Circuit for sensing telephone line conditions

Details Circuit for sensing telephone line conditions Circuit for sensing telephone line conditions

H - Electricity

04

M

H04M 1/72 (2006.01) H04M 1/82 (2006.01)

Patent

CA 2136562

A circuit for sensing telephone line conditions, comprising: high impedance termination means across the telephone line; means for accumulating charge through said high impedance termination means; and electrical isolator means intermediate said means for accumulating charge and voltage detecting means.

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