Dell PowerConnect J-EX4500, Hardware Manual

Page: 116 / 226

CAUTION: Using a grounding cable with an incorrectly attached lug can
damage the switch.
Follow this procedure.
• Connecting Earth Ground to a J-EX4500 Switch on page 100
Connecting Earth Ground to a J-EX4500 Switch
The protective earthing terminal is located on the left rear of the chassis in a J-EX4500
switch.
An AC-powered J-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 a
J-EX4500 Switch” on page 65.
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 a J-EX4500 Switch on Four Posts in a Rack or
Cabinet” on page 81
Ensure that you have the following parts and tools available:
• Grounding cable for your J-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 J-EX4500 Switches” on page 48.
• 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 a J-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 41 on page 99.
100
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