Power-saving device for power over ethernet and control method therefor

A power-saving device for use with a Power-over-Ethernet technology, the power-saving device transmitting electrical power and data to at least one powered device, the power-saving device comprising:

• at least one connecting port electrically connected with the powered device for transmitting electrical power and data to the powered device;
• a time generator for generating time information;
• a storage medium for storing a power schedule table;
• a power control unit electrically connected with the connecting port for transmitting electrical power to the connecting port;
• and
• a micro controller connected with the time generator, the storage medium and the power control unit, wherein according to the power schedule table read out from the storage medium by the micro controller and the time information generated by the time generator, a power-outputting status of the power control unit is controlled by the micro controller.

A power-saving method for use with a Power-over-Ethernet system, comprising steps of:

• reading out a power schedule table;
• reading time information;
• and
• controlling a power-outputting status of a power control unit of the Power-over-Ethernet system according to the power schedule table and the time information.