Lucent Technologies DDM-2000 OC-3 User Manual

363-206-285
Applications
2-10 Issue 3 June 2001
Figure 2-5 shows how DDM-2000 OC-3 and OC-12 Multiplexers can be used
together to provide a path switched ring operating simultaneously at the VT1.5,
STS-1, and STS-3c levels. This ring is especially useful for loop feeder
applications with large bandwidth needs. It can also be developed as a result of
an upgrade from an OC-3 ring in an environment where growth has exhausted the
bandwidth of the OC-3 ring.
Figure 2-5. OC-12 Path Switched Ring Using OC-12 Multiplexer—Mixed STS-1 and VT1.5
Path Switching
DS1, DS3, STS-1E
DACS IV-2000
5ESS Switch
DS3
DDM-Plus
T1
QUAD
DS1
DS1
ISDN
VF, DS0,
DS1
MSDT
VF, DS0, ISDN
Access
System RT
OC-12OC-12
DDM-2000
OC-12
RT Site
Access
System RT
DDM-2000
OC-3
DS1
IS-3 IS-3
IS-3 IS-3 IS-3 IS-3
DDM-Plus
VF, DS0,
DDM-2000
DDM-Plus
OC-3
QUAD
DS1
IS-3
ISDN
T1
QUAD
DS1
DS1
MSDT
VF, DS0, ISDN
OC-12
Customer RT Site
OC-12
DDM-2000
OC-12
RT Site Central Office
OC-12
DDM-2000
OC-3
DDM-2000
IS-3
BRT-2000
DDM-2000
OC-12
EC-1/DS3/OC-3c EC-1/DS3/OC-3c
R
T0: SLC-2000 Series 5 COT
R
SLC -2000
SLC -2000
SLC-2000
SLC-2000
VT or STS-1 TSI

Lucent Technologies DDM-2000 OC-3 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-3
Category	Multiplexer
Language	English