Chapter 1. Introduction
4
TSU 120 User Manual
61200.129L1-1
DSX-1 Port
RJ-45 connector for the DSX-1
Connection
port (terminal equipment)
V.35 Connection
High-speed V.35 digital data
interface
Power Switch
Used to turn power on or off
Power Cord
Input of permanent power cord
Fuse Holder
Placement of .5 A/250 V fuse
Chain Out
Connect to other TSU for
control
Control/Chain In
Control input
Network Receive
Monitor test jack for the
Monitor Jack
incoming T1
Network Output
Output test jack for T1 interface
Test Jack
Network Input
Input test jack for T1 interface
Test Jack
Network
Used to connect to the T1 network
Connection
Loopback
T1 loopback connector for
Test Connector
troubleshooting T1 installations
Summary of Contents for TSU 120
Page 1: ...TSU 120 PART NUMBER 1200129L1 USER MANUAL 61200 129L1 1A July 1997...
Page 52: ...Chapter 2 Installation 38 TSU 120 User Manual 61200 129L1 1...
Page 132: ...Appendix C System Configuration Charts 118 TSU 120 User Manual 61200 129L1 1...
Page 138: ...Appendix D TSU 120 System Messages 124 TSU 120 User Manual 61200 129L1 1...