Juniper Networks EX4200 - Manual (Page 198)

an EX3200 or EX4200 switch, follow instructions in “Removing a Fan Tray from an
EX3200 or EX4200 Switch” on page 174.
To install an uplink module in an EX3200 or EX4200 switch, follow instructions in
“Installing an Uplink Module in an EX3200 or EX4200 Switch” on page 133. To remove
an uplink module from an EX3200 or EX4200 switch, follow instructions in “Removing
an Uplink Module from an EX3200 or EX4200 Switch” on page 175.
To install an SFP, SFP+, or XFP transceiver in an EX3200 or EX4200 switch, follow
instructions in “Installing a Transceiver in an EX Series Switch” on page 136. To
remove an SFP, SFP+, or XFP transceiver from an EX3200 or EX4200 switch, follow
instructions in “Removing a Transceiver from an EX Series Switch” on page 177.
Related Topics ■ Cooling System and Airflow in an EX3200 Switch on page 31
■ Cooling System and Airflow in an EX4200 Switch on page 32
■ Power Supply in EX3200 and EX4200 Switches on page 26
■ Uplink Modules in EX3200 and EX4200 Switches on page 33
■ Optical Interface Support in EX3200 and EX4200 Switches on page 43
Removing a Power Supply from an EX3200 or EX4200 Switch
The power supply in EX3200 and EX4200 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 an EX3200 or EX4200 switch,
ensure that you have taken the necessary precautions to prevent ESD damage (see
“Prevention of Electrostatic Discharge Damage on EX Series Switches” on page 236).
Ensure that you have the following parts and tools available to remove a power supply
from an EX3200 or EX4200 switch chassis:
■ Electrostatic discharge (ESD) grounding strap
■ Phillips (+) screwdriver, number 2
■ An antistatic bag or an antistatic mat
CAUTION: Do not leave the power supply slot empty for a long time while the switch
is on. The power supply must remain in the chassis for proper airflow.
To remove a power supply from an EX3200 or EX4200 switch (see Figure 67 on
page 173):
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.
172 ■ Removing a Power Supply from an EX3200 or EX4200 Switch
Complete Hardware Guide for EX3200 and EX4200 Ethernet Switches