Lucent Technologies DDM-2000 OC-3 User Manual

363-206-285
Applications
Issue 3 June 2001
2-37
OC-1 Ring Pass-Through 2
This enhanced routing option establishes pass-through cross-connections for
channels on an OC-1 ring terminating on a pair of 27G2-U OLIUs in a function unit
as shown in Figure 2-23. These cross-connections are just like the pass-through
cross-connections that can be provisioned for rings terminating on main slots.
This allows traffic to be routed from one FiberReach node to another FiberReach
node on the same OC-1 ring without using bandwidth on the OC-3/OC-12 ring.
Figure 2-23. OC-1 Ring Pass-Through in a Function Unit
RT HOST NODE
DDM-2000/
OC-3/OC-12
SLC
R
-2000
RT HOST NODE
DDM-2000/
SLC
R
-2000
DDM-2000/
SLC
R
-2000
CENTRAL OFFICE
DS1/EC-1/IS-3/OC-3
DDM-2000
FiberReach
DDM-2000
FiberReach
OC-1
DS1/T1
DS1/T1

Lucent Technologies DDM-2000 OC-3 Specifications

General

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