Lucent Technologies DDM-2000 OC-3 User Manual

363-206-285
Applications
Issue 3 June 2001
2-61
Since the STS-3c traffic is received by the low-speed interfaces and transmitted
as two copies on the OC-12 ring (one clockwise, one counterclockwise), the ring
capacity is limited to the OC-12 line rate.
Figure 2-42. Locked (0x1) STS-3c - Broadband Services Using DDM-2000 OC-3 Multiplexer
With OC-12 Optics
OC-12
OC-12
AT M
Switch
(B)
DDM-2000
OC-3
OC-3c
OC-3c
OC-12
DDM-2000
OC-12
DDM-2000
OC-3
DDM-2000
OC-3
OC-12
m1
m2
m2
m2
m2
m1
m1
m1
Fn-c-1
Fn-c-1
Fn-c-1
Fn-c-2
Fn-c-2Fn-c-1
Fn-c-2
Fn-c-2
AT M
Switch
(A)
AT M
Switch
(D)
AT M
Switch
(C)
OC-3cOC-3c
OC-3c OC-3c
OC-3c
OC-3c
tpa851635-01

Lucent Technologies DDM-2000 OC-3 Specifications

General

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