Juniper Networks EX4200 - Manual (Page 170)

Figure 53: Connecting the Grounding Lug to an EX4200 Switch on a Four-Post Rack
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.
Before you connect earth ground to the protective earthing terminal on an EX8208
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:
144 ■ Connecting Earth Ground to an EX8208 Switch
Complete Hardware Guide for EX3200 and EX4200 Ethernet Switches