StarTech.com SV831DVIU User manual

Rack Mount DVI USB
KVM Switch
8-Port 1U Rack Mount DVI USB
KVM Switch
SV831DVIU
Instruction Manual
Manual Revision:11/23/2010
For the most up-to-date information, please visit www.startech.com

FCC Compliance Statement
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. 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 to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only
and do not represent an endorsement of a product or service by StarTech.com, or an
endorsement of the product(s) to which this manual applies by the third-party company
in question. Regardless of any direct acknowledgement elsewhere in the body of
this document, StarTech.com hereby acknowledges that all trademarks, registered
trademarks, service marks, and other protected names and/or symbols contained in this
manual and related documents are the property of their respective holders.

i
Table of Contents
Introduction.................................................................1
Packaging Contents.............................................................................. 1
System Requirements .......................................................................... 1
Installation...................................................................2
Hardware Installation............................................................................ 2
Operation.....................................................................4
Front Panel ........................................................................................... 4
Hot-key commands............................................................................... 5
Specifications..............................................................7
Technical Support.......................................................8
Warranty Information ..................................................8

1
Introduction
The SV831DVIU 8 Port 1U Rack Mount DVI USB KVM Switch allows you to
control up to 8 USB connected computers with DVI or HDMI display output
from a single keyboard, mouse and monitor.
The KVM switch offers maximum control, allowing you to switch computers
using hot-key commands or front panel push-buttons. Supporting resolutions
up to 1920x1200 via DVI or HDMI connection (using DVI to HDMI adapter),
the KVM provides the high resolutions recommended for newer displays
allowing you to take full advantage of your screen real-estate.
A perfect addition to any server room operation, this rugged 8 port switch
can be rack-mounted into 1U of cabinet space.
Packaging Contents
• 1 x 1U Rack Mount KVM Switch
• 3 x Power Cord (NA/UK/EU)
• 1 x Set of rack mount brackets
• 1 x Instruction Manual
System Requirements
• DVI/HDMI enabled display device (i.e. monitor, projector, HDTV, etc)
• USB 104-key wired keyboard
• USB 3-button wired mouse
• Computer systems with an available DVI/HDMI and USB port

2
Front View
Rear View

3
Installation
Hardware Installation
WARNING: Prior to installation, please ensure that all of the computers and
the KVM switch are powered down.
Console Connection
The KVM switch is designed to use USB console connections only. A USB
compatible keyboard and mouse and DVI/HDMI* monitor must be used for
the local console.
NOTE: DVI to HDMI adapters sold separately.
Plug a monitor into the Console’s DVI connector; plug a USB keyboard and a
USB mouse into the dedicated USB keyboard and mouse ports on the KVM
switch. Ensure the keyboard/mouse are connected to the proper connectors.

4
Connecting Computer to the KVM Switch
To connect a computer to the KVM switch, use the appropriate DVI/USB
KVM cable (or separate cables) to connect from one of the PC ports located
on the rear panel of the KVM switch to the USB and DVI video ports on the
computer.
1.Use a male-to-male DVI video cable to connect the DVI connector on the
computer’s video card, to one of the KVM’s PC ports (i.e. PC1).
2.Use a USB type A-B Cable to connect the KVM’s USB port (type B,
square connector) for the PC port used in Step 1, and the USB port on the
computer (type A, flat connector).
3.Repeat for Steps 1 and 2 for each PC port on the KVM switch, or each
computer you wish to use on the KVM.
4.Connect the power cord from the KVM to an AC power outlet.
5.Turn the monitor on first, followed by the KVM switch via the power switch
on the rear panel.
6.Power up the first computer/device and wait for it to fully boot and test
keyboard/mouse functionality.
7.Once operation has been successfully confirmed, switch to the next port
and power up that computer/device and confirm.

5
Operation
Front Panel
Port Selection/Link LED
The LED turns green when the connected computer is powered-on. The
corresponding LED will also illuminate red when that PC port is currently
selected.
Port Selection Button
Each push button on the front panel corresponds with a PC port. Pressing
the button will immediately select that port.
K/M Reset
K/M Reset resolves the majority of problems developed by keyboard
and/or mouse device replacement or configuration changes. Press
down buttons 1 and 2 simultaneously for 2 seconds to reconfigure the
whole system without having to turn off the KVM switch or any attached
computers.
Auto Scan
The KVM automatically scans through the powered-on computers in
sequence on a fixed time interval (see Scan Time below).
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 push buttons.
NOTE: When Auto Scan detects any keyboard activity, it suspends the
scanning until the activity stops; it then resumes with the next computer in
sequence. The length of the Auto Scan interval (Scan Rate) is adjustable,
see below.

6
Hot-key commands
A Hot-key command is a short keyboard sequence for selecting a computer,
activating computer scan, etc. A hot-key sequence starts with two left
<CTRL> keystrokes (successively within 0.2 seconds) followed by one or
two more keystrokes. A high-pitch beep will be generated for each correct
hot-key command; otherwise, one low-pitch beep is generated for errors and
the bad key sequence will not be forwarded to the selected computer.
NOTE: Left <CTRL>: refers to the Control key on the left side of the
keyboard.
1~8: refers to the number keys ‘1’~’8’ in the upper row of the keyboard. Do
not use the keypad at the right of the keyboard.
To select a computer by hot-key command, you must know its port number,
which is determined by the KVM switch connections.
EXAMPLES:
Left <CTRL> , Left <CTRL>, 7 : Selects a computer connected to PC port
7 on the KVM switch.
Auto Scan
In this mode, the KVM Switch automatically switches from one power-on
computer to the next, sequentially, at a fixed interval.
Left <CTRL>, Left <CTRL>, F1
When Auto Scan detects any keyboard or mouse activity, it suspends the
scanning until the activity stops. It then resumes with the next computer in
sequence. The length of the Auto Scan interval (Scan Time) is adjustable.
To abort Auto Scan mode, press the left <CTRL> key twice.

7
Manual Scan
Enables you to manually switch back and forth between the powered
computers:
Left <CTRL>, left <CTRL>, F2
Press the <UP> arrow key to select the previous computer and the
<DOWN> arrow key to select the next computer. Press any other key to
abort Manual Scan mode.
Scan Time
To adjust Scan Time, which sets the duration before switching to the next
computer in Auto Scan:
Left <CTRL>, Left <CTRL>, F3
The switch will beep one to four times indicating the scan interval of 3, 8,
15 and 30 seconds respectively.