Lucent Technologies FiberReach DDM-2000 - Page 147

363-206-305
Applications
Issue 3 June 2000
2-61
Figure 2-46. DSX-1 Electrical Interface — SONET Transport (Integrated Configuration)
DDM-2000
OC-3
shelf
WBS
WBS
WBS
DS1s DS1
48
customer
lines
DS1
LIU
DS1
LIU
DS1
C
h
a
n
n
e
l
u
n
I
t
s
S
w
I
t
c
h
I
n
t
e
r
f
a
c
e
OC-1
OC-1
OC-1
OC-1
slrintwbs
LDS
Non-switched and
non-locally switched
special services
Digital
cross
connect
or D4
channel
bank
SLC LineReach
Access System
remote terminal
(RT)