US3800097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus system for interconnecting systems of a communication switching system
Assignee: AG Communication Systems Corp
•
Filing: 1972-09-15
•
Granted: 1974-03-26
•
Expires: 1992-09-15
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 assembly 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 assembly, 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
- 👤 J Maruscak
- 👤 S Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:07
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545; H04Q3/54541; H04Q3/5455; G; G06; G06F; G06F13/00; G06F13/38; G06F13/40; G06F13/4063; G06F13/409
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
A bus system for a communication switching system at least partially formed of a number of mutually compatible modular subsystems each of which includes a bus interface unit card 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 assembly affixed to each of said subsystems for providing an interfacing between said bus cable and a subsystem, each of said interface connector assemblies having a pin connector on it for receiving and establishing electrical contact with the circuitry of said bus interface unit card to interface said subsystems with said bus and 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
183 words
A bus system for a communication switching system at least partially formed of a number of mutually compatible modular subsystems each of which includes a bus interface unit card 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 assembly affixed to each of said subsystems for providing an interfacing between said bus cable and a subsystem, each of said interface connector assemblies having a pin connector on it for receiving and establishing electrical contact with the circuitry of said bus interface unit card to interface said subsystems with said bus and 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
64 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 assembly which is complimentary with said connector means on said bus cables, the terminal ends of said bus being terminated by affixing said terminator card to the connector assembLy on the terminal one of said subsystems.
Claim 4
Dependent Claim
121 words
The bus system of claim 1, wherein said interface connector assemblies each further include at least one pair of pin arrays, corresponding ones of said pair of pin arrays being multipled and coupled to an associated one of the pin contacts of said pin connector, said connector means on the opposite ends of said bus cables being formed to couple with said pin arrays, said bus being interconnected to said subsystems by coupling said connector means on the opposite ends of said bus cable with one of said pair of pin arrays on an interface connector assembly on one of said subsystems and one of said pair of pin arrays on an interface connector assembly on another one of said subsystems.
Claim 5
Dependent Claim
66 words
The bus system of claim 3, wherein said terminator means comprises a terminator card having connector means on it formed to couple with each of the respective pairs of pin arrays on said interface connector assemblies, the terminal ends of said bus being terminated by affixing said terminator card to the open one of said pair of pin arrays on the terminal one of said subsystems.
Claim 6
Dependent Claim
145 words
The bus system of claim 4, wherein said bus interface unit card is a double-sided card having duplicate printed wire circuitry on each of the opposite sides thereof and said pin connector on said interface connector assembly is adapted to receive and establish electrical contact with the circuitry on each of the opposite sides thereof, a second pair of pin arrays on said interface connector assemblies having correspondng ones thereof multipled and coupled to an associated one of another set of pin contacts of said pin connector, said one pair of pin arrays being associated with the circuitry on one side of said bus interface unit card and the other pair of pin arrays being associated with the circuitry on the opposite side thereof, whereby a second duplicate bus can interconnect said subsystems by affixing said bus cables between said other pair of pin arrays.
References Cited (Backward Citations)
US3462558A
Cited
US3610836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |