| 摘要 |
A lighting system is disclosed in which an Ethernet computer network is used to provide power to one or more light sources that are connected directly to the Ethernet. The light sources may include LEDs, fluorescent lamps, HID lamps, and/or exit signs. The exit signs may incorporate cameras. By providing power to the light sources via the Ethernet, a separate connection to a power supply for the light is not necessary.
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