05381554 is referenced by 112 patents and cites 13 patents.

There is a provided a system of one or more uninterrupted power supply (UPS) units, each UPS unit having distributed processing system and a network interface for interfacing with a local area network, the network providing a communication between the one or more UPS devices and also to loads powered by such UPS devices. In one embodiment having a plurality of UPSs, one of the UPSs is a main upstream UPS which is in communication with each down stream UPS to which it supplies supplemental power and which in turn supply power to respective loads. In another embodiment the UPS supplies power to a plurality of prioritized loads, and is in communication with each such load over a network and also controls power distribution to each such load through a power distribution module (PDM).

Title
Uninterrupted power supply (UPS) system interfacing with communications network
Application Number
980650
Publication Number
5381554
Application Date
February 15, 1994
Publication Date
January 10, 1995
Inventor
G John Messer
Raleigh
NC, US
Dale R Langer
Raleigh
NC, US
Agent
Woodcock Washburn Kurtz Mackiewicz & Norris
Assignee
Exide Electronics
NC, US
IPC
G06F 1/32
G06F 11/00
G11C 7/00
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