公开(公告)号：US07817540B1

公开(公告)日：2010-10-19

申请号：US10141893

申请日：2002-05-08

申请人： Feisal Daruwalla ,  John T. Chapman ,  Richard Meller ,  Roland Chan ,  Nicos Achilleoudis

发明人： Feisal Daruwalla ,  John T. Chapman ,  Richard Meller ,  Roland Chan ,  Nicos Achilleoudis

IPC分类号： G01R31/08

CPC分类号： H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04N21/239

摘要： The present disclosure relates an improved cable data switching unit that provides a fail-over system whereby one line card can protect a plurality of US (upstream) or DS (downstream) channel line cards, providing N+1 protection, with one linecard being able to protect N number of working linecards. When a failure is detected in a working linecard, the signals being routed by the failing linecards are re-routed seamlessly to a protect linecard. This disclosure provides for data to be passively routed, providing for data flow even if power is lost.

摘要翻译： 本公开涉及一种改进的电缆数据交换单元，其提供故障转移系统，由此一个线路卡可以保护多个US（上游）或DS（下游）信道线路卡，提供N + 1保护，一个线卡可以 保护N个工作线卡。 当在工作线卡中检测到故障时，由故障线路卡路由的信号将无缝地重新路由到保护线卡。 该公开内容提供了被动地路由的数据，即使断电也提供数据流。