Nortel Networks OPTera Metro 3500 - Manual (Page 90)

2-52 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Figure 2-26
Physical connections in a meshed-ring configuration
EX0814t
Figure 2-27
Logical connections in a meshed-ring configuration
EX0815t
OADM–site C
1 2
OADM or
Terminal site
OADM–site B
OADM–site A
3500 3500
3500
3500 3500
3500
OADM or
Terminal site B
1 2
OADM or
Terminal site
OADM–site A OADM–site C
3500
3500 3500
3500
3500 3500