Multitech MultiDSU MTT1DSU Manuel utilisateur

Model MTT1DSU

User Guide

Class A

Manual Declaration

NOTE: This equipment has been tested and found to comply with the

limits for a Class A digital , pursuant to Part 15 of the FCC Rules. These

limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environ-

ment. This equipment generates, uses, and can radiate radio frequency

energy, and if not installed and used in accordance with the User

Guide, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause

harmful interference, in which case the user will be required to correct

the interference at his own expense.

WARNING: Changes or modifications to this unit not expressly approved

by the party responsible for compliance could void the user's authority

to operate this equipment.

MultiDSU User Guide

82083200 Revision A

ModelMTT1DSU

This publication may not be reproduced, in whole or in part, without prior

expressed written permission from Multi-Tech Systems, Inc. All rights

Multi-Tech Systems, Inc. makes no representations or warranties with

respect to the contents hereof and specifically disclaims any implied

warranties of merchantability or fitness for any particular purpose.

Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this

publication and to make changes from time to time in the content hereof

without obligation of Multi-Tech Systems, Inc. to notify any person or

organization of such revisions or changes.

RecordofRevisions

Revision Description

AManual released. All pages at rev A.

(8/14/98) Patents

This Product is covered by one or more of the following U.S. Patent

Numbers:

5.301.274; 5.309.562

;

5.355.365; 5.355.653; 5.452.289;

5.453.986

. Other Patents Pending.

TRADEMARK

Trademark of Multi-Tech Systems, Inc. is the Multi-Tech logo.

Windows is a registered trademark of Microsoft.

Multi-Tech Systems, Inc.

2205 Woodale Drive

Mounds View, Minnesota 55112

(612) 785-3500 or (800) 328-9717

Fax 612-785-9874

Tech Support (800) 972-2439

BBS (612) 785-3702 or (800) 392-2432

Internet Address: http://www.multitech.com

Fax-Back (612) 717-5888

Contents

Chapter 1 - Introduction and Description

Introduction ................................................................................. 8

AboutThisUserGuide ................................................................ 9

FrontPanel................................................................................ 10

BackPanel ............................................................................... 11

LINEConnector .................................................................. 11

COMMANDConnector........................................................ 11

DataConnector................................................................... 11

POWERConnector............................................................. 11

FCCRegulations forTelephoneLine Interconnection ................. 12

Specifications ........................................................................... 14

T1Line ............................................................................... 14

DataPort ............................................................................ 14

Electrical/Physical/Environmental ...................................... 14

Chapter 2 - Installation

Introduction ............................................................................... 16

SafetyWarnings ........................................................................ 16

Unpacking................................................................................. 16

MultiDSUConfiguration ............................................................. 17

CablingYourMultiDSU .............................................................. 19

Configuration............................................................................. 21

Chapter 3 - Menu System

Introduction ............................................................................... 30

ConfigurationsMenu ........................................................... 30

T1Line ConfigurationMenu....................................................... 30

FramingFormat .................................................................. 31

LineCoding ........................................................................ 31

LineTypeandLength .......................................................... 32

DS0Speed/DS0AllocationMenu.............................................. 32

DS0Speed ......................................................................... 32

DS0Allocation.................................................................... 32

ClockingMenu .......................................................................... 33

V.35 Port Menu ......................................................................... 33

SetConfigurations .............................................................. 33

SetandSaveConfigurations .............................................. 33

Reset to Factory Defaults ................................................... 34

CurrentStatusScreen ........................................................ 34

Statistics .................................................................................. 35

Out Of Sync Secs .............................................................. 35

ErroredSecs ...................................................................... 35

Bursty Errored Secs ........................................................... 36

SeverelyErroredSecs........................................................ 36

FailedSecs ........................................................................ 36

ControlledSlips .................................................................. 36

FramingBitErrors............................................................... 36

Bipolar Violations ................................................................ 36

Diagnostics ............................................................................... 37

SystemInformation................................................................... 38

Chapter 4 - Remote Configuration

Introduction ............................................................................... 40

Modem-BasedRemoteConfigurationProcedure................. 40

Chapter 5 - Diagnostics

Introduction ............................................................................... 42

