arTech SV441DUSBI Service Manual

4 Port VGA USB IP KVM Switch
with Virtual Media

SV441DUSBI

DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com

For the most up-to-date information, please visit: www.startech.com

Manual Revision: 07/21/2011

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
o 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 dierent 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.

Table of Contents

Introduction .......................................................................................................................................................1

Features ...........................................................................................................................................................1

Package Contents .....................................................................................................................................1

Hardware Guide ...............................................................................................................................................2

Front Panel ....................................................................................................................................................2

Installation............................................................................................................................................................4

Device Connection ..................................................................................................................................4

Initial Power-Up ..........................................................................................................................................5

Operation .............................................................................................................................................................6

Initial IP-OSD Setting ...............................................................................................................................6

Mouse Setting .............................................................................................................................................9

KVM Switch OSD Operation ...............................................................................................................10

Data-Transfer Rule .....................................................................................................................................11

USB Port Rule ...............................................................................................................................................12

Using the Web Interface .............................................................................................................................13

The Login Screen .......................................................................................................................................13

Web Interface Introduction ................................................................................................................14

Main Menu Selections ...........................................................................................................................15

Network Conguration .........................................................................................................................19

User Accounts .............................................................................................................................................20

System Identication ..............................................................................................................................21

Security ............................................................................................................................................................21

Compatibility ...............................................................................................................................................22

SNMP ................................................................................................................................................................22

RADIUS .............................................................................................................................................................22

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Modem ............................................................................................................................................................23

Serial Ports .....................................................................................................................................................23

Time / Date ...................................................................................................................................................23

Firmware .........................................................................................................................................................23

Purchase Options ......................................................................................................................................24

Status ................................................................................................................................................................24

Port Numbers ..............................................................................................................................................25

Help Menu .....................................................................................................................................................25

Site Map Menu ...........................................................................................................................................25

Copyright Menu.........................................................................................................................................25

Using the Terminal Interface via Serial Port ..............................................................................25

Accessing the VNC Interface ....................................................................................................................26

Web Interface ..............................................................................................................................................26

Native VNC Client ......................................................................................................................................27

SSH Tunnel (with Native VNC client) .............................................................................................28

Using the VNC Menu ..............................................................................................................................28

Bribar Feature ..............................................................................................................................................28

Main Menu ....................................................................................................................................................29

VirtKeys Menu .............................................................................................................................................31

Video Tuning menu .................................................................................................................................32

Accessing KVM Features .............................................................................................................................33

OSD Operations .........................................................................................................................................34

OSD Function Keys ...................................................................................................................................34

Hot Key Commands ................................................................................................................................36

Changing Your Conguration ...........................................................................................................37

Optimizing video performance ..............................................................................................................37

Choose the best video mode ............................................................................................................37

Noisy video cards ......................................................................................................................................37

Network performance ...........................................................................................................................37

Using the Advanced Video Tuning Feature ..............................................................................38

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Using the Modem feature ..........................................................................................................................39

Background...................................................................................................................................................39

Connecting a Modem ............................................................................................................................39

Modem conguration............................................................................................................................40

Conguring the Remote Connection ..........................................................................................41

Accessing the Web Interface .............................................................................................................42

Modem Troubleshooting Guide ......................................................................................................43

Serial Remote Control operation ...........................................................................................................43

Background...................................................................................................................................................43

Connecting Serial Remote Control Modules ...........................................................................44

Using the Web Interface .......................................................................................................................44

Advanced Conguration Using the Integrated SSH Shell ...............................................45

Remote Login via SSH ............................................................................................................................46

Operating Notes ...............................................................................................................................................46

About Security Certicate Warnings .............................................................................................47

Installing the New Certicate ............................................................................................................47

Troubleshooting ...............................................................................................................................................48

Specications .....................................................................................................................................................49

General Specications ...........................................................................................................................49

Supported Protocols ...............................................................................................................................50

Technical Support ...........................................................................................................................................51

Warranty Information ....................................................................................................................................51

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Introduction

The SV441DUSBI 4 Port USB VGA IP KVM Switch with Virtual Media allows for secure local and
remote control of up to 4 computers over a LAN or the Internet. Featuring 2 additional USB ports
for peripheral sharing (USB storage, CD ROM, etc.), allowing le transfers and disk emulation for
remote application and OS installs.

The IP KVM Switch enables BIOS level control and full boot process interaction, and includes
several security features (SSH, SSL, RADIUS and a congurable rewall) to keep your network
safe.

This IP KVM can interact with virtually any device that uses an RS-232 serial terminal (routers,
switches, PDUs, etc.), using the RPORT Module (sold separately). While the 1U rack-mountable
metal chassis makes installation into a rack easy with the 1110EXTRACK.

Features

• Remote, BIOS level access to all connected systems

• Works with PC, Mac, Linux and Sun Systems

• Supports DHCP or manual IP conguration

• User ID and SSL password secure web console

• Supports 32 user accounts with SSL encrypted session and web communication data

• Integrated Web Server for browser-based conguration and administration

Package Contents

• 1 x SV441DUSBI

• 1 x User’s Manual

• 4 x KVM Cables

• 1 x Package of screws

• 1 x Power Adapter

• 1 x Power Cord

Instruction Manual

1

Hardware Guide

Front Panel

2

4

6

8

1

1. Power Supply
Connects to a DC 12V power adapter.

2. HDB15 Connector

Connect to the console monitor.

3. USB Type A Connectors
Connect to the console keyboard and mouse ports.

4. Port LED Indicator

Displays the status of connected PCs (for more specic instructions, see the table below).

5. Setup Button

Press this button to bring up the IP-OSD menu.

6. RJ-45 Connector

Connects to the LAN.

7. RS-232 Connector

Connects to a PC for initial setup.

8. Reset Button

This dual-function button selects Power Reset or Restore Factory Defaults.

9. Auxiliary Input Link

Reserved for multimedia module.

3

5

7

LED Color Meaning

Green Connected to a PC that is powered on.

Red Port selected.

Blue Data-transfer function is enabled.

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9

LED Color Meaning

Green + Blue (Light Blue)

Red + Blue (Light Purple)

Connected to a PC that is powered on and
possesses the data-transfer function.

The selected port possesses the data-transfer
function.

Red + Green (Yellow) The PC that is powered on is selected.

Red + Green + Blue (White)

The selected and powered on PC possesses
the data-transfer function.

Rear Panel

2

1

1. R-Port

For serial device management with Serial Supervisor.

2. USB Type A Connectors

Two additional ports for any USB devices (e.g. memory, printer, etc.).

3. HDB15 Connectors

Connect to 4 servers (or PCs)

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3

Installation

Device Connection

1. Connect the USB keyboard, mouse, and monitor to the console connectors on the

SV441DUSBI.

2. Connect a Cat5 cable to the LAN port of the SV441DUSBI.

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3. Power up the monitor and the SV441DUSBI. The IP-OSD menu should come up

automatically. Follow the on-screen instructions to nish the initial setup.

Initial Power-Up

You must power up the SV441DUSBI with a keyboard, mouse, and monitor connected before
turning on any other devices.

Ensure that the devices you are connecting are powered o before connecting them to the unit.

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Operation

Initial IP-OSD Setting

Power on the monitor and the SV441DUSBI. The IP-OSD menu will automatically appear. Follow
the on-screen instructions to complete the initial setup.

Press the Enter key to enter the Advanced
Settings Menu. Once the desired settings have
been achieved, press ESC to close the Menu.

It is recommended that you change the
password immediately and make a note of it.

Press Enter to go to the next menu.

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The IP KVM can have its IP address assigned
dynamically, or it can be given a xed IP
address. If you are unaware of the IP address,
obtain it from the network administrator.

Press Enter to go to the next menu.

Enter the Netmask (Consult your network
administrator if necessary).

Enter the Gateway (Consult your network
administrator if necessary).

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Enter the address (Consult your network
administrator if necessary).

Wait for the SV441DUSBI to apply the setting
changes.

Press the Enter key.

Press Enter to complete the setting process.

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Mouse Setting

Many operating systems oer a feature called mouse acceleration that allows the user to adjust
the responsiveness of the cursor on the screen to the physical movements of the mouse. While
this is usually a benecial interface enhancement, it can interfere with the operation of the
unit and should be disabled on the managed computers before a remote session is attempted.
Follow the instructions below to disable mouse acceleration for the operating system installed
on each managed computer.

1. Open the Mouse Properties application located in the Control Panel.

2. Under the Motion heading, center the arrow used to modify the pointer speed.

3. Disable the Enhance Pointer Precision setting by unchecking its respective checkbox.

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KVM Switch OSD Operation

To enter the Hotkey Menu, press the Ctrl key twice within two seconds.

• L-CTRL is the Ctrl key located on the left side of the keyboard.

• 1~8/A~H are the number keys 1-8 located in the upper row of the keyboard, and the

character keys A-H (not case sensitive).

Please Note: Do not use the keypad at the right of the keyboard.

