Juniper EX9214 Hardware Manual page 184

Table 59: Special Instructions to Follow Before Connecting Earth Ground to an EX Series Switch
(Continued)
Switch Special Instructions
EX4200, EX4500, If you plan to mount your switch on four posts of a rack or cabinet, mount your switch in
and EX4550 the rack or cabinet before attaching the grounding lug to the switch.
NOTE: The protective earthing terminal on switches 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 51: Connecting the Grounding Lug to a Switch Mounted on Four Posts of
a Rack
1
2
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.)
Connecting Earth Ground to an EX Series Switch
To connect earth ground to an EX Series switch:
1. Verify that a licensed electrician has attached the cable lug to the grounding cable.
Protective earthing terminal
—
Side mounting-rail
—
Figure 51 on page 173.
3 Grounding lug
—
4 Rear mounting-blade
—
173