Appendix A
Specifications
A-4
ni.com
General-Purpose Digital I/O
Inputs
Number of inputs.............................8
Minimum pulse width......................50
µ
s
Input type.........................................Sinking or sourcing
Voltage range...................................0 to 30 V, optically isolated
Input on voltage........................11 to 30 V
Input off voltage .......................0 to 4 V
Turn-on current
11 V inputs ...............................4.5 mA maximum
30 V inputs ...............................2.5 mA maximum
Active state ......................................Programmable, active open
or active closed
Optional functionality......................Shutdown input, drive (servo)
ready input
Outputs
Number of outputs...........................8
Minimum pulse width......................10
µ
s
Output type ......................................Sinking or sourcing
(jumper-selectable)
Switching voltage ............................0 to 30 V maximum
1
Maximum voltage drop
Sourcing ...................................2 V at 350 mA
Sinking .....................................1.6 V at 350 mA
Maximum switching current
1
The General-Purpose Output Supply voltage (5 V to 30 V) controls the sourcing output voltage range.
Ambient
Temperature
Sourcing
Sinking
All Outputs
(each)
One
Output
All Outputs
(each)
One
Output
Up to 25 ºC
75 mA
350 mA
125 mA
475 mA
Up to 55 ºC
50 mA
300 mA
100 mA
325 mA