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Chapter 1. Introduction
1-4
TSU 120 User Manual 61202129L1-1
Option Module Architecture
The TSU 120 features a unique architecture that allows you to
add one option module and plug-on board to accommodate
another application. See
Figure 1-1
.
Figure 1-1. TSU Option Modules
TSU 120 CONFIGURATION APPLICATIONS
The following example illustrates possible configurations of
TSU 120 applications.
Router, PBX, Video Conferencing Applications
The base Nx54/64 provides a V.35 interface to a router. The
PBX is interfaced to the TSU 120 with the base DSX-1 interface.
An OCU DP module and OCU DP plug-on board provide two
Switched-56 circuits for video conferencing. The 10BaseT port
allows SNMP network management over the LAN (TSU 120e
only). See
Figure 1-2
.
Figure 1-2. Router, PBX, Video Conferencing Application Set Up
TSU 120
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
TSU 120e
RD1
TD2
RD2
TDN RDN
TD1
ALM
/TST
1
A
C
B
4
D
F
E
SHIFT
DELETE
QUICK
NEXT
PREV
ADD
7
2
5
#
3
6
9
8
0
PBX
VIDEO
CONFERENCING
ROUTER
10 BaseT LAN
SNMP NETWORK
MANAGEMENT WORKSTATION
(TSU 120e only)
TSU 120
TSU 120e
RD1
TD2
RD2
TDN RDN
TD1
ALM
/TST
1
A
C
B
4
D
F
E
SHIFT
DELETE
Q
U
ICK
NEXT
PREV
A
D
D
7
2
5
#
3
6
9
8
0