Alcatel USA Sourcing, L.p.

Dsc Communications Corporation

Alcatel USA

Tellabs Bedford, Inc.

Michael H Jette

Steven Dale Sensel

Edgar L Read

Amanda G Noe

Gregory S Lovelace

Mike M Tatachar

Robert W Cantwell

Neil D Salisbury

Stephen A Deschaine

Gary D Hanson

Long V Vo

Werner L Heissenhuber

Harbhajan S Virdee

Mark C Cromwell

Dennis K Smith

Shaji A Thomas

Neil E Glassie

Paul R Frazier

Jeffrey H Nielson

William C Tucker

Becky J Sampson

William A Moffit

Mark J Nietubyc

Shaun Bennett

Stephen L Dulaney

An apparatus and system are provided for delivering communication services such as video, data and telephony services to individual residential units. According to one embodiment, an optical network terminal (ONT) for providing communication services to a single residential unit comprises a passive optical network interface (PI) circuit, a residential service interface (RSI) circuit, and a power unit. The PI circuit receives optical signals from an optical fiber and transmits optical signals onto the optical fiber. The PI circuit is adapted to convert received optical signals containing voice information to electrical voice ATM cells, received optical signals containing data information to electrical data ATM cells, and received optical signals containing video signals to electrical video signals. The PI circuit is also adapted to convert electrical voice ATM cells and electrical data ATM cells to optical signals for transmission over the optical fiber.

Fiber to the home broadband home unit

An apparatus and system are provided for delivering communication services such as video, data and telephony services to individual residential units. According to one embodiment, an optical network terminal (ONT) for providing communication services to a single residential unit comprises a passive optical network interface (PI) circuit, a residential service interface (RSI) circuit, and a power unit. The PI circuit receives optical signals from an optical fiber and transmits optical signals onto the optical fiber. The PI circuit is adapted to convert received optical signals containing voice information to electrical voice ATM cells, received optical signals containing data information to electrical data ATM cells, and received optical signals containing video signals to electrical video signals. The PI circuit is also adapted to convert electrical voice ATM cells and electrical data ATM cells to optical signals for transmission over the optical fiber; The RSI circuit that is adapted to convert the electrical voice ATM cells to a telephony format suitable for use at the residential unit and the electrical data ATM cells to a network format suitable for use at the residential unit. The RSI circuit is also adapted to convert telephony format information received from the residential unit to voice ATM cells and network format information received from the residential unit to data ATM cells. The power unit provides power for use in the PI circuit and the RSI circuit. The power unit includes an AC/DC converter for converting ac power received from the residential unit to dc power for use in the ONT and backup batteries for providing power when there is an interruption of the ac power.

A distributed digital cross-connect system () is provided. The system includes two or more network interface islands () that connect to the telecommunications network. The system () also includes one or more distributed services nodes (). Each distributed services node () connects to two or more of the network interface islands (). The network interface islands () can transmit data to each other through the distributed services node (). An administration system () is also connected to each distributed services node () and each network interface island (). The administration system () transmits matrix configuration and telecommunications channel routing data to the network interface islands () and the distributed services nodes ().

Distributed digital cross-connect system and method

A network interface card ( ) includes a line interface unit ( ) operable to receive inbound network telecommunications signals having one of a plurality of first formats. A transceiver framer unit ( ) converts the inbound network telecommunications signals from the first format to a second format. A matrix interface unit ( ) transports the inbound network telecommunications signals having the second format to a pair of redundant switching matrix planes (A, B). The matrix interface unit ( ) also receives outbound, network telecommunications signals having the second format from the redundant switching planes (A, B) for transport to the transceiver framer unit ( ). The transceiver framer unit ( ) converts the outbound network telecommunications signals from the second format to an appropriate first format for transport to network elements through the line interface unit ( ).

High density unit shelf network interface card and method

An N:1 transcoder (,) with a compression data path that includes uncompressed digroup circuits (,, and,) each receiving N incoming uncompressed signal and extracting a plurality of control, signaling, and voice/data traffic channels therefrom, a compressor (,) coupled to the uncompressed digroup circuits (,, and,) and compressing data in selected ones of the extracted voice/data channels, and a compressed data circuit (,) coupled to the compressor (,) for packing the compressed data into predetermined channels of one compressed signal, and further providing control, signaling, and performance monitoring information embedded therein.

N:1 transcoder

A timing system for distributing a timing signal includes a master timing system that receives a network timing reference. The master timing system generates a master timing signal from the network timing reference. A distributed services node timing system receives the master timing signal and embeds a timing signal into a data transmission frame. A network interface island receives the data transmission frame and retrieves the embedded timing signal therefrom.

Timing system and method for distributing a timing signal

A distributed digital cross-connect system (,) is provided. The system includes two or more network interface islands (,) that connect to the telecommunications network. The system (,) also includes one or more distributed services nodes (,). Each distributed services node (,) connects to two or more of the network interface islands (,). The network interface islands (,) can transmit data to each other through the distributed services node (,). An administration system (,) is also connected to each distributed services node (,) and each network interface island (,). The administration system (,) transmits matrix configuration and telecommunications channel routing data to the network interface islands (,) and the distributed services nodes (,).

