Figure 3-8. 44-pin dsub connector – National Instruments NI 1450 Series User Manual
Page 43
Chapter 3
LEDs, DIP Switches, and Connectors
NI 1450 Series Compact Vision System User Manual
3-12
ni.com
For detailed information about digital I/O functionality and recommended
use cases, refer to Chapter 4,
.
Note
Isolated inputs are compatible with 5 V logic if the external circuit meets the voltage
and current requirements listed in Appendix B,
Specifications
.
Figure 3-8. 44-Pin DSUB Connector
Table lists pin numbers, signal names, and signal descriptions for the
44-pin connector on the NI 1450 and the 37-pin terminal block.
Caution
Do not draw more than 500 mA combined from the Viso pins on the 44-pin
DSUB connector. Do not draw more than 100 mA from each isolated output.
Table 3-5. 44-Pin DSUB and 37-Pin Terminal Block Connector Signals
44-Pin
DSUB on
NI 1450
Pin Number
37-Pin
Terminal
Block
Pin Number
Signal Name
Primary Function
Alternate Function
1
1
TTL Input 0
Pulse generator trigger input
General-purpose input
2
3
C
Common of the NI 1450
main power
—
3
4
TTL Output 0
Watchdog output
General-purpose output
1
16
31
15
30
44
NI 1454
Compact Vision System