Rack mounting, Connecting safety ground, Connecting to power source – National Instruments NI PXI-1056 User Manual
Page 19
Chapter 2
Installation and Configuration
2-4
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Rack Mounting
Rack-mount applications may require the optional rear rack mount kit
available from National Instruments. Refer to Figure A-3,
, and the instructions supplied with the rack mount kits
to install your PXI-1056 in an instrument rack.
Note
You may want to remove the feet from the PXI-1056 when rack mounting. To do so,
remove the screws holding the feet in place.
Connecting Safety Ground
Caution
The PXI-1056 chassis is designed with a three-position NEMA 5-15 style plug
for the U.S. that connects the ground line to the chassis ground. To minimize shock hazard,
make sure the electrical power outlet you use to power the chassis has an appropriate earth
safety ground.
If your power outlet does not have an appropriate ground connection, you
must connect the premise safety ground to the chassis grounding screw
located on the rear panel. Refer to Figure 1-2,
, to locate the chassis grounding screw. Complete the following
steps to connect the safety ground.
1.
Connect a 16 AWG (1.3 mm) wire to the chassis grounding screw
using a grounding lug. The wire must have green insulation with a
yellow stripe or must be noninsulated (bare).
2.
Attach the opposite end of the wire to permanent earth ground using
toothed washers or a toothed lug.
Connecting to Power Source
Caution
Do not install modules prior to performing the following power-on test.
Attach input power through the rear AC inlet using the appropriate
AC power cable supplied. Refer to Figure 1-2,
, to locate the AC inlet.
Caution
To completely remove power, you must disconnect the AC power cable.