Dwdm Configurations - Nortel NTRN10AN Planning Manual

2-50 Operation, administration, and maintenance (OAM) features

DWDM configurations

The following OMX configurations are supported:
•
•
•
Hubbed-ring configuration
The hubbed-ring configuration is optimized for traffic flows that are
characteristic of access networks. For an example of a hubbed-ring
configuration, see
Each OPTera Metro 3500 shelf can support one fully protected optical channel
between the OADM shelf and the terminal, or two unprotected channels. More
than one OPTera Metro 3500 shelf can be installed at an OADM site to provide
additional add/drop capacity as required.
Multiple OPTera Metro 3500 shelves are installed at the terminal, one for each
OADM shelf in the hubbed ring. Four wavelengths are grouped into one band.
The same wavelength band is assigned to the terminal shelf and the
corresponding OADM shelf.
Figure 2-24
Physical connections in a hubbed-ring configuration
OPTera Metro 3500 Multiservice Platform
hubbed-ring
a meshed-ring
linear point-to-point
Figure 2-24
OADM site
OMX
3
NTRN10AN
and Figure 2-25.
Terminal site
OMX OMX OMX
1 2
3
Rel 12.1 Standard Iss 1 Apr 2004
EX0812t
OADM site
OMX
1
OMX
2