Arrangement for subscriber circuits utilizing digital time divis

Details Arrangement for subscriber circuits utilizing digital time divis Arrangement for subscriber circuits utilizing digital time divis

1979-08-30

1982-01-05

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 56, H04J 312

Patent

active

043097669

ABSTRACT:
Subscriber circuits used for connecting analog operated subscriber line to digital switching networks have analog circuit portions which are individually associated with the individual subscriber lines and also have circuits for coding and decoding signals. Digital control and interface circuits are commonly associated with a plurality of such subscriber circuits and in the present invention the analog circuit portions which are associated with a sub-group of a subscriber line and circuit for coding and decoding are combined into sub-modules such as printed circuit boards which are mounted on a common carrier plate at a spacing from the main portion of the plate so that the carrier plate forms the circuit carrier for the paths and components of the digital portion of the circuits.

REFERENCES:
patent: 3916118 (1975-10-01), O'Neill
patent: 4104488 (1978-08-01), Weir et al.
patent: 4143242 (1979-03-01), Horiki
patent: 4146749 (1979-03-01), Pepping et al.
Telecom Report, Mar. 1979, pp. 174-183, Suckfull, "Architectur Einer Neuen Linie Digitaler Offentlicher Fernsprechvermittlung-en".
International Switching Symposium, Oct. 1976, pp. 423-3-1-432-3-8, Kumashiro et al., "KC260 EPABX A Small sized Stored Program Controlled Electronic Switching System".
Bell Labs Record, Feb. 1976, pp. 34-38, Chevalier et al., "Packaging Electronic Circuits for the Future".
Conference Record 1978 International Conference on Communications, Jun. 1978, pp. 37.2.1-37.2.5, Moridera et al., "Fetex Digital Switching System for Central Office".
IEEE Trans. on Parts, Hybrids & Packaging, Jun. 1972, pp. 51-58, Orr et al., "Thin Film Hybrid Integrated Circuits for Communication Systems".
IBM Technical Disclosure Bulletin, Feb. 1978, pp. 3399-3400, Gedney et al., "Low Cost Integrated Circuit".
Wescon Conference Record, Sep. 1977, pp. 15/3-1-15/3-7, Burch et al., "Ceramic Chip Carrier-The New Standard in Packaging".
The International Symposium on Subscriber Loops & Services, Mar. 1978, 20-24., pp. 182-184, J. R. Sergo, "DDS Quad Line Circuit", Atlanta, USA.
NTC '77 Conference Record, Band 3, Dec. 1977, pp. 39:5-1-39:5-7, C. G. Svala, "DDS-1, A Digital Local Switching System with Remote Line Switches.
1978 International Zurich Seminar on Digital Communncations, Mar. 1978, pp. C6.1-C6.6, Israel et al., "Subscriber Line Equipment Techniques".
1978 International Zurich Seminar on Digital Comm., Mar. 1978, pp. A2.1-A2.5, White, "Options and Progress in Digital Local Switching".

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