National Instruments NI PCI-8254R User Manual

Page 31

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Chapter 3

Signal Connections

© National Instruments Corporation

3-5

NI PCI-8254R User Manual

5

6

C

Common-mode
signal of the
NI 8255R device
main power

6

7

TTL Output 2

Pulse generator
output

General-purpose
output

7

8

TTL Output 3

Pulse generator
output

General-purpose
output

8

6

C

Common-mode
signal of the
NI 8255R device
main power

9

NC

TRIG 2

*

/TTL

Output 9

Pulse generator
output

General-purpose
output

10

17

V

iso

Isolated power

11

NC

TRIG 0

*

/ISO

Input 12

Pulse generator
trigger input

Trigger Change
Detector,
General-purpose
input

12

19

ISO Output 0

General-purpose
output

13

35

ISO Output 1

General-purpose
output

14

34

C

iso

Isolated
common-mode
signal

15

9

ISO Input 0

Input port,
Data(0)

Table 3-3. Signal Connections (Continued)

44-Pin D-SUB

on NI 8255R

Device Pin

Number

37-Pin Terminal

Block Number

Signal Name

Primary

Function

Alternate

Function

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