Switching system having a central controller for accessing indiv

Details Switching system having a central controller for accessing indiv Switching system having a central controller for accessing indiv

1976-10-04

1978-02-28

Olms, Douglas W.

Boots, shoes, and leggings

364200, H04M 322

Patent

active

040769704

ABSTRACT:
A switching system for connecting any one of a plurality of electrical circuits to any one of a plurality of test positions, wherein a central controller including a microprocessor directs, in a pre-programmed manner, all necessary switching functions. In the preferred embodiment, the electrical circuits are telephone circuits and the test positions include test ports positioned in various locations around a central office so that any of the telephone circuits can be accessed for testing from any of the test ports. The controller communicates with each of the test ports and controls switching units one at a time over a common control bus.

REFERENCES:
patent: 3250863 (1966-05-01), Pearce
patent: 3299220 (1967-01-01), Wedmore
patent: 3623010 (1971-11-01), Burkhalter
patent: 3652804 (1972-03-01), Comella
patent: 3729715 (1973-04-01), Buedel
patent: 3829627 (1974-08-01), Short et al.
"No. 1 EAX" GTE Automatic Electric Technical Journal, Oct. 1972, pp. 163-176.
Tele, "Centralized Supervision and Fault Location by Computer", 1973, pp. 23-33.
"SCC: Remote Control and Maintenance of Switching Offices", Bell Lab. Record, vol. 52, No. 7, pp. 206-211, July-Aug., 1974, TT Items, No. 5.
TTI Practice M2000-041-03; Sept. 1975.
TTI Practice M2000-061-01; Aug. 1975.
TTI Practice M2000-041-01; Feb. 1975.
TTI Publication No. M2110-061-01; Oct. 1975.

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