Chapter 2
LEDs, DIP Switches, and Connectors
©
National Instruments Corporation
2-13
NI CVS-1450 Series User Manual
Figure 2-8.
44-Pin DSUB Connector
Table 2-5 lists pin numbers, signal names, and signal descriptions for the
44-pin connector on the NI CVS-1450 device and the 37-pin connector on
the NI Vision I/O Terminal Block and Prototyping Accessory.
Caution
Do
not
draw more than 500 mA combined from the V
iso
pins on the 44-pin DSUB
connector. Do
not
draw more than 100 mA from 24 V or 30 V isolated outputs. Do
not
draw more than 50 mA from 5 V isolated outputs.
Table 2-5.
44-Pin DSUB and 37-Pin Terminal Block Connector Signals
44-Pin
DSUB on
NI CVS-145
0 Device
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-mode signal of the
NI CVS-1450 device main
power
—
3
4
TTL Output 0
Watchdog timer output
General-purpose output
1
16
31
15
30
44
NI 1454
Compact Vision System
