Information transport system employing telephone lines
First Claim
1. A data transport system;
- said system comprises;
means for interconnecting a flow of data on a plurality of telephone subscriber lines to a single transmission line, said transmission line communicating with a provider of data service, said interconnection means including means for addressing individual ones of said telephone subscriber lines in accordance with control signals transmitted to said interconnection means by said provider of data service;
means located on a main distribution frame of a telephone system, for providing a connection between said interconnection means and said individual ones of said telephone subscriber lines without interference with existing wiring of said main distribution frame; and
data communication equipment connected to each of said individual ones of said telephone subscriber lines, said data communication equipment including at least one passive service unit, each said passive service unit being individually addressable by a signal from said interconnection means, each said unit including means, responsive to said sgnal, for transmitting data without human intervention.
4 Assignments
0 Petitions
Accused Products
Abstract
A data transport system connects with a telephone system for communication of data via subscriber telephone lines to a provider of data services. Connection of multiplexing circuitry to a set of subscriber lines is accomplished at a main distribution frame by adapters or access blocks set between arc suppressors and a terminal block. The multiplexing circuitry is activated by signals of a line scan unit which, in turn, cooperates with a host computer associated with the provider of data services. This arrangement bypasses the central switching equipment. The data may be transmitted out of voice band, if desired, to enable simultaneous voice and data transmission. Passive, active and interactive data can be transmitted by the data transport system.
124 Citations
12 Claims
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1. A data transport system;
- said system comprises;
means for interconnecting a flow of data on a plurality of telephone subscriber lines to a single transmission line, said transmission line communicating with a provider of data service, said interconnection means including means for addressing individual ones of said telephone subscriber lines in accordance with control signals transmitted to said interconnection means by said provider of data service; means located on a main distribution frame of a telephone system, for providing a connection between said interconnection means and said individual ones of said telephone subscriber lines without interference with existing wiring of said main distribution frame; and data communication equipment connected to each of said individual ones of said telephone subscriber lines, said data communication equipment including at least one passive service unit, each said passive service unit being individually addressable by a signal from said interconnection means, each said unit including means, responsive to said sgnal, for transmitting data without human intervention. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- said system comprises;
Specification