363-206-305
Maintenance Description
9-2
Issue 3 June 2000
provided by the DDM-2000 Multiplexers in all subnetwork topologies as long as
DCC connectivity is available. The SEO capability can be disabled between DDM-
2000 shelves to create subnetwork maintenance boundaries (for example,
interoffice applications) or for security reasons.
All single-ended operations features are also available for
SLC
-2000 Access
Systems. See LTP 363-208-000,
SLC-2000 Access System, Applications,
Planning, and Ordering Guide
, for more information.
The terms single-ended maintenance and single-ended operations (SEO) are
synonymous and have traditionally been used to refer to operations among DDM-
2000 systems only. Now that SEO is supported among the 2000 Product Family
NEs as well as in multi-vendor applications, the term operations interworking (OI)
is more commonly used. OI among multi-vendor NEs is covered later in this
chapter.
DDM-2000 FiberReach supports Lucent Technologies 2000 Product Family OI
with DDM-2000 OC-3 and OC-12, SLC-2000 and FT-2000, and supports
multi-vendor OI in subnetworks with other vendor NEs such as Tellabs TITAN
5500.
Figure 9-1. DDM-2000 FiberReach Wideband Shelf Single-Ended Operations
Philosophy
Single-Ended Operations
DDM-2000
CIT
Remote
Operation
Center
DDM-2000
User Panel
Local and Remote Operations:
CIT Access From CO and OS (Via Data Network)
User Panel Access
Legend:
SONET
DCC
enabled
TL1/X.25
or
VF Line/Modem
Alarm Status and Reports to OS
Provisioning From OS
DDM-2000 Fiber Reach
DDM-2000 Fiber Reach
OC-3
OC-1
OC-1
To Next Page
Loading...