Lucent Technologies FT-2000 OC-48 - OC-48 Add;Drop-Rings Terminal for 2-Fiber Rings Transmission Block Diagram; Add;Drop-Rings Terminal

Control, Transmission, and Synchronization Interfaces
Issue 8.0 July 2002
5-5
Transmission 5
FT-2000 OC-48 Add/Drop-Rings Terminal 5
The FT-2000 OC-48 Add/Drop-Rings Terminal for 2-Fiber Rings allows groups of
three DS3 signals, three EC-1 signals (available in Release 4 and later releases),
one OC-3 signal (available in Release 5 and later releases), and/or GNE OC-12
(available in Release 7 and later) to be easily added/dropped while the through
traffic is passed on without requiring low speed interface circuit packs. In Release
7 and later releases, the FT-2000 OC-48 Add/Drop-Rings Terminal for 2-Fiber
Rings also allows single DS3 and/or EC-1 signals to be added/dropped while the
through traffic is passed on without requiring low speed interface circuit packs. A
bidirectional ring capability allows the FT-2000 OC-48 Add/Drop-Rings Terminal
for 2-Fiber Rings to be used in 2-fiber bidirectional line-switched ring applications.
Figure 5-3 shows a transmission block diagram of the FT-2000 OC-48
Add/Drop-Rings Terminal for 2-Fiber Rings.
Figure 5-3. FT-2000 OC-48 Add/Drop-Rings Terminal for
2-Fiber Rings Transmission Block Diagram
OC-48
1-8
1-8
TRMTR
RCVR
OC-48
1-8
1-8
Protection 1
Service 2
Service 1
Protection 2
OC48
OC48
RCVR
OC48
TRMTR
OC48
Low Speed
Interface
1W 1E
Service 1
Protection 2
Service 2
Protection 1
9-16
9-16
9-16
9-16