363-206-285
Applications
Issue 3 June 2001
2-45
DDM-2000 OC-3 and DDM-Plus or DDM-2000 FiberReach systems provide
bandwidth features to improve the delivery of CENTREX services. In a multisite
campus application (Figure 2-30),
SLC
Series 5 Carrier System RTs and
DDM-Plus optical extensions carry voice traffic from each building to a DDM-2000
OC-3 Multiplexer at a conveniently located remote terminal site. The DDM-2000
OC-3 Multiplexer provides economical and reliable access to the serving
5ESS
â
switch. The OC-3 capacity supports a growing campus, as up to 84 DS1s (2016
voice channels) can be provisioned as needed.
Figure 2-30. Campus CENTREX Configuration
DS1
Series 5
RT
SLC
Protection
Route
DDM-
Plus
DS1
DS1
5ESS
OC-3
DDM-2000
OC-3
DDM-2000
OC-3
Switch
(CENTREX)
BRT-2000
Customer Location C
QUAD
DS1
QUAD
DS1
Customer Location B
Series 5
RT
SLC
BRT-2000
Customer Location A
T1
Central Office
OC-3
Series 5
RT
SLC
DS1
DDM-
Plus
BRT-2000
Series 5
RT
SLC
DS1
DDM-
Plus
BRT-2000
96
96
R
R
R
R
R