To enter the KVM Menu, press the Ctrl key three times within two seconds. Once entered, the
menu will display a list of the connected computers with corresponding port numbers, names,
and statuses, as shown below.

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To access additional menu functions, press the F4 key. A new screen will appear displaying more
functions, as shown below.

To access the remaining menu functions, press the F4 key again. This will bring you to the screen
shown below.

Data-Transfer Rule

Manual stick-on: Data-Transfer function resides in one particular KVM-Channel, pressing Ctrl +
Ctrl + T to switch to the next KVM-Channel.

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Tracking KVM-Channel: Data-Transfer function tracks the selected KVM-Channel.

USB Port Rule

Manual stick-on: USB-Port resides in one particular KVM-Channel, pressing Ctrl + Ctrl + U to
switch to the next KVM-Channel.

Tracking KVM-Channel: USB-Port tracks the selected KVM-Channel.

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Using the Web Interface

The Web interface is the most intuitive way to congure the SV441DUSBI, oering a Java-based
VNC client that can be used to control the host computer from a remote location, as well as
support for any industry-standard HTML Web browser. You can access the Web interface by
opening your Web browser and entering the IP address of the SV441DUSBI you wish to access/
congure. The IP address will be either a) the address assigned by your DHCP server as identied
in the previous section, or b) 192.168.1.123 if your network uses static IP addressing.

The Login Screen

Before you can access the Web conguration interface, you must enter a username and
password. The default username and password as shipped from the factory is username admin,
with a password of admin.

NOTE: Before the login screen appears, your web browser may display a warning about an invalid
security certicate. This does not aect the security of your data in any way. Whenever you are
prompted about a certicate security problem by your browser or the Java VNC client, always
choose the option to continue.

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Web Interface Introduction

After the initial login screen, the screen is divided into several sections, a number of which will
remain on the screen at all times while viewing the Web Interface:

Name

Main

Menu

Name: At the top of the screen, the name of the machine being controlled is displayed

Main Menu: At the left-most side of each page, the Main Menu is displayed, allowing users to

choose functions oered by the Web Interface.

Help area: The right-most column oers an optional help summary for each page. If you don’t
wish to use this information, it can be closed by clicking the small [x] at the top right (within the
Web Interface). If closed, click on the Help button near the top right of each page to re-display it.

Please note: The aforementioned sections of the Web Interface will remain on the screen at all
times. Selected categories will be displayed in the center of the screen.

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Main Menu Selections

Please note: Some of the following items may not be present based on assigned user privileges
(i.e. non-admin users will not see any items under the Admin category).

Home: The Home screen oers a Screen Thumbnail view of the controlled computer, as well
as basic le transfer functions, Monitoring Information, System Identication and VNC Client
options:

Preferences: The Preferences screen oers several conguration options pertaining to the
functionality of the SV441DUSBI. Here, you are able to customize settings to optimize overall
performance (i.e. Encryption options, VNC options, display and bandwidth options etc.),
according to each user’s individual preferences. Please save your selections by clicking the Save
Changes button.

Snapshots: The Snapshots screen allows you to view and save a screenshot of the controlled
computer in its current state. This screenshot will update periodically (automatically). Saved
image les are stored in PNG format.

Logout: Clicking on Logout will terminate your Web Interface section. To re-initiate the Web
Interface, you will be required to re-enter your username and password.

VNC: To launch or disconnect a Virtual Network connection with the controlled computer, click
on Connect or Disconnect as appropriate.

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File Transfer

The SV441DUSBI is able to emulate a virtual USB disk drive on any host connected using the USB
Server Interface Module (SV5USBS). Depending on conguration, it will appear to the host as a
oppy drive (1.44MB), an 8MB RAM Disk or a CD-ROM. The host computer does not require any
special drivers or other conguration. You can transfer les to the virtual disk at any time.

SV441DUSBI will wait until the host is not using the disk, and add or remove the les.

When the host computer next looks at the drive, it will notice the changes. You can read les
from the virtual disk at any time, as long as the host is not actively writing to the disk. All of this
happens in the background, and you may treat the virtual disk as a shared drive without any
restrictions.

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• Access to the les is performed through the web interface. Contents of the root directory are

shown on the home page. You can download les as you would any le on the web (right­click and Save target as).

• To upload a le, click Browse, select a le, and then click Upload.

• Files and directories may be deleted using the Delete button situated to their right.

When emulating a oppy disk or RAM Disk, the data is stored in RAM on the SV441DUSBI itself.
In order to emulate a CD-ROM disk drive, a web server is required to provide the CD-ROM image
data. The Web server must be accessible to the unit, which communicates with it constantly as
data is needed.

Floppy mode: Choose the Format as oppy button to switch to oppy mode. Under Windows,
the drive will be identied as a “high density oppy” and will typically be assigned a drive letter
of B:

The capacity is limited to 1.44 megabytes in this mode. The purpose of supporting oppy
mode is to permit the use of oppy-disk images generated by other systems (e.g. the ash BIOS
upgrade process is performed with a special oppy and is bootable, emergency repair disks
are often oppy-based etc.). You can transfer bits from that oppy to the SV441DUSBI (use the
upload disk image form) and boot from the special oppy.

CD-ROM Mode: The SV441DUSBI does not store any data in this mode. Instead, it emulates a USB
CD-ROM drive with a disk inserted. The data from that disk must be provided by an external web
server. You will need a copy of the CD-ROM contents that you want to emulate as an ISO le. This
is a byte-for-byte copy of track one (the data track) of a data CD-ROM. The ISO le must be made
available on a web server that can be accessed by SV441DUSBI. To switch to this mode, type in a
URL pointing to the ISO image, and click on Commit. The system will connect to the web server
and test the le for access. If successful, you will be shown a short report on the le contents,
and the disk will be ready to use.

Please note that the only way to preview or browse the contents of the CD-ROM image, is from
the host.

CD-ROM Web Server Requirements:

• Data must be hosted on a web server that the SV441DUSBI can access directly.

• An image of a bootable CD-ROM disk can be used by the BIOS to boot an operating system.

• The image le itself may be any size, but it will typically be less than 700Mb. Normally this le

will be an ISO image (an ISO-9660 le system) but any disk image may be used.

• The web server must support “byte ranges”. Persistent connections are used, if available, as

this greatly improves performance. “Read-only” access is provided; writing is not supported.

• CD-Rom block size must be 2048 bytes. XA-Data type tracks are not supported.

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RAM Disk mode: Choose the Format as RAM Disk button to switch to RAM Disk mode. This
mode is intended to facilitate simple data transfer between the remote user and the host
computer. It will be recognized by Windows as an 8MB removable disk and assigned a drive
letter. You can easily drag and drop les up to 8MB in size to this device.

Disk Formats: When you choose the Format as... button, the disk image stored in RAM is
formatted as an empty MS-DOS disk, with a single le called Put les here...TXT.

SV441DUSBI is able to read most MS-DOS/Windows formatted disks and presents the les via the
Web interface. However, disk emulation occurs at the lowest level, so other disk formats can be
used if you have the tools needed to create and read the disk images.

At the bottom of the page are the upload and download options for the entire disk image. Any
image that is exactly 1,474,560 bytes long will be treated as a oppy. Images of other sizes are
supported up to 8MB.

Booting from USB Disk:

If the host computer’s BIOS supports USB boot devices, it is possible to boot from the emulated
CD-ROM or oppy - allowing complete operating system replacement without any on-site
intervention.

The rst step is getting a bootable disk image onto the emulated oppy or CD-ROM. For CD­ROM images, you will need an .ISO image from a disk that contains special bits to enable booting
(“El Torito” standard). Nothing special is needed when reading the ISO from a working, bootable
CD-ROM.

Please note that each BIOS manufacturer oers varying levels of support for USB boot devices
and may require conguration methods that are unique (to the manufacturer) in order to utilize
this feature. Similarly, please note that many BIOS’s provide a simplied USB host stack and oer
drivers that may not oer suitable reliability.

To create a bootable oppy, you can format the emulated oppy from the target system, or read
the data from a working boot oppy. This can be done from Windows using Disk Copy (right
click on the drive letter in the Windows Explorer) or by using a program like “RAWRITE”.

Once you have a bootable image (CD-ROM or oppy) working on the Enterprise Class KVM unit,
you must adjust your BIOS settings to tell it to boot from a USB device.

Please note: You must select USB CD-ROM as the boot device for the BIOS, if using a CDROM
image and USB Floppy if using a oppy image.

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Network Conguration

DHCP: Automatic network conguration using DHCP is: Enabled/Disabled. This feature applies
only to the LAN port on the rear panel, and is enabled by default. When enabled, the unit will
automatically congure itself with an IP address when a DHCP server is present. When disabled,
the LAN port will use the values assigned to it on the IP Addresses and Routing table below.

IP Addresses and Routing: This table allows you to assign IP information for the LAN and WAN
ports separately. If you are using DHCP, the values for the LAN port will be lled in automatically
and any changes made will not aect the setup.

