363-206-305
System Introduction
1-4
Issue 3 June 2000
feel that matches the DDM-2000 OC-3 and OC-12 Multiplexers. The
DDM-2000 FiberReach Multiplexer fits into the already existing
SONET networks and interworks with the existing OSs. Remote
operations are via the International Standards Organization (ISO)
standard 7-layer open systems interconnection (OSI) protocol, while
a user panel and craft interface terminal (CIT) port support local
operations needs. Complete performance-monitoring features,
including DS1 path performance monitoring, permit the service
provider to verify the quality of service based on key tariffs.
— The HDSL circuit pack (BBF8) provides HDSL interface capability
on the DDM-2000 OC-3 shelf to compatible
PairGain
*
equipment at
the customer premises. It allows the transport of DS1 rate payloads,
for up to 12,000 feet, over two metallic 24 AWG twisted-pair lines.
Application for business customers, the private network, cell sites,
PBXs, customer premises equipment (CPE), and other applications
are supported. The DDM-2000 FiberReach wideband shelf supports
DS1, HDSL (with 28-type OLIUs) and T1 carrier extension
interfaces. The DS1 interface accepts any DSX-1 compatible signal
(clear channel interfaces). When equipped with 28-type OLIUs, the
shelf supports 1 protected or 2 unprotected DS3 interfaces, or a
single OC-3c interface.
■
Narrowband Shelf
— Which can be used together or separately in a variety of
configurations. The narrowband shelf supports all of the services
that are currently supported by Lucent's
SLC
-2000 Multi-Services
Distant Terminal (MSDT) product but has two times the capacity to
serve customers by requiring a concentration of special services at
a single site. The channel units housed in the narrowband module
are the
SLC
-2000 channel units.
— Which can be used for telephony applications, complete remote
operations, such as channel unit provisioning and integrated testing,
are available through the
SLC
-2000 host. The
SLC
-2000 host also
creates the link into the
5ESS
electronic switch for TR08 or TR303
communications.
Together, the wideband and narrowband shelves can be deployed in outside plant
or customer premises enclosures (including wall mounted) or can be rack-
mounted.
The DDM-2000 FiberReach Multiplexer has a phased release plan. This manual
covers Releases 3.0 and later of the DDM-2000 FiberReach Multiplexer. The
manual will be updated to cover additional releases as they become available.
* PairGain is a registered trademark of PairGain Technologies, Inc.
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