| 发明名称 | Method and apparatus for fault discovery in a passive optical network (PON) | ||
| 摘要 | An apparatus and method for fault indication and localization in a Passive Optical Network (PON) comprising a multistage power splitter (100, 200, 300) with at least one 1:N splitter (120, 221, 222, 321, 322) followed by N items of 2:M splitters (131, 132, 231-233, 331-336), wherein N and M are integers greater than 1. The apparatus also comprises an Optical Time Domain Reflectometry (OTDR) device (110, 210, 310) capable of inserting an OTDR signal into the power splitter (100, 200, 300), and adapted to insert the OTDR signal between the first stage of the at least one 1:N splitter (120, 221, 222, 321, 322) and the second N items of 2:M splitters (131, 132, 231-233, 331-336). | ||
| 申请公布号 | US9042723(B2) | 申请公布日期 | 2015.05.26 |
| 申请号 | US201013266218 | 申请日期 | 2010.01.15 |
| 申请人 | Telefonaktiebolaget L M Ericsson (publ) | 发明人 | Dahlfort Stefan |
| 分类号 | H04B10/08;H04B10/00;G01M11/00;H04B10/071 | 主分类号 | H04B10/08 |
| 代理机构 | Myers Bigel Sibley & Sajovec, P.A. | 代理人 | Myers Bigel Sibley & Sajovec, P.A. |
| 主权项 | 1. An apparatus for fault discovery in a Passive Optical Network, comprising: a multistage power splitter comprising a first stage including at least one 1:N splitter followed by a second stage including N items of 2:M splitters, wherein N and M are integers greater than 1; and an Optical Time Domain Reflectometry (OTDR) device configured to insert an OTDR signal into the power splitter, and adapted to insert the OTDR signal between the first stage including at least one 1:N splitter and the second stage of N items of 2:M splitters; wherein the OTDR device is connected to an Optical Switch (OS) or a Wavelength Division Multiplexor (WDM) having one input connected to the output of the OTDR device and N*K outputs connected to the inputs of the N items of 2:M splitters, wherein K is a number of Optical Line Terminals (OLT). | ||
| 地址 | Stockholm SE | ||