Table of Contents

List of Figures

1-xxi

List of Tables

1-xxiii

Chapter 1. Introduction

1-1

TDU 120e Overview

1-1

Standard Features in the TDU 120e

1-3

TDU 120e Option Modules

1-4

DSX-1

1-4

Full Drop and Insert

1-4

Nx56/64 serial interface

1-4

Voice interface

1-4

OCU DP

1-4

DSU DP

1-4

Dial backup

1-4

U-BR1TE

1-4

Option Module Architecture

1-5

TDU 120e Configuration Applications

1-6

Router, PBX, Video Conferencing Application

1-6

Chapter 2. Installation

2-1

Unpack, Inspect, Power Up

2-1

Receipt Inspection

2-1

ADTRAN Shipments

2-1

Customer Provides

2-2

Power Connection

2-2

AC Powered Units

2-2

DC Powered Units

2-2

Grounding Instructions

2-3

Identification of Rear Panel Layout

2-5

TDU 120e Interfaces

2-6

61202156L2-1

TDU 120e User Manual

xiii

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ADTRAN TDU 120e user manual Table of Contents