Nortel Networks 10292FA, 10396EA manual Cwdm Omux in a ring application

24Chapter 1 Describing the optical routing system

Figure 9 CWDM OMUX point-to-point configuration example

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OMUX OMUX

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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.

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