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Relay Control Digital Output
Relay control DO specifications assume the use of direct board-to-board connections to I/O
connectors on the NI 9683. Refer to the
Outputs
section for information about designing ribbon cables to meet the relay control DO
specifications on the NI 9683.
Number of channels.......................................... 4
Output type ....................................................... Sinking
Startup voltage .................................................. Open
External power supply voltage range ............... 0 V to 30 V
Continuous current ........................................... 500 mA
Maximum inrush current .................................. 8 A
Maximum inrush time ...................................... 300 ms
Turn ON rate
1
................................................... 1 operation per 60 s
Turn ON time.................................................... 6 ms max
Turn OFF time .................................................. 0.2 ms max
Protection
Reversed-voltage ...................................... None
Short-circuit .............................................. None
LVTTL Digital Input/Output
Number of DIO channels.................................. 32
Maximum tested current (per channel)............. 3 mA
Maximum total current (all lines) ..................... 96 mA
The performance of the LVTTL DIO lines is bound by the FPGA, signal
Note
integrity, the applications timing requirements, and your design. For more
information on using DIO to connect to RMCs, go to
Info Code
1
Turn ON rate is the minimum time between inrush current events and is based on the maximum inrush
current over the maximum inrush time. You can turn OFF the relay control DO at any point during
operation.
Selecting a Wire Gauge for Relay Control Digital
.
RMCDIO
NI 9683 User Guide and Specifications | © National Instruments | 23
and enter the
ni.com/info
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