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Caution
Never connect the +5 V power terminals to analog or digital ground or to any
other voltage source on the NI 78xxR device or any other device. Doing so can damage the
device and the computer. NI is not liable for damage resulting from such a connection.
Device Fuse Replacement (NI 784 x R/785 x R Only)
© National Instruments Corporation
Older revision NI 781xR/783xR devices have a self-resetting fuse to protect
the supply from overcurrent conditions. This fuse resets automatically
within a few seconds after the overcurrent condition is removed. For more
information about the self-resetting fuse and precautions to take to
avoid improper connection of +5 V and ground terminals, refer to the
KnowledgeBase document, Self-Resetting Fuse Additional Information,
by going to
ni.com/info
(NI 784 x R/785 x R Devices)
user-replaceable socketed fuse to protect the supply from overcurrent
conditions. When an overcurrent condition occurs, check your cabling to
the +5 V terminals and replace the fuse as described in the Device Fuse
Replacement (NI 784xR/785xR Only) section.
The power rating on most devices is +4.75 to +5.25 VDC at 1 A.
Refer to the NI R Series Multifunction RIO Specifications document,
available at
ni.com/manuals
NI 784xR/785xR devices have a replaceable fuse, Littelfuse part
number 0453004, that protects the device from overcurrent through
the power connector.
To replace a blown fuse in the NI 784xR/785xR, complete the following
steps:
1.
Power down and unplug the computer or PXI chassis.
2.
Remove the PCI/PCI Express device from the expansion slot on the
computer, or the PXI device from the PXI slot in the PXI chassis.
Chapter 2
and entering the info code
All NI 784xR/785xR devices have a
, to obtain the power rating for your device.
2-27
R Series Multifunction RIO User Manual
Hardware Overview of the NI 78xxR
.
pptc
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