Specifications
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National Instruments Corporation
A-3
National Instruments UMI-7774/7772 User Manual
Maximum on-state voltage drop ............ 1.2 V at 100 mA
Reverse polarity protection .................... Yes, –30 V
Short circuit and overload protection..... Yes
General Purpose Digital Outputs
Type ....................................................... Optically isolated,
current sourcing
Output voltage range .............................. 5 to 30 V
Output current
5 V
iso
............................................... 60 mA, maximum
24 V
iso
............................................. 150 mA, maximum
30 V
iso
............................................. 160 mA, maximum
Maximum pulse rate............................... 10 KHz
Minimum pulse generated...................... 100 µs
Maximum on-state voltage drop ............ 1.2 V at 100 mA
Reverse polarity protection .................... Yes, –30 V
Short circuit and overload protection..... Yes
Step/Direction/Breakpoint Outputs
Compatibility ......................................... Signal pass-through
Analog Inputs
Compatibility ......................................... Signal pass-through
Analog Outputs
Compatibility ......................................... Signal pass-through
Host Bus Voltage Interlock
Voltage ................................................... 4.2 VDC
