Dell PowerConnect J-EX4500 Hardware Manual page 65

J-EX4500 switch, connect a grounding cable to earth ground and then attach it to the
chassis grounding points.
A pair of threaded inserts (PEM nuts) is provided on the left side towards the rear corner
of the chassis for connecting the switch to earth ground. The grounding points fit UNC
10-32 screws. The grounding points are spaced at 0.625 in. (15.86 mm).
The grounding cable that you provide for a J-EX4500 switch must be 14 AWG (2 mm
minimum 90°C wire, or as permitted by the local code.
Related AC Power Supply in J-EX4500 Switches on page 21
Documentation
Installing a Power Supply in a J-EX4500 Switch on page 88
CAUTION: For installations that require a separate grounding conductor to
the chassis, use the protective earthing terminal on the switch chassis to
connect to earth ground. Before switch installation begins, a licensed
electrician must attach a cable lug to the grounding cables that you supply.
See "Connecting Earth Ground to a J-EX Series Switch" on page 99. A cable
with an incorrectly attached lug can damage the switch.
NOTE: Grounding is provided to an AC-powered switch when you plug its
power supplies into grounded AC power receptacles.
WARNING: The switch is pluggable type A equipment installed in a
restricted-access location. It has a separate protective earthing terminal
provided on the chassis in addition to the grounding pin of the power supply
cord. This separate protective earthing terminal must be permanently
connected to earth ground for installations that require a separate grounding
conductor to the chassis.
Chapter 3: Component Specifications
2
),
49