Connecting Ac Power To An Ex9253 Switch And Powering On The Switch - Juniper EX9253 Hardware Manual

7. Connect the other end of the grounding cable to a proper earth ground.
8. Dress the grounding cable appropriately. Ensure that it does not touch the switch components, block
the air exhaust and access to the switch components, or drape where people could trip on it.

Connecting AC Power to an EX9253 Switch and Powering on the Switch

Before you begin to connect AC power and power on the switch, ensure that you have the following
parts and tools available:
• An AC power cord with a plug appropriate for your geographical location— provided
• A power cord retainer— provided
• An electrostatic discharge (ESD) grounding wrist strap— not provided
• An external management device— not provided
WARNING: Ensure that you understand how to prevent ESD damage (see
Electrostatic Discharge Damage
Depending on the model, you can use either AC or DC power supplies. The power supplies are hot-
removable and hot-insertable field-replaceable units installed in the rear panel of the switch. You can
replace them without powering off the switch or disrupting switch functions.
CAUTION: Do not mix AC and DC power supplies in the same switch.
NOTE: An AC-powered switch gets additional grounding when you connect the power supply in
the switch to a grounded AC power source outlet by using the power cord.
To connect power to an AC-powered switch (for each power supply):
1. Locate the power cord that has a plug appropriate for your geographic location (see
Power System" on page
2. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end
of the strap to the ESD point on the switch.
3. Insert the coupler end of the power cord into the AC power cord inlet on the power supply.
).
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Prevention of
"EX9253
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