A telecommunications network (,) includes a digital cross-connect system (,) that receives frame relay information carried in individual DS-,signals over DS-,links (,) and/or multiple DS-,signals over FT-,links (,). The digital cross-connect system (,) includes a cross-connect matrix (,) that consolidates DS-,signals into DS-,signals. The digital cross-connect system (,) further includes a frame groomer (,) that extracts frames from each DS-,signal for consolidation into a frame groomed consolidated circuit. The frame groomed consolidated circuit is transferred to an edge switch (,) in DS-,signals through the frame groomer (,) and the cross-connect matrix (,).

System, device, and method for consolidating frame information into a minimum number of output links

A network interface card (100) includes a line interface unit (102) operable to receive inbound network telecommunications signals having one of a plurality of first formats. A transceiver framer unit (104) converts the inbound network telecommunications signals from the first format to a second format. A matrix interface unit (106) transports the inbound network telecommunications signals having the second format to a pair of redundant switching matrix planes (A, B). The matrix interface unit (106) also receives outbound, network telecommunications signals having the second format from the redundant switching planes (A, B) for transport to the transceiver framer unit (104). The transceiver framer unit (104) converts the outbound network telecommunications signals from the second format to an appropriate first format for transport to network elements through the line interface unit (102).

High density unit shelf with network interface cards and method

A centrally-managed switch for interconnecting a plurality of digital signals through a plurality of selectable switch ports and controlled by a central management unit includes a cross-connect having a plurality of plesiochronous primary rate signal ports for receiving a plurality of plesiochronous primary rate signals, each plesiochronous primary rate signal comprising a plurality of channels, the cross-connect operable to switch ones of the channels of an originating plesiochronous primary rate signal to a destination plesiochronous primary rate signal. The invention further comprises an add/drop multiplexer comprising a plurality of synchronous primary rate signal ports coupled to the second plurality of plesiochronous primary rate signal ports of the cross-connect and operable to receive a plurality of synchronous high-speed signals, each synchronous high-speed signal comprising a plurality of synchronous primary rate signals, the add/drop multiplexer operable to remove ones of the synchronous primary rate signals from an originating synchronous high-speed signal and to add synchronous primary rate signals to a destination high speed synchronous signal. The cross-connect and add/drop multiplexer receive commands from the central management unit, the central management unit operable to generate commands to configure the switch for switching of data between synchronous high speed signals at a channel level in the cross-connect, and to generate commands to configure the switch for insertion of data from an originating plesiochronous primary rate signal into a destination synchronous high-speed signal.

System and method for centrally-managing switching functions

A telecommunication system (10) includes one or more subscribers (24) that provide telecommunication traffic in an upstream direction to a D4 channel bank (26). The D4 channel bank provides network interface signals having a first signaling protocol format to a cross-connect (18) over a telecommunication link (28). The cross-connect (18) includes a signaling protocol converter (30) that converts network interface signals having the first signaling protocol format into network interface signals with a second signaling protocol format. The cross-connect (18) passes the network interface signals with the second signaling protocol format to a local digital switch (20) over any of multiple telecommunication links (22a-22n). In a downstream direction from the local digital switch (20) to the subscribers (24), the signaling protocol converter (30) converts from the second signaling protocol format to the first signaling protocol format. In this manner, devices with differing signal protocol formats may communication with each other.

Signaling protocol conversion system

A small broadband cross-connect system (10) includes a two-stage matrix (12) for processing and cross-connecting optical and electrical telecommunication network signals. An administration subsystem (14) provides centralized control and synchronization to the two-stage matrix (12). The two-stage matrix (12) may be expanded from 96 ports to 192 ports in a cost and space effective manner.

Broadband digital cross-connect system architecture

A high density unit shelf (22) is provided for use with a digital switch such as a digital cross-connect system (10). The high density unit shelf (22) provides redundant interfacing capability and may be configured in a redundant configuration, a non-redundant configuration, or combinations thereof. The high density unit shelf (22) generally includes a plurality of network interface port pairs, such as a network interface port (52) and (56), a plurality of network connectors, such as a receive network connector (50) and a transmit network connector (54), a plurality of first matrix connectors, such as a matrix connector (70), and a plurality of second matrix connectors such as a matrix connector (72). The network interface port pair receives a first network interface card at the network interface port (52) and a second network interface card at the network interface port (56).

High density unit shelf and method

A telecommunications network (12) includes a digital cross-connect system (10) that receives frame relay information carried in individual DS-0 signals over DS-0 links (14) and/or multiple DS-0 signals over FT-1 links (16). The digital cross-connect system (10) includes a cross-connect matrix (44) that consolidates DS-0 signals into DS-1 signals. The digital cross-connect system (10) further includes a frame groomer (40) that extracts frames from each DS-0 signal for consolidation into a frame groomed consolidated circuit. The frame groomed consolidated circuit is transferred to an edge switch (24) in DS-1 signals through the frame groomer (40) and the cross-connect matrix (44).

System, device, and method for consolidating frame information into a

A timing system (100) for coordinating the components of a distributed digital cross-connect system (10) is provided. The timing system (100) includes a master timing system (102) that receives a network timing reference (98, 99) and generates a master timing signal. A distributed services node timing system (104, 106) is connected to the master timing system (102) and receives the master timing signal. The distributed services node timing system (104, 106) then embeds a timing signal in a data transmission frame (150). Two or more digital cross-connect timing systems (108) are connected to the distributed services node timing system (104, 106) and receive the data transmission frame (150). The digital cross-connect timing systems (108) retrieve the embedded timing signal from the data transmission frame (150).

Growing community of inventors

Grapevine, TX, United States of America

Michael H Jette