This system ground is also referred to as the network equipment building system
(NEBS) ground.
Note
• If your chassis does not have the system ground attached, you must install the system ground lug. See
the Establishing the System Ground, on page 30 for installation instructions and location of the chassis
system ground pads.
You do not need to attach a supplemental system ground wire to the system
ground lug; the lug provides a direct path to the bare metal of the chassis.
Note
Before you install the system ground lug, you must correctly attach the ESD wrist strap.
Procedure
Step 1 Attach the ESD wrist strap to bare skin as follows:
a) If you are using the ESD wrist strap supplied with the FRUs, open the wrist strap package and unwrap
the ESD wrist strap. Place the black conductive loop over your wrist and tighten the strap so that it makes
good contact with your bare skin.
b) Open the package and remove the ESD wrist strap. Locate the end of the wrist strap that attaches to your
body and secure it to your bare skin.
Step 2 Grasp the spring or alligator clip and momentarily touch the clip to a bare metal spot, such as an unpainted
rack rail, to safely dissipate any built-up static charge to the entire rack.
Step 3 Attach the ESD strap to the system ground in one of the following ways:
• If you are using a wrist strap that is equipped with a plug, insert the plug into an open screw hole used
for the grounding lug.
• 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
In addition, follow these guidelines when handling components:
• Handle carriers by available handles or edges only; avoid touching the printed circuit boards or connectors.
Cisco UCS 6300 Series Fabric Interconnect Hardware Installation Guide
29
Installing the Cisco UCS 6300 Series Fabric Interconnect
Preventing Electrostatic Discharge Damage
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