• If you are using a wrist strap with spring or alligator clips, attach either the spring clip or the alligator
clip to the ground lug screw:
If you are using the ESD wrist strap that is supplied with the FRUs, squeeze the spring clip jaws open, position
the spring clip to one side of the system ground lug screw head, and slide the spring clip over the lug screw
head so that the spring clip jaws close behind the lug screw head.
The spring clip jaws do not open wide enough to fit directly over the head of the lug screw or the
lug barrel.
If you are using an ESD wrist strap that is equipped with an alligator clip, attach the alligator clip
directly over the head of the system ground lug screw or to the system ground lug barrel.
Note
Grounding the Fabric Interconnect
The fabric interconnect has a grounding pad with two threaded M4 holes for attaching a grounding lug. The
following are guidelines for grounding the fabric interconnect.
• When installing or replacing the unit, the ground connection must always be made first and disconnected
last. Statement 1046
• We recommend grounding the fabric interconnect, even if the rack is already grounded.
• All power supplies must be grounded. The receptacles of the AC power cables used to provide power to
the fabric interconnect must be the grounding type, and the grounding conductors should connect to
protective earth ground at the service equipment.
• When installing or replacing the unit, the ground connection must always be made first and disconnected
last. Statement 1046
• Grounding the fabric interconnect is required if you are using DC power supplies, even if the rack is
already grounded. A grounding pad with two threaded M4 holes is provided on the fabric interconnect
for attaching a grounding lug. The ground lug must be NRTL listed. In addition, the copper conductor
(wires) must be used and the copper conductor must comply with NEC code.
Procedure
Step 1 Use a wire-stripping tool to remove approximately 0.75 inches (19 mm) of the covering from the end of the
grounding cable.
Step 2 Insert the stripped end of the grounding cable into the open end of the grounding lug.
Step 3 Use the crimping tool to secure the grounding cable in the grounding lug.
Step 4 Remove the adhesive label from the grounding pad on the fabric interconnect.
Cisco UCS 6454 Fabric Interconnect Hardware Installation Guide
27
Installing the Cisco UCS Fabric Interconnect
Grounding the Fabric Interconnect
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