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Chapter 1 Installing and Configuring the SCXI-1127/1128
SCXI-1127/1128 User Manual 1-24 ni.com
To remove a module or chassis, right-click the chassis or module you want
to remove and select Delete.
To test the chassis configuration, right-click the chassis and select Test.
Safety Information
The following cautions contain important safety information concerning
hazardous voltages.
Cautions
You must insulate all of your signal connections appropriately to the highest
available voltage with which the SCXI-1127/1128 may come in contact. Any voltage
connected to the SCXI-1127/1128 connector may appear on any other pin of this
connector.
Equipment described in this document must be used in an Installation Category II or lower
environment per IEC 60664.
Do not operate the module in an explosive atmosphere or where there may be flammable
gases or fumes.
SHOCK HAZARD—This unit should only be opened by qualified personnel aware of the
dangers involved. Disconnect all power before removing the cover. Always install the
grounding screw. If signal wires are connected to the module or terminal block, dangerous
voltages may exist even when the equipment is turned off. Before you remove any installed
terminal block or module, disconnect the AC power line or any high-voltage sources,
(≥ 30 V
rms
and 42.4 V
peak
, or 60 VDC), that may be connected to any terminal block or
module.
Do not operate damaged equipment. The safety-protection features built into this module
can be impaired if the module becomes damaged in any way. If it is damaged, turn the
module off and do not use it until service-trained personnel can check its safety. If
necessary, return the module to National Instruments for service and repair to ensure that
its safety is not compromised.
Clean the module and accessories by brushing off light dust with a soft non metallic brush.
Remove other contaminants with a stiff non metallic brush. The unit must be completely
dry and free from contaminants before returning it to service.
The module must be used in a UL-listed SCXI chassis.
Do not substitute or modify equipment. Because of the danger of introducing additional
hazards, do not install unauthorized parts or modify the module. Return the module to