公开(公告)号：CA2389589A1

公开(公告)日：2001-05-31

申请号：CA2389589

申请日：2000-11-02

Applicant: XROS INC

Inventor： WARD ROBERT R ,  RAMASWAMI RAJIV

IPC: G02B6/43 ,  H04Q11/00

Abstract: The present invention provides methods, systems, and data communication networks for providing fault protection in an optical network. In one embodiment, the present invention includes a source node having an optical cross-connect switching system that has a source port card with a splitter t o split an input optical signal into two similar optical signals. The two similar optical signals contain the same information. A source optical switching device switches one of the two similar optical signals to a first destination port card and onto an adjacent node and the other one of the similar optical signals to a second destination port card and onto a differe nt adjacent node, respectively, such that the two similar optical signals are then diversely routed through the optical network. A destination node having an optical cross-connect switching system receives the two similar optical signals via first and second source port cards, respectively. The optical cross-connect switching system of the destination node includes a destinatio n optical switching device to switch each of the two similar optical signals t o a destination port card having a selector switch. The selector switch select s one of the available two similar optical signals, such that, if one of the diversely routed similar optical signals fails to reach the destination node , due to a fault in the optical network, the other one of the similar optical signals is still available. Thus, the same information is provided to the destination port card of the destination node and 1+1 optical fault protecti on is provided for the optical network.

公开(公告)号：AU3641001A

公开(公告)日：2001-05-14

申请号：AU3641001

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  TABASKA STEVEN T ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00

Abstract: In general, an optical cross-connect switching system comprising a switch subsystem, an input/output (I/O) subsystem including a plurality of removable, I/O port modules, and a switch control subsystem featuring servo modules. These units collectively operate to provide optical data paths for routing of light signals without conversion from optical to electrical domains and back to optical. Also, the optical cross-connect switching system is scalable because the I/O port modules, servo modules and even features of the switch subsystem may be removed without disruption in system operation.

公开(公告)号：AU4302201A

公开(公告)日：2001-06-04

申请号：AU4302201

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00 ,  H04J3/00

公开(公告)号：AU3071901A

公开(公告)日：2001-05-14

申请号：AU3071901

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00 ,  H04B10/00

Abstract: Methods, apparatus and systems for regenerating, monitoring and bridging optical signals through an optical cross-connect switch to provide increased reliability. A self testing method, apparatus and system for an optical cross-connect switch. An optical-to-electrical-to-optical converter (O/E/O) is provided in an optical cross-connect switch to provide optical-electrical-optical conversion. I/O port cards having an optical-to-electrical-to-optical converter are referred to as smart port cards while I/O port cards without an optical-to-electrical-to-optical converter are referred to as passive port cards. Test port/monitor cards are also provided for testing optical cross-connect switches. Methods, apparatus and systems for performing bridging, test access, and supporting redundant optical switch fabrics are also disclosed.

公开(公告)号：CA2389735A1

公开(公告)日：2001-05-10

申请号：CA2389735

申请日：2000-11-02

Applicant: XROS INC

Inventor： TABASKA STEVEN T ,  RAMASWAMI RAJIV ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00

Abstract: In general, an optical cross-connect switching system comprising a switch subsystem, an input/output (I/O) subsystem including a plurality of removabl e, I/O port modules, and a switch control subsystem featuring servo modules. These units collectively operate to provide optical data paths for routing o f light signals without conversion from optical to electrical domains and back to optical. Also, the optical cross-connect switching system is scalable because the I/O port modules, servo modules and even features of the switch subsystem may be removed without disruption in system operation.

