363-206-305
Applications
Issue 3 June 2000
2-43
DDM-2000 FiberReach Service Applications
Using the 29-Type OLIU (Release 4.0, TARP)
2
The following figures show service applications of the DDM-2000 FiberReach
Multiplexer using the 29-type OLIU. In Figure 2-33, the FiberReach multiplexer is a
network element on an OC-12 path switched ring with a DDM-2000 OC-3 host
shelf in the Central Office. The host shelf provides timing to other NEs on the ring
and serves as a gateway NE to a TL1 based operation support system. Fiber
connections are between main OLIUs. The FiberReach shelf provides a DS3
interface and up to 28 DS1 service interfaces, or a mix of DS1, T1, and HDSL.
Figure 2-34 is an example application in which the FiberReach Multiplexer is a
node in an OC-3 ring carried on an OC-12 or OC-48 ring.
Figure 2-33. OC-12 Ring Mixed Application
DDM-2000
OC-3
DDM-2000
OC-3
SLC-2000
24 or 29* type OLIU
24 or 29* type OLIU 24 or 29* type OLIU
DS1
Central Office
tpa 853761/06
DDM-2000
FiberReach
OC-12 Path Switched Ring
29G type OLIU
R15.0
R4.0
DS1
HDSL
DS3
OC-3
DS3
OC-3
R15.0
* Supported by
Release 15.0
DS1/T1 or
HDSL
DS3
DS3 Data
R15.0
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