National Instruments NI PCI-8254R User Manual
Page 31
Chapter 3
Signal Connections
© National Instruments Corporation
3-5
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