NI 9512 Operating Instructions and Specifications
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© National Instruments
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29
Continuous output current (
I
0
)
on each channel .......................... ±100 mA max
Output impedance (
R
0
)............... 0.3
Ω
max
Output voltage (
V
0
) sourcing
......V
sup
- (
I
0
R
0
)
Output voltage (
V
0
) sinking
........I
0
R
0
Min output pulse width .............. 100 µs
Active state................................. Software-selectable: on or
off
Motion I/O
Encoder 0 Phase A/B and Index inputs
Type............................................ RS-422 differential or
single-ended inputs
Digital logic levels, single-ended
Voltage ................................. -0.25 to 5.25 V
High, VIH ............................ 2.0 V min
Low, VIL.............................. 0.8 V max
Digital logic levels, differential (Phase(+) - Phase(-))
Input high range ................... 300 mV to 5 V
Input low range .................... -300 mV to -5 V
