CPU IP Access Switch Plus
User Guide
IP
Access Switch Plus
LOC REM VNC 100 LNK PWR
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Introduction
Four simultaneous remote users
Thank you for choosing the CPU
IP Access Switch Plus from LINDY.
This intelligent product delivers
CPU IP can support four remote users at any
one time. All of these may be connected via
the IP network port or one may be linked via
the modem/ISDN channel.
straightforward setup, secure operation
and the ability to fully control one or
more computers from almost anywhere.
Local user
The console port allows
control of the system(s) by
a keyboard, video monitor
and mouse connected
directly to the CPU IP.
Remote control via a network
connection is nothing new and
Modem/ISDN port
This port offers a
Modem or ISDN
connection option that
can be used alongside,
or instead of, the IP
network link. It also
offers a backup route
should the network fail.
software-only solutions to facilitate this
are commonplace. However, they all
present two major drawbacks: a) Special
software must be used on all of the
computers involved, especially the host,
and b) if that host ceases to operate, the
remote user is powerless to intervene.
Modem or ISDN
IP network/
Internet
The CPU IP is different and requires
only the remote system(s) to run a small
utility. The host system can run its usual
operating system completely unchanged
and needs only to be connected (via its
keyboard, video and mouse ports) to the
compact CPU IP box.
IP
Access Switch Plus
LOC REM VNC 100 LNK PWR
IP network/Internet
The IP port allows direct
connection to an Ethernet-based
local network and from there
onto the wider Internet, as
required.
Main KVM connection
Power switch
Alternatively, the robust CPU IP
security system will allow direct
connection to the outside world.
It is this external connection to the
CPU IP that keeps the remote user in
control. Even in the midst of a system
crash, the remote user can still view the
host’s condition as if sitting next to it.
Additionally, when the power switch
option is employed, a host system can be
remotely rebooted, no matter how badly
it has locked-up.
OR
Optional power control
CPU IP provides the
KVM switch
opportunity to attach one
or more power switches.
These control the supply
to the host system(s) and
allow the remote user to
hard reset any system that
has suffered a failure.
One host or many
The CPU IP really starts to excel when
it is hooked to a suitable KVM switch.
Then its robust, secure and adaptable
operation is available across a multitude
of systems.
On its own, the CPU IP provides remote access
to one host computer system. However, when
linked to a suitable KVM switch, the remote
user(s) can easily control a multitude of systems.
Note: Throughout this manual the LINDY
CPU IP Access Switch Plus is referred to
simply as the CPU IP.
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CPU IP Access Switch Plus features - front and rear
Considering its capabilities, the CPU IP is supplied within a remarkably compact
casing. Measuring just 198mm x 120mm x 43mm, it occupies just half of a
single (1U) rack space and provides most of its connectors at the rear face. The
smart front face features the IP network port and the operation indicators.
Power control port
Optionally use this port
to control one or more
power switches. These
allow the remote user to
take full control of the
host system(s).
Modem port
Optionally use this port to
attach either a standard
modem or an ISDN adapter.
This feature provides an
alternative, direct-dial, remote
link into the CPU IP.
IP network port
Power input
Connect
the supplied
power
This intelligent Ethernet
port can automatically
sense whether it is
attached to a 10Mb or
100Mb network.
adapter here.
COM2
POWER
CONTROL
COM1
MODEM
INDOOR USE ONLY
IP
5V
Access Switch Plus
LOC REM VNC 100 LNK PWR
1
ON
2
2A
Indicators
Configuration
switches
Used for flash
upgrades and
total reset
functions. They
are not required
under normal
circumstances.
KVM console
Computer/KVM Switch
These six indicators clearly show the key aspects of operation:
Connect a keyboard, video
monitor and a mouse to these
three connectors. These allow
you to perform the initial
configuration of the CPU IP.
Additionally, you can use these
to locally control the connected
computer(s).
Link these connectors to the
keyboard, video and mouse ports of
the device to be remotely controlled,
either a single computer or a KVM
switch. The USB port on the right
is for future expansion and is not
currently used.
• LOC Keyboard or mouse data is being received from the local console.
• REM Keyboard or mouse data is being received from a remote viewer.
• VNC Indicates that a remote viewer is connected and active.
• 100 Indicates the Ethernet network speed (10/100Mbs).
• LNK Network link and activity indication.
• PWR Power indicator.
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What’s in the box
What you may additionally need
Double unit rack brackets
Includes twelve screws
Part number: 39404
CPU IP Access
Switch Plus
A
ccess Switch Plus
IP
L
O
C
R
E
M
V
N
C
1
0
0
L
N
K
P
W
R
Single unit rack brackets
Includes four screws
Part number: 39403
CD-ROM
KVM cables
One set per connected computer
Part numbers: 33711 - 33718
(cable lengths available:
1, 2, 3, 5, 10, 15 or 20 metres)
Power supply
and country-
specific power
lead
Four Self-adhesive
rubber feet
Multi-platform KVM converter cable
Required to connect with computers that
use a USB port to connect their keyboard
and mouse
Part number: 42867
PS/2 to AT-style keyboard converter
KVM cable set
(part number: 70130)
PS/2 to 9-pin serial mouse converter
(part number: 70058)
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Installation
Mounting
The CPU IP offers three main mounting methods:
• Supplied four self-adhesive rubber feet
• Optional single unit rack brackets
• Optional double unit rack brackets
Single unit rack brackets
These two brackets (plus four screws), extend the
size of the CPU IP so that it fills the full width
of a 1U rack slot.
5V
COM2
POWER
1
CONTRO
2.5A
ON
2
L
INDOOR
USE
ONL
Y
KVM
CONSOLE
COM1
MODEM
COMPUTER
/
KVM
SWITCH
5V
COM2
POWE
1
CONTROL
2.5A
O
2
N
R
INDOOR
USE
ONL
Y
KVM
CONSOLE
COM1
MODEM
COMPUTER
Double unit rack brackets
/
KVM
SWITCH
This kit comprises four brackets (plus twelve
screws) and allows two CPU IP units
to be connected side by side and
fitted into a 1U rack slot.
