POWER OVER ETHERNET EMERGENCY LIGHTING SYSTEM

摘要

A system for providing power over Ethernet emergency lighting is disclosed. The system includes a rechargeable battery pack that is charged without interfering with data signals present on a power over Ethernet link that provides normal lighting. The system includes a power loss monitor for monitoring the presence of normal lighting power present on a power over Ethernet link without interference.

主权项

1. A power over Ethernet emergency luminaire, comprising:
a first power over Ethernet input connectable to a power over Ethernet (“POE”) port link segment; a rechargeable emergency battery pack having a battery charger, a rechargeable battery and an emergency LED driver connected to a first input of a relaying device having a first and a second input alternatively switchable to an output; a normal lighting LED driver connected to the second input of the relaying device; an LED lamp connected to the output of the relaying device; and a power loss monitor capable of detecting a loss of power from the normal lighting LED driver, and connected to a controller such that when power is lost at the normal lighting LED driver, the first input of the relaying device is connected to the LED lamp, but when the normal LED driver has power, the second input of the relaying device is connected to the LED lamp.