Digital Equipment Corporation Modem MD400 Manuel utilisateur

Marque: Digital Equipment Corporation

Modèle: Modem MD400

Taper: Manuel utilisateur

Ce manuel convient également à

MD400
MD400G

Mobile Broadband USB Modem

MD400 HSPA/UMTS/EDGE

MD400g HSPA/UMTS/EDGE and GPS

User Guide

ii Contents

Contents

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

Regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

FCC statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Déclaration FCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Industry Canada Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

RF Exposure Caution Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

About this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

How this guide is organised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Additional resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

MD400/MD400g Communications Summary . . . . . . . . . . . . . . . . . . . . . . . 1

Hardware overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SIM Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Attach the Lanyard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

MD400 memory card slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Antennas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Global Positioning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Network and subscription requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Connecting your MD400 to your PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

USB 1.1 and 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Software overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Guidelines for safe and efficient use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Generic SEMC Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Contents iii

Sony Ericsson MD400 Mobile Broadband USB Modem

First edition (October 2008)

This manual is published by Sony Ericsson Mobile Communications AB, without any warranty.

Improvements and changes to this manual necessitated by typographical errors, inaccuracies of

current information, or improvements to programs and/or equipment, may be made by

Sony Ericsson at any time and without notice. Such changes will, however, be incorporated into new

editions of this manual.

This manual is copyrighted work of Sony Ericsson Mobile Communications AB, Sweden.

The programs referred to herein are copyrighted and trademarked works of Sony Ericsson Mobile

Communications AB, Sweden. Reproduction in whole or in part, including utilisation in machines

capable of reproduction or retrieval, without the express written permission of the copyright holders

is prohibited. Reverse engineering is also prohibited.

Windows and Vista are registered trademarks or trademarks of Microsoft Corporation in the United

States and/or other countries.

Adobe and Reader are either registered trademarks or trademarks of Adobe Systems Incorporated in

the United States and/or other countries.

All other product or service names mentioned in this manual are trademarks of their respective

companies.

Publication number: 1212-7288.1

iv Contents

Regulatory information v

Regulatory information

Declaration of conformity

We, Sony Ericsson Mobile Communications AB of

Nya Vattentornet

S-221 88 Lund, Sweden

declare under our sole responsibility that our product

MD400 Sony Ericsson type FAD-3232022-BV

MD400g Sony Ericsson type FAD-3232023-BV

and in combination with our accessories, to which this declaration relates, is in conformity with the

appropriate standards: EN 301 511:V9.0.2, EN 301 908-1:V2.2.1, EN 301 908-2:V2.2.1, EN 300

440-1:V1.7.1 (EC400g only), EN 300 440-2:V1.1.2 (EC400g only), EN 301 489-7:V1.3.1, EN 301

489-24:V1.3.1, EN 301 489-3:V1.4.1 (EC400g only), EN 61000-6-3:2007, EN 61000-6-1:2007, and

EN 60 950-1:2006 following the provisions of Radio Equipment and Telecommunication Terminal

Equipment directive 99/5/EC with requirements covering EMC directive 89/336/EEC, and Low

Voltage directive 73/23/EEC.

Research Triangle Park, North Carolina. October 2008

Place and date of issue

Najmi Jarwala

President - US & Canada

Sony Ericsson Mobile Communications (USA) Inc.

We fulfil the requirements of the R&TTE Directive (99/5/EC).

FR Ce produit est conforme à la directive R&TTE (99/5/EC).

CS Výrobek splňuje požadavky směrnice R&TTE (99/5/EC).

DA Vi opfylder kravene i R&TTE-direktivet (99/5/EC).

DE Die Anforderungen der Richtlinie für Funk- und Fernmeldegeräte (99/5/EG) werden erfüllt.

EL Πληρούμε τις απαιτήσεις της Οδηγίας R&TTE (99/5/ΕΚ).

ES Cumplimos los requisitos de la Directiva R&TTE (99/5/EC).

FI Täytämme radio- ja telepäätelaitedirektiivin (99/5/EY) asettamat vaatimukset.

vi Regulatory information

HR Mi ispunjavamo zahtjeve R&TTE Direktive (99/5/EC).

HU Teljesítjük az R&TTE irányelv (99/5/EC) követelményeit.

IT Il prodotto soddisfa i requisiti della Direttiva R&TTE (99/5/EC).

NL We voldoen aan de vereisten die in de R&TTE-richtlijn (99/5/EG) worden gesteld.

NO Vi oppfyller kravene i R&TTE-direktivet (99/5/EC).

PL Spełniamy wymagania dyrektywy R&TTE (99/5/WE).

