Lucent Technologies FT-2000 OC-48 - Dual Ring Interworking Application with the DDM-2000 OC-3 Multiplexer

Applications
Issue 8.0 July 2002
2-15
Figure 2-7. Dual Ring Interworking Application with the
DDM-2000 OC-3 Multiplexer
OC-3
FT-2000*
1
DDM-2000
OC-3
2
DDM-2000
OC-3
4
DDM-2000
OC-3
5
Primary
DRI Node
CO 1 with intraoffice DRI connection
OC-3
DRI Node
DDM-2000
OC-3
6
Secondary
DRI Node
FT-2000*
3
DDM-2000
OC-3 Ring
(or OC-12)
Loop Feeder
CO 2 with optically extended
DRI connection
Interoffice Network
FT-2000 OC-48
2-Fiber Ring
DS1s
dropped
locally
DRI Node
OC-48
DRI-Protected
Tributary
*
FT-2000 OC-48 Add/Drop-Rings Terminal (Release 5 and later)
nc-ft2000-029