Juniper EX4500-40F-BF, Complete Hardware Manual, Page: 201 / 294

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.
6.
Install the bottom replacement power supply (see Step 6 in “Replacing the Power
Supply in the Top Slot” on page 180 ).
7.
Connect power to the bottom replacement power supply (see Step 7 in “Replacing
the Power Supply in the Top Slot” on page 180 ).
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
Figure 60 on page 180 ) are lit steadily green.
Related
Documentation
AC Power Supply in EX4500 Switches on page 27
•
•
AC Power Supply LEDs in EX4500 Switches on page 29
Removing a DC 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 “Prevention of Electrostatic
Discharge Damage” on page 250 .
Ensure that you have the following parts and tools available to remove the power supply
from the switch chassis:
• Electrostatic discharge (ESD) grounding strap
•
Phillips (+) screwdriver, number 2
•
An antistatic bag or an antistatic mat
• Replacement power supply or a cover panel for the power supply slot
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 a power supply from the switch (see Figure 64 on page 184 ):
1.
Place the antistatic bag or the antistatic mat on a flat, stable surface.
2.
Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and
connect the strap to the ESD point on the chassis.
183 Copyright © 2015, Juniper Networks, Inc.
Chapter 14: Removing Switch Components