EP 1807954 A1 20070718 - N:1 REDUNDANCY SCHEME FOR MODULES WITH OPTICAL INTERFACES
Title (en)
N:1 REDUNDANCY SCHEME FOR MODULES WITH OPTICAL INTERFACES
Title (de)
N:1-REDUNDANZSCHEMA FÜR MODULE MIT OPTISCHEN SCHNITTSTELLEN
Title (fr)
SCHEMA DE REDONDANCE N:1 POUR MODULES A INTERFACES OPTIQUES
Publication
Application
Priority
- EP 2005055277 W 20051014
- US 61862404 P 20041014
Abstract (en)
[origin: WO2006040354A1] One for N (1:N) redundancy of I/O electronics modules is provided while interfacing to either non-redundant or 1+1 redundant lines. By using a mid-plane architecture which associates front modules with pairs of rear-mounted I/O driver modules and provides a redundancy bus to connect a spare front module to any pair of rear modules , single points of failure are avoided. The rear-mounted I/O modules operate 1+1 redundant to either align with normal SONET/SDH line protection arrangements or to provide 100% capacity redundancy for Ethernet interfaces. In one realization alternative, front and rear modules are paired such that each front module carries half the aggregate capacity of the I/O provided by the 1+1 redundant pair of rear I/O driver modules.
IPC 8 full level
H04J 3/14 (2006.01); H04L 12/56 (2006.01)
CPC (source: EP)
H04J 3/14 (2013.01); H04Q 1/03 (2013.01); H04J 2203/0026 (2013.01); H04J 2203/006 (2013.01); H04L 2012/5627 (2013.01); H04M 3/12 (2013.01); H04Q 2213/13003 (2013.01); H04Q 2213/1301 (2013.01); H04Q 2213/13167 (2013.01); H04Q 2213/13292 (2013.01); H04Q 2213/13299 (2013.01)
Citation (search report)
See references of WO 2006040354A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2005055277 W 20051014; EP 05794533 A 20051014