5V
COM2
POWE
CONTROL
R
1
COM1
2.5A
ON
2
MODEM
INDOOR
USE
ONL
Y
KVM
CONSOLE
5V
COM1
COM2
MODE
M
POWER
1
CONTRO
2.5A
ON
2
COMPUTER
L
/
KVM
INDOOR
SWITCH
USE
ON
L
Y
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Host computer or KVM switch
Connections
The CPU IP can either connect directly to a single host computer or to range of
hosts via one or more KVM switches.
Installation of the CPU IP involves a number of basic connections
to some or all of the following items:
To connect a host computer or KVM switch
1 Ensure that power is disconnected from the CPU IP and the computer or
KVM switch to be connected.
• Host computer or KVM switch
ð
(Note: If it is not possible to switch off devices prior to connection, then
a ‘Hot plug’ procedure is available – see the Hot plugging and mouse
restoration section for more details).
2 Connect the plugs at one end of a KVM cable set to the keyboard, video
and mouse sockets of the computer or KVM switch (for mouse plug
Monitor (video)
Keyboard
Blue
Purple
Mouse
or
Mid green
3 Connect the plugs at the other end of the KVM cable set to the corresponding
sockets, collectively labelled as ‘COMPUTER/KVM SWITCH’, at the rear of the
CPU IP.
INDOOR
USE
ONL
Y
KVM
CONSOLE
COM1
MODE
M
COMPUTER
/
KVM
SWITCH
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Local keyboard, video monitor and mouse
IP network port
A locally connected keyboard, video monitor and mouse are required during the
initial configuration. These are also useful during normal use to allow quick local
control of any connected host computers.
The CPU IP provides an autosensing Ethernet IP port that can operate at 10 or
100Mbps, according to the network speed. The CPU IP is designed to reside
quite easily at any part of your network:
• It can be placed within the local network, behind any firewall/router
connections to the Internet, or
To connect a local keyboard, video monitor and mouse
1 Position a suitable keyboard, video monitor and mouse in the vicinity of the
CPU IP such that their cables will easily reach.
• It can be placed externally to the local network, on a separate sub-network
or with an open Internet connection.
2 Connect the keyboard, video monitor and mouse plugs to the sockets,
collectively labelled as ‘KVM CONSOLE’, at the rear of the CPU IP.
Wherever in the network the CPU IP is situated, you will need to determine
certain configuration issues such as address allocation and/or firewall adjustment
Configuration chapter for more details.
IMPORTANT: When the CPU IP is accessible from the public Internet or dial up
5V
To connect the IP network port
1 Depending upon where in the network the CPU IP is being connected, run a
category 5e or 6 cable from the appropriate hub or router to the CPU IP.
COM2
POWER
1
CONTROL
ON
2
2A
INDOOR
2 Connect the plug of the category 5e or 6 cable into the IP port on the front
panel of the CPU IP.
USE
ONL
Y
KVM
CONSOLE
L
O
C
R
E
M
V
N
C
1
0
0
L
N
From mouse
From keyboard
K
P
W
R
From video monitor
3 Configure the network settings as appropriate to the position of the CPU IP
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Modem/ISDN port
Power supply connection
The CPU IP provides a serial port specifically for you to connect either a modem
or ISDN terminal adapter. This can be used as a primary, secondary or backup
access port for remote systems, as best suits your overall configuration.
The CPU IP is supplied with a single power supply and an appropriate country-
specific IEC power lead. There is no on/off switch so operation begins as soon as
the power supply is connected.
IMPORTANT: When the CPU IP is accessible from the public Internet or dial up
To connect the power supply
1 Connect the low voltage output connector from the power supply unit to
the power socket on the rear panel of the CPU IP.
To connect a modem or ISDN port
1 If possible, disconnect power from the CPU IP and the modem or ISDN
adapter.
2 Connect a suitable serial modem (non-crossover) cable to the serial port on
the modem/ISDN adapter.
3 Connect the other end of the serial cable to the port labelled COM1 at the
rear of the CPU IP.
5V
COM2
USE
ONL
POWER
1
CONTROL
ON
2
2A
Y
KVM
CONSOLE
INDOO
KVM
COM1
CONSOLE
MODE
M
COMPUTER
/
KVM
SWITCH
2 Connect the IEC connector of the supplied country-specific power lead to
the socket of the power supply.
3 Connect the power lead to a nearby main supply socket.
Note: The default serial port speed is 115200K and a standard Hayes-compatible
auto-answer string is sent during startup. The default startup string is
‘ATZHS0=1’. Both the serial port speed and startup string settings can easily be
more details. The other serial settings are fixed at: No parity, 8 bit word and 1
stop bit.
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To connect and address the switch boxes
Note: The CPU IP can be powered on during this procedure, however, the switch
boxes should be switched off.
Power control port
The CPU IP provides a serial port for connection to one or more optional power
control units. This allows you to control the mains power being supplied to the
connected host(s) so that an authorised remote user can, if necessary, perform a
complete cold reboot on a failed host system.
1 Mount up to four switch boxes in positions where they are close to the
computers that they will control and not too distant from the CPU IP
(preferably within 2.5 metres).
The control connector of the first power switch is connected, via serial cable, to
the rear panel of the CPU IP. Any additional power switches are then connected
via a ‘daisy-chain’ arrangement to the first power switch. Each power switch box
is then given a unique address and access to each power port (4 or 8 ports on
each power switch box) is gained using a combination of the switch box address
and the port number.
7 for specification). Connect the RJ10 plug to the socket marked ‘IN’ on the
first switch box. Connect the other end to the socket marked ‘COM2’ on
the CPU IP.
‘Daisy-chain’
control
connections
Power
switch
boxes
IP
Access Switch Plus
LOC REM VNC 100 LNK PWR
5V
COM2
POWER
1
CONTROL
2.5A
ON
2
IN
Box 1
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
6
6
6
6
7
7
7
7
8
8
8
8
OUT
IN
KVM
CONSOLE
IN
Box 2
Box 3
Box 4
5
5
5
OUT
Power to computer
Box 2, port 6 - address: 26
3 For each of the remaining switch boxes (if used), use a serial cable with RJ10
end to the socket marked ‘OUT’ of the previous box and the other end to
the socket marked ‘IN’ of the next box.
IN
OUT
4 Set the addressing switches on each switch box using the micro switches
according to the switch box manual.
