363-206-305
Applications
2-54
Issue 3 June 2000
Integrated DS1, T1, and DS0 Services
2
Integrated Narrowband Business Carrier Access
2
Figure 2-41 shows a business narrowband application using the DDM-2000
FiberReach Multiplexer on an OC-1 path-switched ring. This application provides
protected POTS, ISDN, and special services, as well as DS1 services on a
protected OC-1 fiber. This ring host is an OC-3/OC-12 path-switched ring via a
SLC
-2000 ARM or a DDM-2000 Multiplexer. The FiberReach product in this
application contains both the wideband and narrowband shelves. The narrowband
shelf has the capacity to provide telephony services such as POTS and POTS-like
special services or basic rate ISDN service, while the wideband shelf provides
DS1 rate services. The narrowband shelf contains 12 slots for service cards that
provide up to 48 lines of POTS service.
At the wire center, the DS0 services are groomed by the
SLC
-2000 remote
terminal and sent either to the
5ESS
switch for locally switched traffic or to the
DACS II Cross-Connect System for non-locally switched traffic. The DS1 traffic
goes directly to a DACS-IV 2000 Cross-Connect System.
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