公开(公告)号：CA2389527A1

公开(公告)日：2001-05-10

申请号：CA2389527

申请日：2000-11-02

Applicant: XROS INC

Inventor： WARD ROBERT R ,  RAMASWAMI RAJIV

IPC: G02B6/43 ,  H04Q11/00

Abstract: Methods, apparatus and systems for regenerating, monitoring and bridging optical signals through an optical cross-connect switch to provide increased reliability. A self testing method, apparatus and system for an optical cros s- connect switch. An optical-to-electrical-to-optical converter (O/E/O) is provided in an optical cross-connect switch to provide optical-electrical- optical conversion. I/O port cards having an optical-to-electrical-to-optica l converter are referred to as smart port cards while I/O port cards without a n optical-to-electrical-to-optical converter are referred to as passive port cards. Test port/monitor cards are also provided for testing optical cross- connect switches. Methods, apparatus and systems for performing bridging, te st access, and supporting redundant optical switch fabrics are also disclosed.

公开(公告)号：WO0133897A9

公开(公告)日：2002-05-16

申请号：PCT/US0030494

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  CLARK STEVEN ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00

CPC classification number: H04Q11/0062 ,  G02B6/43 ,  H04J14/0293 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083

Abstract: In one embodiment, a scalable cross-connect switching system and its corresponding method perform a bridging operation by splitting the incoming light signal into at least a first bridged light signal and a second bridged light signal. The first bridged light signal has a power level equal to or substantially greater than a power level of the second bridged light signal. The disproportionate power levels provide low-loss bridging. Light signals based on these bridged light signals are routed through multiple switch fabrics which provide redundancy in case of failure by switching within the switch fabric. To detect failures, a test access port is configured for monitoring multiple optical paths.

Abstract translation: 在一个实施例中，可扩展交叉连接交换系统及其对应方法通过将入射光信号分成至少第一桥接光信号和第二桥接光信号来执行桥接操作。 第一桥接光信号具有等于或基本上大于第二桥接光信号的功率电平的功率电平。 不相称的权力水平提供低损失桥梁。 基于这些桥接光信号的光信号通过多个交换结构进行路由，这些交换结构在交换结构内切换时在故障的情况下提供冗余。 为了检测到故障，测试接入端口被配置为监视多个光路。

公开(公告)号：AU3262201A

公开(公告)日：2001-05-14

申请号：AU3262201

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  CLARK STEVEN ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00

公开(公告)号：CA2389948A1

公开(公告)日：2001-05-10

申请号：CA2389948

申请日：2000-11-02

Applicant: XROS INC

Inventor： WARD ROBERT R ,  CLARK STEVEN ,  RAMASWAMI RAJIV

IPC: G02B6/43 ,  H04Q11/00

Abstract: In one embodiment, a scalable cross-connect switching system and its corresponding method perform a bridging operation by splitting the incoming light signal into at least a first bridged light signal and a second bridged light signal. The first bridged light signal has a power level equal to or substantially greater than a power level of the second bridged light signal. The disproportionate power levels provide low-loss bridging. Light signals based on these bridged light signals are routed through multiple switch fabrics which provide redundancy in case of failure by switching within the switch fabric. To detect failures, a test access port is configured for monitoring multiple optical paths.

公开(公告)号：WO0133897A2

公开(公告)日：2001-05-10

申请号：PCT/US0030494

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  CLARK STEVEN ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00

CPC classification number: H04Q11/0062 ,  G02B6/43 ,  H04J14/0293 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083

Abstract: In one embodiment, a scalable cross-connect switching system and its corresponding method perform a bridging operation by splitting the incoming light signal into at least a first bridged light signal and a second bridged light signal. The first bridged light signal has a power level equal to or substantially greater than a power level of the second bridged light signal. The disproportionate power levels provide low-loss bridging. Light signals based on these bridged light signals are routed through multiple switch fabrics which provide redundancy in case of failure by switching within the switch fabric. To detect failures, a test access port is configured for monitoring multiple optical paths.

Abstract translation: 在一个实施例中，可扩展交叉连接交换系统及其对应方法通过将入射光信号分成至少第一桥接光信号和第二桥接光信号来执行桥接操作。 第一桥接光信号具有等于或基本上大于第二桥接光信号的功率电平的功率电平。 不相称的权力水平提供低损失桥梁。 基于这些桥接光信号的光信号通过多个交换结构进行路由，这些交换结构在交换结构内切换时在故障的情况下提供冗余。 为了检测到故障，测试接入端口被配置为监视多个光路。