Interface for in band SCPC supervisory and signalling system

Details Interface for in band SCPC supervisory and signalling system Interface for in band SCPC supervisory and signalling system

1976-05-14

1978-01-10

Olms, Douglas W.

179 15BZ, H04B 346

Patent

active

040681041

ABSTRACT:
An in band single channel per carrier supervisory and signalling apparatus and method is disclosed for satellite communications. The apparatus includes a near supervisory interface located at a transmitting terminal, and a far supervisory interface located at a receiving terminal. The near supervisory interface responds to either dc or single tone conventional signalling on a sending telephone line and formats hook status and dial pulse transitions for in band transmission. The far supervisory interface responds to the messages, as formatted by the near supervisory interface and, re-formats the information thus communicated for the receiving telephone system.

REFERENCES:
patent: 3484557 (1969-12-01), Ruthroff
patent: 3912875 (1975-10-01), Katz
patent: 3946315 (1976-03-01), Tustison
patent: 3986120 (1976-10-01), Edstrom et al.

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