Telephone power supply arrangement

Details Telephone power supply arrangement Telephone power supply arrangement

H - Electricity

04

M

379/63

H04M 19/00 (2006.01) H04M 19/08 (2006.01)

Patent

CA 1159584

ABSTRACT OF THE DISCLOSURE In a circuit for supplying power to a subscriber telephone device connected to a central office via a two-wire line, which circuit includes a main power supply at the central office and a switching unit at the telephone device actuatable to place the device in operation and to connect an electrical load in circuit across the line, there are additionally provided an auxiliary power supply disposed at the central office and connected across the line, and a circuit connected for selectively connecting the main power supply to the line. - 1 -

371875

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