3
Cabling and Wiring
This chapter describes the cabling and wiring required for attaching
accessories and 1/0 lines to the main I/O connector of your PIO-12
boards. The main 1/0 connector of the P10-12 is a 37-pin D-type. Pin
assignments for this connector are shown in Figure 3-1.
1
Dig. Com. - 19
+5 V - 18 • •
Power D i g . Corn. - 17 • •
Supplies + 1 2 V - 16 • •
Dig. Corn. - 15 •
for
•
-12 V - 14 • •
Computer D i g . Com. - 13 • •
-5 V - 12 • •
Dig. Com. -11 • •
PBO - 10 • •
PB1 - 09 • •
PB2 - 08 • •
PB3 - 07 • •
Port B I P B 4 - 06 •
PB5 - 05 • •
•
PB6 - 04 •
PB7 - 03 • a
Interrupt Enable - 02 •
•
Interrupt Input - 0 1 •
37 - PAO
36 - PA1
35 - PA2
34 - PA3
33 - PA4 P o r t A
32 - PA5
31 - PA6
30 - PA7
29 - PCO
28 - PC1
27 - PC2 U p p e r
26 - PC3
25 - PC4
24 - PC5
Lower
23 - PC6
22 - PC7
21 - Dig. Com.
20 - +5 V
Port C
Figure 3-1. Pin Assignments for the Main I/O Connector
Caution:
To avoid electrical damage, turn off power to the computer and
any attached accessories before making connections to P10-12 boards.
3-1
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