NOTE: The protective earthing terminal on an EX4200 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.
Figure 33: Connecting the Grounding Lug to an EX4200 Switch on a
Four-Post Rack
3. Secure the grounding lug to the protective earthing terminal with screws.
4. Dress the grounding cable and ensure that it does not touch or block access to other
switch components and that it does not drape where people could trip over it.
Connecting Earth Ground to an EX4500 Switch
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:
Copyright © 2011, Juniper Networks, Inc.86
Complete Hardware Guide for EX3300 Ethernet Switches
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