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Appendix A Specifications
© National Instruments Corporation A-7 NI 7831R User Manual
by the digital outputs use the
following equation:
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 at 1 A total,
250 mA per I/O connector pin
Physical
Dimensions (not including connectors)
NI PXI-7831R.................................16 cm by 10 cm (6.3 in. by 3.9 in.)
NI PCI-7831R.................................17 cm by 11 cm (6.7 in. by 4.3 in.)
I/O connectors........................................Three 68-pin female high-density
VHDCI type
Maximum Working Voltage
Maximum working voltage refers to the signal voltage plus the
common-mode voltage.
Channel-to-earth.....................................±12 V, Installation Category I
Channel-to-channel................................±24 V, Installation Category I
Environmental
The NI 7831R is intended for indoor use only.
Operating Environment
Using 40 MHz timebase.........................0 to 55 °C, tested in accordance
with IEC-60068-2-1 and
IEC-60068-2-2
Using 80 MHz timebase.........................0 to 55 °C in all NI PXI chassis
except the following:
0 to 40 °C when installed in an
NI PXI-1000/B or NI PXI-101X
current sourced on channel
i
i 1=
j
∑