Connecting Earth Ground To An Ex Series Switch - Juniper EX4500 Hardware Manual

Table 44: 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 the
and EX4550 rack or cabinet before attaching the grounding lug to the switch.
NOTE:
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
1
2
NOTE:
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.
2. Connect one end of the grounding cable to a proper earth ground, such as the rack in which the switch
is mounted.
The protective earthing terminal on switches mounted on four posts of a rack is
Figure 35 on page 127.
Protective earthing terminal
—
Side mounting-rail
—
The brackets must be attached to the chassis before the grounding lug is attached. (The
3 Grounding lug
—
4 Rear mounting-blade
—
127