Optical Multiplexer In A Point-To-Point Application - Avaya 8800 Planning And Engineering

Figure 7: OADM ring configuration example
For information about calculating network transmission distance, see
distance on page 45.

Optical multiplexer in a point-to-point application

Point-to-Point (PTP) optical networks carry data directly between two end points without
branching out to other points or nodes. Point-to-Point connections (see the following figure)
are made between mux/demuxs at each end. Point-to-Point connections transport many
gigabits of data from one location to another to support applications, such as the linking of two
data centers to become one virtual site, the mirroring of two sites for disaster recovery, or the
provision of a large amount of bandwidth between two buildings. The key advantage of a Point-
to-Point topology is the ability to deliver maximum bandwidth over a minimum amount of fiber.
Each CWDM optical multiplexer/demultiplexer (OMUX) supports one network backbone
connection and four or eight connections to GBICs or SFPs. Typically, two OMUXs are installed
Planning and Engineering — Network Design
Multiplexer applications
Transmission
November 2010 43