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Chapter 3 LEDs, DIP Switches, and Connectors
© National Instruments Corporation 3-11 NI 1450 Series Compact Vision System User Manual
Ethernet
The Ethernet port on the NI 1450 provides connection between the NI 1450
and the development computer, either directly or through a network port.
The NI 1450 automatically detects the speed of the connection
and configures itself accordingly.
If you are connecting the NI 1450 to the development computer through
a network port, use a standard Ethernet cable. To connect the NI 1450
directly to the development computer, use an Ethernet crossover cable.
TRIG 0
The TRIG 0 isolated input on the NI 1450 provides connection to
external devices, such as proximity sensors and start/stop buttons. For easy
connection to the TRIG 0 input, use the National Instruments SMB 111
coaxial cable (part number 763422-01).
Note Additional isolated inputs are available on the 44-pin DSUB connector.
Caution These isolated inputs are compatible with 5 V logic if the external circuit meets
the voltage and current requirements listed in Appendix B, Specifications.
TRIG 1 and TRIG 2
You can use the two TTL outputs available on the SMB connectors for
triggering cameras and external interfaces, such as lighting control units.
For easy connection to the TTL outputs, use the National Instruments SMB
111 coaxial cable (part number 763422-01).
Note Additional TTL outputs are available on the 44-pin DSUB connector.
Caution Do not connect voltage or current sources to TTL outputs. Doing so could
damage the NI 1450.
General-Purpose Digital I/O
The 44-pin DSUB connector, shown in Figure 3-8, provides access to the
general-purpose digital inputs and outputs. The general-purpose digital I/O
available on this connector includes two TTL inputs, eight TTL outputs,
twelve isolated inputs, and four isolated outputs. For easy connection to the
digital I/O connector, use the National Instruments digital I/O cable and
terminal block.