CPC G06F 1/266 (2013.01) [G06F 1/3206 (2013.01); H05B 45/00 (2020.01); H05B 45/3725 (2020.01); H05B 47/17 (2020.01); H05B 47/18 (2020.01)] | 15 Claims |
1. A POE (“power over Ethernet”) emergency lighting system comprising:
a POE input configured to connect to a first POE port link segment, the POE input connected to a POE interface, which is operable to extract DC power from the first POE port link segment, wherein the POE interface is further operable to supply low level DC power to a battery charger, and wherein the POE interface is also operable to supply a relatively higher level of DC power to a normal lighting lamp driver;
a rechargeable battery configured to receive DC power from the battery charger and to supply DC power to a backup lamp driver;
a controller configured to detect a loss of normal operating power and to generate control signals in response to a detection of a loss of the normal operating power;
a switch having a switch output alternatively connected to the backup lamp driver and the normal lighting lamp driver in response to the control signals.
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