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24 Chapter 1 Describing the optical routing system
212257-B
Figure 9
CWDM OMUX point-to-point configuration example
For information about calculating network transmission distance, see Chapter 2,
“Calculating transmission distance,” on page 27.
CWDM OMUX in a ring application
CWDM OMUXs are also used as the hub site in CWDM OMUX-based ring
applications (Figure 10). Two CWDM OMUXs are installed in the optical shelf at
the central site to create an east and a west fiber path. The CWDM OMUX on the
left is typically called the east path and the one on the right is called the west path.
This way the east CWDM OMUX terminates all the traffic from the east
equipment port of each OADM on the ring and the west CWDM OMUX
terminates all of the traffic from the west equipment port of each OADM on the
ring. In this configuration the network remains viable even if the fiber is broken at
any point on the ring.
CARRIER
HOTEL SITE A
CARRIER
HOTEL SITE B
OMUXOMUX
OMUX OMUX
PP 8600
PP 8600 PP 8600 PP 8600
10325EA