Lucent Technologies DDM-2000 OC-3 User Manual

363-206-285
Administration and Provisioning
8-66 Issue 3 June 2001
Dual-Homed OC-3/OC-1 Path-Switched Ring
Example 8
Dual-homing offers even more survivability than a single-homed network, as even
the catastrophic failure of a host node can be protected. Figure 8-9 shows an
example of a dual-homed OC-1 extension from two remote nodes on an OC-3
access ring. The NEs on the OC-3 ring can be either DDM-2000 OC-3
Multiplexers or
SLC -2000 Access Systems.
Figure 8-9. Example Dual-Homed OC-3/OC-1 Path-Switched Ring Configuration
Cross-Connections
OLIU
IN
OUT
OLIU
IN
OUT
Ring 2
Ring 1
OLIU
IN
OUT
OLIU
IN
OUT
OLIU
IN
OUT
OLIU
IN
OUT
OLIU
IN
OUT
OLIU
IN
OUT
Ring 1
MAIN 1MAIN 2
MAIN 1MAIN 2
MAIN 1 MAIN 2 MAIN 1 MAIN 2
FIBERREACH
RT4
RT3
OC-3 RING
Ring 2
Ring 1
Ring 2
MAIN 1 MAIN 2
DS1s
RT1
OLIU
IN
OUT
OLIU
IN
OUT
MAIN 2 MAIN 1
RT2
CO
DS1s
OC-1OC-1
OC-1 RING
LS-A
LS-B
LS-C LS-D
FN-A
FN-B
FN-C
FN-A
FN-B
FN-C
FN-A
FN-B
FN-C
FN-A
FN-B
FN-C FN-A
FN-B
FN-C

Lucent Technologies DDM-2000 OC-3 Specifications

General

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