National Instruments NI 9516 Operating Instructions And Specifications - page 28
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NI 9516 Operating Instructions and Specifications
Max count rate
Differential........................... 20 × 10
6
counts/sec
Single-ended ........................ 5 × 10
6
counts/sec
Forward, reverse, and home inputs
Input type.......................................... Software-selectable: sinking
or sourcing
Limit or home input configured for sinking
Digital logic levels, OFF state
Input voltage ........................ ≤5 V
Input current......................... ≤250 µA
Digital logic levels, ON state
Input voltage ........................ 11 to 30 V
Input current......................... ≥2 mA
Limit or home input configured for sourcing
Digital logic levels, OFF state
Input voltage ........................ 11 to 30 V
Input current......................... ≤1 mA
Digital logic levels, ON state
Input voltage ........................ ≤5 V
Input current......................... ≥2 mA