Chapter 3
Signal Connections
© National Instruments Corporation
3-9
I/O Terminal Block
National Instruments provides an I/O terminal block with the NI 8254R,
which can be mounted either horizontally or vertically. The I/O terminal
block breaks the signals out into easy-to-use screw terminals and comes
with a cable that connects directly to the 44-pin D-SUB connector on the
NI 8254R.
Note
TRIG 0, TRIG 1, and TRIG 2 signals are not accessible via the standard 44 to 37-pin
cable and I/O terminal block.
NI Vision I/O Terminal Block and Prototyping Accessory
Use the NI Vision I/O Terminal Block and Prototyping Accessory to
troubleshoot and prototype digital I/O applications for the NI 8254R, the
NI 8255R, and the CVS-1450 Series Compact Vision System. The
NI Vision I/O Terminal Block and Prototyping Accessory provides screw
terminals for easy connections and LEDs for each signal.
Note
TRIG 0, TRIG 1, and TRIG 2 signals are not accessible via the standard 44 to 37-pin
cable and NI Vision I/O Terminal Block and Prototyping Accessory.
Power Requirements
This section describes the power requirements of the NI 8254R.
Isolated Outputs Power Connector
Figure 3-3 illustrates the isolated outputs power connector on the
NI 8254R.
Figure 3-3. NI 8254R Isolated Power Connector
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