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To install a fan tray in an EX3200 or EX4200 switch, follow instructions in “Installing a
Fan Tray in an EX3200 or EX4200 Switch” on page 133. To remove a fan tray from an
EX3200 or EX4200 switch, follow instructions in “Removing a Fan Tray froman EX3200
or EX4200 Switch” on page 176.
To install an uplink module in an EX3200 or EX4200 switch, follow instructions in
“Installingan UplinkModulein anEX3200 or EX4200Switch”on page 135.To removean
uplink module from an EX3200 or EX4200 switch, follow instructions in “Removing an
Uplink Module from an EX3200 or EX4200 Switch” on page 177.
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 137. To remove
an SFP,SFP+, or XFP transceiverfrom an EX3200 or EX4200 switch,follow instructions
in “Removing a Transceiver from an EX Series Switch” on page 179.
Related Topics Cooling System and Airflow in an EX3200 Switch on page 31•
• Cooling System and Airflow in an EX4200 Switch on page 33
• Power Supply in EX3200 and EX4200 Switches on page 27
• Uplink Modules in EX3200 and EX4200 Switches on page 34
• Optical Interface Support in EX3200 and EX4200 Switches on page 43
Removing a Power Supply from an EX3200 or EX4200 Switch
ThepowersupplyinEX3200andEX4200switchesisahot-removableandhot-insertable
field-replaceable unit (FRU): You can remove and replace it without powering off the
switch or disrupting switch functions.
Ensure that you have the following parts and tools available:
•
Phillips (+) screwdriver, number 2
•
An antistatic bag or an antistatic mat
CAUTION: Do not leave the power supply slot empty for a longtime while the switch
is on. The power supply must remain in the chassis for proper airflow.
ToremoveapowersupplyfromanEX3200orEX4200switch(seeFigure67onpage175):
1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
2. Disconnect power to the switch by performing one of the following:
•
AC power supply—If the AC power source outlet has a power switch, set it to the
OFF (0) 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.
•
DC power supply—Switch the circuit breaker on the panel board that services the
DC circuit to the OFF position.
Copyright ©2010,Juniper Networks,Inc.174
CompleteHardwareGuide forEX3200 andEX4200 EthernetSwitches