Cisco Nexus 5600 Series Hardware Installation Manual page 48

Grounding the Switch
ESD grounding straps are available with banana plugs, metal spring clips, or alligator clips. All
•
chassis from the Cisco Nexus 5600 series are equipped with a banana plug connector (identified by
the ground symbol next to the connector) somewhere on the front panel. We recommend that you
use a personal ESD grounding strap equipped with a banana plug.
• If you choose to use the disposable ESD wrist strap supplied with most FRUs or an ESD wrist strap
equipped with an alligator clip, you must attach the system ground lug to the chassis in order to
provide a proper grounding point for the ESD wrist strap.
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
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
Note
a direct path to the bare metal of the chassis
After you install the system ground lug, follow these steps to correctly attach the ESD wrist strap:
Attach the ESD wrist strap to bare skin as follows:
Step 1
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.
If you are using an ESD wrist strap equipped with an alligator clip, open the package and remove
b.
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 on the ESD wrist strap and momentarily touch the clip to a bare metal
spot (unpainted surface) on the rack. We recommend that you touch the clip to an unpainted rack rail so
that any built-up static charge is then safely dissipated to the entire rack.
Step 3 Attach either the spring clip or the alligator clip to the ground lug screw as follows:
a. 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.
Note
If you are using an ESD wrist strap that is equipped with an alligator clip, attach the alligator clip
b.
directly over the head of the system ground lug screw or to the system ground lug barrel.
To attach the ESD wrist strap to the system ground lug screw for any of the Cisco Nexus 5600 switches,
clip the grounding wire to the screw that attaches the grounding lug to the switch chassis.
In addition, follow these guidelines when handling modules:
Handle carriers by available handles or edges only; avoid touching the printed circuit boards or
•
connectors.
Cisco Nexus 5600 Series Hardware Installation Guide
2-10
"Establishing the System Ground" section on page 2-11
The spring clip jaws do not open wide enough to fit directly over the head of the lug screw or
the lug barrel.
Chapter 2 Installing the Cisco Nexus 5600 Series Switches
for installation instructions and
.