Network Switch lnstallation Guide 21
QuantaMesh T3000 Series
Power Supply of T3048-LY8
Equipped with two supply modules, the switch can operate with either one or two power supply
modules. If the switch uses two power supply modules, you can hot-swap one of the PSU during
the operations.
NOTE:
• OnlyonePSUisrequiredtooperateafullyloadedchassis.
There are two types of PSU. Each plug retainer is color-coded to indicate its airow direction.
• Red: indicates front-to-back airow.
• Blue: indicates back-to-front airow.
AC
DC
PSUhandle
ACpowerconnector
Plugretainer
The AC power connector is a standard three-pronged connector. The switch automatically adjusts
its power setting to any supply voltage in the range from 100~240 VAC at 50~60 Hz.
NOTE:
• Verifythateachmodulehasthesameairowdirection.Makesuretheswitchrunswithallofits
powersupplyandfantraymodulestakinginairfromacoldaisleandexhaustingairtothehot
aisle.
Understanding the PSU LED
LED Type LED Color Function
Warning Amber PSU power / Thermal / Fan is not functioning properly.
AC
Green The AC power (AC IN 220 / 110V) is operating normally.
O The AC power (AC IN 220 / 110V) has failed.
DC
Green The DC power (DC OUT +12V) is operating normally.
O The DC power (DC OUT +12V) has failed.