Connecting Earth Ground To A Qfx10000 - Juniper QFX10008 Hardware Manual

QFX10008 Switch Hardware Guide

Connecting Earth Ground to a QFX10000

164
To ensure proper operation and to meet safety and electromagnetic interference (EMI)
requirements, you must connect the chassis to earth ground before you connect power
to the device.
For installations that require a separate grounding conductor to the chassis, you must
attach a grounding cable and grounding lug to the chassis. There are mounting holes for
the grounding lug on the left-rear side of the chassis to connect to the earth ground (see
Figure 75 on page 166).
NOTE: A ground connection to the protective earthing terminal is not required
for an AC-powered switch. The AC power cords provide adequate grounding
when you connect the power supply in the switch to a grounded AC power
outlet by using the AC power cord appropriate for your geographical location.
If an external ground connection is required, ensure that a licensed electrician has attached
an appropriate grounding lug to the grounding cable you supply. Using a grounding cable
with an incorrectly attached lug can damage the switch.
NOTE: Mount your switch in the rack before attaching the grounding lug to
the switch. For the QFX10008, see
page 152.
For the QFX10016, see Mounting a QFX10016 in a Four-Post Rack Using a
Mechanical Lift.
Ensure that you have the following parts and tools available:
An electrostatic discharge (ESD) grounding strap (provided).
Protective earthing terminal lug (provided).
Grounding cable for your QFX10000 (not provided)—The grounding cable must be
6 AWG (13.3 mm²), minimum 90° C wire, or as permitted by the local code.
Grounding lug for your grounding cable (provided)—This bracket attaches to the lower
left corner of the QFX10000 switch chassis next to PSU 5, providing a protective
earthing terminal for the switch. The grounding lug required is a Panduit LCD6-10A-L
or equivalent.
A Phillips screwdriver to tighten the two screws that are mounted on the chassis.
An AC-powered QFX10000 gains additional grounding when you plug the power supply
in the switch into a grounded AC power outlet by using an AC power cord appropriate
for your geographical location.
To connect earth ground to a QFX10008 or QFX10016 chassis:
"Installing the QFX10008 into a Rack" on
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