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Applications
Issue 3 June 2000
2-7
OC-12 Path Switched Ring
2
A DDM-2000 FiberReach can be equipped with OC-12 optics. This option offers a
cost effective solution at locations where the dropped traffic is primarily VT1.5
based and is accessed from any one of the 12 STS-1s. FiberReach multiplexers
equipped with OC-12 optics in Release 4.0 and later can be mixed in the same
OC-12 ring. The OC-12 multiplexers can be used at sites requiring DS3 and other
higher bandwidth STS path-switched traffic, while the FiberReach multiplexer is
used at sites requiring VT path access for DS1, T1, etc. Figure 2-3 shows an OC-
12 ring that includes both OC-3, OC-12, and FiberReach multiplexers.
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