发明名称 |
PATH PROTECTION IN WDM NETWORK |
摘要 |
A node for use in a WDM optical network, the node comprising a tributary receiver unit for receiving a data signal distributed via the WDM optical network and destined for said node, a path protection switching unit for switching receipt of said data signal at the tributary receiver unit from a working path to a protection path of the WDM optical network, and a control unit for the path protection unit, wherein the control unit comprises a multi rate clock data recovery (CDR) device arranged, in use, to detect a loss of lock (LOL) in the data signal received at the tributary receiver unit based on a comparison of an actual data rate received and a pre-programmed reference rate for said data signal.
|
申请公布号 |
WO03067795(A1) |
申请公布日期 |
2003.08.14 |
申请号 |
WO2003AU00114 |
申请日期 |
2003.02.05 |
申请人 |
REDFERN BROADBAND NETWORKS, INC.;HALGREN, ROSS;BROWN, BRIAN, ROBERT |
发明人 |
HALGREN, ROSS;BROWN, BRIAN, ROBERT |
分类号 |
H04J14/02;(IPC1-7):H04J14/02;H04L29/14 |
主分类号 |
H04J14/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|