•
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:
1. Connect one end of the grounding cable to a proper earth ground, such as the rack in
which the switch is mounted.
2. Place the grounding lug attached to the grounding cable over the protective earthing
terminal. See Figure 32 on page 83.
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.
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 EX6210 Switch
The protective earthing terminal is located on the rear of the chassis on the lower left
side in an EX6210 switch. See Figure 34 on page 88 for the location of the earthing terminal
on an Ex6210 switch.
87Copyright © 2011, Juniper Networks, Inc.
Chapter 11: Connecting the Switch
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