ATEN US-401 - Manual

Specifications

Limited Warranty

IN NO EVENT SHALL THE DIRECT VENDOR'S

LIABILITY EXCEED THE PRICE PAID FOR THE

PRODUCT FROM DIRECT, INDIRECT, SPECIAL,

INCIDENTAL, OR CONSEQUENTIAL DAMAGES

RESULTING FROM THE USE OF THE PRODUCT,

DISK, OR ITS DOCUMENTATION.

The direct vendor makes no warranty or

representation, expressed, implied, or statutory with

respect to the contents or use of this documentation,

and especially disclaims its quality, performance,

merchantability, or fitness for any

particular purpose.

The direct vendor also reserves the right to revise or

update the device or documentation without obligation

to notify any individual or entity of such revisions, or

update. For further inquiries, please contact your direct

vendor. Radio & TV Interference

Radio & TV Interference

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.

Overview

The US-401 4 Port USB Manual Switch allows up to

four PCs and/or Macs to share the use of a single USB

peripheral device (printer, scanner, modem, etc.), on a

one-at-a-time basis. The active computer is selected by

means of an electronic pushbutton switch that cycles

among all of the ones that are connected.

System Requirements

• iMac or PC with Windows 95 (OSR 2.0 and above), or

Windows 98

• USB Host Controller installed on the system.

Features

• Windows and USB Plug & Play Compatible

• 100% iMac Compatible

• Up to Four Computers Can Share a USB Device

• Both PCs and Macs Can Connect Up At the Same

Time

• Hot Pluggable (USB Devices Can Be Plugged and

Removed Without Having to Reset the System)

• Supports both Open Host Controller Interface (OHCI)

and Universal Host Controller Interface (UHCI)

• Bus Powered - No External Power Supply Required

• Electronic Circuit (Non-Mechanical) Switch For

Reliability

Directions For Use

The US-401 provides four Type B USB ports for connecting

the unit to the computers, and one Type A USB port for

connecting the unit to the peripheral device (printer,

scanner, modem, etc.). To connect up the US-401 and

select an active computer, do the following:

1.

Plug the B Connector end of a USB cable into any

available B (Upstream) port on the US-401; plug the

A Connector end of the USB cable into the USB port

on the computer.

2.

Plug the B Connector end of a USB cable into the B

(Upstream) port on the peripheral device; plug the A

Connector end of a USB cable into the A

(Downstream) port on the US-401.

Note:

When you first power up, the unit

automatically links to Port1. If you want a

computer attached to one of the other ports to

be active, you must manually switch to it.

3.

Press the electronic pushbutton switch, located on the

top of the unit, to cycle among the connected

computers to select the one you want to have access to

the peripheral. A LED lights to indicate which port is

selected.

Important!

The first time in a session that any of the

computers connects to the USB device, the USB device

driver for that computer automatically loads. You must

NOT

switch away from that computer until the driver

completes loading, or else the system will hang.

Troubleshooting

Problem

Cause

Action

Unit Operates
Erratically

Static electricity
may cause the
unit to operate
erratically.

Unplugging the cable
from the active
computer's USB port,
and then reinsert it.

Function Specification

Connectors Upstream 4 Type B Receptacles
Downstream 1 Type A Receptacle
LEDs

4 Selected

Port Selection 1 Pushbutton Switch
Power Mode Bus Powered
Housing Plastic
Weight 120 g
Dimensions (L x W x H) 92 x 78 x 26 mm

U S E R ' S M A N U A L

The US-401 package contains:

* USB SWITCH

* USER'S MANUAL

Read this guide thoroughly and follow the installation and operation
procedures carefully to prevent any damage to the hub and/or any of
the devices it connects to.

©Copyright 1999 ATEN®

I

nternational Co., Ltd.

Manual Part NO. PAPE -1146-100

All brand names and trademarks are the registered property of their respective owners.