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Option Module Architecture
61202156L2-1A
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.
TDU 120e
REMOTE
ACCESS
CRAFT
NETWORK
MON
PORT 0.2
IN
OUT
MON
ACO
IN
OUT
IN
OUT
IN
OK
RED
OUT
TEST
YEL
OK
TDU 120e AC
ALARM
ERROR
TEST
NETWOR K
ALARM
STATUS
PORT 1.1
0.1
0.2
1.1
1.2
PORT STATUS
1.3
1.4
IN
OUT
TDU 120e User Manual
MON
IN
OUT
Figure 1-1. TDU 120e Option Modules
Chapter 1. Introduction
DSX-1
Module
OCU-DP
Module
V.35
Module
D&I
Module
DUAL
Voice
Plug on
V.35
Plug on
OCU DP
Plug on
Dual Voice
1-5
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