Lucent Technologies DDM-2000 OC-3 User Manual

363-206-285
Applications
2-38 Issue 3 June 2001
OC-1 Ring Hairpin Routing, Single-Homed 2
This routing option establishes cross-connections between channels on two
separate OC-1 facilities that terminate on 27G2-U OLIU circuit packs, in either the
same or different function units as shown in Figure 2-24. In the single-homed
configuration, both rotations of each of the two OC-1 rings terminate on a pair of
27G2-U OLIUs. There may be a single pair of 27G2-U OLIUs that terminates both
rings, or one pair of 27G2-U OLIUs in each of two function units that terminates
the rings. Each rotation of one ring is cross-connected to the corresponding
rotation of the other ring. This allows traffic to be routed from one FiberReach
node on one OC-1 ring, to any other FiberReach node on another OC-1 ring,
without using bandwidth on the OC-3/OC-12 ring.
Figure 2-24. Single-Homed Hairpin Routing
DDM-2000
FiberReach
OC-1
DDM-2000 OC-3
DDM-2000
FiberReach
DDM-2000
FiberReach
OC-1
DDM-2000
FiberReach
OC-3/OC-12
RING
DS1/T1 DS1/T1

Lucent Technologies DDM-2000 OC-3 Specifications

General

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