Power Requirement - National Instruments NI 781xR User Manual

Power Requirement

Physical
1
Does not include current drawn form the +5 V line on the I/O connectors.
2
Does not include current sourced by the digital outputs.
© National Instruments Corporation
+5 VDC (±5%)
NI 7811R......................................... 9 mA (typ), 50 mA (max)
NI 7813R......................................... 9 mA (typ), 50 mA (max)
+3.3 VDC (±5%)
NI 7811R......................................... 650 mA (typ), 1,000 mA (max)
NI 7813R......................................... 850 mA (typ), 1,350 mA (max)
To calculate the total current sourced by the digital outputs, use the
following equation:
∑
i
where j is the number of digital outputs being used to source current.
Power available at I/O connectors ......... +4.50 to +5.25 VDC,
Dimensions (not including connectors)
NI PXI-781xR ................................ 16.0 cm × 10.0 cm
NI PCI-781xR ................................ 15.5 cm × 10.6 cm
Weight
PCI-781xR ...................................... 112 g
PXI-781xR ...................................... 162 g
I/O connectors ........................................ Four 68-pin female high-density
j
current sourced on channel i
1
=
250 mA per I/O connector pin
(6.3 in. × 3.9 in.)
(6.105 in. × 4.162 in.)
VHDCI type
A-3
Appendix A Specifications
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NI 781xR User Manual
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