■ 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 an 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 34 on page 83.
NOTE: If you mounted the switch on four posts of a rack using the four-post
rack-mount kit, the protective earthing terminal on the switch is accessible through
the slot on the left rear bracket.
The protective earthing terminal on the switch mounted on four posts is available
only if the rack is 27.5 in. deep through 30.5 in. deep for a switch mounted flush
with the rack front and 29.5 in. deep through 32.5 in. deep for a switch mounted
2 in. recessed from the rack front.
3. Secure the grounding lug to the protective earthing terminal with screws.
4. Dress the grounding cable and ensure that it does not touch or block access to
other switch components and that it does not drape where people could trip
over it.
Connecting Earth Ground to an EX8208 Switch
The protective earthing terminal is located on the left side of the chassis in an EX8208
switch.
An AC-powered 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 an EX8200 Switch.
Ensure that you have the following parts and tools available:
■ Grounding cable for your EX8208 switch—The grounding cable must be 6 AWG
(13.3 mm²), minimum 60°C wire, or as permitted by the local code.
■ Grounding lug for your grounding cable. See Grounding Cable and Lug
Specifications for EX8200 Switches.
■ Washers and ¼-20x.75-in. screws to secure the grounding lug to the protective
earthing terminal
■ Phillips (+) screwdriver, number 2
To connect earth ground to an EX8208 switch:
Connecting Earth Ground to an EX8208 Switch ■ 87
Chapter 10: Connecting the Switch
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