Chapter 11

Connecting the Switch
Connecting Earth Ground to an EX Series Switch on page 141
Connecting AC Power to an EX3200 or EX4200 Switch on page 146
Connecting DC Power to an EX3200 or EX4200 Switch on page 148
Connecting an EX Series Switch to a Network for Out-of-Band
Management on page 152
Connecting an EX Series Switch to a Management Console on page 153
Connecting an EX Series Switch to a Modem on page 155
Connecting a Fiber-Optic Cable to an EX Series Switch on page 159

Connecting Earth Ground to an EX Series Switch

To meet safety and electromagnetic interference (EMI) requirements and to ensure
proper operation, you must connect the switches to earth ground before you connect
them to power.
For installations that require a separate grounding conductor to the chassis, use the
protective earthing terminal on the EX Series switch chassis to connect to the earth
ground (see Figure 52 on page 141).
Figure 52: Connecting a Grounding Cable to an EX Series Switch
Before you connect earth ground to the protective earthing terminal of an EX Series
switch, ensure that a licensed electrician has attached an appropriate grounding lug
to the grounding cable.
Connecting Earth Ground to an EX Series Switch 141