System and method for supplying uninterruptible power to a PoE device

摘要

A system and method for supplying uninterruptible power include a housing, a power supply input, a power source equipment input, a powered device output, an alternative power supply, and a control module. The control module includes a comparator, a switch, and an injector. A PoE powered device connects to the powered device output by Ethernet cable, and power source equipment connects to the power source equipment input. The control module connects the power supply input, the power source equipment input, the powered device output, and the alternative power supply. The power source equipment is powered separate from the power supply input. When the comparator detects sufficient power from the power supply unit, the switch directs power from the power supply input to the powered device. When the comparator detects insufficient power from the power supply unit, the switch instantaneously directs power from the alternative power supply to the powered device.

主权项

1. A system for supplying uninterruptible power, comprising:
a housing; a power supply input disposed within said housing, said power supply input having a PS interface on an outside of said housing; a power source equipment input disposed within said housing, said power source equipment input having a PSE interface on an outside of said housing; a powered device output disposed within said housing, said powered device output having a PD interface on an outside of said housing; an alternative power supply disposed within said housing; a powered device connected to said powered device output by an Ethernet cable; power source equipment connected to said power source equipment input, said power source equipment being powered separate from said power supply input and said alternative power supply; and a control module connected to said power supply input, said power source equipment input, said powered device output, and said alternative power supply, said control module being comprised of an injector means, a comparator means, and a switch means, said injector means connecting said power source equipment input, said power supply input, and said alternative power supply to said powered device output, said comparator means detecting power from said power supply input and to said powered device output, said switch means connecting said power supply input and said alternative power supply to said injector means.