Lucent Technologies DDM-2000 OC-3

363-206-285
Applications
Issue 3 June 2001
2-5
Figure 2-1. Path Switched Ring
Node C
Node A
Node BNode D
AC
CA
(a.) Normal Operation
Node A
Node BNode D
AC
CA
AC
CA
Node C
AC
CA
(b.) Path Failure
SWITCH
MADE