IN
5 Connect IEC to IEC power leads between each port and the power input
socket of each computer that requires power switching. Carefully note to
which power ports, on which boxes, each computer is connected. If server
systems have multiple power inputs, then each input must be connected via
separate ports, which can be on the same, or different boxes.
The power ports are connected to the power inputs of each computer and the
power switch box(es) are then connected to a mains power supply.
IMPORTANT: Power switching devices have a maximum current rating. It is
essential to ensure that the total current drawn by the equipment connected
to the power switching device does not exceed the current rating of the power
switching device. You must also ensure that the current drawn from any mains
socket does not exceed the current rating of the mains socket.
6 Connect each box to a suitable mains power input.
Now proceed to the configuration stage covered in the Power switching
Setting up, configuring and using power switching requires three main steps:
• Connect and address the switch boxes
ð
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Configuration
Initial configuration
The initial configuration occurs as two distinct parts:
Part 2 – Remote configuration
Part 1 – Local configuration
This part of the configuration takes place using a remote connection
(network or dial-up modem/ISDN). It allows fine tuning of the part 1
configuration items plus the creation of multiple user accounts and
This part of the configuration takes place using the locally
connected keyboard and video monitor. It allows you to set up
key basic details, network essentials, modem/ISDN parameters
and security key creation.
Part 1 – Local configuration
When you switch on the CPU IP unit for the first time it will take
you (using the locally connected keyboard and video monitor)
through a set up sequence consisting of four main screens:
IP Access Switch
+
Unit Config
Modem Config
Network Config
Hardware
Firmware
Rev
Version 1.4
1
Secure Keys
Server IP
Client IP
Baud Rate
Init String
192.168.3.1
192.168.3.2
115200
MAC Address 00:0F:58:00:00:04
Keybd Layout UK
Admin Passwd
Unit Name
Use DHCP
IP Address
Net Mask
Gateway
No
Random data is required to
generate encryption keys
for secure VNC access
Please move the mouse or
press keys until the bar
becomes full
192.168.42.154
255.255.255.0
ATZHS0=1
Hot Keys
Screensaver
Time
Ctrl+Alt
10 mins
21
15
>
VNC Port
HTTP Port
5900
80
>
>
:
27
Apr
:
31
2004
Initialize Port
Restore Defaults
Date
Encryption
Prefer Off
Save
Save
Save
Requires you to configure the
various key aspects of the IP
network port addressing.
Allows you to optionally alter the
current settings for the serial port that
is used to connect a modem or ISDN
terminal adapter. The IP addresses are
used to emulate a two-port network
connection and are suitable for most
situations.
Allows you to determine a mixture
of basic and fundamental setup
details such as the keyboard layout,
admin password, time and date.
This screen uses your mouse
movements or keyboard inputs
to create random data. This
unpredictable information is then
combined with several other
factors to develop the basis of the
encryption keys that are used to
establish secure remote links.
Problems?
Controlling the local configuration menus
The local menus use only the keyboard. Use the
keyboard arrow keys to move the green highlight
indicator to the required position. Then, either type the
required information or use the left and right arrows to
change multiple choice items, as appropriate.
continued
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To perform the initial local configuration
1 Edit the Unit config screen. The key elements here are:
3 If necessary, edit the Modem config screen.
IP Access Switch + Unit Config
Admin password
Modem Config
Enter a password of at least
six characters that has a mix
of letters and numerals. The
background colour provides
an indication of password
suitability and is initially red
to indicate that the password
is not sufficient. When a
password with reasonable
strength has been entered it
changes to blue.
The default items here are
perfectly adequate for the
majority of modem and ISDN
terminal adapter installations.
Hardware
Firmware
Keybd Layout UK
Admin Passwd
Unit Name
Hot Keys
Screensaver
Time
Rev 1
Version 1.4
Server IP
Client IP
Baud Rate
Init String
192.168.3.1
192.168.3.2
115200
The Server IP and Client IP
addresses are used to form
an isolated two-device PPP
network connection via the
dial up link. Their settings are
not related to any other ‘real’
network settings within the
CPU IP.
ATZHS0=1
Ctrl+Alt
10 mins
21 : 27 : 31
15
Initialize Port
Restore Defaults
Date
Encryption
Apr
2004
Prefer Off
Time and Date
Save
Set these correctly as all entries
in the activity log are time
stamped using them.
Save
When all items are correct, select the Save option to display the next screen.
4 Move the mouse and enter changing key sequences within this screen.
Encryption
Arrange this setting according
to your security requirements.
a description of the issues and
the settings.
When all items are correct, select the Save option to display the next screen.
Secure Keys
Random data is required to
generate encryption keys
for secure VNC access
Please move the mouse or
press keys until the bar
becomes full
2 Edit the Network config screen. The key elements here are:
Use DHCP/IP address/Net
Mask/Gateway
You need to either set the
DHCP option to ‘Yes’ or
Network Config
MAC Address 00:0F:58:00:00:04
manually enter a valid IP
Use DHCP
IP Address
Net Mask
Gateway
No
address, Net mask and
issues for more details.
192.168.42.154
255.255.255.0
VNC and HTTP ports
With every mouse move and keypress, the single dash will move across the
screen (unless the same key is pressed repeatedly). Periodically, a new star
character will be added to the bar as the random data is accepted as part of
the new encryption key. When the bar is full, the final encryption keys for
your CPU IP will be created – this process takes roughly 30 to 40 seconds.
VNC Port
HTTP Port
5900
80
These should remain set to
5900 and 80, respectively,
unless they clash with an
existing setup within the
network. See Networking
issues for more details.
Save
continued
When all items are correct, select the Save option to display the next screen.
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5 Once the secure keys have been calculated the CPU IP will restart and
present a standard logon screen.
Encryption settings
The CPU IP offers a great deal of flexibility in its configuration and this extends
equally to its encryption settings. Due to the variety of situations in which it
might be used and the range of viewer applications that need to view it, a
number of settings are available that might not make perfect sense at first
glance. However, these settings should allow you to configure the CPU IP and
the viewers to operate as required.
IP Access Switch Plus Logon
At this stage the username will
Factors to consider when setting these options might be:
• Do all of the connections and operations require encryption?
• Will some users be using older VNC viewer versions?
be ‘admin’ and the password
will be whatever you entered
in the first setup screen.
