ATEN Technology US-401 User Manual

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.

The US-401 package contains:

* USB SWITCH * USER'S MANUAL

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

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.

Specifications

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

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.