H - Electricity – 04 – B
Patent
H - Electricity
04
B
340/71, 340/79
H04B 3/54 (2006.01) H02J 13/00 (2006.01)
Patent
CA 1177927
48,772 ABSTRACT OF THE DISCLOSURE A load management terminal is utilized as an end device in a utility's distribution network communication system. The distribution network carries electrical power as well as communication signals. The load management terminal is comprised of a power line coupling unit for connecting the load management terminal to the power distribution network. A signal receiver and conditioning unit produces a command signal in response to a received communication signal. A solid state memory contains preprogrammed instructions and data. A microprocessor performs load control functions in response to the command signal. The microprocessor additionally produces a diag- nostic signal being in a low state in response to one of the preprogrammed instructions and being in a high state in response to another of the preprogrammed instructions. A reset circuit monitors the diagnostic signal and resets the microprocessor in response to irregularities in the diagnostic signal thereby greatly increasing the reliabil- ity of the load management terminal.
400012
Oldham And Company
Westinghouse Electric Corporation
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