Username:
Password:
CPU IP encryption settings
The CPU IP configuration page offers three encryption settings:
• Always on - This setting will force all viewers to use encryption. Note:
This setting will preclude any VNC viewer versions that do not support
encryption.
Once the username and password have been accepted, the screen should
now show the host computer screen (or, if none is connected, a blank image).
• Prefer off - This setting does not enforce encryption unless a viewer
specifically requests it. If a viewer has its ‘Let server choose’ setting, then an
un-encrypted link will be set up.
6 To view the options menu: Press
(if the standard hotkeys were altered, use the new hotkeys plus C)
• Prefer on - This setting generally enforces encryption unless an earlier
viewer version is unable to support it, in which case the link will be un-
encrypted. If a viewer has its ‘Let server choose’ setting, then the link will be
encrypted.
Logoff
Select to close your current
session and display the
screensaver.
IP Access Switch Plus Control
Restore mouse functions
Select to revive a mouse
that has ceased to function
correctly. See Hot plugging
details.
Viewer encryption settings
The web browser viewers and VNC viewers (of level 4.0b5S or higher) offer four
encryption settings:
Logoff
Restore Mouse Functions
Configuration
• Always on - This setting will ensure that the link is encrypted, regardless of
Access Mode Shared
the CPU IP encryption setting.
Configuration
Host
Email server
Select to gain access to the
Unit, Network and Modem
configuration screens. Within
here you can also reset the
CPU IP to its initial state.
• Let server choose - This setting will follow the configuration of the CPU
IP. If the CPU IP has ‘Always on’ or ‘Prefer on’ set, then the link will be
encrypted. If the ‘Prefer off’ setting is selected at the CPU IP, then the link
will not be encrypted.
Return To Host
Access mode
Host
• Prefer off - This setting will configure an un-encrypted link if the CPU IP will
Allows you to choose between Indicates the currently selected
allow it, otherwise it will be encrypted.
Shared mode (where all other
logged on users can see your
operations) and Private mode
(where the screens of all other
users are blanked).
host computer and allows you
to select others. This item will
be blank unless host details
have been set within the
• Prefer on - If the CPU IP allows it, this setting will configure an encrypted
link, otherwise it will be un-encrypted.
Return to host
Quits the menu and returns to
the host screen.
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Hot plugging and mouse restoration
It is strongly recommended that you switch off a host computer before
attempting to connect it to the CPU IP. However, if this is not possible then you
need to ‘hot plug’ the computer while it is still running. There is not normally
a danger of damage to the computer, however, when mouse communications
are interrupted, often they fail to re-initialise when reconnected. The CPU IP
provides a feature to reinstate mouse communications once the necessary
connections have been made.
To restore mouse operation when hot plugging:
1 Using a KVM cable set, carefully make the keyboard, monitor and mouse
connections between the host computer and the ports collectively labelled
COMPUTER/KVM SWITCH on the CPU IP.
2 Using a keyboard and monitor directly connected to the CPU IP, log on and
then press
to view the options menu. More about hotkeys
3 Select the ‘Restore mouse functions’ option to display:
There are two main types of data formats used by current PC mice, these are the
older ‘PS/2’ format and the more recent ‘IntelliMouse®’ format introduced by
Microsoft. These use slightly different data arrangements and it is important to
know which type was being used before you hot-plugged the computer to the
CPU IP. The previous setting depends both on the type of mouse and the type
of driver, as various combinations of PS/2 and IntelliMouse are possible. Using
the incorrect restore function may produce unpredictable results and require the
computer to be re-booted.
Restore Mouse
Restore PS/2 Mouse
Restore IntelliMouse
Back
Which restore setting do I use?
The general rule is that unless both the mouse and the driver are both
IntelliMouse compatible then you need to restore the mouse as ‘PS/2’. An
IntelliMouse can operate in either mode, whereas a PS/2 mouse cannot.
Recognising an IntelliMouse-style mouse
4 Select one of the following options:
The IntelliMouse format was introduced to support, among other features, the
scroll wheel function. If the mouse has a scroll wheel, then it is likely to support
the IntelliMouse format. If it is a Microsoft-branded mouse, then it will usually
state that it is an IntelliMouse on its underside label.
• Restore Standard Mouse – if PS/2 mode is required, or
• Restore IntelliMouse – if IntelliMouse mode is required.
5 Select the ‘Return to host’ option.
6 Move the mouse a short distance and check for appropriate on-screen
cursor movement. If the mouse cursor darts erratically around the screen,
then cease moving the mouse. This is an indication that the chosen restore
function is incorrect. Try again using the other restore function.
Recognising an IntelliMouse driver
Before hot plugging to the CPU IP (or afterwards using only keyboard control),
access the Windows Control Panel of the computer and select either the Mouse
option (on Windows NT, 2000 and XP) or the System option (on Windows 95,
98, ME). Look for the name of the driver, which will usually include the words
PS/2 or IntelliMouse.
Note: The restore functions predict the likely mouse resolution settings but
may not restore the exact speed or sensitivity settings that were originally
set.
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Resetting the configuration
The CPU IP asks for an unknown admin password
This may occur if the CPU IP has been previously configured. If the existing
admin password cannot be discovered, then your only recourse is to perform a
factory reset.
The CPU IP does not display the configuration sequence
If the CPU IP has been previously configured it may not automatically display the
first of the setup screens. In this case you have two options, either:
To invoke a configuration reset by switch
• Reset the configuration:
1 Remove power from the CPU IP unit.
To invoke a configuration reset by main menu
1 Using the locally connected keyboard and screen, log on as the admin user.
2 At the rear of the CPU IP, adjacent to the power input socket, click mini
switch 1 to its ON (down) position.
2 Select the ‘Configuration’ option.
3 Re-apply power to the CPU IP. On the locally connected monitor you should
see a Maintenance menu:
Configuration
Maintenance
Unit Configuration
Network Configuration
Modem Configuration
To upgrade unit, visit:
Configure Network
Reset Configuration
Reset Configuration
Back
Put option switch 1 up to
return to normal operation.
3 Highlight the ‘Reset configuration’ option and press
.
A warning screen will be displayed, select the RESET option and press
.
4 Select the ‘Reset configuration’ option.
A warning screen will be displayed. Select the RESET option and press
.
Reset Config
Reset Config
WARNING: Continuing will cause
your existing configuration to
be erased.
