Chapter 3 Signal Connections
© National Instruments Corporation 3-7 NI PCI-8254R User Manual
27 36 ISO Output 2 General-purpose
output —
28 37 ISO Output 3 General-purpose
output —
29 12 Ciso Isolated
common-mode
signal
—
30 10 ISO Input 1 Input port,
Data(1) —
31 11 ISO Input 2 Input port,
Data(2) —
32 13 ISO Input 3 Input port,
Data(3) —
33 16 Ciso Isolated
common-mode
signal
—
34 14 ISO Input 4 Input port,
Data(4) —
35 15 ISO Input 5 Input port latch,
Data(5) Pulse generator
trigger input
36 28 Ciso Isolated
common-mode
signal
—
37 25 ISO Input 6 Quadrature
encoder Phase A General-purpose
input
38 26 ISO Input 7 Quadrature
encoder Phase B General-purpose
input
39 28 Ciso Isolated
common-mode
signal
—
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