Juniper EX4200-24T

CHAPTER 13
Connecting the Switch to Power
•
Connecting Earth Ground to an EX Series Switch on page 143
•
Connecting AC Power to an EX4200 Switch on page 149
•
Connecting DC Power to an EX4200 Switch on page 152
Connecting Earth Ground to an EX Series Switch
To ensure proper operation and to meet safety and electromagnetic interference (EMI)
requirements, you must connect an EX Series switch to earth ground before you connect
power to the switch. You must use the protective earthing terminal on the switch chassis
to connect the switch to earth ground (see Figure 40 on page 148).
WARNING: The switch is installed in a restricted-access location. It has a
separateprotective earthing terminal on thechassisthat must bepermanently
connected to earth ground to adequately ground the chassis and protect the
operator from electrical hazards.
CAUTION: Before switch installation begins, ensure thata licensed electrician
has attached an appropriate grounding lug to the grounding cable that you
supply. Using a grounding cable with an incorrectly attached lug can damage
the switch.
This topic describes:
•
Parts and Tools Required for Connecting an EX Series Switch to Earth
Ground on page 143
•
Special Instructions to Follow BeforeConnecting Earth Ground to a Switch on page 146
•
Connecting Earth Ground to an EX Series Switch on page 148
Parts and Tools Required for Connecting an EX Series Switch to Earth Ground
Table 59 on page 144 lists the earthing terminal location, grounding cable requirements,
grounding lug specifications, screws and washers required, and the screwdriver needed
143Copyright © 2017, Juniper Networks, Inc.