Premises security system with power over Ethernet having an uninterruptible power supply and uninterruptible Internet connectivity

A system, comprising:

• a primary power supply;
• a rechargeable power supply;
• a power over Ethernet injector attached to said primary power supply and said rechargeable power supply;
• a plurality of electronic premises security system devices connected to the injector so as to power the premises security system devices;
• at least one wireless connectivity device of a plurality of wireless connectivity devices that provides Internet connectivity to the plurality of electronic premises security system devices, said at least one wireless connectivity device connected to the injector so as to power said at least one wireless connectivity device;
• a primary power monitoring circuit that detects variation in primary power voltage from said primary power supply and generates a primary power fault signal when the variation exceeds a primary power validity voltage range;
• a power source control circuit that redirects power provided to the premises security system devices and said at least one wireless connectivity device from primary power to the rechargeable power supply based on the primary power fault signal so as to prevent loss of data;
• an Internet connectivity monitoring circuit that detects variation in Internet connectivity of the premises security system devices and generates an Internet connectivity fault signal when the variation in Internet connectivity exceeds a connection fault threshold;
• and
• an Internet wireless connectivity control circuit that redirects Internet connectivity provided to the premises security system devices from said at least one wireless connectivity device and another wireless connectivity device of said plurality of wireless connectivity devices responsive to at least one of the primary power fault signal and the Internet connectivity fault signal.