SetupforDiagnosticLoopbackTests ........................................ 42

DiagnosticsMethodology .......................................................... 42

DiagnosticsMenu ..................................................................... 43

Local Loop Back................................................................. 43

RemoteLoopBack ............................................................. 43

Put Remote Into Loop Back................................................ 44

Processor Loopback.......................................................... 44

Chapter 6 - Warranty, Service and Technical Support

Introduction ............................................................................... 46

LimitedWarranty ................................................................. 46

On-lineWarrantyRegistration.............................................. 47

Service ............................................................................... 47

AbouttheInternet............................................................... 48

AbouttheMulti-Tech Fax-Back Service .............................. 48

Chapter 1 - Introduction

and Description

Introduction

The Multi-Tech Systems MultiDSU (Model number MTT1DSU) is a low

cost, full-featured T1-FT1 Data Service Unit (DSU). The MultiDSU

provides an interface between point-to-point T1 or Fractional T1 service

and the end user's Data Terminal Equipment (DTE). This unit also

provides Facility Data Link (FDL) support.

Housed in a compact, durable housing, the MultiDSU supports D4 or

ESF framing and AMI or B8ZS line coding on the T1 Line and supports

synchronous data rates from 56 kbps to 1.536 Mbps to the DTE. A

single V.35 (Winchester 34-pin) physical interface is the Data port to the

DTE device.

This unit enables you to run complete diagnostics (loopback tests on

your T1 line or your local or remote DSU) from your PC or terminal.

Figure 1-1. MultiDSU

About This User Guide

This user guide describes the MultiDSU and explains how to install and

configure the unit. The information contained in each chapter is as

follows:

Chapter 1 - Introduction and Description

Chapter 1 describes the MultiDSU and provides a review of this user

guide. This chapter describes the front panel indicators and back panel

connectors and switch. Applicable FCC regulations and a list of relevant

specifications are provided at the end of the chapter.

Chapter 2 - Installation

Chapter 2 lists the safety warnings that are applicable to the MultiDSU

then steps you through the process of unpacking your MultiDSU,

connecting signal cables and power, and configuring your MultiDSU for

operation.

Chapter 3 - Menu System

Chapter 3 describes the various options available on all the menus and

submenus used to configure and operate the MultiDSU.

Chapter 4 - Remote configuration

This chapter provides instructions for modem-based remote configura-

tion of the MultiDSU.

Chapter 5 - Diagnostics

Chapter 5 describes how to set up for, and perform, several types of

diagnostic loopback tests for the MultiDSU.

Chapter 6 - Warranty, Service and Technical Support

Chapter 6 provides instructions on getting service for your MultiDSU at

the factory, and includes a statement of the limited warranty and space

for recording information about your MultiDSU prior to calling Multi-

Tech's Technical Support. The final sections explain how to obtain

technical support through our Web site and ftp site on the Internet or our

fax-back system.

Front Panel

The front panel contains three sets of LEDs that provide the status of

the MultiDSU and its data and T1 connections. The Data LEDs display

the status and activity of the V.35 Data port. The T1 Line LEDs show

whether the T1 Line is online or in a failure mode. Two monitor jacks

enable you to monitor the T1 line with external test equipment.

Figure 1-1. Front Panel

PWR (Power) Lights when the power switch is in the "1"

(On) position and the MultiDSU is powered by the

external power supply.

BTG (Booting) Lights while the MultiDSU is booting.

TST (Test) Lights during diagnostic tests and during any

loopback tests. Data

XMT (Transmit) Lights when packets are being transmitted

to the T1 line from the DTE device.

RCV (Receive) Lights when packets are being received

from the T1 line by the DTE device.

RTS (Ready to Send) Lights whenever the DTE device is

receiving RTS.

T1 Line

ONL (Online) Lights whenever a carrier signal is detected

and no error conditions are present.

SLS (Sync Loss) Lights when there is a Loss of Sync in the

input signal .

RED (Warning) Lights when there is a red alarm on the T1

line.

YEL (Warning) Lights when there is a yellow alarm on the

T1 line. Monitor jacks

XMT (Transmit) monitors transmit data on the T1 line.

RCV (Receive) monitors receive data on the T1 line.

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