Domain Name Server: This section allows you to specify DNS servers and the default DNS
domain sux in use on the network. If DHCP is enabled, some of these values may be supplied
automatically.

Clicking the Commit button applies any changes made on this page, but leaves the old settings
active until the next time the unit restarts. Clicking Make changes eective now applies the
changes and restarts the SV441DUSBI so the new settings take eect immediately.

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Ethernet Address (MAC Address): This is the Ethernet hardware address of this unit’s LAN port.
It is set at the factory and cannot be changed. You may need this number to congure your
DHCP server.

Dynamic DNS Conguration: Dynamic DNS (DDNS) is a method, protocol, or network service
that allows a networked device using the Internet Protocol Suite to notify a domain name server
to change, in real time, the active DNS conguration of its congured hostnames, addresses or
other information stored in DNS.

Today, numerous providers, called Dynamic DNS service providers, oer such technology and
services on the Internet. They provide a software client program that automates this function.
The client program is executed on a computer or device in the private network. It connects to
the service provider’s systems and causes those systems to link the discovered public IP address
of the home network with a hostname in the domain name system. Depending on the provider,
the hostname is registered within a domain owned by the provider or the customer’s own
domain name.

User Accounts

This menu will allow you to add accounts other than admin to the system. These accounts will
not have the authority to change settings, but can access the Web interface and log into the VNC
console. Selecting Delete permanently removes the user from the system. If you enter values
for a user that does not already exist under Edit User Details, the system will create that user for
you when you click Record changes. If the user already exists, you may change the password for
that user.

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System Identication

Machine Name: This is the name that is used to uniquely identify this machine. You may wish
to create a DNS entry that matches this name. The name is provided as the Client Name for the
DHCP server. It is also shown at the top of each page in the
web browser interface and is the “desktop name” for VNC
clients.

Other identication details: These values are for
information purposes. They are visible from the VNC client
and via SNMP (if enabled).

Location: This string is sent as the system.sysLocation value
over SNMP. It should describe the location of this system.

Contact Name: This string is sent as the system.sys Contact
value over SNMP. It should describe who to contact regarding
this machine. Typically it includes an email address.

Network Address: This value is not used in our
conguration, but is meant to store a user-dened value that
identies the controlled machine on the network. The ocial
DNS name of the controlled machine is an obvious value to
put here, but you may use it for any purpose.

Description: A user-dened description for the controlled machine.

Security

This menu allows you to congure a number of settings, including the
admin password. Be careful when making any changes remotely, as
altering these features could make the unit inaccessible through Web
conguration (i.e. due to rewall ltering). Note that any password
changes you make will have to be entered twice to protect against
user error.

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Compatibility

The Compatibility menu oers features
that may provide enhanced functionality
with certain KVM and power products,
such as StarTech.com’s Remote Power
Switch (PCM8155HNA). These can be
left at their default values if you are not
connecting the unit to a KVM or power
management device.

SNMP

The SNMP menu allows you to congure the SV441DUSBI so it can be
recognized and managed using industry standard Simple Network
Management Protocol software.

RADIUS

The RADIUS server requires the IP address, the
UDP port number (1812 - default or 1645) and
the shared secret. The shared secret is used
to encrypt communications and corresponds
to a shared password for the RADIUS server
and the client machine. Two additional servers
may be dened for backup purposes. Each
server will be tried in order using the indicated
number of retries and timeout period, which are
congurable on the same page.

Remember to enable RADIUS after conguring it. While RADIUS authentication is enabled, the
locally dened accounts on the Server Remote Control unit will not be used, except for the
SSH login. However, if a user name in the form “name.local” is given at the RADIUS prompt, the
system will use “name,” check the password locally, and skip RADIUS authentication. Delete all
local accounts to avoid this behavior. When connecting via VNC, a login screen is generated that
asks for a RADIUS username and password.

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Modem

Enable this to allow the modem to answer the phone and
start a PPP connection. Enable modem connections (PPP)
via serial port/modem.

Serial Ports

The Serial Ports menu allows you to manage and connect
to devices connected to the unit using the R-Port on the
SV441DUSBI.

Time / Date

Date and time are stored without consideration for time
zone. If you are controlling multiple sites in dierent time
zones, we recommend you use UTC (Universal Coordinated
Time, also sometimes called GMT or Zulu) for all machines.

If the computer you are using to view this page knows the
correct time, just press the button to set the time and date to
that of your browser.

Firmware

The rmware on the Server Remote Control is eld upgradeable. To
upgrade to another version:

1. Login your IPKVM as “admin”

2. Click “Firmware”

3. Click “Get latest version”

4. Click http://18235253.net/......

5. Save the latest rmware le to your computer. It will take a few

minutes for downloading, depends on the speed of your
network.

6. Upload the latest rmware le from your computer to the

IPKVM. It will take more than 5 minutes for uploading and
writing it to the ash memory of the SV441DUSBI.

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Auto Self Upgrade: The SV441DUSBI unit includes an innovative feature allowing it to upgrade
itself over the internet. Simply click on the button labeled Upgrade to Latest and the unit will
use the internet to download the latest version of the system rmware and then install it.

If it cannot access the Internet directly (perhaps due to a web proxy or other rewalls), then a
page will be shown that prompts your browser to download the required le. Save this le to
disk and then manually upload it as described in the next section.

Purchase Options

Certain rmware features may be oered separately from the base unit, in order to reduce the
initial cost for the Server Remote Control unit.

NOTE: If you wish to upgrade after the system is in operation, go to the Manage Firmware
page and scroll down to the section entitled Purchase Options. Look for a unique code, such as:
4-C80C-B960-1-0. If you provide this code to the technical support department, they can give
you an unlock code that will open any feature you request. Type the provided code into the area
provided and click Submit. The new features opened by the code will be enabled immediately,
but you may need to reboot the unit to begin using certain features.

Manual Upload: Enter the name of the rmware le that you downloaded from StarTech.
com into the eld provided (or use the Browse... button). Press Start Upload and wait until a
successful upload message is shown.

NOTE: Remember the following during the rmware upgrade:

• Do NOT turn o power to unit before this operation completes successfully.

• The unit will sometimes reboot as part of the upgrade procedure, depending on which

system component is being upgraded. You will have to reconnect and re-login in those cases.

• Wait at least two minutes after pressing Start. Do not assume the upload did not work, the

upload could simply be slow.

• Each distributed le upgrades a dierent component of the system. Be sure to apply all les

provided as part of an upgrade. The system knows what to do with each le you give it, and
they are checked for validity before being applied.

Auto Self Upgrade: Clicking the Upgrade to latest button will
automatically download and install necessary revisions. To download
upgrades for manual installation, please click on Get latest version.

Status

The Status screen displays a system security log, various system settings,
and the ability to generate a copy of the system conguration in plain
text format.

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24

Port Numbers

Port Numbers provides a table allowing you to
change TCP port values for services available on
the SV441DUSBI. By default, they are factory-set
to common Internet values. You may wish to
enhance security by disabling services that you
will not use with the unit. To disable a service,
change its port number to 0. When you have
made any necessary changes, click Commit
changes to use the settings the next time the
SV441DUSBI restarts. To force the unit to restart
immediately, click Restart Servers.

Help Menu

Provides a FAQ (Frequently Asked Questions) listing to assist you with the features and operation
of the SV441DUSBI.

Site Map Menu

This menu provides a directory of each setting available on the Web congurator.

Copyright Menu

Provides the Terms of Use and other information related to the rmware and software on the
SV441DUSBI.

Using the Terminal Interface via Serial Port

The terminal interface can be accessed via the serial port for conguration of the basic settings
of the SV441DUSBI. While not intended to be a substitute for the Web interface, it does allow you
to congure some of the same functions. The menu list below describes the options that can be
modied through the terminal interface.

Note that you must use the W option to conrm and apply any changes made before you exit
the terminal session.

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25

Accessing the VNC Interface

There are three ways to communicate with the Server Remote Control unit in order to control the
host computer:

Web interface: The integrated Web server includes a Java-based VNC client. This allows easy
browser-based remote control.

Native VNC client: There are several third-party software programs that use the standard VNC
protocol, available in open source and commercial VNC clients.

SSH access: By default, there is a standard SSH server running on port 22 (the standard SSH
port). Once connected via SSH, the VNC trac is tunneled through the SSH connection and
encrypts the VNC session. Each method will be discussed briey in the following section. The
type of encryption method or client used is not critical.

Web Interface

Using SV441DUSBI’s web interface requires a browser, with cookies and JavaScript enabled. To
start the Java VNC client, login to the Web conguration interface and click on the thumbnail of
the desktop on the Home menu, or click on the Connect button, located in the Main Menu.

You may need to upgrade Java support in your browser; however, most modern browsers
come with a version of Java that is compatible with this application. The Java VNC client makes
a connection back to the Server Remote Control unit over port 5900 (by default) or 15900, if
encrypted. The encrypted connection is a standard SSL (Secure Socket Layer) encrypted link that
encrypts all data from the session, including the actual video pictures.

