB2
PnB1
PnB0
PnA7
PnA6
PnA5
PnA4
PnA3
FUSE
PnA2
PnA1
PnA0
+5V
Figure 2.6.1 pin assignments and pow er signals of PCIDIO 24H/48H/96H