Network Switch lnstallation Guide 47
Components Replacement
Replacing the Power Supply
NOTE:
• InformationbelowisnotapplicableforT1048-P02Seriesmodels.
• When installing a new PSU, make sure it has the same airow direction as the fan
modules and the other power supply.
• For switches that only using a single power supply, removing the power supply
will cause the switch to automatically shutdown.
CAUTION
The PSUs can be replaced without the use of special tools. Before replacing any of the PSUs,
verify the status of the PSU to determine if there is a need for replacement.
NOTE:
• Intheeventofapowersupplyfailure,youcanreplacethedefectiveunitwithoutpoweringdownthe
system,providedthatthereisatleastonepowersupplymustconnecttoapowersource.
To replace the power supply unit, do the following:
T3048-LY8 Switch
1 Disconnect the AC power cord of the PSU that you want to remove.
2 Press the plug retainer and then pull the handle to slide the PSU away from the chassis.
AC
DC
NOTE:
• TakenoteofthepartnumberoftheremovedPSU.
• Whenmakingorderforreplacementmodules,makesurethatthepartnumberofthenewPSUis
thesameasthepartnumberoftheremovedPSU.
3 Ensure the power supply unit is correctly oriented, then install the new PSU into the chassis
until it is rmly seated.
4 Connect the AC power cord to power on the switch.