Because Java is considered a “safe” programming language, the Java VNC client has some
limitations. Certain special keystrokes cannot be sent, such as “Scroll Lock” on the keyboard.

This client software requires the use of Java 2 (JRE 1.4) to enable features like wheel
mouse support. Sun Microsystems’s Java site, www.java.com, is an excellent resource to
ensure your browser and operating system are updated accordingly.

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Native VNC Client

This system implements the VNC protocol, so any o-the-shelf VNC client can be used. There
are over 17 dierent VNC clients available and they should all work with this system. This system
automatically detects and makes use of certain extensions to the basic RFB protocol that is
provided by the better VNC clients.

The recommended client is TightVNC (www.tightvnc.com). Binaries are available for Windows,
Linux, MacOS and many versions of Unix. Source code for all clients is available there too. This
version of VNC is being actively developed. The authoritative version of VNC is available from
RealVNC (www.realvnc.com). This source base is the original version of VNC, maintained by the
original developers of the standard. For a commercial, supported version of VNC, you should
consider TridiaVNC (www.tridiavnc.com). Their version of VNC is a superset of TightVNC and
contains a number of enhancements for use in a larger corporate environment.

NOTE: Some native VNC clients may require a ag or setting indicating they should use BGR233
encoding by default. If this ag is not set, you may see a garbled picture and the client will fail.
The Unix versions of VNC require the ag -bgr233. For examples on using this ag, review the
commands in the following section.

SSH Tunnel (with Native VNC client)

If you are using openssh, here is the appropriate Unix command to use, based on the default
settings on a machine at 10.0.0.34:

ssh -f -l admin -L 15900:127.0.0.1:5900 10.0.0.34 sleep 60

vncviewer -bgr233 127.0.0.1::15900

Notes:

• A copy of these commands, with appropriate values lled in for your current system

setting, is provided in the on-line help page. This allows you to “cut-and-paste” the
required commands accordingly.

• You have 60 seconds to type the second command before the SSH connection will be

terminated.

• The port number “15900” is arbitrary in the above example and can be any number

(1025...65535). It is the port number used on your client machine to connect your local
SSH instance with the VNC client. If you want to tunnel two or more systems, you will
need to use a unique number for each instance on the same SSH client machine.

• Some Unix versions of the VNC client have integrated SSH tunneling support. Some

clients require your local user id to be the same as the userid on the system.

Use a command like this: vncviewer -bgr233 -tunnel 10.0.0.34:22

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27

Using the VNC Menu

One of the unique features of this product is the VNC menu system. Whenever you see a window
with a dark blue background and grey edges, this window has been inserted into the VNC data
stream so that it is eectively laid over the existing video. These menus allow you to control the
many features of the SV441DUSBI without using the web interface or a custom client.

When you initially connect to the system, a Welcome Window will appear indicating which
system you are controlling, what encryption algorithm was used, and what key strength is
currently in eect. Click anywhere inside the window to clear it, or wait ten seconds.

Bribar Feature

Along the bottom of the VNC screen is a dark blue bar with various buttons known as the
Bribar. Its purpose is to show a number of critical status values and to provide shortcuts
to commonly used features. Here is a snapshot of what it may look like. There will be slight
dierences based on optional features and system conguration. Starting from the left
side of the Bribar, each feature and its function is outlined below.

Bandwidth: Indicates current average bandwidth coming out of the Server Remote
Control unit. The second number measures round trip time (RTT ) of the connection when
it was rst established.

Resync: Re-aligns the remote and local mouse points so they are on top of each other.

Redraw: Redraws the entire screen contents; occurs immediately.

÷4, ÷8: Switches to thumbnail mode, at indicated size (i.e. 1/4,1/8 )

Ctrl-Alt-Del: Sends this key sequence to the host. Works immediately.

Alt-F4: Sends the key sequence to host (closes windows).

KVM: Sends the KVM “hotkey” sequence. This function is only enabled when you have

congured the unit to expect a particular brand of KVM downstream. It sends the key
sequence to launch the KVM’s on-screen display (OSD) menu. This button is only present
when a KVM model is selected in the Web interface.

Menu: Shows the main menu.

Video: Shows the video-tuning menu where the picture quality can be adjusted.

Keys: Shows the VirtKeys menu, which allows you to simulate pressing special keys such

as the Windows key or complex multi-key sequences.

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[1][A][S]: These ags show the state of the keyboard lights, NumLock, ShiftLock and
ScrollLock respectively.

X: Click this button to close the Bribar and hide it. This can be very useful on a client
machine that has a screen size the same as the remote machine. No vertical screen space
is wasted with the Bribar. Use double-F7 to start the main menu, then click on the Bribar
to restore the feature.

Other items: If the server’s screen is larger than 1024x768, additional buttons will be
shown to the right of the above listed items. These are all keyboard shortcuts and are
duplicated in the Keys menu.

Main Menu

To access the main menu, quickly press F7 twice. You must press the key twice within one
second. If you press it once or too slowly, then the F7 key(s) are sent to the host, just like
any other key. This is the only way to get into the menu system, if the Bribar is disabled.
Here is the main menu for a typical system:

The main menu window may be moved by clicking and dragging on the title bar. It can
be closed by pressing Escape, or by clicking on the red X in the top right corner. Here is a
guide outlining various elds from the Main Menu. Most of the functions operate immedi­ately. Other functions require a response to a conrmation prompt rst before performing

the requested function.

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29

• Identication: Fixed text label that is dened by the user in the Web interface. This does not

aect the operation of the system and is intended to assist with administration.

• Status: Current status of the attached system and the status of the unit.

• B/W Min/Avg/Max/Auto: Bandwidth control, wherein current operation will be indicated

with white highlighting. If you choose Min/ Avg/Max then you will override the default, Auto.
As the automatic mode measures actual network performance, you may see the
current mode switch from Min up to Avg or Max. The dierent modes indicate more time
spent on compression versus more bandwidth. There is no visual dierence between the
modes, but there can be a noticeable dierence in speed and smoothness.

• Mouse Resync: Resynchronizes the mouse pointer so that the local and remote mouse

pointers are on top of each other.

• Take Control: When multiple users are connected to the same system, use this button to take

control away from another user. Only one user may control the keyboard and mouse at any
time. All users see the same picture.

• Thumbnails: Switch to smaller thumbnail size screen images (click anywhere on thumbnail

to restore it). Each button corresponds to a dierent sized image, from half size to one­sixteenth.

• Logout: End the VNC login session and disconnect.

• Video Tuning: Sub-menu with video adjustments, to be used when automatic picture

adjustment does not provide a good quality picture.

• VirtKeys: Virtual keyboard provides a menu with special keys that are often hard to generate

but needed by the remote system. The most common key sequence is the [Ctrl] – [Alt] – [Del].

• KVM Menu: Generates the key sequence used to access the on-screen menu for an

enterprise-class KVM switch. When these conventional KVM switches are combined with the
SV441DUSBI, this key makes accessing their built-in menu easier, especially from the Java
client. This button will only be shown when an external KVM has been enabled via the web
interface.

• Bribar: Closes or reopens the Bribar window along the bottom of thescreen.

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30

VirtKeys Menu

Clicking any button in the top half of the window simulates pressing and releasing the indicated
key. In the bottom area of the screen, clicking will simulate the indicated Meta key being
pressed. You may then click in the top part to send another key and release the Meta key at
the same time. Alternatively, you may move the mouse outside this window, press the regular
key, and then choose -RESET- to release all depressed keys. The VirtKeys menu can be left open
while using the host system. You can then click the required button at the suitable time, and still
interact with the host in a normal fashion.

Examples:

• [Ctrl]-[Alt]-[F4]: Use L-Ctrl then L-Alt in the Toggles area. Then click F4.

• To bring up the Start menu under Windows: Click the L-Windows button at the top left of the

above window.

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31

Video Tuning menu

Use the Auto Everything button to automatically ne-tune all three adjustments. If the test
pattern for Color Oset calibration is not present on the screen, then the Color Oset adjustment
is skipped.

Changes/frame indicates the number of 16x16 blocks of video that are being sent, on average,
for every frame of video. With a static image being displayed by the server, this number will be
zero (shown as -nil-).

Moving the mouse, for example, will cause the number to jump to about 2 or 3. You may use this
number to judge the picture quality as you adjust the controls on this menu.

Picture Positioning aects the image position on your screen. If you see a black line on either
side of your screen, or at the top or bottom, you can use the arrow buttons to shift the image in
that direction. Pressing Auto does the same thing for you automatically. Use Save to save the
changes you have made manually. Since this adjustment depends on the video mode, separate
values are stored for each video mode.

