Connecting Earth Ground To An Ex4500 Switch - Juniper EX2200 Series Hardware Manual

Connecting Earth Ground to an EX4500 Switch

Copyright © 2011, Juniper Networks, Inc.
Secure the grounding lug to the protective earthing terminal with the washers and
3.
screws.
Dress the grounding cable and ensure that it does not touch or block access to other
4.
switch components and that it does not drape where people could trip over it.
The protective earthing terminal is located on the left rear of the chassis in an EX4500
switch.
An AC-powered EX Series switch chassis gets 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. See AC Power Cord Specifications for an
EX4500 Switch.
NOTE: If you plan to mount your switch on four posts of a rack or cabinet,
mount your switch in the rack or cabinet before attaching the grounding lug
to the switch. See Mounting an EX4500 Switch on Four Posts in a Rack or
Cabinet
Ensure that you have the following parts and tools available:
Grounding cable for your EX4500 switch—The grounding cable must be 14 AWG
(2 mm²), minimum 90°C wire, or as permitted by the local code.
Grounding lug for your grounding cable. See Grounding Cable and Lug Specifications
for EX4500 Switches.
Washers and 10-32x.25-in. screws to secure the grounding lug to the protective earthing
terminal
Phillips (+) screwdriver, number 2
To connect earth ground to an EX4500 switch:
Connect one end of the grounding cable to a proper earth ground, such as the rack in
1.
which the switch is mounted.
Place the grounding lug attached to the grounding cable over the protective earthing
2.
terminal. See Figure 45 on page
NOTE: If you mounted the switch on four posts of a rack using the
four-post rack-mount kit, the protective earthing terminal on the switch
is accessible through the slot on the left rear bracket.
The protective earthing terminal on the switch mounted on four posts is
available only if the rack is 27.5 in. deep through 30.5 in. deep for a switch
mounted flush with the rack front and 29.5 in. deep through 32.5 in. deep
for a switch mounted 2 in. recessed from the rack front.
Chapter 10: Connecting the Switch
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