Multiplex communications – Wide area network – Packet switching
Patent
1993-12-06
1995-06-13
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 851, H04J 302
Patent
active
054250226
ABSTRACT:
A data switching node includes a plurality of data lines including high speed data (link) lines and low speed data (port) lines and a switch connected to the data lines. The switch is a distributed multiplexer comprising a number of switching modules connected in common to a data bus. The switching modules are arranged to communicate data with the common data bus. A control module is also connected to the bus and arranged to control the addressing of the switching modules so that data received by a switching module connected to one data line is transmitted directly via the common data bus to a switching module connected to a selected other one of the data lines in response to a control signals from the control module identifying the said switching module, the data being transmitted in association with a logical channel number associated with the switching module connected to the selected other one of the data lines. IN a method of operating a multiplexer particularly suitable for use with the data switching node a plurality of channels are received and transmitted as byte-interleaved frames. Each incoming channel is assigned a logical channel number and written to a byte or bit position of the outgoing data frame selected in accordance with the logical channel number. The outgoing frame is assembled and output substantially coincidentally with the incoming date frame.
REFERENCES:
patent: 3881064 (1975-04-01), Schlichte
patent: 4658152 (1987-04-01), Walters
patent: 4685101 (1987-08-01), Segal et al.
patent: 4697262 (1987-09-01), Segal et al.
patent: 4764919 (1988-08-01), Hunter et al.
patent: 4932024 (1990-06-01), Bonicioli et al.
patent: 5038347 (1991-08-01), Courtois
patent: 5124981 (1992-06-01), Golding
IEEE International Conference on Communications, vol. 2, 1983 Acampora et al: "A Centralized-Bus Architecture For Local Area Networks," pp. 932-938.
Proceedings of the International Switching Symposium, Session 31 B Paper 6, 7-11 May 1984, Florence, Italy G. Taille et al: "A laboratory model of a signalling transfer point (STP)", pp. 1-7.
Clark Alan D.
Turner Michael N.
British Telecommunications public limited company
Olms Douglas W.
Ton Dang
LandOfFree
Data switching nodes 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 switching nodes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data switching nodes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1316178