Color Oset is a ne tuning adjustment that requires the use of a test pattern. There is a copy
of the test pattern available on the Help! menu of the integrated web server. You must arrange
for that image to be shown on the host computer. Do not allow scaling, cropping or any other
changes to that image. Press the Auto button and the system will calibrate color for the best
possible picture in approximately one minute. If the system cannot nd the test pattern on the
screen, it will say so. Check that the pattern isn’t scaled or covered up. It’s important to do this
operation in 24-bit or 32-bit color video mode (i.e. truecolor). Although the algorithm may work
in 16-bit or 8-bit color video modes, the results will not be optimum and usually it won’t be able
to recognize the test pattern.

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Pressing the Advanced button will open the Advanced Video Tuning menu. While the vast
majority of users will not need to adjust these settings, it oers added control of the video
settings of your VNC sessions.

Sampling Phase does not normally need to be used since the SV441DUSBI tunes the sampling
phase whenever the video mode changes. This button does not require a test pattern, but will
perform optimally when used with our standard test pattern. For your reference, the sampling
phase number is shown to the right of the Filtering button.

Noise Filter controls the advanced video ltering of our system. Unlike other ltering
algorithms, our noise lter will only remove noise. It does not degrade the signal quality or
readability of small text. You may turn it on and o using the indicated button, or set it to other
values using the arrows. Higher numbers cause more ltering and may cause artifacts when
moving windows. The most common visual artifact is a vertical line dropping when moving
windows horizontally. You may use the Redraw button to correct these, or use a lower lter
number. At minimum, these values must be greater than two.

Accessing KVM Features

Once you can access and congure the networking component of the Server Remote Control,
you can use it to select and control the managed computers connected to it. This section
describes how to use the on-screen display (OSD) system to manage your computers. Once
you have established a VNC session with the SV441DUSBI, you can access the KVM features as
though you were at a local console.

OSD Operations

By hitting the left <CTRL> key twice within two seconds, you may see the ‘Hotkey Menu’ if it is
enabled (an OSD option). Or, by hitting the left <CTRL> key three times within two seconds,
you will see a KVM MENU screen showing a list of the computers with corresponding channel
addresses, names and status.

• The port number (or channel address) of the currently selected computer is displayed in red

in the top right of the screen.

• The device name is green if the device has power and is ready for selection or white if it has

no power. The OSD menu automatically updates the color when it is activated.

• Use the <UP> and <DOWN> arrow keys to highlight a computer and the <ENTER> key to

select it.

• Press <ESCAPE> to exit the OSD menu and remove the OSD menu from the screen.

• An eye mark on the right side of the screen indicates that the computer has been selected to

be monitored in Scan mode. You can switch this mark on and o using function key <F2>.

• Press <ESCAPE> to exit the OSD and to return to using the selected computer. The computer

name is shown on the screen.

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OSD Function Keys

You can use the function keys when the OSD menu is active.

Function key <F1>

Edits the name of a managed computer or a Slave KVM. First, use the <UP> and <DOWN> arrow
keys to highlight a channel then press <F1> followed by name entry. Each name can be up to
14 characters long. Valid characters are A to Z, 0 to 9, and the dash character. Lowercase letters
are converted to uppercase. Press <BACKSPACE> to delete a letter one at a time. Nonvolatile
memory stores all name entries until you change, even if the unit is powered down.

Function key <F2>

Marks a computer to be scanned by switching the eye mark on or o. First, use the <UP>
and <DOWN> arrow keys to highlight the device, then press <F2> to switch its eye mark
on or o. If Scan Type is Ready PC + Eye (see Function key <F4>), only the powered and
eye-marked computers will be displayed in Scan mode.

Function key <F3>

Locks a device (a computer or a Slave) from unauthorized access. To lock a device, use
the <UP> and <DOWN> arrow keys to highlight it, then press <F3>. Now, enter up to 4
characters (A to Z, 0 to 9, dash) followed by <ENTER> as new password. A Security en­abled device is marked with a lock beside its channel number. To permanently disable the
security function from a locked device, highlight it, press <F3> then enter the password. If
you want to access the locked device temporarily, simply highlight it and press <ENTER>.
Enter the password and you can access the device. The device is automatically re-locked
once you switch to another device. During Scan mode, OSD skips the security-enabled
device.

Function key <F4>

More functions are available by hitting <F4>. A new screen pops up displaying the
functions described below. Most of them are marked with a triangle indicating there are
options to choose from. Using the <UP> and <DOWN> arrow keys, select the function
and press <ENTER>.

Available options will be shown in the middle of the screen. To select an option, use the

<UP> and <DOWN> arrow keys then press <ENTER> to select the options. You can press
<ESCAPE> to exit at any time.

Auto Scan

In this mode, the KVM automatically switches from one powered computer to the next
sequentially in a xed interval. During Auto Scan mode, the OSD displays the name of the
selected computer. When Auto Scan detects any keyboard or mouse activity, it suspends
the scanning until activity stops; it then resumes with the next computer in sequence. To
abort Auto Scan mode, press the left <CTRL> twice. Scan Type and Scan Rate set the scan
pattern. Scan Type (<F4>: More\Scan Type) determines if scanned computers must also
be eye mark selected. Scan Rate (<F4>: More\Scan Rate) sets the display interval when a
computer is selected before selecting the next one.

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Manual Scan

Scans through powered computers using keyboard control. Scan Type (<F4>: More\Scan Type)
determines if scanned computers must also be eye mark selected. 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 the Manual Scan mode.

Scan Type

Ready PC + Eye: In Scan mode, scans through only powered computers that are eyemarked

selected.

Ready PC: In Scan mode, scans through all powered computers. The non-volatile memory stores
the Scan Type setting.

Eye Only: In Scan mode, scans only computers that have been eyemarked.

Scan Rate

Sets the duration of a computer displayed in Auto Scan mode. The options are 3 seconds, 8
seconds, 15 seconds and 30 seconds. The Scan Rate setting is stored in non-volatile memory.

Hotkey Menu

When you hit the left <CTRL> key twice within two seconds, the Hotkey Menu appears
displaying a list of hot-key commands if the option is On. The Hotkey Menu can be turned O,
if you prefer not to see it when the left <CTRL> key is hit twice. The non-volatile memory stores
the Hotkey Menu setting.

CH Display

Auto O: After you select a computer, the channel address and name of the computer will

appear on the screen for 3 seconds then disappear automatically.

Always On: The channel address and name of a selected computer and/or OSD status displayed
on the screen all the time. The non-volatile memory stores the CH Display setting.

Position

You can choose where the selected computer name and/or OSD status is displayed on your
screen during operation. The actual display position shifts due to dierent VGA resolutions:
the higher the resolution the higher the display position. The non-volatile memory stores the
Position setting.

UL as Upper Left UR as Upper Right

LL as Lower Left LR as Lower Right

MI as Middle

ESC: To exit the OSD, press the <ESCAPE> key

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Hot Key Commands

A hot key command is a short keyboard sequence to select a computer, activate a computer
scan, etc. A hot-key sequence starts with two Left Control keystrokes followed by one or two
more keystrokes.

The short form hot-key menu can be turned on as an OSD function (<F4>: More\Hotkey Menu)
every time the left <CTRL> key is pressed twice.

Left Ctrl refers to the <CTRL> key located at the left side of the keyboard.

1~8/A~H refer to the number keys 1 to 8 at the upper row of the keyboard (Do not use the
keypad at the right of the keyboard) and character keys A to H (case insensitive).

Selecting a Computer

To select a computer by hot-key command you need to know the device’s channel
address, which is determined by the KVM connection. For a computer connected to the
switch, the address is represented by the PC port number (1~4). For example, to access
the PC plugged into port 4 of the Master KVM switch, type: left Ctrl + left Ctrl + 4.

Auto Scan

Auto Scan automatically scans through powered computers at a xed interval:

left Ctrl + left Ctrl + F1.

When Auto Scan detects any keyboard or mouse activity, it suspends the scanning until
activity stops; it then resumes with the next computer in sequence. The length of the
Auto Scan interval (Scan Rate) is adjustable (see Scan Rate on the following page). To
abort the Auto Scan mode, press the left Ctrl key twice.

Manual Scan

Manual Scan enables you to manually switch back and forth between powered
computers:

left Ctrl + left Ctrl + F2

Press the up or down arrow to select the previous or next computer in sequence. Press
any other key to abort the Manual Scan. NOTE: The Scan Type setting will determine
whether computers must be eye-marked to be included in the scan.

Scan Rate

Scan Rate sets the duration between switching to the next computer in Auto Scan mode:

left Ctrl + left Ctrl + F3

The unit switches between scan intervals of 3, 8, 15 and 30 seconds.

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Changing Your Conguration

After the initial power up, any device (either a KVM or a PC) can be added or removed from any
PC x port on the KVM without having to power down the Master KVM Switch. Make sure that
devices are turned o before connecting them to the Master KVM switch. Note: After changing
your conguration, the OSD will automatically update to reect the new conguration.

Optimizing video performance

Choose the best video mode

• We recommend using 60Hz refresh rate and 1024x768 resolution. Using a smaller resolution

like this allows you to t multiple windows on your remote desktop. Higher refresh rates
stress the video card’s quality and do not provide any additional information or benet.

