StarTech.com StarView SV231USB User manual

USB Keyboard/Video/Mouse
Sharing Switch
User's Manual
SV431USB
SV231USB

Table of Contents
Introduction
Overview 1
Features 2
System Requirements
Console Side 3
Computer Side 3
Installation
PC BIOS Notice 4
Console Connection 5
Computer Connection 6
Operation
Front Panel Push Buttons 7
Rack Mount Kit 9
Appendices
Specifications 10
Troubleshooting 11
Other StarView Switches 13
Please read this manual thoroughly and
follow the Installation procedures to
prevent damage to the StarView or any
connecting devices.

1
Introduction
Overview
The StarView SV231USB and SV431USB, fully
compatible with USB specifications, are a combination of
USB KVM (Keyboard/Video/Mouse) switches and USB
peripherals sharing devices. With the SV231USB and
SV431USB, you can easily operate up to 2 or 4 PCs,
G3/G4 Macs, or iMacs respectively from the 1 USB
keyboard, 1 USB mouse, and 1 monitor saving you
space, time, equipment and money. Its peripheral
sharing function enables you to share more USB
peripherals among all computers.
Installation is easy as connecting USB A-B cables to the
computers and to the StarView switch. Computer
selecting is as easy as front panel button pressing. The
built-in USB hub ensures smooth switching from one
computer to the other. The StarView switches provide the
easiest way to manage multiple computers with USB
interface and share USB peripherals among computers.

2
Features
?Manage 2 or 4 PC, G3/G4 Macs, or iMacs from one
USB keyboard, mouse and monitor with the
SV231USB and the SV431USB respectively
?2 or 4 computers share up to 2 or 4 different USB
peripherals with the SV231USB and the SV431USB
?Front panel push buttons for easy computer selection
?No drivers needed for keyboard and mouse operation
?Supports keyboard and mouse plug-n-play
?High VGA resolution: 19230 x 1440
?Buzzer sounds for computer switching confirmation
?Front button Auto Scan activation
?Selectable Scan Time interval
?Supports the latest DDC2B VGA monitors
?Saves time, space, equipment and power
?USB self-powered operation
?No software required

3
System Requirements
Console Side
One VGA, SVGA or Multisync monitor
One USB keyboard
One USB mouse
Computer Side
Each USB enabled computer must be connected to the
StarView switch by:
One HDB15 male-to-female VGA cable or monitor
One USB A-B cable with Type-A and Type-B plug for
USB devices, as shown in figure 1.
figure 1:USB A-B cable
(Note: An optional HDB-15 to DB-15 VGA adapter is
required for Mac computer VGA ports)

4
Installation
PC BIOS Notice
The following BIOS setup changes are necessary for
PC users and not necessary for Mac users:
1. In STANDARD CMOS, set HALT ON ERROR to ALL
BUT KEYBOARD
2. 2. In PNP and PCI SETUP, set PNP OS
ONSTALLED to YES and set USB IRQ to ENABLED
Note: The StarView switch is applicable for USB
keyboard and mouse switching from one computer
to the other. If you plan to share other peripherals
such as a CCD camera, printer or scanner, it is
necessary to shut down the driver of the computer
before switching to another computer. Because port
switching is equivalent to unplugging the USB cable
from one computer and plugging it into another one,
some USB drivers check attached USB peripherals
all the time and do not accept plug-n-play functions.

5
Console Connection
Before installation, make sure all devices and computers
to be connected to the StarView switch have been
turned off.
Plug a monitor to the Console’s VGA port; plug a USB
keyboard and a USB mouse to any two of the Console’s
USB ports as shown in figure 2.
For SV431USB only: As an option, the Master
StarView is either SV431 or SV431D to be linked to
the SV431USB with a mini-DIN8 male-to-male cable.
The SV431USB can operate as USB-peripheral
sharing devices
Figure 2: Console Connection

6
Computer Connection
Use a HDB15 male-to-female cable to connect from a
computer’s VGA port to the StarView’s VGA port of the
PC side, as shown in figure 3.
Use a USB A-B cable to connect from the StarView’s
USB port on the corresponding computer (A connector is
the flat connector) as shown in figure 3.
Figure 3: Computer Connection

7
Operations
Front Panel
1. On-line LED and Selected LED:
When the LED turns green, the connected computer
is powered-on. When a computer is selected its
corresponding red LED illuminates.
2. Push buttons:
Each computer has a button associated with it on
the front panel for selection.
Auto Scan
Auto Scan automatically cans through computers one by
one in a fixed interval (see Scan Time below).
Note: keyboard or mouse is not operable during
Auto Scan.
Scan Time
It sets the scan interval for Auto Scan. The Scan Time
options are 3, 8, 15 and 30 seconds.
Note: Scan Time is automatically set to the default of 3
seconds when the KAG switch loses power.

8
For SV231USB
To activate the Auto Scan, press and hold the
pushbutton down for 2 seconds until you hear a long
beep followed by a short beep. To exit from it, tap the
pushbutton again.
To change the Scan Time interval, press and hold the
pushbutton for 4 seconds until you hear two long beeps.
By tapping the pushbutton each time, the SV231USB
responds with 1, 2, 3 or 4 beeps corresponding to 3, 8,
15 or 30 seconds respectively. Once set, leave the
SV231USB as it is and it will automatically return for
normal operation.
For SV431USB
To activate Auto Scan, press down front panel push
buttons “3” and “4” simultaneously. The port LED flashes
during Auto Scan. Auto Scan is effective for powered-on
computers only. To exit the Auto Scan mode, just tap any
one of the pushbuttons.
To change the Scan Time interval, press both front panel
buttons “1” and “2” simultaneously. The Sv431USB
beeps 1, 2, 3 or 4 times for Scan Time of 3, 8, 15 or 30
seconds respectively.