Multiplex communications – Wide area network – Packet switching
Patent
1986-07-24
1988-11-22
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 94, H04J 302
Patent
active
047870826
ABSTRACT:
In a local data distribution network configuration a plurality of bidirectional data distribution busses are each connected to a bus master control circuit at a terminal end of the bus. Connected to each of the data distribution busses are a plurality of passive outlets to which intelligent connectors or stations may be connected. Each station has a unique address and is utilized for individually coupling data processing devices to the bus. Grouped pluralities of the bus master control circuits are included within a bus termination hub facility. Data from any of the bus master control circuits may be transferred by the bus termination hub via a data trunk as part of a star type configuration, to a central switching circuit such as a virtual circuit switch. Direction of data flow on each of the bidirectional busses and periodic temporary synchronization of the stations is controlled in response to signals transmitted to the bus by the bus master control circuitry associated with that bus. A bus termination hub switching facility cooperates with the included group of bus master control circuits to interconnect data processing stations on the various busses with the virtual circuit switch via the trunk line and with each other.
The bus termination hub facility further includes bus monitoring, status polling and maintenance facilities. A faulty bus will be disconnected if a fault is discovered during monitoring intervals. It will remain disconnected until the fault is corrected.
REFERENCES:
patent: 3796992 (1974-03-01), Nakamura et al.
patent: 3818447 (1974-06-01), Craft
patent: 4516205 (1985-07-01), Eing et al.
patent: 4538262 (1985-08-01), Sinniger et al.
patent: 4670872 (1987-06-01), Cordill
Delaney Robert H.
Fraser Alexander G.
Kalmanek, Jr. Charles R.
Restrick, III Robert C.
American Telephone and Telegraph Company AT&T Bell Laboratories
Jung Min
Olms Douglas W.
Steinmetz Alfred G.
LandOfFree
Data flow control arrangement for local area network does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data flow control arrangement for local area network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data flow control arrangement for local area network will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-439806