Applications
Issue 8.0 July 2002
2-27
All cross-connections in this video application are 1-way STS-3 cross-connections
from the video server to the customer. Because the corresponding return path has
no input signal, the FT-2000 OC-48 Add/Drop-Rings Terminal reports a trouble
condition. In Release 6 and later releases, the FT-2000 OC-48 Add/Drop-Rings
Terminal may be provisioned to disable reporting this trouble condition. For more
information about provisioning, refer to Volume I, Section 8, “Administration and
Provisioning,” and the “Operation and Maintenance (TOP)” section (Volume II).
In Release 5, the OC-3 interface should be used where the OC-3 section DCC
and integrated single-ended operations, via an OC-3 line, are not required. In
Release 6 and later releases, the FT-2000 OC-48 Add/Drop-Rings Terminal
supports the OC-3 section DCC and integrated single-ended operations with other
FT-2000 OC-48 Add/Drop-Rings Terminals, via an OC-3 line. For more
information about the single-ended operation capabilities, refer to the “Operations
Interworking” application in this section.
For more information about operations interworking between the FT-2000 OC-48
Lightwave System and the DDM-2000 Multiplexers, refer to 824-102-147,
Lucent
Technologies 2000 Product Family Operations Interworking Guide
.
Path-In-Line Architecture 2
The FT-2000 OC-48 Add/Drop-Rings Terminal equipped with Release 6.0.0-ADR
or later software supports the path-in-line architecture (Figure 2-12). The
path-in-line architecture allows part of the bandwidth of an OC-48 bidirectional
line-switched ring to be part of an OC-3 path-switched ring. Similarly, with
Release 7.1 or later software, this architecture allows part of the bandwidth of an
OC-48 bidirectional line-switched ring to be part of an OC-12 path-switched ring.
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