Lucent Technologies DDM-2000 OC-12 - OC-312 to FT-2000 OC-48 Lightwave System Dual Ring Interworking

363-206-295
Applications
Issue 1 December 1997 2-19
Figure 2-11. OC-3/12 to FT-2000 OC-48 Lightwave System Dual Ring Interworking
FT-2000
OC-48
DDM-2000
OC-3/12
FT-2000
OC-48
DDM-2000
OC-3/12
DDM-2000
OC-3/12
FT-2000
OC-48
OC-48OC-48
CO #2
CO #1
OC-48
OC-3/12
2-Fiber Bidirectional
Line Switched Ring
DS1/DS3/EC-1/OC-3
OC-3/12
OC-3/12
DS3/EC-1
VT1.5/STS-1
drop & continue
EC-1/
OC-3
EC-1/
OC-3