Juniper EX4500 Series

CAUTION: Using a grounding cable with an incorrectly attached lug can damage the
switch.
Follow the procedure that applies to your switch:
■ Connecting Earth Ground to an EX2200 or EX3200 Switch on page 84
■ Connecting Earth Ground to an EX4200 Switch on page 84
■ Connecting Earth Ground to an EX4500 Switch on page 86
■ Connecting Earth Ground to an EX8208 Switch on page 87
■ Connecting Earth Ground to an EX8216 Switch on page 88
Connecting Earth Ground to an EX2200 or EX3200 Switch
The protective earthing terminal is located on the rear of the chassis in an EX2200
switch and in an EX3200 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. For EX2200 switches, see
AC Power Cord Specifications for EX2200 Switches. For EX3200 switches, see AC
Power Cord Specifications for EX3200 and EX4200 Switches.
Ensure that you have the following parts and tools available:
■ Grounding cable for your switch—The grounding cable must be minimum 14 AWG
(2 mm²), minimum 90°C wire, or as permitted by the local code.
■ Grounding lug for your grounding cable
■ 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 EX2200 or EX3200 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.
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 EX4200 Switch
The protective earthing terminal is located on the left side of the chassis in an EX4200
switch.
84 ■ Connecting Earth Ground to an EX2200 or EX3200 Switch
Complete Hardware Guide for EX4500 Ethernet Switches