Apparatus and method for automatically detecting defective lines

Details Apparatus and method for automatically detecting defective lines Apparatus and method for automatically detecting defective lines

1993-03-01

1999-09-21

Peeso, Thomas R.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of trunk or long line

370 16, H04L 1200

Patent

active

059563842

ABSTRACT:
An automatic broken cable detecting and switching apparatus and a method therefore. The apparatus includes a transmitting microprocessor for controlling the abnormality of the cable, a transmitting line selecting section for selecting the transmitting lines, a warning display section for displaying a warning upon finding an abnormality, a transmitting data processing section, a transmitting multi-channel demultiplexor for demultiplexing, a transmitting cable connecting section, a multi-core cable, receiving microprocessor, a receiving cable connecting section, a receiving multi-channel multiplexor, a receiving line selecting section, and a receiving signal processing section. When a line is broken during use, the abnormality is immediately searched to find the defective line. Thereafter, a new line is substituted for the thus detected defective line so that data transmission and reception can continue with a minimal delay.

REFERENCES:
patent: 3742154 (1973-06-01), Bidlack et al.
patent: 4306313 (1981-12-01), Baldwin
patent: 4623884 (1986-11-01), Ihara et al.
patent: 5153874 (1992-10-01), Kohno
patent: 5218465 (1993-06-01), Lebby et al.

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