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Chapter 1. Introduction
61202156L2-1A TDU 120e User Manual 1-5
Option Module Architecture
The TDU 120e features a unique architecture that allows
the addition of one option module and plug-on board
providing an opportunity for growth to accommodate an-
other application. See Figure 1-1.
Figure 1-1. TDU 120e Option Modules
DSX-1
Module
Plug on
V.35
Plug on
OCU DP
Plug on
Dual Voice
OCU-DP
Module
V.35
Module
D&I
Module
DUAL
Voice
A
C
O
R
E
M
O
T
E
A
C
C
E
S
S
C
R
A
F
T
T
D
U
1
2
0
e
A
C
N
E
T
W
O
R
K
M
O
N
I
N
O
U
T
I
N
O
U
T
I
N
O
U
T
I
N
O
U
T
P
O
R
T
0
.
2
M
O
N
I
N
O
U
T
I
N
O
U
T
P
O
R
T
1
.
1
M
O
N
T
E
S
T
O
K
Y
E
L
R
E
D
A
L
A
R
M
E
R
R
O
R
N
E
T
W
O
R
K
S
T
A
T
U
S
T
E
S
T
O
K
A
L
A
R
M
P
O
R
T
S
T
A
T
U
S
0
.
1
0
.
2
1
.
1
1
.
2
1
.
3
1
.
4
TDU 120e