ADLINK cPCI-7249R - Manual (Page 21)

Installation • 13
2.6 Connector Pin Assignment
2.6.1 Pin Assignment of PCI-7224/7248/7296
The I/O ports of PCI-7224/7248/7296 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 PCI-7224/7248/7296'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 power signals of PCI-7224/7248/7296
The DIO pin names are specified as PnXb, where
n : means the connector reference number n=1~4.
X : means the port name, X= ‘A’ , ‘B’ or ‘C’
b : means the bit number of a port, b=0~7
For example, P1C4 means bit 4 of port C on connector CN1.
Note:
1. The pinout of the CN1 ~ CN4 connectors are identical.
2. The power supply pins are protected by resetable fuses. Refer to section
4.4 for details of the power supply.