Communications controller for use with a computer and a pluralit

Details Communications controller for use with a computer and a pluralit Communications controller for use with a computer and a pluralit

1991-08-07

1993-05-11

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 857, H04J 302

Patent

active

052107477

ABSTRACT:
A communications controller is provided that allows transfer of a large number of frames to each of the channels of an S.sub.0 -type link to be handled simultaneously at a data transfer rate matched to that of the link. The communications controller is connected between a bus associated with at least one host computer and the terminals of a network connected by a time-multiplexed digital link. The communications controller includes a base unit connected to the bus for managing and effecting the transfer of frames for the link, and a peripheral unit connected to the base unit and to the network. The base unit has a first processor of commands for transferring frames from the host to the network and vice versa, the first processor being associated with a frame storage memory; a peripheral part comprising a coupler controlled by second processor for ensuring multiplexing or demultiplexing of the data; and a second processor, in communication with the first, for transferring frames from the frame storage memory to the peripheral part and vice versa.

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