PT São cumpridos os requisitos da Directiva R&TTE (99/5/EC).

PB Atendemos aos requisitos da Diretriz R&TTE (99/5/EC).

RO Îndeplinim cerinţele directivei R&TTE (99/5/EC).

RU Изделие удовлетворяет требованиям Директивы R&TTE (99/5/EC).

SK Výrobok spĺňa požiadavky smernice R&TTE (99/5/EC).

SV Vi uppfyller kraven i R&TTE-direktivet (99/5/EC).

TR R&TTE Kararnamesinin (99/5/EC) gerekliliklerini yerine getirmekteyiz.

UK Цей Виріб відповідає вимогам Директиви R&TTE (99/5/EC).

FCC statement

MD400 FCC ID: PY7F3232022

MD400 IC: 4170B-F3232022

MD400g FCC ID: PY7F3232023

MD400g IC: 4170B-F3232023

This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses and can

radiate radio frequency energy and, if not installed and used in accordance with the instructions, may

cause harmful interference to radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause harmful

interference to radio or television reception, which can be determined by turning the equipment off

and on, the user is encouraged to try to correct the interference by one or more of the following

measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

• Consult the dealer or an experienced radio/TV technician for help.

ࡳ࡚ࡩࡒࡆ࡫ࡑࡨࡌ࡫ࡌࡩࡘ࠹ࡼࡤ࠸ࡪࡢࡐࡋ࠹ࡤ࠾࠹ࡼࡤࡑࡨ࠾࠻ࡨࡑ577('LUHFWLYH(&

៥Ӏヺড়R&TTE ᣛҸ(99/5/EC)ⱘ㽕∖Ǆ

ءֆ׹ฤٽ R&TTE Directive (99/5/EC) խऱ๵ࡳΖʳ

Regulatory information vii

WARNING: Changes or modifications made to this equipment not expressly approved by

Sony Ericsson Mobile Communications AB may void the FCC authorization to operate this

equipment.

CAUTION: The Sony Ericsson USB device has been tested for compliance with FCC/IC RF

exposure limits in the laptop computer(s) configurations with a USB port and can be used in laptop

computers with substantially similar physical dimensions, construction, and electrical and RF

characteristics.

Note: If this Sony Ericsson USB device is intended for use in any other portable device, you are

responsible for separate approval to satisfy the SAR requirements of Part 2.1093 of FCC rules.

Déclaration FCC

ID FCC : PY7F3232021

IC : 4170B-F3232021

Cet appareil a été testé et déclaré conforme aux limites d’un appareil numérique de classe B en vertu

de l’article 15 de la réglementation FCC. Ces limites permettent d’être correctement protégé contre

les interférences nuisibles dans une installation résidentielle. Le présent appareil émet, utilise et peut

engendrer des signaux HF (haute fréquence). Si vous ne l’installez pas et ne l’utilisez pas conformément

aux instructions, il peut provoquer des interférences préjudiciables aux communications radio. Il n’existe

toutefois aucun dispositif garantissant la non-apparition de ce type d’interférences dans une installation

déterminée. Si cet appareil provoque des interférences dommageables à la réception radiophonique

ou télévisée (détectables en mettant l’appareil hors tension, puis à nouveau sous tension), nous

conseillons à l’utilisateur d’essayer de les éliminer en appliquant une ou plusieurs mesures ci-après :

• réorienter ou déplacer l’antenne de réception ;

• augmenter l’écart séparant l’appareil du récepteur ;

• brancher l’équipement dans une prise située sur un circuit différent de celui utilisé pour

la connexion du récepteur ;

• consulter le revendeur ou un technicien radio/TV expérimenté.

AVERTISSEMENT : Les changements ou modifications opérés sur le présent appareil sans

l’approbation expresse de Sony Ericsson Mobile Communications AB peuvent frapper de nullité

l’autorisation FCC relative à l’utilisation de l’appareil précité.

ATTENTION : Le dispositif USB Sony Ericsson a été testé pour satisfaire aux exigences des limites

d'exposition aux radiofréquences de la FCC/IC dans la (les) configuration(s) d'ordinateur(s) portables(s)

munis d'un port USB et peut être utilisé sur des ordinateurs portables dont les dimensions physiques,

la fabrication et les caractéristiques électriques et de radiofréquences sont significativement

semblables.

