ADTRAN TSU 120, Руководство пользователя

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Table of Contents
61200.129L1-1 TSU 120 User Manual
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Table of Contents
Chapter 1. Introduction
TSU 120 Overview .............................................................................................. 1
Functional Description ............................................................................... 1
TSU ................................................................................................... 1
TSU 100 ............................................................................................ 2
TSU 120 ............................................................................................ 2
TSU 600 ............................................................................................ 2
Identification of Rear Panel Layout ................................................................. 3
Features of the TSU 120 .............................................................................. 5
Interfaces ....................................................................................................... 6
TSU 120 Interfaces .............................................................................................. 7
Network Interface ........................................................................................ 7
DSX-1 (PBX) Interface ................................................................................. 7
Nx56/64 Serial Interface ............................................................................. 7
Control Port Input ....................................................................................... 8
Chain Port Output ....................................................................................... 8
Option Ports ........................................................................................................ 9
Secondary Interfaces (SI) ............................................................................ 9
Other Data Interfaces .................................................................................. 9
Dial Backup .................................................................................................. 9
Four Methods of Control ................................................................................. 10
Front Panel ................................................................................................. 10
ADTRAN PC Program ............................................................................. 10
SNMP .......................................................................................................... 10
Terminal Mode .......................................................................................... 10
TSU 120 Clock Sources ..................................................................................... 11
Network Timed .......................................................................................... 11
DSX-1 Timed .............................................................................................. 12
DTE Timed ................................................................................................. 13
Internal Timing .......................................................................................... 14
Normal (CSU) Timing ............................................................................... 15
TSU 120 Testing ................................................................................................. 16
Self Tests ..................................................................................................... 16
Loopback Tests .......................................................................................... 16
Classes of Loopbacks ......................................................................... 17
Network Interface Loopbacks ................................................... 17
DTE Interface Loopbacks ........................................................... 17
DSX-1 Interface Loopbacks ........................................................ 19