Lucent Technologies FiberReach DDM-2000 - Page 175

363-206-305
Shelf Descriptions and Configurations
Issue 3 June 2000
3-21
Figure 3-20. DDM-2000 FiberReach with 1x7 Protected T1 Extension Services
This same configuration would also be used for unprotected T1 service, as shown
in Figure 3-21, for a maximum of seven service units per multiplexer.
S
Y
S
C
T
L
Function
Units
O
L
I
U
O
L
I
U
A B C D
(P)
U
S
E
R
P
A
N
E
L
T
1
E
X
T
T
1
E
X
T
T
1
E
X
T
T
1
E
X
T
T
1
E
X
T
T
1
E
X
T
T
1
E
X
T
T
1
E
X
T
(P)
Low Speed
Groups
tpa 843670/01
G2
-U
G2
-U
2
6
2
6
Main*
* 28G-U in Main slots for OC-3
29G-U in Main slots for OC-12