Lucent Technologies FiberReach DDM-2000 - Page 172

363-206-305
Shelf Descriptions and Configurations
3-18
Issue 3 June 2000
Figure 3-17. DDM-2000 FiberReach 1X7 Protected DS1 Services Only
This same configuration would also be used for unprotected DS1s, as shown in
Figure 3-18. The low-speed interface growth proceeds in four DS1 increments by
equipping the low-speed slots with DS1 or DS1PM circuit packs for a maximum of
seven service units per multiplexer.
S
Y
S
C
T
L
U
S
E
R
P
A
N
E
L
D
S
1
D
S
1
Function
Units
2
6
O
L
I
U
2
6
O
L
I
A B C D
D
S
1
D
S
1
D
S
1
D
S
1
D
S
1
D
S
1
(P)
U
(P)
Low Speed
Groups
tpa 843668/01
G2
-U
G2
-U
* 28G-U for OC-3
29G-U for OC-12
Main*