Lucent Technologies FT-2000 OC-48 - Example of Limited STS-1 Cross-Connections in a 2-Fiber Bidirectional Ring

Administration and Provisioning
Issue 8.0 July 2002
8-81
Entering Circuit Information in the STS-1 Squelch Map (Releases 7.0 and
Earlier Releases) 8
Figure 8-26 shows DS3 circuits that have been established on a 2-fiber
bidirectional ring with 2-way STS-3 cross-connections at FT-2000 OC-48
Add/Drop-Rings Terminals. Figure 8-17 also shows a DS3 circuit that has been
established with limited STS-1 cross-connections using external loopback cables
at a DSX-3 cross-connect panel (node 1). The
CONFIGURATION-Enter-Crossconnection-STS3 input is used to enter
2-way cross-connections. For more information about entering 1-way and 2-way
cross-connections, refer to "Entering 1-Way and 2-Way Cross-Connections" in
this section.
Figure 8-26. Example of Limited STS-1 Cross-Connections in a 2-Fiber
Bidirectional Ring
Node 0
1W 1E
1A 2B 8B
16
1
OC-48
16
1
6
Node 1
1W 1E
1A 8B
16
1
16
1
6
6
Node 3
1E 1W
1A 8B
16
1
OC-48
16
1
Node 2
1E 1W
1A 8B
16
1
16
1
6
OC-48OC-48
3A
66
7A
DSX-3
123
DSX-3
123
7A
123
DSX-3
123