Lucent Technologies DDM-2000 OC-3

363-206-285
Transmission and Synchronization Interfaces
Issue 3 June 2001
5-27
Figure 5-18. OC-1/OC-1 Function Unit Hairpin Ring—Intra-Function Unit
Dual Homing
O
L
I
U
O
L
I
U
Main-1
Main-2
FN ( )-2
OC-1
OC-1
DDM-2000
OC-3 Shelf
26-type
OLIU
26-type
OLIU
Main-1
Main-2
FN ( )-1
FN ( )-2
OC-1
OC-1
26-type
OLIU
26-type
OLIU
Line 1
Line 2
Line 1
Line 2
O
L
I
U
O
L
I
U
DDM-2000
OC-3 Shelf
FN ( )-1
27G2-U
OLIU
27G2-U
OLIU
* Main -1
* Main -1
* Main -2
* Main -2
DDM-2000
FiberReach
Shelf
DDM-2000
FiberReach
Shelf
DS1/T1DS1/T1
* Main OLIUs required for hairpin cross-connects
tpa 851671/01