Lantronix
SM24TBT2DPB Install Guide
33845 Rev. B
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SM24TBT2DPB-2XPS Power Supply Operating Mode Settings
The SM24TBT2DPB ships with one PS-ACDC-1200 power supply, which lets it supply up to 90 Watts per port.
The SM24TBT2DPB with a second PS-ACDC-1200 power supply added, or SM24TBT2DPB-2XPS if shipped
with the second power supply included, can provide full PoE++ output on all 24-ports with its two hot-swappable
PS-ACDC-1200 power supplies.
When Power Supply Operating Mode = Redundant Mode at Configuration > System > Power Information:
With Power Supply Operating Mode configured as “Redundant” Mode, the two power supplies are mutually
redundant. If one of the power supplies fails, the other power supply can keep the system working normally.
The PoE maximum output power of the two power supplies cannot be aggregated. The PoE maximum output
Power Budget in “Redundant” Mode is equal to the PoE Budget of a single power supply.
With Power Supply Operating Mode set to Boost Mode:
a
. When Power Supply Operating Mode is ser to “Boost” at the Configuration > System > Power Information
page, the power supply redundancy function will be disabled. If one of the power supplies fails, and the PoE
power consumption is over the other power supply’s Max. PoE output power capability, the power supply will
overload and shutdown this PoE switch.
b
. The PoE maximum output power of the two power supplies can be aggregated. The PoE Max. PoE output
Power Budget in Boost Mode is equal to the Power Supply A + Power Supply B.
SM24TBT2DPB-2XPS Power Supply Operating Mode = Redundant Mode (default) at Configuration > System >
Power Information: