• Connecting AC Power to an EX4300 Switch
• Connecting DC Power to an EX4300 Switch
• Connecting AC Power to an EX4500 Switch
• Connecting DC Power to an EX4500 Switch
• Connecting AC Power to an EX4550 Switch
• Connecting DC Power to an EX4550 Switch
• Connecting AC Power to an EX6200 Switch
• Connecting DC Power to an EX6200 Switch
• Connecting AC Power to an EX8200 Switch
• Connecting DC Power to an EX8200 Switch
• Connecting AC Power to an EX9204 Switch
• Connecting DC Power to an EX9204 Switch
• Connecting AC Power to an EX9208 Switch
• Connecting DC Power to an EX9208 Switch
• Connecting AC Power to an EX9214 Switch
• Connecting DC Power to an EX9214 Switch
• General Safety Guidelines and Warnings on page 243
• Grounded Equipment Warning on page 258
Connecting AC Power to an EX4200 Switch
The power supply in an EX4200 switch is a hot-removable and hot-insertable
field-replaceable unit (FRU) located on the rear panel: You can remove and replace it
without powering off the switch or disrupting switch functions.
Before you begin connecting AC power to an EX4200 switch:
•
Ensure that you have connected the switch chassis to earth ground.
CAUTION: Before you connect power to the switch, a licensed electrician
must attach a cable lug to the grounding and power cables that you supply.
A cable with an incorrectly attached lug can damage the switch (for
example, by causing a short circuit).
To meet safety and electromagnetic interference (EMI) requirements and
to ensure proper operation, you must connect EX4200 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 switch chassis to connect to the earth ground. For
instructions on connecting earth ground, see “Connecting Earth Ground to
149Copyright © 2017, Juniper Networks, Inc.
Chapter 13: Connecting the Switch to Power
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