Two-wire line alarm and monitor circuit for a telephone line

Details Two-wire line alarm and monitor circuit for a telephone line Two-wire line alarm and monitor circuit for a telephone line

H - Electricity

04

M

340/77, 344/1.4

H04M 1/24 (2006.01)

Patent

CA 1133603

Abstract of the Disclosure An alarm and monitor circuit for indicating line driver load impedance changes by detection of the corresponding line driver currents above and below a predetermined normal level. The high current monitor circuit includes means to limit power delivery to the load when such high currents are detected.

311820

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