Issue 3 June 2000
9-1
9
Maintenance Description
9
Overview
9
This chapter outlines the various features available to the user to maintain and
monitor the DDM-2000 FiberReach Multiplexer. Specific trouble clearing and
maintenance procedures are provided in the operation and maintenance (TOP)
section of this manual.
Wideband Shelf Maintenance
9
Single-Ended Maintenance Philosophy
9
A single-ended maintenance philosophy was originally incorporated in the design
of the DDM-2000 Multiplexers as part of their optimization for operation in the
subscriber loop. The same philosophy is incorporated in the design of the DDM-
2000 FiberReach Multiplexers. DDM-2000 FiberReach Multiplexers allow the
operation of all FiberReach NEs in a subnetwork from a DDM-2000 in a central
office. The DDM-2000 FiberReach Multiplexers use the synchronous optical
network (SONET) data communications channel (DCC) to provide craft interface
terminal (CIT), remote access. In addition, OSs are available to allow operation of
the DDM-2000 Multiplexers from a centralized operations center.
Figure 9-1 shows the single-ended operations (SEO) capability that provides
remote access to all DDM-2000 FiberReach systems in a subnetwork from a
single DDM-2000 location. This minimizes technician travel because most
maintenance, provisioning, and administration can be performed on all DDM-2000
Multiplexers in a subnetwork by accessing any one DDM-2000. This capability is
To Next Page
Loading...
Need help?
General
