Table 2-2. ni 8254r isolated inputs and outputs, I/o for normal operation, I/o for normal operation -4 – National Instruments NI VISION PCI-8254R User Manual

Page 15

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Chapter 2

Hardware Overview

NI PCI-8254R User Manual

2-4

ni.com

Table 2-2 summarizes the isolated inputs and outputs available on the
NI 8254R.

I/O for Normal Operation

The following sections describe I/O functions that are available on the
NI 8254R during normal operation.

Table 2-2. NI 8254R Isolated Inputs and Outputs

Primary

Function

Input or

Output

Number

Available

Signal

Names

44-Pin

D-SUB on

NI 8254R

Pin Number

37-Pin

Terminal

Block

Number

Trigger

Input

3

TRIG 0

*

ISO Input 5

ISO Input 8

*

11
35
40


15
27

Quadrature
Encoder

Input

1

ISO Input 6
ISO Input 7

37
38

25
26

External
Shutdown
Control

Input

1

ISO Input 11

44

31

Product
Selection
Port

Input

1

ISO Input 0
ISO Input 1
ISO Input 2
ISO Input 3
ISO Input 4

15
30
31
32
34

9

10
11
13
14

General
Purpose

Input

2

ISO Input 9

*

ISO Input 10

*

41
43

29
30

General
Purpose

Output

4

ISO Output 0
ISO Output 1
ISO Output 2
ISO Output 3

12
13
27
28

198

35
36
37

* TRIG 0, ISO Input 8, ISO Input 9, and ISO Input 10 can also function as trigger change detectors.

ISO Input 5 can also function as a latch for the product selection port.

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