Current supply system for subscriber line circuits

Details Current supply system for subscriber line circuits Current supply system for subscriber line circuits

H - Electricity

04

M

379/56, 379/63,

H04M 19/00 (2006.01) H04M 1/76 (2006.01)

Patent

CA 1042122

ABSTRACT OF THE DISCLOSURE A current supply system for terminal devices in which line circuits are divided into groups in accordance with a line impedance between an exchange or switching network and respective terminal devices or telephone sets, and a voltage is applied to res- pective groups of line circuits which corresponds to a current matching the line impedance for respec- tive groups of line circuits.

246538

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