WARNING: Continuing will cause
your existing configuration to
be erased.
The unit will then reset and
require re-configuring before
it can be used.
The unit will then reset and
require re-configuring before
it can be used.
DO YOU WISH TO CONTINUE?
DO YOU WISH TO CONTINUE?
RESET
Cancel
RESET
Cancel
5 Remove power, return the mini switch 1 to its OFF position and then re-
apply power. The locally connected monitor should display the first screen of
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Part 2 – Remote configuration
To perform the remote configuration
1 Use either the VNC viewer or a standard web browser to make remote
The second part of the configuration requires you to log into the CPU IP from a
system via either a network connection or a dial-up connection (via modem or
ISDN). In either case there are two types of access applications that you can use:
2 If the username entry is not blanked out, enter ‘admin’. Then enter the
password that was set during the local configuration stage (if no password
• The VNC viewer – a small application supplied on the CD-ROM or
downloadable from the RealVNC website or even downloadable from the
CPU IP itself.
was set, then just press
). Once logged in, the CPU IP will show the video
output from the host system (if one is connected), or otherwise a ‘No Signal’
message.
or
• A standard browser that supports Java – As soon as a web browser makes
contact, the CPU IP downloads a Java application to it. This allows a viewer
window to be opened and operation to commence just as it would with the
VNC viewer application.
3 Click the Configure button in the top right hand corner of the window to
display the configuration menu
ò
Allows you to create and manage up to sixteen separate user
accounts, each with separate access permissions.
Allows you to alter both basic and fundamental
settings within the CPU IP.
Here you can alter any of the existing network settings plus
you can take advantage of the IP access control feature that
lets you to specifically include or exclude certain addresses or
networks.
Lets you setup or alter the details concerning
the modem and power control serial ports.
Allows you to configure user access, hot key switching and
power control codes for up to 32 host systems that may be
connected to the CPU IP via KVM switch units.
Shaded items signify
options that are not
available at the local
configuration stage.
Provides various details about the user
activity on the CPU IP.
Many of the options within the configuration menu duplicate those
that were set (or are available) in the local configuration. However,
there are numerous other settings that are only available here.
For more information about each menu option, please see Appendix 5
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Placing CPU IP behind a router or firewall
Networking issues
A possible point of contention between the CPU IP and a firewall can occasionally
arise over the use of IP ports. Every port through the firewall represents a potential
point of attack from outside and so it is advisable to minimise the number of open
ports. The CPU IP usually uses two separate port numbers, however, these are easily
changeable and can even be combined into a single port.
Thanks to its robust security the CPU IP offers you great flexibility in how it
integrates into an existing network structure. The CPU IP is designed to reside
either on an internal network, behind a firewall/router or alternatively with its
own direct Internet connection.
IMPORTANT: The correct configuration of routers and firewalls requires advanced
networking skills and intimate knowledge of the particular network. LINDY cannot
provide specific advice on how to configure your network devices and strongly
recommend that such tasks are carried out by a qualified professional.
Positioning CPU IP in the network
Every network setup is different and great care needs to be taken when
introducing a powerful device such as the CPU IP into an existing configuration.
A common cause of potential problems can be in clashes with firewall
configurations. For this reason the CPU IP is designed to be intelligent, flexible
and secure. With the minimum of effort the CPU IP can reside either behind the
firewall or alongside with its own separate Internet connection.
Port settings
• Port 80 for users making contact with a web browser, and
• Port 5900 for those using the VNC viewer.
When these port numbers are used, VNC viewers and web browsers will locate
the CPU IP correctly using only its network address. The firewall/router must be
informed to transfer traffic, requesting these port numbers, through to the CPU
IP.
Internet
Internet
When a web server is also on the local network
Firewall/
router
Port 80 is the standard port used by web (HTTP) servers. If the CPU IP is situated within
a local network that also includes a web server or any other device serving port 80
then, if you want to use the web browser interface from outside the local network
environment, the HTTP port number of the CPU IP must be changed.
Firewall/
router
IP
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When you change the HTTP port to anything other than 80, then each remote
browser user will need to specify the port address as well as the IP address. For
instance, if you set the HTTP port to ‘8000’ and the IP address is ‘192.168.47.10’
then browser users will need to enter:
IP
Access Switch Plus
LOC REM VNC 100 LNK PWR
Local
network
connection
KVM link to
host system
(Note the single colon that separates the IP address and the port number).
KVM link to
host system
Local
network
connection
The firewall/router would also need to be informed to transfer all traffic to the
new port number through to the CPU IP.
If you need to change the VNC port number
CPU IP situated behind
the firewall
CPU IP situated alongside
the firewall
If you change the VNC port to anything other than 5900, then each VNC viewer
user will need to specify the port address as well as the IP address. For instance,
if you set the VNC port to ‘11590’ and the IP address is ‘192.168.47.10’ then
VNC viewer users will need to enter:
IMPORTANT: When the CPU IP is accessible from the public Internet or dial up
192.168.47.10::11590
(Note the double colons that separate the IP address and port number).
The firewall/router would also need to be informed to transfer all traffic to the
new port number through to the CPU IP.
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Addressing
To discover a DHCP-allocated IP address
When the CPU IP is situated within the local network, you will need to give it an
appropriate local IP address and IP network mask. This is achieved most easily
using the DHCP server option which will apply these details automatically. If
a DHCP server is not available on the network, then these details need to be
applied manually in accordance with the network administrator.
Once a DHCP server has allocated an IP address, you will need to know it in
order to access the CPU IP via a network connection. To discover the allocated IP
address:
DHCP’ option to ‘Yes’ and select ‘Save’. Once the page is saved, the CPU IP
will contact the DHCP server and obtain a new address.
The firewall/router must then be informed to route incoming requests to port
5900 or port 80 (if available) through to the local address being used by the CPU
IP.
2 Re-enter the same ‘Network configuration’ screen where the new IP address
and network mask should be displayed.
DNS addressing
As with any other network device, you can arrange for your CPU IP to be
accessible using a name, rather than an IP address. This can be achieved in two
main ways:
Remote user with VNC
viewer accesses IP
address: 129.7.1.10 and
automatically uses port
5900.
• For small networks that do not have a DNS (Domain Name System) server,
edit the ‘hosts’ files on the appropriate remote systems. Using the hosts file,
you can manually link the CPU IP’s address to the required name.