Noisy video cards

• A digital KVM works by converting the analog video signals emitted by your video card into

digital data. If there is noise on that signal, then it must also be digitized and sent over the
network. Quality video cards, in our experience, oer better performance simply because
they don’t add analog noise.

• Some external KVM switches generate video noise as well. Try to keep cables short, in order

to reduce this eect.

• Enable the Noise Filter option (on the Video Tuning menu) to mitigate noise issues.

Network performance

• The SV441DUSBI will always send as much data as it can, given what’s happening on the

screen and the actual network performance. When nothing is changing on the video screen,
zero bytes are sent over the network. If the whole screen is changing, then the unit will send
as much data as your network connection and VNC client allow.

• Network latency, which is the total time it takes for a packet to get to the SV441DUSBI and

come back, has the biggest impact on perceived performance and usability. Network
bandwidth has a lesser eect, particularly when just moving the mouse around. Only a
few bytes need to be sent when the mouse is moving (and nothing else is changing on the
screen), but the round-trip-time limits the hand-eye coordination of the user if it is too great.
Both actual bandwidth and measured network latency are shown in the Main Menu.

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Using the Advanced Video Tuning Feature

The Advanced Video Tuning menu allows you to adjust the qualities of the video in your VNC
sessions, and can be accessed by clicking the Advanced button on the Video Tuning VNC menu.
While many users will probably allow the SV441DUSBI to automatically congure the video
properties, you can use this menu to exercise a great deal of control over the settings if you wish.

The Presets section contains up to sixteen dierent settings, plus the factory setting. If
a number is highlighted, then that preset has been programmed with valid settings and
may be used. Note that the Factory preset is always available. Simply click on the appro­priate button and those settings will be restored.

To save settings to a preset, click on the Save->Preset button in the Actions pane. The
preset buttons will highlight. Click the desired preset button to save the values. Note that
any previous settings assigned to that button will be lost. If you do not wish to save the
presets after clicking the Save->Preset button, click the Save->Preset button a second
time and the save function will be canceled.

The section of the screen marked Current Values indicates the various video parameters
that can be adjusted. For each parameter, there are a series of buttons: [, <<, -, Auto, +, >,
]. The ’[’ and ’]’ buttons set the parameter to its smallest or largest values, respectively. The
’<<’ and ’>>’ buttons decrease or increase the parameter by a large amount. In the case of
phase, this is 4 units. For all the others, this is 10 units. The ’-’ and ’+’ buttons decrease or
increase the parameter by one unit. The middle button sets the parameter to the middle
value. The text of the middle button also indicates which parameter is being controlled.
Note that in the case of phase, the middle button invokes the auto-phase algorithm.

The Performance section of the screen gives an indication of the quality of the video.
Changes/frame is the average number of tiles that change for each frame sampled by
the hardware. Flatness is an indication of what percentage of the screen contains tiles
that are comprised of only one color.

The Regrab Screen button in the Actions section causes the screen to be re-captured.
When making small changes to the video parameters, sometimes these changes are not
reected in the displayed screen immediately, particularly if the noise lter is enabled.
Press this button to see the immediate eect of the changes.

Use the Show Dis button to learn which parts of the screen are being sent over the
Internet. When you click this button, the screen is cleared to a medium grey color. All
blocks that are sent from that point on will show up on the screen as they are sent. Click
the button again to reset the screen to grey. To return to normal operation, click the
Regrab button. It is very easy to visually identify the eect noise has on signal processing,
using this feature.

The Auto Oset & Gain button in the Actions section invokes the automatic algorithm
for setting the video parameters. The algorithm requires the factory calibration test pat­tern to be correctly displayed on the screen.

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Using the Modem feature

Background

The modem feature allows the SV441DUSBI to act as an Internet connection server for increased
security and exibility in connecting with the host computer. Unlike the TCP/IP connection
used with the standard Web conguration and VNC clients, the modem creates a one-to-one
connection between the SV441DUSBI and the computer you are using to manage the host
computer that is essentially private, as it bypasses the public Internet completely. Note: this
feature requires both an external modem (most standard connection protocols are supported)
and a dedicated phone line that can be connected to the modem for external access. While it
is possible to use the modem feature through some PBX systems, this increases the complexity
and reduces the performance of the connection. For clarity, the instructions presented here
assume that the modem is connected to a typical POTS (plain old telephone system) line that
is not routed through a phone management system or shared with other devices. If you wish
to use this feature through a PBX system, it may require some experimentation and additional
support from your telecom services provider, and is not supported by StarTech.com.

Connecting a Modem

Modem Connection

The SV441DUSBI will work with virtually any Hayes-compatible modem that recognizes
the standard AT command set. Some modem manufacturers oer “enterprise” grade
modem products (at a premium price) that include technology to improve the stability
of connections; whether this type of product would be benecial to your application
depends on whether you consider the modem connection to be mission-critical, the qual­ity of your telecom infrastructure, and your budget for implementing this solution. The
model of modem attached is essentially transparent to the SV441DUSBI.

It is important to note that modems that oer “56K” (or 57,000 bps) connections often
achieve connection speeds that are far lower than their maximum capabilities. Given the
limitations of telecom infrastructure (many locations have yet to implement fully digital
switching technology, and still rely on older analog technology for some segments), the
maximum “upstream” transfer rate is limited to a maximum of 33,600 bps between two
modems; the “downstream” rate is often within a similar range for a typical connection.
Therefore, speeds below 57,000 bps do not indicate a problem with the modem or the
SV441DUSBI, but simply reect the line conditions at the time the connection is made.
The Serial port can be used for serial port conguration when the modem is connected. It
requires the use of a null modem serial cable.

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Place the modem near the SV441DUSBI and an available telephone jack. Connect the modem
to the telephone jack, data cable, and power source according to the instructions in its
documentation. The opposite end of the modem’s data cable should be a DB9 female serial
connection. Connect that end of the cable to the Serial connection on the rear panel of the
SV441DUSBI.

Modem conguration

Although most connections will work appropriately with the default settings on SV441DUSBI,
manual changes can be made. To do so:

Login to the Web interface as Admin. Click Modem, listed on the left side of the main page. You
will then be presented with the Modem Option menu (see above). Make the following changes
to enable and congure the modem connection.

• Enable modem connections (PPP) via serial port/modem: select Enabled.

• Baud rate to use (aects connection between us and the modem only): select 115200.

• Init string: leave as ATE0S0=1&K3 (see below).

The baud rate dictates the connection speed between the SV441DUSBI’s serial port and the
modem, and does not aect the connection speed between the local and remote modems,
as they will negotiate their own connection speed when a connection is made. It is highly
recommended that this setting be left at the default for best performance.

The initialization (“init”) string is the command (using the standardized Hayes AT command set)
that the SV441DUSBI will send to the modem to activate it. The string included should work with
the majority of modems and congures the following connection properties: answer incoming
calls on the rst ring, enable hardware ow control, and lock the connection speed. Your
modem’s documentation will describe other potential init strings that you can use to alter the
connection properties. For instance, you could commit the settings to the modem’s non-volatile
memory (NVRAM) or allow the modem to adjust the connection speed for greater stability
(and so on). You may wish to test the connection with the default init string rst, before making
changes specic to your modem model or situation, to simplify the troubleshooting process.

Click the Commit button to save your changes and activate the modem feature with the
specied settings.

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40

Conguring the Remote Connection

This section describes how to congure a typical Windows dial-up session to access the modem
connection on the SV441DUSBI. The instructions here relate to a Windows XP conguration;
other versions of Windows are similar.

1. Open My Network Places from the desktop or the Start menu.

2. Click View network connections.

3. Click Create a new connection under Network Tasks.

4. The New Connection Wizard window will open. Click Next.

5. Select Connect to the Internet and click Next.

6. Select Set up my connection manually and click Next.

7. Select Connect using a dial-up modem and click Next.

8. In the space provided under ISP Name, type an appropriate name of your choosing for the

connection. Click Next.

9. In the space provided under Phone Number enter the phone number for the line to which

the SV441DUSBI’s modem is connected. You may need to add the area code, country code, or
other digits needed to access the outside line as appropriate. When nished, click Next.

10. Make your choice from Anyone’s use or My use only and click Next.

Beside Username enter the username of any valid user created using the Web interface of
the SV441DUSBI. Beside Password and Conrm password enter the password that the user
you entered above uses to access the Web interface.

11. This screen also includes 3 checkboxes. Uncheck all 3 checkboxes.

12. Click Next.

13. You may select to add a shortcut to the desktop for this connection. Click Finish.

• PPP (Point-to-Point Protocol) must be used; no other authentication methods are supported.

• TCP/IP must be installed/enabled on the computer making the connection, and must be used

for the dial-up connection.

• The connection must be congured to obtain a dynamic IP address.

• The user name/password must match a user currently congured on the SV441DUSBI.

