Figure 35: Connecting The Grounding Lug To A Switch Mounted On Four Posts Of - Juniper EX4500 Hardware Manual

Table 63: Special Instructions to Follow Before Connecting Earth Ground to a Switch (continued)
Switch Special Instructions
EX4200 NOTE: Some early variants of EX4200 switches for which the Juniper Networks model number on the label
next to the protective earthing terminal is from 750-021xxx through 750-030xxx require 10-24x.25 in. screws.
NOTE: The protective earthing terminal on an EX4200 switch mounted on four posts of a rack is accessible
through the slot on the left rear bracket only if the rack is 27.5 in. (69.85 cm) through 30.5 in. (77.47 cm)
deep for a switch mounted flush with the rack front and 29.5 in. (74.93 cm) through 32.5 in. (82.55 cm)
deep for a switch mounted 2 in. (5.08 cm) recessed from the rack front. See
Figure 35: Connecting the Grounding Lug to a Switch Mounted on Four Posts
of a Rack
NOTE: The brackets must be attached to the chassis before the grounding lug is attached. (The brackets
are shown pulled away from the chassis so that the protective earthing terminal is seen.)
EX4300 NOTE: The protective earthing terminal on an EX4300 switch mounted on four posts of a rack is accessible
through the slot on the left rear bracket only if the rack is 27.5 in. (69.85 cm) through 30.5 in. (77.47 cm)
deep for a switch mounted flush with the rack front and 29.5 in. (74.93 cm) through 32.5 in. (82.55 cm)
deep for a switch mounted 2 in. (5.08 cm) recessed from the rack front.
EX4500 NOTE:
or cabinet before attaching the grounding lug to the switch. See
Posts in a Rack or Cabinet" on page
NOTE: The protective earthing terminal on an EX4500 switch mounted on four posts of a rack is accessible
through the slot on the left rear bracket only if the rack is 27.5 in. (69.85 cm) through 30.5 in. (77.47 cm)
deep for a switch mounted flush with the rack front and 29.5 in. (74.93 cm) through 32.5 in. (82.55 cm)
deep for a switch mounted 2 in. (5.08 cm) recessed from the rack front.
EX4550 NOTE: The protective earthing terminal on an EX4550 switch mounted on four posts of a rack is accessible
through the slot on the left rear bracket only if the rack is 27.5 in. (69.85 cm) through 30.5 in. (77.47 cm)
deep for a switch mounted flush with the rack front and 29.5 in. (74.93 cm) through 32.5 in. (82.55 cm)
deep for a switch mounted 2 in. (5.08 cm) recessed from the rack front.
EX8216 NOTE: Only one of the two protective earthing terminals needs to be permanently connected to earth
ground.
Copyright © 2017, Juniper Networks, Inc.
1— Protective earthing terminal
2— Side mounting-rail
If you plan to mount your switch on four posts of a rack or cabinet, mount your switch in the rack
129.
Chapter 13: Connecting the Switch to Power
Figure 35 on page
3— Grounding lug
4— Rear mounting-blade
"Mounting an EX4500 Switch on Four
139.
139