Internet
• For larger networks, declare the IP address and required name to the DNS
server of your local network.
The actual steps required to achieve either of these options are beyond the
scope of this document.
Firewall/router address:
129.7.1.10
The firewall routes the
request from the VNC viewer
on port 5900 through to
the CPU IP at local address
192.168.0.3
CPU IP has a local address
and net mask, i.e.
IP
Access Switch Plus
LOC REM VNC 100 LNK PWR
IP address: 192.168.0.3
Net mask: 255.255.255.0
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Placing CPU IP alongside the firewall
CPU IP is built from the ground-up to be secure. It employs a sophisticated
128bit public/private key system that has been rigorously analysed and found to
be highly secure. Therefore, you can position the CPU IP alongside the firewall
and control hosts that are also IP connected within the local network.
Security can be further improved by using the following suggestions:
• Use a KVM switch with On-Screen-Display driven security access and an auto-
logout (after inactivity) feature to provide a second level of security.
• Place the CPU IP behind a firewall and use port the numbers to route the
VNC network traffic to an internal IP address.
IMPORTANT: If you make the CPU IP accessible from the public Internet or from
a modem, care should be taken to ensure that the maximum security available
is activated. You are strongly advised to enable encryption and use a strong
password. Security may be further improved by restricting client IP addresses,
using a non-standard port number for access or limiting remote access to dial up
connections only.
• Review the activity log from time to time to check for unauthorized use.
• Lock your server consoles after they have been used.
A security white paper that gives further details is available upon request from
LINDY.
Ports
Ensuring sufficient security
In this configuration there should be no constraints on the port numbers
because the CPU IP will probably be the only device at that IP address. Therefore,
maintain the HTTP port as 80 and the VNC port as 5900.
The security capabilities offered by the CPU IP are only truly effective when they
are correctly used. An open or weak password or unencrypted link can cause
security loopholes and opportunities for potential intruders. For network links
in general and direct Internet connections in particular, you should carefully
consider and implement the following:
Addressing
When the CPU IP is situated alongside the firewall, it will require a public static IP
address (i.e. one provided by your Internet service provider).
• Ensure that encryption is enabled.
More addressing information:
• Ensure that you have selected secure passwords with at least 8 characters
and a mixture of upper and lower case and numeric characters.
• Reserve the admin password for administration use only and use a non-
admin user profile for day-to-day access.
• Use the latest Secure VNC viewer (this has more in-built security than is
• Restrict the range of IP addresses that are allowed to access the CPU IP to
• Add a further level of inherent security by restricting access only via modem
or ISDN dialup.
• Ensure that the computer accessing the CPU IP is clean of viruses and
spyware and has up-to-date firewall and anti-virus software loaded that is
appropriately configured.
• Avoid accessing the CPU IP from public computers.
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Power switching configuration
Power control sequences
Power switch configuration comprises two main steps:
Note: The settings given below are for the LINDY power switch - other power
switches may require different settings. Please refer to your power switch
documentation for details about codes required by other power switches.
• Configure the COM2 serial port to the same speed as used by the power
The structure of each power sequence (OFF and ON) is as follows:
• Configure power ON and OFF strings for each relevant host computer.
For each power port there needs to be a valid ‘Power ON string’ and similarly an
appropriate ‘Power OFF string’. In each case, the strings are a short sequence of
characters that combine a box address, a port number, a power on or off value
and finally a checksum number so that the power unit can guard against data
errors.
\w\x\y\z
Where:
w is the switch box address (first box is 80, second box is 81, etc.),
x is ‘31’ for ON or ‘32’ for OFF,
If a particular computer has more than one power input (and thus requires an
equivalent number of power ports to control them), collections of strings can be
combined to switch all of the required ports together as a group.
y is the power port number (from 1 to 8, or 9 to switch all ports),
z is a checksum value - calculate this using the other values (subtract 80H
from the switch box address and then perform an exclusive OR function
between this and the other two values).
To configure the power sequences for each host computer
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
Note: All values are expressed in hexadecimal.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Host configuration’ option.
Thus for the first switch box, the codes that you would use in the Power On and
Power Off fields would be as follows:
4 Click one of the 32 host entry slots to display a Host configuration dialog:
Port(s)
Power On
\80\31\01\30
\80\31\02\33
\80\31\03\32
\80\31\04\35
\80\31\05\34
\80\31\06\37
\80\31\07\36
\80\31\08\39
\80\31\09\38
Power Off
\80\32\01\33
\80\32\02\30
\80\32\03\31
\80\32\04\36
\80\32\05\37
\80\32\06\34
\80\32\07\35
\80\32\08\3A
\80\32\09\3B
1
2
3
4
5
6
7
8
All
6 Enter the Power control sequences in the Power On and Power Off fields
ð
7 Click OK to close the dialog and then click the Save button in the main Host
Configuration window to store the details.
Operation chapter.
To control two ports simultaneously
You can control two power ports using a single sequence. This is done using the
same command structure as shown above, plus a delay command. Immediately
following a port command, insert the characters ‘\*’ before the next command.
For instance, to switch on ports 1 and 2 in the first power switch, the command
line would be:
\80\31\01\30\*\80\31\02\33
For more help with power switch addressing, please contact LINDY support.
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Performing a flash upgrade
CPU IP is fully reconfigurable via flash upgrade.
To perform a flash upgrade
configuration page to determine the current firmware version of the CPU
IP unit.
2 Please contact LINDY Support to get the latest firmware revision.
Configure network option
3 Power down the CPU IP unit. At the rear of the unit, adjacent to the power
input socket, click mini switch 1 to its ON (down) position.
MAC address
Media Access Control address – this
is the unique and unchangeable code
that was hard coded within your CPU IP
unit when it was built. It consists of six
2-digit hexadecimal (base 16) numbers
separated by colons. A section of the
MAC address identifies the manufacturer,
while the remainder is effectively the
unique electronic serial number of your
particular unit.
4 Re-apply power to the CPU IP. On the locally connected monitor you should
see a Maintenance menu:
Network Config
MAC Address 00:0F:58:00:00:04
Use DHCP
IP Address
Net Mask
Gateway
No
Maintenance
192.168.42.154
255.255.255.0
To upgrade unit, visit:
Use DHCP
Current network
Configure Network
OK
When this option is selected, your CPU IP
will attempt to locate a DHCP server on
the network. If such a server is located, it
an IP address, an IP network mask (also
known as a Subnet mask) and a Gateway
address.
address of the
Reset Configuration
CPU IP
Put option switch 1 up to
return to normal operation.