Remarque : Si vous prévoyez d'utiliser ce dispositif USB Sony Ericsson sur un autre ordinateur

portable, il vous incombe d'obtenir une approbation distincte pour satisfaire aux exigences SAR

de l'article 2.1093 de la réglementation FCC.

viii Regulatory information

Industry Canada Statement

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

RF Exposure Caution Notice

This Mobile Broadband USB Modem, model MD400/MD400g, is approved for use in normal size

laptop computers only (typically with 12” or larger display screens). To comply with FCC RF

exposure requirements, this modem should not be used in configurations that cannot maintain at least

5 mm (approximately 0.2 inch) on the bottom or 12 mm (approximately 0.5 inch) on the top and sides

from users and bystanders. For example, in certain laptop and tablet computers and configurations

where the USB connectors on the host computer are unable to provide or ensure the necessary

separation between the modem and its users or bystanders to satisfy RF exposure compliance

requirements. See Figure 1.

In addition, to maintain RF exposure compliance, the antenna should be rotated completely away

(approximately 135 degrees) from the stowed position when operating the USB modem. See

Figure 2.

Fig 1

Fig 2

About this guide ix

About this guide

Congratulations and thank you for purchasing a Sony Ericsson MD400 or MD400g Mobile Broadband

USB Modem.

This guide includes an overview of the supported features, detailed technical specifications, system

requirements, and safety guidelines for both the MD400 and MD400g.

The MD400 and MD400g provide the same features, with one exception, the MD400g incorporates

a Global Positional Satellite (GPS) receiver. This manual refers to both modems as MD400. When

the information is specific to the MD400g, MD400g will be used.

Note:

Be sure to read all safety guidelines in this document before using your MD400.

How this guide is organised

Chapter 1: Overview on page 1, contains an overview of your MD400 and the features that it

supports. It also provides a list of the requirements and tools needed to use your new MD400.

Chapter 2: Additional information on page 15, provides safety guidelines, warranty information, and

regulations that are relevant to your MD400.

Chapter 3: Technical specifications on page 20, provides detailed technical specifications for your

MD400.

Additional resources

Sony Ericsson support Website

Additional resources can be found on the Internet at the Sony Ericsson support Website You can use

the Sony Ericsson Website to find the most up-to-date product information and support wherever

you are. It gives you access to online customer services, user manuals, the latest software downloads,

and other useful information. For more information, go to:

www.sonyericsson.com/support

Publications

Sony Ericsson provides the following documents to help you use your MD400:

• A printed Quick Start Guide aimed at getting you operational as quickly as possible.

• A PDF MD400 User Guide (this document) that contains a detailed description of your MD400

and the features that it supports. This document is copied to your hard drive when Wireless

Manager is installed and can be accessed by selecting Start All Programs Sony

Ericsson Wireless Manager 5 MD400 User Guide

• Online Help built into Wireless Manager which describes in detail how to use each feature and

how to install and uninstall the software. Select Help or press F1 to access online help.

x About this guide

• A PDF Wireless Manager User Guide which contains the same detailed information as the

online help in a conventional printable format. This document is available from the support

website only.

Note:

PDF documents are in Adobe® Portable Document Format. If your PC cannot open these

documents, download and install the Adobe® Reader® from www.adobe.com.

Note:

Your mobile operator may provide alternative application software and documentation.

Overview 1

Overview

Checklist

The following items should be in the box when you unpack it:

• Sony Ericsson MD400 Mobile Broadband USB Modem

• USB extension cable

• Quick Start Guide (QSG)

• Lanyard and cover (if provided)

MD400/MD400g Communications Summary

Your MD400 keeps you in touch, enabling you to use the best available mobile service wherever you

are. It supports tri-band Universal Mobile Telecommunications System (UMTS) and quad-band

Global System for Mobile Communications (GSM):

Your MD400 supports SMS text messaging and the following communications services:

Where UMTS service with HSPA is available, your MD400 can connect at speeds up to 7.2Mb/s.

Your MD400 provides automatic fallback to UMTS where HSPA is not available and to EDGE or

GPRS service where UMTS is not available (network support required). This section describes the

services that the MD400 supports:

• High Speed Packet Access (HSPA)

HSPA is an enhancement to UMTS networks. HSDPA (High Speed Downlink Packet

Access) enables the downlink speed to be dramatically increased; up to 7.2Mbps using the

MD400. File downloads will be faster, whilst applications such as video streaming may

operate at higher quality and greater reliability. The maximum speed available depends on

the configuration of the mobile network, local conditions such as distance to the base station

and usage levels. HSUPA (High Speed Uplink Packet Access) enables the MD400 to upload

data at speeds up to 2.0Mbps.

