Lucent Technologies DDM-2000 OC-3 User Manual

363-206-285
Applications
2-60 Issue 3 June 2001
Figure 2-41. OC-12 STS-1 Drop-and-Continue to DS3 Interfaces
Locked STS-3c (0x1) Broadband Services 2
Beginning with Release 5.0 DDM-2000 OC-12 Multiplexer and with Release 15.0
DDM-2000 OC-3 Multiplexer (when the MAIN slots are equipped with 29-type
OLIU OC-12 optics) the OC-12 ring will transport STS-3c 0x1 services through 22-
type OLIU (in OC-3 NEs).
STS-3c path switching does not take place on the DDM-2000 OC-12 ring; it is
executed elsewhere in the network (e.g., when the OC-12 ring transports ATM
STS-3c traffic path switching is performed through the external ATM-based
router).
Figure 2-42 shows an STS-3c 0x1 application. Each OC-12 node provisions the
same dropped STS-3c time slot as other nodes on the same ring. For different
applications, an OC-12 node can assign the other STS-3cs to different time slots
at different sites. With 0x1 applications the OC-12 ring passes the contents of
these STS-3c time slots between the low-speed OC-3/IS-3 lines and the OC-12
high-speed lines without terminating them or performing path protection switching.
DDM-2000
OC-3
DS1
OC-3
EC-1
CO 1
DDM-2000
OC-3
DACS IV-
2000
DDM-2000
OC-12
DS3
EC-1
CO 2
DDM-2000
OC-3
DACS IV-
2000
DDM-2000
OC-12
DS3
DDM-2000
OC-3
DS1
DS1
DS3
DDM-2000
OC-12
DS3
CO 3
DDM-2000
OC-12
DS3
CO 4
DDM-2000
OC-12
OC-12
DS3
DDM-2000
OC-12
SLC -2000
R
OC-3

Lucent Technologies DDM-2000 OC-3 Specifications

General

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