IP address
This is the identity of the CPU IP within
a network. It can either be entered
manually or configured automatically
using the DHCP option. When the DHCP
option is enabled, this entry is greyed
out.
The Maintenance menu should display the current network address
of the CPU IP.
• If the current network address is incorrect then select
the ‘Configure network’ option to change it:
Net mask
5 Use the web browser (not the VNC viewer) on the previously used remote
system, connect to the network address shown in the local Maintenance
menu.
Also often called the ‘subnet-mask’, this
value is used alongside the IP address
to help define a smaller collection (or
subnet) of devices on a network. In
this way a distinction is made between
locally connected devices and ones that
are reachable elsewhere, such as on the
wider Internet.
6 Follow the on screen instructions to upload the firmware file (previously
obtained from LINDY) to the CPU IP.
IMPORTANT: Wait until the upgrade is complete.
7 When the upload is complete and confirmed on screen, log off the remote
system and then power down the CPU IP.
Gateway
This is the address of the device that links
the local network (to which the CPU IP
is connected) to another network such
as the Internet. Usually this is a network
switch or router and it will be used
whenever a device to be contacted lies
outside the local network.
8 At the rear of the unit, return the mini switch 1 to its OFF position and then
re-apply power.
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Operation
To view the local control menu
1 Press and hold the hotkeys (usually
release all three keys.
Connecting to the CPU IP
The CPU IP offers you three ways to connect:
• Local connection,
and
), then press
and finally
Note: The
and
keys when pressed in combination are called
...and two types of viewer:
‘hotkeys’ and they signal to the CPU IP that you wish to control it, rather
than the host computer. However, if these particular hotkeys clash with
another device or program, then your administrator may change them to
a different combination. If the
please contact the system administrator for details.
combination fails to work, then
• VNC viewer,
• Standard web browser.
Local connection
IP Access Switch Plus Control
The keyboard, video monitor and mouse connected directly to the CPU IP offer
password protected access to the host computer(s).
Logoff
Restore Mouse Functions
Configuration
To make a local connection:
1 Using the keyboard connected directly to the CPU IP, press any key to exit
the screensaver and display the logon prompt.
Access Mode Shared
Host
Email server
Return To Host
IP Access Switch Plus Logon
The local control menu contains numerous options, the most useful of which
are:
Username:
Password:
• Access mode - Allows you to select a ‘Private’ mode in order to prevent
other logged on users from viewing your actions on the host computer. Use
and
to change between modes.
Note: For the courtesy of other users, this mode should be used sparingly.
The admin user has the ability to overrule the private setting.
• Host - Where more than one host computer is available via the CPU IP, this
2 Enter your username and password. Providing you have the correct
permissions, the screen will display the currently selected host computer.
option allows you to easily switch between them. Use
between host computers.
and
to change
• Return to host - Quits the control menu and displays the host computer
screen.
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Local connection (continued)
Remote connections
From a remote system, you connect to the CPU IP using a viewer and a link.
There are two types of viewer and two types of link, which can be used in any
combination.
To avoid the ‘hall of mirrors’ effect
IMPORTANT: Never configure a system so that your viewer is viewing itself.
When controlling a host computer using the locally connected keyboard, video
monitor and mouse, it is possible to use the VNC viewer or a browser (if the host
computer is networked) to create a remote link back to itself. This will set up a
‘hall of mirrors’ effect, where the computer is viewing itself into infinity.
IP
While technically possible, the CPU IP unit is not designed to withstand this
treatment and could sustain damage.
OR
OR
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LOC REM VNC 100 LNK PWR
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Remote connection by VNC viewer
Remote connection by Web browser
The VNC viewer is a compact application that runs on your remote system and
allows you to view and use the CPU IP and its host computer(s). VNC viewer is
readily available from a number of different sources:
the CPU IP and its host computer(s). As soon as you make contact with the CPU
IP it will begin downloading a small Java application to your browser, which will
be used only for the duration of your connection.
• from the CPU IP installation CD
To connect using your Web browser
1 Launch your standard Web browser as usual.
2 In the Address section, type the address of the CPU IP as follows:
To connect using the VNC viewer
1 Locate and select the VNC viewer icon
ð
where v.w.x.y is the IP network address, for example 192.168.0.3
A connection details dialog will be displayed:
3 Press
. A connection attempt will be made. In the browser window,
select the ‘Connect using built-in Java VNC viewer’ option to download
a small application that will temporarily empower your browser (on slow
connections the application download can take several tens of seconds to
complete). Once complete, a connection details dialog will be displayed:
Enter the CPU IP address here
and click OK
If required, select the
encryption mode - MORE [+]
The previously entered CPU IP
address will be shown here
Options button
Provides a range of viewer and connection settings - MORE [+]
If required, select the
encryption mode - MORE [+]
2 In the ‘Server:’ entry, type the address of the CPU IP as follows:
Options button
Provides a range of viewer and connection settings - MORE [+]
v.w.x.y
where v.w.x.y is the IP network address, for example 192.168.0.3
4 Make any necessary option/encryption changes and click the OK button
to proceed. Depending on the options selected, you may need to confirm
certain items.
3 Click the OK button. Depending on the options selected, you may need to
confirm certain items. A connection attempt will be made and if successful,
an authentication dialog will be displayed:
5 A second connection attempt will be made and if successful, an
authentication dialog will be displayed:
and show the current host computer. Note: If the Username entry is blanked
out then only admin user account is currently defined and only a password is
required.
and show the current host computer. Note: If the Username entry is blanked
out then only admin user account is currently defined and only a password is
required.
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When using the viewer window
Using the viewer window
The viewer window gives you the ability to view and control the CPU IP and its
host computer(s). Its operation is almost identical regardless of whether you
used the VNC viewer or your Web browser to display it.
What is the best screen resolution to use?
The best resolution for your computer is one that is larger than the screen of
the host computer that you are viewing. This will allow you to see everything
without scrolling around, as described next.
The menu bar
How do I navigate around a larger screen?
