Key telephone system interconnection apparatus

Details Key telephone system interconnection apparatus Key telephone system interconnection apparatus

1976-10-12

1978-06-20

Claffy, Kathleen H.

179 98, H04Q 102

Patent

active

040963594

ABSTRACT:
Disclosed is apparatus for providing a completely flexible arrangement for relating key telephone lines to stations and to provide special features as desired to selected stations and lines. A patch or jack panel is provided with appearances for each station and for each line or trunk. Interconnect or cross connect cords or cables may be secured between stations and lines to provide line appearances at the respective stations for each cross-connection made. Further provisions are made for providing line to station ringing on selected lines under power failure conditions and for providing selected class of service for selected lines. Use of this apparatus allows the interconnection of lines to key appearances to be made as desired on installation of the system, on location. In addition, changes can readily be made in the interconnections whenever such changes are required.

REFERENCES:
patent: 3573373 (1971-04-01), Mullin et al.
patent: 3660611 (1972-05-01), Knollman et al.
patent: 3869582 (1975-03-01), Humphrey et al.
patent: 3980834 (1976-09-01), Akiyama et al.
patent: 4018997 (1977-04-01), Hoover et al.

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