Maintaining The Ex4600 Switch Power System; Removing A Power Supply From An Ex4600 Switch; Prevention Of Electrostatic Discharge Damage" On Page; From An Ex4600 Switch - Juniper EX4600 Hardware Manual

EX4600 Switch Hardware Guide

Maintaining the EX4600 Switch Power System

Removing a Power Supply from an EX4600 Switch

90
Removing a Power Supply from an EX4600 Switch on page 90
Installing a Power Supply in an EX4600 Switch on page 91
The EX4600 is shipped from the factory with two power supplies. Each power supply is
a hot-removable and hot-insertable field-replaceable unit (FRU) when the second power
supply is installed and running. You can install replacement power supplies in the two
slots next to the fan modules without powering off the switch or disrupting the switching
function.
Before you remove a power supply from an EX4600 switch, ensure that you have taken
the necessary precautions to prevent electrostatic discharge (ESD) damage (see

"Prevention of Electrostatic Discharge Damage" on page

Ensure that you have the following parts and tools available to remove a power supply

from an EX4600 switch:

ESD grounding strap
Antistatic bag or an antistatic mat
Phillips (+) screwdriver, number 2 (DC power supply)
CAUTION: Replace the power supply with a new power supply within 1 minute
of removal to prevent chassis overheating.
To remove a power supply from an EX4600 switch (see
Place the antistatic bag or the antistatic mat on a flat, stable surface.
1.
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
2.
point on the chassis.
NOTE: If only one power supply is installed in your EX4600 switch, you
need to power off the switch before removing the power supply. See
"Powering Off an EX4600 Switch" on page
Disconnect power to the switch:
3.
AC power supply—If the AC power source outlet has a power switch, set it to the
OFF (O) position. If the AC power source outlet does not have a power switch, gently
pull out the male end of the power cord connected to the power source outlet.
143).
Figure 39 on page 91):
105.
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