Lucent Technologies FT-2000 OC-48 - Page 423

Administration and Provisioning
Issue 8.0 July 2002
8-19
■ Multiple bridge cross-connections: In Release 5 and later releases, the
FT-2000 OC-48 Add/Drop-Rings Terminal supports multiple bridge
cross-connections. A multiple bridge cross-connection is three or more
superimposed cross-connections sharing the same source. The source
can be any incoming STS-3 tributary of OC-48 high-speed line 1E or 1W,
or any service low-speed interface slot. For example, Figure 8-4 shows
incoming service STS-3 tributary 7 of OC-48 high-speed line 1E
cross-connected to service low-speed interface slots 6A, 6B, 7B, and 8A.
Figure 8-4 also shows service low-speed interface slot 3A cross-connected
to service STS-3 tributaries 1 and 2 of OC-48 high-speed line 1W, and
service STS-3 tributary 3 of OC-48 high-speed line 1E.
Multiple bridge cross-connections can also be made to/from any service
low-speed interface slot and the companion low-speed interface slot (for
example, 2A and 2B) when the slot pair is provisioned for the OC-3 1+1
protected mode. For example, Figure 8-4 shows service low-speed
interface slots 1A and 1B cross-connected to service STS-3 tributaries 6, 7,
and 8 of OC-48 high-speed line 1W.
Figure 8-4. Multiple STS-3 Bridge Cross-Connections at an FT-2000
OC-48 Add/Drop-Rings Terminal
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2
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7
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FT-2000 OC-48 Add/Drop-Rings Terminal
STS-3 Tributaries
1A 3A 8B
OC-48
1E
Low Speed Interface Slots
OC-48
1W
6B
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2
3
4
5
6
7
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Add
Drop
1B 6A 7B
Drop Drop
Add
Add
Add
Add
Add