ADTRAN TSU LT User Manual download pdf (Page 17)

Chapter 1. Introduction

61202.060L2-1 TSU LT User Manual 5

Features

Features of the TSU LT are the following:

• A DS1 interface and an Nx56/64 DTE serial interface port.

• Easy configuration capabilities using simplistic menus displayed in a liq-

uid crystal display (LCD) window operated by a front panel keypad.

• Timing is selectable from the network, from the Nx56/64 DTE port, or in-

ternally.

• All ones, all zeros, 511, and 1:8 test patterns.

• Extensive self test and monitoring provides assurance of proper opera-

tion.

• Flexible channel allocation (any starting channel and alternate or contigu-

ous).

Interfaces

The TSU LT is equipped with four interfaces (see Figure 1-3):

• Network DS1 interface per AT&T 62411

• Nx56/64 serial V.35 high speed interface

• Control input (RS-232)/Chain port input

• Chain port output

Figure 1-3

TSU LT Interfaces

TSU

PC or Modem

Network

Nx56/64

Control

Input

Chain

Output

TSU

Nx56/64

Chain

Input

Chain

Output

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ADTRAN TSU LT User Manual Page 17