National Instruments NI 9411 - Page 18

© National Instruments Corp. 17 NI 9411 Operating Instructions and Specifications
Input current
At 5 V 1 mA per channel
At 24 V 4 mA per channel
Input impedance................................8.4 k
I/O protection
Input voltage
(channel-to-COM)......................30 V max
Input current  4 mA, internally limited
Input delay time ................................ 500 ns max
MTBF ...............................................800,319 hours at 25 °C;
Bellcore Issue 2, Method 1,
Case 3, Limited Part Stress
Method
Note Contact NI for Bellcore MTBF specifications
at other temperatures or for MIL-HDBK-217F
specifications.
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