Technical Description 3-3
The following table shows four common input resistors and the ranges
associated with each:
The maximum input voltage can be increased by increasing the input resistor
accordingly. Because socketed DIP resistor networks are used, they can easily
be replaced with a different value. This can be done at the factory. The input
circuits are not intended for monitoring 120-volt AC circuits. This
voltage is too high for the circuits and dangerous to have on the card.
Table 3-1. Sensor Input Ports Pin Assignments (DB-37 Female Labeled as Input)
Input
Resistor
(ohms)
Value
Turn-On
(volts)
Max Input
Range
(volts)
Max
Current
(mA)
220
1.76
7 27
560
2.8
12 19
1K
4.1
16 15
2.2K 7.7
24
10
Port A Bit
P1 Pin#
Port B Bit
P1 Pin#
0
18,37
0
10,29
1
17,36 1
9,
28
2
16,35
2
8, 27
3
15,34 3
7,
26
4
14,33 4
6,
25
5
13,32
5
5, 24
6
12,31
6
4, 23
7
11,30
7
3, 22
Ground
2,20,21
+ 12V
19
+ 5V
1
Содержание PCI-DIO32
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