Patent US3794954A successfully refreshed from Google Patents.
US3794954A
Expired / Lapsed
US
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Improved bus system for interconnecting subsystems of a communication switching system
Assignee: AG Communication Systems Corp
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Filing: 1972-09-11
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Granted: 1974-02-26
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Expires: 1992-09-11
Abstract
Abstract A bus system arranged such that the number of interconnection points between subsystems or modules are substantially reduced so that interfacing costs likewise are reduced. The multiple for continuing the bus is located on an interface connector card which provides an interfacing between the bus cable and the subsystem or module, so that the continuity of the bus can be maintained, regardless of the system status of any subsystem or subsystems. Normally, with other similar bus systems, the continuity of the bus is disrupted if a subsystem is taken out of service. Furthermore, unlike many other bus systems, the bus can be extended in vertical and/or horizontal directions. The bus system also is such that the bus can be easily terminated by simply inserting a terminator card on the interface connector card, or it can be extended by withdrawing the terminator card and plugging in a bus jumper cable with a terminator card at the last module.
Inventors
- 👤 W Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:35
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/70; H01R12/71; H01R12/75; H01R12/72; H01R12/722
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
147 words
A bus system for a communication switching system at least partially formed of a number of mutually compatible modular subsystems comprising, in combination: a. a bus formed of a plurality of lengths of bus cable, each said length of bus cable being of a length to extend at least between two of said subsystems and having connector means on each of the opposite ends thereof; b. an interface connector card affixed to each of the subsystems for providing an interfacing between said bus cable and a subsystem, each of said interface connector cards having thereon complimentary connector means for coupling with said connector means on said bus cables and a multiple for continuing said bus, whereby the continuity of said bus is maintained regardless of the system status of any of the subsystems; and c. terminator means for terminating each of the terminal ends of said bus.
Claim 2
Dependent Claim
147 words
A bus system for a communication switching system at least partially formed of a number of mutually compatible modular subsystems comprising, in combination: a. a bus formed of a plurality of lengths of bus cable, each said length of bus cable being of a length to extend at least between two of said subsystems and having connector means on each of the opposite ends thereof; b. an interface connector card affixed to each of the subsystems for providing an interfacing between said bus cable and a subsystem, each of said interface connector cards having thereon complimentary connector means for coupling with said connector means on said bus cables and a multiple for continuing said bus, whereby the continuity of said bus is maintained regardless of the system status of any of the subsystems; and c. terminator means for terminating each of the terminal ends of said bus.
Claim 3
Dependent Claim
49 words
The bus system of claim 1, wherein said terminator means comprises a terminator card having connector means on it complimentary with said connector means on said interface connector card, the terminal ends of said bus being terminated by affixing said terminator card to the terminal one of the subsystems.
Claim 4
Dependent Claim
72 words
The bus System of claim 1, wherein said interface connector card has a pin connector on it for receiving and establishing electrical contact with the connector means on said bus cable and said terminator means, said interface connector card having contact means thereon for electrically coupling it with complimentary connector means of the subsystems for interfacing the subsystem with said bus and multiple means thereon for maintaining the continuity of said bus.
Claim 5
Dependent Claim
55 words
The bus system of claim 3, wherein said multiple means comprise printed circuit wiring on said interface connector card coupling the portion of said pin connector receiving the connector means on one of said bus cables with the portion thereof receiving the connector means on another one of said bus cables, or a terminator means.
Claim 6
Dependent Claim
66 words
The bus system of claim 3, wherein said connector means on each of the opposite ends of said bus cable comprises a printed wiring card having printed wiring contacts thereon, said pin connector receiving therein said printed wiring card and establishing electrical contact via said printed wiring contacts, said printed wiring card further having printed wiring thereon establishing electrical contact with said length of bus cable.
Claim 7
Dependent Claim
47 words
The bus system of claim 3, wherein said interface connector card has a support bracket affixed to it with positioner means for positioning and aligning said connector means on said bus cable and said terminator means, when inserting and removing said connector means and said terminator means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |