公开(公告)号：US5991312A

公开(公告)日：1999-11-23

申请号：US962757

申请日：1997-11-03

申请人： Roger L. Koenig ,  S. Christopher Alaimo ,  Thomas E. Bullington ,  Phillip D. Clark ,  Kenneth C. Grobaski ,  Matthew D. Morris ,  Kirkton I. Shoop ,  Michael A. Trofi

发明人： Roger L. Koenig ,  S. Christopher Alaimo ,  Thomas E. Bullington ,  Phillip D. Clark ,  Kenneth C. Grobaski ,  Matthew D. Morris ,  Kirkton I. Shoop ,  Michael A. Trofi

IPC分类号： H04J3/00 ,  H04J3/14 ,  H04J3/16 ,  H04L1/22 ,  H04J3/04

CPC分类号： H04J3/14 ,  H04J3/1641 ,  H04L1/22

摘要： A multiplexer device for multiplexing and demultiplexing signals between a low-speed network including 28 DSX-1 signals and a relatively higher speed network including a DS-3 signal. The multiplexer device includes 7 quad DSX-1 cards and 1 spare card. The spare card is connected to the other 7 DSX-1 cards in a fashion that allows the spare card to automatically be switched in for one of the DSX-1 cards or to allow interface electronics on the spare card to replace selected ones of the interface electronics on various different DSX-1 cards simultaneously. A pair of controller cards, a primary card and a secondary card, perform the M1-3 multiplexing and demultiplexing and the DS-3 framing and transceiving. The controller cards can be selected or deselected by distributed logic in a sufficiently short time period so that alarms are not set off and so that the transition is hitless. This is accomplished by electronically enabling and disabling the transceiver. The multiplexer device is connectable to 2 different T-3 links to provide network redundancy. An array of relays provides for the connection of either controller card to either of the T-3 links. The controller cards are externally connectable to a computer network such as an Ethernet for external control thereof through SNMP or Telnet sessions. The multiplexer device is housed within a significantly reduced volume which occupies only a single rack unit on a standard 19" or 23" wide vertical rack used for telecommunications equipment. The significantly reduced volume is partially due to a dual backplane architecture in which an external backplane serves as the external connector plane while a separate internal backplane serves as the connection to the various DSX-1 cards and controller cards.

摘要翻译： 一种用于在包括28个DSX-1信号的低速网络和包括DS-3信号的相对较高速度网络之间复用和解复用信号的多路复用器装置。 多路复用器装置包括7个四路DSX-1卡和1个备用卡。 备用卡以其他7个DSX-1卡连接，允许备用卡自动切换到其中一个DSX-1卡，或允许备用卡上的接口电子元件更换所选接口 电子元件在各种不同的DSX-1卡上同时进行。 一对控制器卡，主卡和辅助卡，执行M1-3复用和解复用和DS-3框架和收发。 控制器卡可以在足够短的时间周期内由分布式逻辑选择或取消选择，从而不会引起报警，从而使转换无效。 这是通过电子启用和禁用收发器来实现的。 多路复用器可连接到2个不同的T-3链路，以提供网络冗余。 一组继电器提供了将控制器卡连接到任何一个T-3链路。 控制器卡可通过SNMP或Telnet会话从外部连接到诸如以太网的计算机网络以进行外部控制。 复用器装置容纳在显着减小的体积中，其仅占用于用于电信设备的标准19“或23”宽垂直架上的单个机架单元。 显着减小的体积部分是由于双背板架构，其中外部背板用作外部连接器平面，而单独的内部背板用作与各种DSX-1卡和控制器卡的连接。

公开(公告)号：US07356258B1

公开(公告)日：2008-04-08

申请号：US10306826

申请日：2002-11-26

申请人： Robert T. Weverka ,  S. Christopher Alaimo ,  Dirk Barthel ,  Edward Bortolini ,  Rainer Robert Iraschko ,  George David Morley ,  {grave over (D)}emetrios Stamatelakis

发明人： Robert T. Weverka ,  S. Christopher Alaimo ,  Dirk Barthel ,  Edward Bortolini ,  Rainer Robert Iraschko ,  George David Morley ,  {grave over (D)}emetrios Stamatelakis

IPC分类号： H04B10/00

CPC分类号： H04J14/0291 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0286

摘要： Apparatus for diversely routing optical wavelengths across a point-to-point subnetwork. An optical network includes a first optical ring having at least first, second, and third nodes adjacently positioned; a second optical ring having at least fourth, fifth, and sixth nodes adjacently positioned, pairs of optical fibers link the adjacent nodes; a point-to-point subnetwork having at least first, second, third, and fourth optical fibers optically coupling the first and second optical rings. The first node is configured to route working bands across the first optical fiber to the fifth node and to route a copy of the working bands to the second node. The second node is configured to route either the copy of the working bands or a select subset of the copy of the working bands across the third optical fiber to the fourth node.

摘要翻译： 用于通过点对点子网不同地路由光波长的装置。 光网络包括具有至少第一，第二和第三节点相邻定位的第一光环; 具有至少第四，第五和第六节点相邻定位的第二光环，成对的光纤链接相邻的节点; 具有至少第一，第二，第三和第四光纤耦合第一和第二光环的点对点子网络。 第一节点被配置为将工作频带跨越第一光纤路由到第五节点并且将工作频带的副本路由到第二节点。 第二节点被配置为将工作频带的副本或跨第三光纤的工作频带的副本的选择子集路由到第四节点。