GSM

GPRS

EDGE

850MHz

900MHz

1800MHz

1900MHZ

UMTS

HSPA

850MHz

1900MHz

2100MHz

Service Maximum Download Speed Maximum Upload Speed

HSPA 7.2Mb/s 2.0Mb/s

UMTS 384kb/s 384kb/s

EDGE 247.4kb/s 123.7kb/s

GPRS 53.6kb/s (CS-2)

85.6kb/s (CS-4)

26.8kb/s (CS-2)

42.8kb/s (CS-4)

2Overview

• Universal Mobile Telecommunications System (UMTS)

UMTS is a 3G technology standard for wide-area wireless data communication that is based

on the GSM standard. The UMTS standard uses advanced network operator mobile Internet

services to achieve data transfer rates up to 384kbps, which are ideal for media streaming,

video MMS, instant shopping, and banking.

• Enhanced Data Rates for Global Evolution (EDGE)

EDGE enhances GPRS by increasing data throughput over GPRS by as much as three times,

depending upon the network radio signal strength and quality. GPRS networks that are

enhanced with EDGE are often referred to as Enhanced GPRS (E-GPRS) networks.

EDGE provides the “always on” capability of GPRS but at faster speeds. EDGE technology

is transparent — simply make a GPRS connection as usual and benefit from the increase in

speed where EDGE is available in a network. When EDGE is available you can expect

increased speeds of up to 200 kb/s, dependent on network coverage.

• General Packet Radio Service (GPRS)

GPRS is a type of network connection that provides “always on” mobility. The connection

set up is fast. After you are connected, applications can send and receive data whenever

required. In today’s GPRS networks, the MD400 receives data at speeds up to 53.6 kb/s and

transmits at speeds up to 26.8 kb/s.

• Short Message Service (SMS)

You can send and receive SMS text messages using the Text Messages window in Wireless

Manager or other application software.

Hardware overview

Your Sony Ericsson MD400 is a USB Mobile Broadband Modem. The MD400 has a retractable

USB connector that is covered by the antenna when the modem is not in use. The MD400 has an

expandable combo memory slot which accepts either M2 Memory Stick Micro™ or MicroSD™

memory cards. The MD400g contains a GPS receiver.

Overview 3

Before using your MD400, you must extend the USB connector. To do this, move the antenna to the

up position, as shown in the following illustration. The USB connector will automatically extend.

The MD400 uses the 5 volt power supply provided by the USB port. The amount of power that

your MD400 draws from the laptop battery depends on several factors, including status, frequency

band, distance to the base station that is used, if a memory card is installed and if GPS is enabled

(MD400g only).

The MD400 can be turned off under software control from the Wireless Manager application or the

signal strength icon in the status tray. You must remove the modem from the laptop when flying to

prevent any accidental transmission.

The MD400 has three integrated antennas and a 2-way Diversity receiver for improved downlink

performance

USB Interface

The MD400 is a USB2.0 device. USB products that draw more than 100mA from the port are called

high power devices; the MD400 is a high power device. At maximum transmission power (GSM850/

900) it requires peak current of 600mA. Most high power capable USB ports will deliver this current.

The MD400 operates at USB High Speed, 480Mbps, which is more than sufficient to handle the

7.6Mbps download speed supported by the product.

4Overview

Status LEDs

The MD400 and MD400g contain multi-colored LEDs that indicate the status of the device. The

LEDs are located next to the antenna, as shown below.

Note:

On the MD400 both LEDs are Mobile Service LEDs.

SIM Card

When you subscribe to a mobile network, you are issued a Subscriber Identity Module (SIM) card.

Your SIM card contains your personal subscriber data. To connect to a mobile network you must

first insert your SIM card, that includes the appropriate network subscription, into your MD400.

LED Color Flash rate Description

1 - GPS

(MD400g only)

Yellow Fast Searching, position not fixed

Yellow Slow Position fixed

Off GPS off

2 - Mobile Service Red Fast Searching for a mobile network

Green Medium Registered to GPRS or EDGE service, not

connected

Green Slow Connected - GPRS or EDGE service

Blue Medium Registered to UMTS or HSPA service, not

connected

Blue Slow Connected - UMTS or HSPA service

Overview 5

To insert the SIM card

1. Remove the bottom cover from the MD400.

2. Insert the SIM card into the MD400. Make sure the gold contacts on the SIM card are facing

towards the MD400 and the angled corner (A) of the SIM card is placed toward the MD400 as

shown.

3. Replace bottom cover.

To remove the SIM card

1. Remove the bottom cover from the MD400.

2. Remove the SIM from the MD400.

6Overview

3. Replace the bottom cover.

Attach the Lanyard

The MD400 comes with a lanyard and cover. To attach the lanyard and cover, complete the

following steps:

1. Tread the thin end of the lanyard through the small hole in the cover, as shown in the following

illustration.

