Appendix A
Specifications
NI PCI-7342 Hardware User Manual
A-4
ni.com
Forward, reverse, and home inputs
Number of inputs.............................6 (3 per axis)
Voltage range...................................0 to 12 V
Input low voltage......................0.8 V
Input high voltage.....................2 V
Polarity ............................................Programmable, active-high
or active-low
Minimum pulse width......................1 ms
Control.............................................Individual enable/disable, stop on
input, prevent motion, Find Home
Trigger inputs
Number of inputs.............................2
Voltage range...................................0 to 12 V
Input low voltage......................0.8 V
Input high voltage.....................2 V
Polarity ............................................Programmable, active-high
or active-low
Minimum pulse width......................83 ns
Capture latency................................<100 ns
Capture accuracy .............................1 count
Breakpoint outputs
Number of outputs...........................2
Voltage range...................................0 to 5 V
Output low voltage ...................<0.6 V at 64 mA sink
Output high voltage ..................Open collector with built-in
3.3 k
Ω
pull-up to +5 V
Polarity ............................................Programmable, active-high
or active-low
Inhibit/enable output
Number of outputs...........................2 (1 per axis)
Voltage range...................................0 to 5 V
Output low voltage ...................<0.6 V at 64 mA sink
Output high voltage ..................Open collector with built-in
3.3 k
Ω
pull-up to +5 V
