Adtran Gmbh

Universal Data Systems, Inc.

Mark C Smith

O Leon Pierce

Roger W Cain

Scott L Carden

R Byron Driver

A mounting system is provided whereby a data communications system can be mounted in a plurality of different ways in one or more standard size rack openings and on planar surfaces. A first bracket selection and arrangement provides side by side dual mounting of two closures within a first rack having a first rack width. A second bracket selection and arrangement provides side by side dual mounting of two enclosures within a second rack having a second rack width greater than the first rack width. A third bracket selection and arrangement provides a single mounting of one enclosure in the first rack. A fourth bracket selection and arrangement provides a single mounting of one enclosure in the second rack. A fifth bracket selection and arrangement provides a single mounting of one enclosure on a planar surface.

Mounting arrangements for data communication devices

An analog data station terminal is described for use in a high speed data telecommunication system. The analog data station terminal interfaces a customer modem to the local telephone line for transmission of data at very high data rates, e.g., more than 9600 bits per second, with significant reduction in error rate. The analog data station terminal receives analog signals from the customer modem and converts then to a digital form that is compatible with the telephone system. The analog data station terminal also receives digital data from the telephone system and converts it to analog form for input to the customer modem. The formatting and reformatting of the data signals are performed synchronously with the telephone digital data network.

Analog data station terminal

A modem for coupling a data terminal or other apparatus to a telephone line and deriving its operating power for both transmitting and receiving operation from the telephone line, and providing electrical isolation between the telephone line and the data terminal.

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Huntsville, AL, United States of America

Mark C Smith