Once the lanyard is threaded through the cover and attached to the MD400, the cover will easily slide

over the MD400 for protection or easily slide off for device access.

2. Remove the bottom cover.

Overview 7

3. Loop the thin end of the lanyard around the plastic hook, as shown.

4. Replace cover as shown.

MD400 memory card slot

The MD400 may be used as a memory card adapter. Optional memory cards may be inserted into

the memory card slot, to access your own files and media.

Note:

There is no available built-in memory for use as a flash drive in the MD400. Only the optional

removable memory card inserted into the combo memory slot is available for use as flash drive

memory.

Removable memory card format

The MD400 has an expandable combo memory card slot which accepts either M2 Memory Stick

Micro™ or MicroSD™ memory cards..

To install memory cards

1. Open the small door over the memory slot.

8Overview

2. Insert the memory card, with the contacts toward the slot, into the slot until it clicks. Install M2

Memory Stick Micro™ with the contacts in the up position. as shown below. Install MicroSD

Memory with the contacts in the down position

Note:

You may require a small tool to recess the memory card into the MD400 Broadband Modem.

3. Replace the door over the memory slot.

To remove memory card

1. Open the small door over the memory slot.

2. Push the memory card into the slot until it clicks and release.

Note:

You may require a small tool to push the memory card.

3. Grasp the memory card and remove it from the MD400.

4. Replace the door over the memory slot.

To access the memory card

The memory card can be assessed through Windows Explorer. It appears as a removable storage

device.

Overview 9

Antennas

The MD400 has two built-in antennas and the MD400g has an additional GPS antenna.

1. Main - GSM/UMTS/HSPA (transmit and receive)

2. Diversity - UMTS and HSPA (receive only)

3. GPS - Global Positional System (MD400g only) (receive only)

Global Positioning System

The MD400g Mobile Broadband Modem contains a Global Positioning System (GPS) receiver. GPS

is a satellite-based navigation system made up of a network of 32 satellites orbiting the Earth. GPS

works anywhere in the world, 24 hours a day.

To access the GPS features of the MD400g, select View GPS in Wireless Manager. If you are

using other software, for example, supplied by your mobile operator, please consult the

documentation for that application.

GPS data is provided over the Sony Ericsson GPS Port. This is a Windows virtual COM Port. When

you install the MD400g, Windows will assign a number, for example COM23. To link a third-party

GPS-enabled application to your MD400g's GPS receiver, you may need to access the application

settings and select the COM port number that Windows has allocated. This is displayed in the GPS

main screen. To view the COM port information select View GPS. This information is also

available in Device Manager.

The data that the GPS device provides, is in Nautical Marine Electronics Association (NMEA)

format. This format is commonly understood by GPS-enabled applications.

For more information on GPS, refer to your Wireless Manager User Guide.

Network and subscription requirements

The network subscription you use in conjunction with your MD400 depends on the functions and

features that are available from your network operator. Contact your network operator or service

10 Overview

provider to make sure the options that you require are available (UMTS/HSPDA, GPRS/EDGE and

SMS).

Note:

Network operators often provide a number of connectivity options such as WAP and

Internet. These are accessed via different APNs (Access Point Names). Verify the services

that you require, such as Internet, e-mail or corporate VPN (Virtual Private Network) service

are available through your mobile operator and enabled on your subscription.

Connecting your MD400 to your PC

This section tells you about the different ways you can connect your MD400 to your PC.

• Direct connection

• Extension cable (provided)

• Via a powered hub

Note:

Your MD400 must be plugged into a USB port that is capable of supporting high power USB

devices. The MD400 is a USB 2.0 product, however it should work in the majority of USB 1.1

ports with possible reduced throughput. Refer to USB 1.1 and 2.0 on page 12 for more

information.

Direct connection

The MD400 can be plugged directly into a USB port as shown below. This configuration offers the

best portability.

Note:

To avoid damage to the MD400 or your laptop’s USB port, remove the MD400 before placing

your laptop into a carrying case.

Caution!

Some laptops have USB port positions that may conflict with operation. Use the included

extension cable if:

• The USB ports are close together and the modem covers an adjacent port that is needed.

• The modem can not be plugged in directly, e.g., the USB port is recessed and the USB

connector on the modem can not reach.

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Digital Equipment Corporation Modem MD400 Manuel utilisateur

Marque: Digital Equipment Corporation

Modèle: Modem MD400

Taper: Manuel utilisateur

Ce manuel convient également à

MD400
MD400G

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English: Digital Equipment Corporation Modem MD400 User manual

Digital Equipment Corporation Modem MD400 Manuel utilisateur

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Digital Equipment Corporation Modem MD400 Manuel utilisateur

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