• For best performance and to simplify the troubleshooting process, rewall software should

not be used with the dial-up connection.

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Accessing the Web Interface

Once a dial-up connection has been established, you can access the Web interface or start a VNC
session using the following IP address:

https://99.99.99.99

You can now login to the Web interface (and/or VNC session) normally. Note that the remote
machine (the one you dialed from) is automatically assigned the IP address 99.99.99.100 for the
PPP session. This, and the IP address of the SV441DUSBI, cannot be modied. The following TCP/
IP port numbers are assigned for a PPP connection, regardless of the settings congured in the
Web interface for the LAN or WAN ports:

HT TPS: 443

VNC (clear-text): 5900

VNC (SSL secured): 15900

SSH: 22

Performance Notes

• All images over the PPP connection will be grayscale to conserve bandwidth. If other users

are connected while a PPP session is active, their screens will be in grayscale as well. When
PPP is inactive, color is automatically re-enabled.

• Some areas of the screen may not be updated as frequently as others, and animations or

other auto-updating areas of the screen may appear out-of-focus or “blocky” as a result. Since
the area around the mouse pointer is refreshed most frequently, hold the pointer over an
area to improve its clarity.

• It may be benecial to minimize any unnecessary icons, backgrounds, or other clutter on the

host computer’s desktop to make the dial-up connection as ecient as possible.

• If you need to congure the device over a serial connection while the modem option is

enabled, connect a serial cable (see immediately above for instructions on what type of
cable to use for the port you are accessing on the SV441DUSBI) and begin a terminal session
following the instructions under Terminal Conguration Using a Serial Cable in this
manual. Once connected, you will see the following message:

Expecting a modem, if human, type admin password (Or start PPP)

Type the password for user admin and press Enter. The password will not appear on the screen.
The conguration menu will appear. Make the changes you wish or press q and Enter to exit and
leave the modem connection active.

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Modem Troubleshooting Guide

The following messages will appear in the system log on the Status screen in the Web interface
and may help to diagnose problems with the modem conguration.

Starting PPP (for auth) on port…

Modem is connecting and the PPP login process is starting.

Modem hang up. Resetting

The connection has been closed or terminated unexpectedly.

Timeout during login process. Giving up

The PPP client connecting over the modem has waited too long to complete the authentication
process or supplied an invalid user name and/or password.

Modem init chat script failed

The modem did not respond to the initialization string from the SV441DUSBI. You may need to
change the init string or verify the cabling and modem status.

Modem init okay

The modem has responded appropriately to the init string.

Saw PPP startup from client

A PPP authentication has occurred and a session has started.

Phone line rings

An incoming call has been detected by the modem.

Modem answers: xxxxxxxxx

The connection speed and protocol used for a connection, as reported by the modem. The exact
contents of the message will vary depending on the modem make and model. Using Optional
Serial Remote Control (R-Port) Modules.

Serial Remote Control operation

Background

The SV441DUSBI oers a unique way to expand the functionality of the base product. Using the
integrated R-Port on the rear panel, you can manage up to 16 serial devices using a specialized
daisy-chain technology. The SV441DUSBI includes integrated control functionality that allows
you to monitor and congure serial devices using the interactive Web interface. To minimize
space and infrastructure requirements, the R-Port modules use a single cable to carry both
power and the data signal. All conguration settings are stored separately in each attached
device in non-volatile memory so that they will not be lost in the event of a power outage or
disconnection.

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Connecting Serial Remote Control Modules

The cable for each serial device is similar to a phone cable and uses an RJ-14 connector. For the
rst module, connect the cable to the R-Port on the rear panel of the SV441DUSBI. Connect the
opposite end to the DATA OUT (or similar) port on the Serial Remote Control unit. Note that
some devices may use an integrated cable, so you will not need to make a separate connection
on the serial device. Once you have added the rst serial device to the SV441DUSBI, you can
connect additional modules to the DATA IN (or similar) por t on the previous module in the
chain. Once the cabling is attached, the module becomes active after a 15 second initialization
period. For specic information regarding cabling and status indicators for a specic serial
console, refer to the instructions that came with the product.

Using the Web Interface

Once you have one or more R-Port serial devices connected, you will able to congure and
manage them through the Web interface. You may need to modify the default settings
on SV441DUSBI to match your various R-Port modules’ default conguration. Consult the
documentation that came with your R-Port module to determine if you need to modify the
default settings to complete the installation. To be able to congure your RPort modules, you
must be logged in as admin. Other users will be able to view which modules are active but
cannot congure them.

Once you are logged in, choose the Admin/Setup option from the menu at the top of the Home
screen in the Web interface. Click External Serial consoles setup and control. You will be
presented with the Serial Consoles Attached menu, and a table with the following headings:

#:You can assign a value (1 ~ 99) to each attached serial remote control module. This does not
aect the conguration or operation of the device in any way, but is simply a means to sort this
list for ease of management.

Name/Description: An identier for the R-Port module. Like the number assignment, it is for
ease of administration only.

Baud (bps): This is the communication speed for the device, and the setting here must match
the setting on the module itself. All common baud rates between 300 and 115,200bps are
supported.

Mode: Sets the character framing scheme that the SV441DUSBI will use with the R-Port module.
You can choose from the following selections:

8N1: Eight bits, no parity, one stop bit (default and most common)
7N1/701/7E1/7M1/7S1: Seven bits, (none/odd/even/mark/space) parity, one stop bit
8N1/801/8E1/8M1/8S1: Eight bits, (none/odd/even/mark/space) parity, one stop bit
8N2: Eight bits, no parity, two stop bits
Force DCD: Forces the Carrier Detect signal to be active at all times. Normally, DCD becomes

active when a new user connects and is dropped when the last user disconnects (a response
that is similar to many modems). When active, the device will logout and reset itself if the carrier
signal is lost, increasing security. Note that this may not work with all devices and could impair
proper operation in some circumstances. The default setting is o.

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44

Console Log: Clicking this link will open a separate Web page that will display the last 200
characters committed to that device’s console log. Note that existing data is overwritten
automatically when the 200 character limit is reached.

You can make as many changes as needed on this menu at one time, before applying your
changes. Once you are satised with the changes you have made, click Commit changes to
apply the new settings. Click Refresh at any time to see an updated list of attached R-Port
modules.

Advanced Conguration Using the Integrated SSH Shell

In most cases, conguring the SV441DUSBI to the same settings as the R-Port devices you
are connecting should allow the devices to work with a minimum amount of conguration.
However, you can also change the default settings on each R-Port device to t your preferences
and the needs of your application.

If you click the Connect… button next to the device you want to congure, two new windows
will appear. The smaller of the two is a login screen; the other is an SSH terminal window. Click
the login window and sign in as admin (using the same password as the Web interface) to
activate the terminal window. You will see a welcome banner similar to the following:

Baud rate: 115200 bps, 8N1

Connected to #1: (none)... (Press Ctrl-Shift-_ for menu).

You are now connected to the R-Port module in a live terminal session. Commands you type will
be echoed on the terminal screen. The module also oers a simple menu system that allows you
to change its conguration settings (similar to the function of the menus in a terminal software
package). Press [Ctrl] - [Shift] – [ _ ] (underscore) on the keyboard to access the menu. It will be
similar to the following:

RS-232 Menu (#1: (none), 115200 bps, 8N1)

Q – Disconnect

# - Send break

H – Hangup line (drop DCD)

E – Send Ctrl-Shift-_

L – Low log entries (line buer)

1 – Show last 10 log entries

other – Return to connection

Press key ->

To execute the desired command, simply press the corresponding key on the keyboard. You
can also execute the command and avoid the menu by pressing the [Ctrl] – [Shift] – [ _ ] key
combination quickly and pressing the letter of the command. To quit the menu, press [Q] on
the keyboard when the menu is active. These commands are not sent to the device you are
managing and relate to the RPORT module itself.

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45

Remote Login via SSH

You can also use a standard SSH client to access the R-Port options if you wish to avoid using
the Java-based SSH client in the Web interface. Simply use your SSH client (several freeware
packages are available for download, along with commercial applications) and connect to the IP
address of the SV441DUSBI using port 22 (default).

Log in to the SSH session as admin using the same password as the Web interface. At the
command prompt type connect x (where x is the number of the R-Port devices you wish to
manage). Alternatively, you can enter the command connect -l to see a list of active devices.

Operating Notes

• If the power supply to the R-Port modules you have connected be comes faulty (short,

overload) then the R-Port LED on the front panel of the SV441DUSBI will show red. Under
normal operations, this light should remain green. The R-Port connector on the rear panel
also has an LED that mirrors the status of the light on the front panel.

• Hardware handshaking (CTS/RTS) is required for speeds exceeding 9600 bps. It is enabled

by default on the SV441DUSBI, but may need to be enabled on the other end of the
connection. For Unix systems, the command is:
stty –cr tscts < /dev/[serial port]

• A maximum of four users may simultaneously login to the same module. All users may type

commands at any time, and all users will see the same output. Note the following:

All users have equal access to all channels.

