Removing An Ac Power Supply From An Ex9214 Switch - Juniper EX9214 Hardware Manual

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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 Electrostatic discharge (ESD) damage. See
Electrostatic 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 field-replaceable unit
(FRU) installed in the rear panel.
CAUTION: Before you remove a power supply, ensure that you have power supplies
sufficient to power the switch that remains in the chassis. See
EX9200 Switch Components" on page
CAUTION: Do not leave the power supply slot empty for a long time while the switch is
operational. Either replace the power supply unit promptly or install a cover panel over
the empty slot.
NOTE: After powering off 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 time while the switch is
operational. 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
1. Switch off the dedicated customer site circuit breaker for the power supply and remove the power
cord from the AC power source. Follow the instructions for your site.
2. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
.
57.
"Power Requirements for
Figure 67 on page
215):
Prevention of
213

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