Startech SV431H User Manual

4PortKeyboard/Mouse/Monitor
SharingSwitchUSB-PS/2

User'sManual

SV431H

Table of Contents

Introduction

Overview 1
Features 1

Installation

PC BIOS Notice 2
Adhesive Rubber Feet 3
Console Connection 3
Computer Connection 4

Operation

Front Panel Push Buttons 5
Hot Key Commands 6

Cascade Configuration

Connection 7
Change Selection 7

Appendices

Specifications 8

Troubleshooting 9

1

Introduction

Overview

The StarTech.com SV431H, fully compatible with USB specification,
is a hybrid USB and PS/1 keyboard/mouse/monitor sharing switch.
The SV431H USB switch lets a user manage four computers by USB
or PS/2 interface or a combination of both, from 1 monitor, PS/2
keyboard and mouse saving you space, time, equipment and money.

Installation is as easy as connecting USB A-B cables or PS/2 cables
in between computers and the SV431H switch. Selecting a computer
is as easy as front panel push button pressing or by entering hotkey
commands. The SV431H switch provides the easiest way to manage
multiple USB or PS/2 computers with one PS/2 keyboard, mouse and
monitor. No more tangled cables and messy working environments.

Features

• Manage 4 PCs with USB or PS/2 interfaces from one PS/2
keyboard, mouse or monitor.

• Front panel push buttons and hotkey commands for easy computer
selection.

• No drivers needed for keyboard and mouse operation.

• Support keyboard and mouse operation.

• High VGA resolution: 1920 x 1440.

• Buzzer sound for computer switching confirmation.

• Activate Auto Scan by front button pressing.

• Selectable Scan Time interval.

• Support the latest DDC2B VGA monitor.

• Saves time, space, equipment and power.

• No software required.

2

Installation

PC BIOS Notice

The following BIOS setup changes are necessary for PC users using
USB and not necessary for Mac users:

1. In STANDARD CMOS, set HALT ON ERROR to ALL BUT
KEYBOARD.

2. In PNP AN PCI SETUP, set PNP OS INSTALLED to YES and set
USB IRQ to ENABLE.

3. For newer computers: in INTEGRATED PERIPHERALS, set
USB CONTROLLER and KEYBOARD SUPPORT to ENABLE.

Also make sure that USB is properly selected in Device Manager
under Control Panel, as shown below.

Note: The SV431H is applicable for USB keyboard and mouse.
Switching from one computer to the next is equivalent to unplugging
the USB device from one computer and plugging it to another. Some
USB drivers check attached USB peripherals all the time and do not
accept plug-n-play function.