Juniper EX9214 Hardware Guide

Removing an AC Power Supply from an EX9214 Switch
Before you remove an AC power supply from the switch:
• Ensure you understand how to prevent Electrostac discharge (ESD) damage. See Prevenon of
Electrostac Discharge Damage .
Ensure that you have the following parts and tools available to remove an AC power supply from an
EX9214 switch chassis:
• ESD grounding strap
• Phillips (+) screwdrivers, number 1 and 2
• Replacement power supply or a cover panel for the power supply slot
The AC power supply in an EX9214 switch is a hot-removable and hot-insertable eld-replaceable unit
(FRU) installed in the rear panel.
CAUTION: Before you remove a power supply, ensure that you have power supplies
sucient to power the switch that remains in the chassis. See "Power Requirements for
EX9200 Switch Components" on page 57.
CAUTION: Do not leave the power supply slot empty for a long me while the switch is
operaonal. Either replace the power supply unit promptly or install a cover panel over
the empty slot.
NOTE: Aer powering o a power supply, wait for at least 60 seconds before turning it back on.
CAUTION: Do not leave the power supply slot empty for a long me while the switch is
operaonal. Either replace the power supply promptly or install a cover panel over the
empty slot.
To remove an AC power supply from an EX9214 switch (see Figure 67 on page 215):
1. Switch o the dedicated customer site circuit breaker for the power supply and remove the power
cord from the AC power source. Follow the instrucons for your site.
2. Aach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
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Juniper EX9214 Specifications

General

Brand	Juniper
Model	EX9214
Category	Switch
Language	English