Lucent Technologies DDM-2000 OC-12 User Manual

363-206-295
Shelf Descriptions and Configurations
3-12 Issue 1 December 1997
OC-12 Ring Configuration (DS1/EC-1 Low-Speed
Interfaces) 3
Figure 3-7 shows an OC-12 configuration using DS1/EC-1 low-speed interfaces.
Interface to the low-speed shelf is made through the IS-3 (or OC-3) circuit packs,
one service and one protection pack per interface. The IS-3 circuit packs replace
the OLIU circuit packs in the main slots on the DDM-2000 OC-3 shelf. This
configuration supports a high-speed OC-12 interface with 84 DS1 terminations
per DDM-2000 OC-3 shelf, up to a maximum of 336 DS1 terminations.
Figure 3-7. OC-12 Ring Configuration (DS1/EC-1 Low-Speed Interfaces)
MMMM
OOOO
A
B
G
12
G
1
7
7
A
B
1
7
7
T
T
T
S
I
T
S
I
112(P) 2(P) 1
L
I
U
L
I
U
L
I
U
L
I
U
P
P
B
L
K
12
U
2(P) 2(P)
P
P
B
L
K
O
L
I
1 2(P)
1
E
S
Y
S
C
T
L
O
H
C
T
L
U
S
E
R
DDM-2000
P
A
N
E
L
OC-12 Shelf
1
U
O
L
I
DDDDDDDDD
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
D
S
1
D
S
1
D
S
1
O
S
Y
U
S
E
T
MM
G
X
R
X
R
X
R
X
R
VVVV
X
R
X
R
VV
2
T
G
O
L
I
U
O
L
I
U
OOOOOO
111
1
1 2(P) 2(P) 2(P) 2(P)
1
P
B
L
K
P
B
L
K
2(P)
1
7
7
C
A
P
1
7
7
C
A
P
5 6 7 8(P) 5 6 7 8(P)
D
S
D
S
D
S
D
S
D
S
D
S
D
S
D
S
567
D
S
D
S
D
S
DDM-2000
H
C
S
T
C
8(P)
D
S
L
T
L
OC-3 Shelf
R
P
A
N
123
111
12344
11111
123
111
4
1
E
L
567
M
X
R
M
X
R
M
X
R
M
X
R
M
X
R
X
R
T
G
2
D
S
1
D
S
1
D
S
1
M
8(P)
567
D
S
1
D
S
1
D
S
1
D
S
1
D
S
1
8(P)
VVVVVV
T
G
D
S
D
S
D
S
567
D
S
1
D
S
1
D
S
1
D
S
D
S
D
S
D
S
D
S
D
S
D
S
D
S
123
1
1111
111
2(P) 2(P) 2(P) 2(P) 1 2 312344
11111111
OOOOOO
O
L
I
U
O
L
I
U
DDM-2000
D
S
1
D
S
O
H
C
T
L
S
Y
S
C
T
L
U
S
E
R
P
A
N
E
8(P)
OC-3 Shelf
4
1
L
3
S
T
S
1
E
3
S
T
S
OC-3/IS-3
OC-3/
IS-3

Lucent Technologies DDM-2000 OC-12 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-12
Category	Multiplexer
Language	English