Lucent Technologies FT-2000 OC-48 - Page 426

Administration and Provisioning
8-22 Issue 8.0 July 2002
2-Way Cross-Connections 8
The FT-2000 OC-48 Add/Drop-Rings Terminal provides a time slot assignment
(TSA) capability that supports the following 2-way cross-connections:
■ Add/drop cross-connections: Add/drop cross-connections are made
between any service low-speed interface slot and any 155 Mb/s (STS-3)
tributary of OC-48 high-speed line 1E or 1W. For example, Figure 8-6
shows service low-speed interface slot 2B cross-connected to service
STS-3 tributary 6 of OC-48 high-speed line 1W. (In 2-fiber bidirectional
rings, STS-3 tributaries 1 through 8 are service tributaries and STS-3
tributaries 9 through 16 are protection tributaries.)
Figure 8-6. STS-3 2-Way Cross-Connections at an FT-2000 OC-48
Add/Drop-Rings Terminal
1
2
3
4
5
6
7
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9
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16
FT-2000 OC-48 Add/Drop-Rings Terminal
STS-3 Tributaries
1A 2B 8B
OC-48
1E
Low Speed Interface Slots
OC-48
1W
6B
1
2
3
4
5
6
7
8
9
10
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16
Through
Add/Drop
Add/Drop
Add/Drop
8A