Справочник Пользователя для National Instruments daq pci-pxi-783xr
© National Instruments Corporation
7
Getting Started with R Series Intelligent DAQ
The +5V terminals on the I/O connector supply +5 V referenced to D GND. Use these terminals to
power external circuitry. All NI 78xxR devices are equipped with a fuse to protect the supply from
overcurrent conditions. Refer to the R Series Intelligent DAQ User Manual, available at
power external circuitry. All NI 78xxR devices are equipped with a fuse to protect the supply from
overcurrent conditions. Refer to the R Series Intelligent DAQ User Manual, available at
ni.com/
manuals
, for information about the device-specific fuses.
Connectivity Options
Accessing the signals on the I/O connectors requires at least one cable and one signal accessory. Table 1
summarizes the National Instruments connectivity options available for use with the NI 78xxR device.
summarizes the National Instruments connectivity options available for use with the NI 78xxR device.
For detailed information about connecting I/O signals, refer to the NI R Series Intelligent DAQ User
Manual, available at
Manual, available at
ni.com/manuals
.
Table 1.
R Series Connectivity Options
Cable
Connector
Accessory
Description
SHC68-68-RMIO
*
(NI Recommended)
0
NI SCB-68
High-performance shielded cable wired
specifically for signal connection from the
RMIO connector
specifically for signal connection from the
RMIO connector
†
to the NI SCB-68 terminal
block to provide higher signal integrity and noise
immunity.
immunity.
SHC68-68-RDIO
(NI Recommended)
(NI Recommended)
1, 2
NI SCB-68
High-performance shielded cable wired
specifically for signal connection from the
RDIO connector
specifically for signal connection from the
RDIO connector
†
to the NI SCB-68 terminal
block to provide higher signal integrity and noise
immunity.
immunity.
SH68-C68-S
0, 1, 2
NI SCB-68
Basic shielded cable for signal connection from
the RMIO or RDIO connector to the NI SCB-68
terminal block for noise reduction.
the RMIO or RDIO connector to the NI SCB-68
terminal block for noise reduction.
CAT 5 Ethernet
crossover cable
crossover cable
*
—
—
For use with the NI PXI-78xxR running the
LabVIEW Real-Time Module, if the real-time
PXI system is not configured on a network.
To connect the PXI system to a network port, use
a standard CAT 5 10/100Base-T Ethernet cable.
LabVIEW Real-Time Module, if the real-time
PXI system is not configured on a network.
To connect the PXI system to a network port, use
a standard CAT 5 10/100Base-T Ethernet cable.
*
NI 783xR/784xR/785xR devices only.
†
For a diagram of the twisted pairs in the SHC68-68-RMIO and SHC68-68-RDIO cables and the signals to which they
correspond, go to ni.com/info and enter the info code rdrmio.