Removing An Ac Power Supply From An Ex4500 Switch - Juniper EX4500 Hardware Manual

6. Install the bottom replacement power supply (see Step
Slot" on page 195).
7. Connect power to the bottom replacement power supply (see Step
in the Top Slot" on page
8. To ensure that the replacement power supply is operating normally and both power supplies are
providing redundant power to the switch, verify that both power supply LEDs (see
are lit steadily green.
SEE ALSO
AC Power Supply in EX4500 Switches | 58

Removing an AC Power Supply from an EX4500 Switch

The power supply in EX4500 switches is a hot-removable and hot-insertable field-replaceable unit (FRU):
You can remove and replace it without powering off the switch or disrupting switch functions.
Before you begin removing a power supply from the switch:
Ensure you understand how to prevent ESD damage. See
on page 305.
Ensure that you have the following parts and tools available to remove the power supply from the switch
chassis:
An antistatic bag or an antistatic mat
Replacement power supply or a cover panel for the power supply slot
CAUTION:
is operational. Either replace the power supply promptly or install a cover panel over
the empty slot.
195).
Do not leave the power supply slot empty for a long time while the switch
6 in "Replacing the Power Supply in the Top
7 in "Replacing the Power Supply
"Prevention of Electrostatic Discharge Damage"
Figure 53 on page 195)
199