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Browse Prior Art Database

AUTOSYNCHRONIZING SHORT HAUL DATA CONCENTRATOR WITH HANDSHAKING

IP.com Disclosure Number: IPCOM000005553D
Original Publication Date: 1984-Apr-01
Included in the Prior Art Database: 2001-Oct-15

Publishing Venue

Motorola

Related People

Authors:
Steve Bramblett

Abstract

This circuit is intended to improve digital data communications occurring over asynchronous channels such as might occur between a computer and a terminal. Most terminals are designed to communicate at a 9600 baud rate in a full duplex asychronous mode which puts severe distance requirements between the computer and its terminals. This circuit will allow up to eight terminals to communicate at 9600 baud full duplex over a single 26 gauge twisted-pair wire over distances up to 2 kilometers. As a bonus this design not only allows local handshaking but it also allows a remote handshake to be used with the terminals which has not been practical for modulated data transmission schemes.