Marconi Communications Gmbh

John W Matthes

George H BuAbbud

Muneer Zuhdi

Mahlon Danny Kimbrough

Janet A Bradshaw

Barry Joe Ethridge

Michael R Cosley

Mark Hendrix

Andy Low

Georgeanne M Radloff

George Bu-Abbud

Ram Ramachandran

James Zipper

Jeff Nesnadny

Dennis Walker

Jeff Nesadny

Apparatus and methods for maintaining balanced communication channels evenly even with heavy increases in service demands are disclosed. The apparatus uses an arrangement of jumpers and unique connection panes which allow rapid changes in the distribution of similar circuits to achieve balanced loads.

Apparatus and methods for maintaining balanced communication channels with increasing service demands

An apparatus for supporting a plurality of densely arranged electrically shielded communication panels includes a rack that supports at least two panels. The panels are supported adjacent to each other by the rack, and each panel includes at least two sides with a printed circuit on one side and a conductive sheet on the other side. In addition, the conductive sheet on each of the panels is coupled to an electrical connection point on the rack when the panel is placed in the rack. The two panels are placed in the rack such that the printed circuit of one of the panels is electrically shielded by the conductive sheet on another, closely aligned other one of the panels.

Densely arranged electrically shielded communication panels

A splice tray for use in splicing fiber optic cables has an outer periphery and a cable splicing area inwardly of the outer periphery. A main cable guideway for receiving a pair of side-by-side cables to be spliced extends along a portion of the outer periphery adjacent thereto. The main cable guideway splits into first and second continuation guideways, the first of which curves inwardly from the outer periphery to intersection with the splicing area from one direction. The second continuation guideway continues along another portion of the outer periphery to intersection with the splicing area from another direction. The two fiber optic cables that extend along the main guideway are separated to extend through the first and second continuation guideways to the splicing area for being joined together in a splice. A cable looping device is provided in the splicing area for receiving cable loops to take up slack, and a splice receiving recess is provided in the splice area for holding a splice. A housing for the splice tray includes a vertical case having a door hinged to the bottom portion thereof for swinging movement about a horizontal hinge axis between a vertical closed position and a horizontal open position. The splice tray is attached to the inside of the door for receiving a pair of cables that extend from the case and across the hinge to the splice tray. An integral inclined guideway extension on the splice tray extends toward the hinge axis along an inclined door bottom wall for receiving the cables.

Splice tray for use in splicing fiber optic cables and housing therefor

An ONU includes circuit cards, a card cage, and electrical connector hardware. The card cage releaseably engages and supports the circuit cards in installed positions in the card cage. At least one pair of the circuit cards have serial interconnections with each other. The electrical connector hardware defines all of those serial interconnections and is free of a backplane.

Card cage for circuit cards in an optical network unit

A multi-service, adaptable optical network unit (ONU) is disclosed for use in a fiber-to-the-curb (FTTC) digital loop carrier system, including a multi-service common card and a plurality of multi-media service cards that are connected to the common card using a card-link interface. The card-link interface is preferably a high-speed LVDS serial-bus connection that is organized in a star configuration such that each service card is connected to the multi-service common card using a separate point-to-point card-link. By eliminating the traditional backplane structure found in present ONU designs, the present invention provides a scalable, adaptable, future-proof FTTC system that can transport present-day multi-media services as well as yet-to-be-defined future high-bandwidth applications.

Multi-service adaptable optical network unit

Apparatus and method for supporting a large number of densely arranged and electrically shielded panels are disclosed. To achieve shielding each panel has a grounded back plane which acts as shielding for circuitry on an adjacent panel as well as shielding for its own circuitry.

Wall-mounted home network unit

Wall-mounted battery unit

Growing community of inventors

Southlake, TX, United States of America

John W Matthes