ATEN US221A User manual

US221A/ US421A

USER MANUAL

USB 2.0 Peripheral Switch

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FCC Information

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 instruction manual, may

cause 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 which the receiver is connected;

Consult the dealer or an experienced radio/television technician

for help.

RoHS

This product is RoHS compliant.

SJ/T 11364-2006

The following contains information that relates to China.

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US221A/ US421A

User Manual

Online Registration

You can register your product at our online support center:

Online Support

International

North America

International http://support.aten.com

North America http://www.aten-usa.com/product_registration

Email Support [email protected]

Online

Support Technical Support http://support.aten.com

Troubleshooting

Documentation

Software Updates

http://www.aten.com

Telephone Support 886-2-8692-6959

Email Support ATEN TECH [email protected]

ATEN NJ [email protected]

Online

Support Technical

Support ATEN TECH http://www.aten-usa.com/support

ATEN NJ http://support.aten.com

Troubleshooting

Documentation

SW Updates

ATEN TECH http://www.aten-usa.com

ATEN NJ http://www.aten.com

Telephone Support ATEN TECH 1-888-999-ATEN

ATEN NJ 1-732-356-1703

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Package Contents

The US221A/ US421AUSB 2.0 Peripheral Switch package

contains the following items:

1 2-port (US221A) or 4-port (US421A) USB 2.0 Peripheral

Switch

1 1.8 m USB Type A to USB Type B Cable

1 Installation Disk

1 User Manual*

1 Quick Start Guide

Check to make sure that all the components are present and that

nothing got damaged in shipping. If you encounter a problem,

contact your dealer.

Read this manual thoroughly and follow the installation and

operation procedures carefully to preventanydamage tothe unit,

and/or any of the devices connected to it.

*Features may have been added to the US221A/ US421Asince

this manual was printed. Please visit our website to download

the most up-to-date version of the manual.

Manual Part No. PAPE-1245-110G

Manual Date: 2009-05-20

ATEN and the ATEN logo are trademarks of ATEN International Co., Ltd. All rights

reserved. All other trademarks are the property of their respective owners.

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Overview

The US221A/ US421Ais a 2/4-port USB 2.0 Peripheral Switch

that allows up to 2/4 computers to share the use of a single USB

peripheraldevice(such asa printer,scanner, mass storagedrive,

etc.*) on a one-at-a-time basis.

The peripheral focus can be given to a computer manually by

using pushbuttons on the switch or by using the software-based

configuration utility. In addition, the US221A/ US421Ahas a new

Auto Switch function that stores commands sent to the USB

peripheral device to be processed on a first-come, first-served

basis, meaning that a print server is not required.

Compatible with both Windows and Mac, and with multifunction

printer support, the US221A/ US421Ais the ideal way to share

the latest USB 2.0 peripherals in a multimedia SOHO

environment.

Note: The US221A/ US421Adoes not support a USB hub

peripheral device.

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Features

Enables two (US221A) or four (US421A) computers to share a

single USB peripheral device

Simple port selection via pushbuttons or easy-to-use

configuration utility

Auto Switch function – no need for a separate print server

USB 2.0 compliant

Supports transfer rates up to 480 Mbps

Multiplatform support – Windows and Mac

LED indicators display port focus

Overcurrent protection

Bus-powered

Hot pluggable

Buzzer indicates switching between computers

Supports multifunction printers

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System Requirements

Computers

Thefollowingequipmentmustbeinstalled oneach computer that

is to be connected to the system:

USB host controller

Cables

USB to USB cables to connect the computers to the

peripheral device.

Note: Only one USB Type A to USB Type B cable is provided

in the US221A/ US421Apackage. You will need to

purchase an additional USB Type A to USB Type B

cables for each computer you wish to connect to the

US221A/ US421A.

Operating Systems

Supported operating systems are shown in the table, below:

OS Version

Windows 2000, XP, 2003, 2008, Vista

Mac OS X 10.4.5, 10.5

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Components

Top View

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Rear View

No. Component Description

1 Lock LED Lights orange to show that the US221A/

US421Ais locked.

2 Port Selection

Pushbutton(s) Pressing a Port Selection Pushbutton brings

control to the computer attached to its

corresponding port. See Manual Operation –

Pushbutton, page 12 for further details.

3 Port Selected

LEDs Lights green to show that the computer

attached to its corresponding port has control.

4 Beeper On/Off

Switch (on side) Use this recessed switch to turn the US221A/

US421A’s beeper on or off.

5 USB Type B

Computer Port Your computers plug into these ports. See

Installation, page 10 for further details.

6 USB Type A

Peripheral Port Your USB 2.0 peripheral device plugs into this

port.

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Installation

The US221A/ US421AUSB 2.0 Peripheral Switch provides 2/4

USB Type B ports for computers to connect to, and one USB

Type A port for the peripheral device (multifunction printer,

scanner, mass storage device, etc.) that the computers will

share.

To install the US221A/ US421A, do the following:

1. Use your USB device's USB cable to connect it to the

US221A/ US421A's USB Type A port.

2. Plug the USB Type B connector of the USB Type A to USB

Type B cable provided with the US221A/ US421Apackage

into any available port on the US221A/ US421A.

3. Plug the Type A connector into the computer’s USB host port.

Repeat steps 2 and 3 for any other computers you are installing.

Note: Only one USB Type A to USB Type B cable is provided in

the US221A/ US421Apackage. You will need to purchase

an additional USB Type A to USB Type B cables for each

computer you wish to connect to the US221A/ US421A.

1. Make sure that the power to any device that you

connect to the installation has been turned off and

that all devices are properly grounded.

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