A maximum of 16 R-Port modules may be connected at any one time.

You plug-in and unplug any R-Port module at any time. When reconnected, it will automatically
become available after a 15 second initialization period. Any log entries will be retained by the
R-Port module while deactivated, but will not be available to users until it is re-initialized.

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46

About Security Certicate Warnings

What is a security certicate?

Sites that employ secure TCP/IP (Internet) connections include a certicate that conrms that
users are connecting to a legitimate site and are not being redirected without their knowledge.
Certicates are issued by trusted third parties called Certicate Authorities (CAs) and contain
essential details about a site that must match the information supplied to your Web browser.

Why do I receive a warning when I access the login screen on the SV441DUSBI?

As it redirects you to a secure (SSL) session by default, the login screen may generate a warning
from your Web browser or the VNC Java client for two dierent reasons. First, the CA that has
issued the certicate on StarTech.com’s behalf may not yet be recognized as a trusted source
by the computer you are using to access the SV441DUSBI. Second, since the unit could be
congured in a number dierent ways, it is impossible to supply a generic certicate that will
match your exact network settings.

Is my data safe?

Yes. The security certicate does not aect encryption eectiveness in any way, nor does it make
the SV441DUSBI any more vulnerable to outside attacks.

Can I prevent the warning from occurring?

Yes. You have two options that may prevent the warning from occurring. First, if the Web browser
you are using oers the option to ignore the warning for future visits, the browser will no longer
generate a warning if that option is selected. Second, if you install the certicate from the
SV441DUSBI onto the host computer (see below) and if the unit is congured with a domain
name ending in .com, .net, .org, .gov, .edu, .us, .ca, .uk, .jp, or .tw (i.e. remotecontrol.mydomain.
net) then the warning should no longer occur.

Installing the New Certicate

The following instructions detail how to install the certicate from the SV441DUSBI onto your
local computer (in this case, when using Internet Explorer with Windows XP).

1. Open your Web browser and go to the SV441DUSBI login screen. Click the Update security

certicate link.

2. When prompted, choose Open.

3. A Window will appear that oers information about the certicate. Click Install Certicate.

4. The Certicate Import Wizard will appear. Select Automatically select the certicate

store… (default) and click Next. When the next window appears, click Finish.

5. A conrmation dialog will appear asking you if you wish to install the certicate. Click Yes.

6. A message should appear saying the import was successful. Click OK.

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47

Troubleshooting

Forgotten master password.

You can reset the master password using the serial interface on the unit. Use the S command,
and type a new password. The old password is not required for this procedure.

Remote mouse and local mouse don’t line up.

Use the Mouse resync command in the main menu or press the Resync button on the Bribar. If
the mouse pointers still don’t line up, verify that mouse acceleration has been disabled.

NOTE: The Windows login screen does not accept the “mouse acceleration” conguration, and
always has the mouse accelerated regardless of your conguration. Therefore, on this screen it is
best to avoid using the mouse.

After resync, the mouse pointers are still not aligned.

Use the video adjust menu to position your video image exactly where it should be. Normally
a slight video positioning error is perceived as a mouse sync issue. A video positioning error is
visible as a black line along the top or bottom (and right or left) edges of the remote screen.
Remember to save your position changes!

Cannot login via SSH.

Remember to use either admin or a username created in the system as the user name you give
your SSH client.

If you see a warning about identity of host cannot be veried, and a question about saving the
host’s ngerprint, this is normal for the rst time you connect to any machine running SSH. You
should answer yes so that your SSH client saves the public key of this host and doesn’t re-issue
this warning.

Certicate warning shown when connecting via HTTPS.

It is normal for a warning dialog to be shown when connecting via HTTPS. The SSL certicate S
uses is created when the unit is rst produced. It does not contain the correct hostname (subject
name) because you can change the hostname as required. Also, it is not signed by a recognized
certicate authority (CA) but is signed by our own signing authority.

Mouse performance is erratic when using the GNOME or KDE desktop in a Linux X-Window
environment.

The mouse controls in GNOME and KDE environments oer both an acceleration and sensitivity
setting. The following directions correct this issue, and apply to Red Hat Fedora Core 2, but
should be similar for other distributions that use GNOME or KDE:

1. Click the Launch menu icon.

2. Choose Preferences > Mouse.

3. Click the Motion tab.

4. Set the Acceleration bar to the setting immediately left of center.

5. Set the Sensitivity bar to the left-most settings (lowest possible).

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48

Specications

General Specications

Maximum Supported
Video Mode

Standard Video Modes
Supported

Maximum Power
Consumption

Input Connectors

Regulatory Certications FCC Class A, CE, ROHS, VCCI

Source code for the unit operating system is available upon request. Please contact us by
phone, live chat, or email to make your request. This oer is valid for three years from the date of
purchase and/or for as long as parts or customer support is oered for this product. Charges for
the reasonable cost of copying and/or conveying may apply.

1600 x 1200 @ 85Hz

640x400 @ 85Hz
720x400 @ 85Hz
640x480 @ 60Hz, 72Hz, 75Hz, 85Hz
800x600 @ 56Hz, 60Hz, 72Hz, 75Hz, 85Hz
1024x768 @ 60Hz, 70Hz, 75Hz, 85Hz
1152x864 @ 75Hz
1280x960 @ 60Hz, 85Hz
1280x1024 @ 60Hz, 75Hz, 85Hz
1600x1200 @ 60Hz, 65Hz, 70Hz, 75Hz, 85Hz

18 Watts (12VDS, 1.5A) Centre Positive

Video In
USB Keyboard
USB Mouse
LAN (RJ45)
R-Port (RJ14)
DB9 RS-232 Male
DC IN

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49

Supported Protocols

Service Description Benet

SSH Secure Shell

HTTP

SNMP

Web Redirector
(to HTTPS)

SNMP Agent
(UDP)

SSLTLS

HTTPS

Encrypted Web
Control

VNC

VNCS

DHCP

RADIUS

VNC/RFB
Protocol Server

SSL-tunneled
VNC

Dynamic IP
Setup Cong

Centralized
authentication

System event

SYSLOG

logging to
another system

DNS

Domain Name
Service

May be used to securely “tunnel” VNC and
HTTP protocols.

Convenience server to redirect all web trac
to encrypted port. Clear-text HTTP is not
supported.

Allows integration with existing SNMP
network management systems.

Secure control and management of the device
and attached system. Screen snapshots may
be downloaded. Integrated Java VNC client
(with or without encryption) allows control
from any Java enabled browser. Password
protected.

Standardized real-time KVM network protocol.
Compatible with existing VNC client software.

VNC protocol tunneled via SSLTLS encryption.
For secure real-time control of the server over
public networks.

Eases network setup by fetching IP address
and other network settings from a centralized
server.

Allows integration with existing RADIUS
servers, so that user management can be
centralized. Supports challenge response
authentication using hardware tokens (like
SecurID) and conventional passwords.

MIT-LCS UDP protocol. Must be congured via
DHCP option.

Converts text name into IP Address Only used
in the URL specication needed to emulate a
CDROM. Use is optional.

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50

Technical Support

StarTech.com’s lifetime technical support is an integral part of our commit-ment to provide
industry-leading solutions. If you ever need help with your product, visit www.startech.com/
support and access our comprehensive selection of online tools, documentation,
and downloads.

Warranty Information

This product is backed by a three year warranty.

In addition, StarTech.com warrants its products against defects in materials and workmanship for
the periods noted, following the initial date of purchase. During this period, the products may
be returned for repair, or replacement with equivalent products at our discretion. The warranty
covers parts and labor costs only. StarTech.com does not warrant its products from defects or
damages arising from misuse, abuse, alteration, or normal wear and tear.

Limitation of Liability

In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their ocers,
directors, employees or agents) for any damages (whether direct or indirect, special, punitive,
incidental, consequential, or otherwise), loss of prots, loss of business, or any pecuniary loss,
arising out of or related to the use of the product exceed the actual price paid for the product.
Some states do not allow the exclusion or limitation of incidental or consequential damages. If
such laws apply, the limitations or exclusions contained in this statement may not apply to you.

Instruction Manual

51

Hard-to-nd made easy. At StarTech.com, that isn’t a slogan. It’s a promise.

StarTech.com is your one-stop source for every connectivity part you need. From
the latest technology to legacy products — and all the parts that bridge the old
and new — we can help you nd the parts that connect your solutions.

We make it easy to locate the parts, and we quickly deliver them wherever they
need to go. Just talk to one of our tech advisors or visit our website. You’ll be
connected to the products you need in no time.

Visit www.startech.com for complete information on all StarTech.com products
and to access exclusive resources and time-saving tools.

StarTech.com is an ISO 9001 Registered manufacturer of connectivity and technology
parts. StarTech.com was founded in 1985 and has operations in the United States,
Canada, the United Kingdom and Taiwan servicing a worldwide market.