The viewer window presents a menu bar similar to that shown below. Certain
items within the toolbar are displayed depending upon your access permissions
and/or the CPU IP configuration.
If the screen that you are viewing has a larger resolution than your viewing
window you will need to scroll around to see all items. The viewer window
allows you to ‘bump scroll’ (only in full screen mode). This means that when
your mouse cursor bumps against the edge of the screen, the screen image will
scroll across automatically.
(VNC viewer only)
Click the VNC
icon to view the
viewer window
options
Displays a menu of
options concerning
keyboard, video and for the current host
mouse operation.
Click to access the
power on/off options
Dialogue area
Indicates your username
and the host system that
you are currently viewing.
This area can also display
other messages.
How do I escape from full screen mode?
Press the F8 button. This button is changeable but is most often set to F8.
computer.
Why is the
This happens when a new host screen is viewed (that has not been viewed
before). Click the button to perform an auto calibration for the screen and
button flashing red?
How do I change between host computers?
The best way to change between host computers is to click the ‘Hosts’ button
How do I remove traces of moved items from the screen?
When you move an item or window across the screen, sometimes it can leave
unsightly trails. These are called artifacts and can be particularly prevalent when
the connection speed is low. To remove artifacts, click the ‘Controls’ button and
Ensures that the Determines the
mouse pointer optimum video and
which you move mouse settings for the
and the mouse
pointer on the
host system
Click to display Allows you
This option is only
available to the
admin user and
provides access
to the main
a list of hosts.
Choose an
entry to
connect to
that host
to choose
between
Shared and
Private access
modes.
currently selected host
computer. This button
will flash red when
a new host screen is
encountered. Click this
button when you first
visit a new screen.
How do I make the most of a slow connection?
The VNC viewer is slightly better suited to slower connections than the browser
viewer when entering the CPU IP address during log on.
configuration
menus.
are correctly
synchronised.
computer.
Adjust the Threshold setting
suggests. Tweak this setting manually to ensure the best setting.
Fewer colours
improvement and looks a lot worse.
Rate limit mouse events
When selected, this mode greatly reduces the mouse movement data that are
sent to the host computer. When you move the local mouse, the remote cursor
will catch up roughly once per second.
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Mouse pointers
Host selection
Both viewers use a double mouse cursor to help overcome any delays caused by
slow connections. When you move your mouse you will see two mouse cursors,
a local one that responds immediately to your movements and a second, slower
moving, cursor that represents the current mouse position at the host.
The Hosts button on the menu bar provides the quickest and most efficient way
to switch between host computers. This is because the button is close at hand,
but also because the screen calibration details for each host are reused when
this method of switching is used. The alternative is to use KVM switch hotkey
combinations or the KVM switch on screen display.
For the browser viewer, the local
cursor is a typical arrow:
Note: The Hosts button is displayed only when the
switching details for two or more computers have
been declared within the configuration section by the
admin user.
Local cursor
To select a host
1 Click the Hosts button to display a list of computers.
2 Click the required computer name to view and control it.
Remote host cursor
Configure
This option is displayed only when you are logged on as the ‘admin’ user. When
selected it provides access to a wide range of CPU IP settings.
For the VNC viewer, the local
cursor is a dot:
Local dot cursor
Remote host cursor
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Access mode - shared/private
Auto calibrate
Up to five users can be simultaneously logged-on (four remote users plus one
local user) and during normal operation, all are able to see the same view of
the currently selected host. If you need to perform a sensitive task that should
not be viewed by other users, you can change the access mode to Private. This
action blanks the viewer window for all other logged on users.
When you visit a host computer for the very first time, your viewer needs to
determine the optimum video and mouse settings for that particular computer.
The button will remind you to click by flashing red when it encounters a
new computer screen. Performing this step is important because it can help
to decrease unnecessary video information being sent across the link, thus
improving overall performance.
Note: For the courtesy of other users, this mode should be used sparingly. The
admin user has the ability to overrule the private setting.
Once this has been done, providing you use the ‘Hosts’ button to switch
between host computers, the video settings for each machine will be re-used.
To change the access mode
Note: When performing an auto calibration, ensure that the screen image
is static (no moving images) and also that there are no on-screen displays
generated by KVM switches (such as host names or menus). This is because they
may confuse the calculation and can result in a lower overall performance level.
For the mouse calibration part, ensure that there are no application windows
located around the upper left corner of the screen. This is because as the mouse
calibration takes place, the cursor may change (to match the application as it
skims across the window) and this may confuse the calculation. Also ensure that
the host system does not have the mouse cursor trails option enabled.
1 Click one of the arrow buttons adjacent to the
Shared/Private indicator.
Power control
When configured (and where you have access rights) this option allows you to
control the mains power input to the currently selected host computer.
Note: This option is generally used to power cycle remote systems that have
failed to respond. Before switching a system off, ensure that all attempts have
first been made to power it down through normal means.
To auto calibrate the screen and mouse
1 Use the Hosts button to select the required computer.
2 Click the
button and then click OK in the subsequent pop-up message.
To switch a system on or off
1 Use the Hosts button to select the required computer.
The screen will appear to freeze for approximately 10 to 60 seconds as
the necessary calculations are made. Operation will return as soon as the
calculations are complete.
2 Click the Power button and then select the Switch on
or Switch off option, as appropriate.
Re-synchronise mouse
If you find that your local mouse pointer and that of the host are not correctly
synchronised, use this feature to re-align their movements. This operation is also
selectable from the Controls menu.
To re-synchronise the mouse
1 Use the Hosts button to select the required computer.
2 Click the
button and then click OK in the subsequent pop-up message.
Note: If you find that this doesn’t work, you may need to perform a mouse
calibration again.
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Controls
When clicked, this button reveals a menu of
options concerned with keyboard, video and mouse
operation.
Resync mouse
Keyboard control
This option has the same effect as the button on the
menu bar and resynchronises the local and remote
mouse pointers.
This option displays a keyboard control dialog and is useful for sending keyboard
combinations (to the host) that are needed regularly or that are trapped by the
CPU IP.
Refresh screen
This option refreshes the whole screen image to remove any artifacts from
moved screen items. This is useful when using very low refresh rates on slow
speed communication links.
Enter the
code here
Click to send
the code
Mouse control
This option displays a mouse control dialog and is useful when the remote
cursor is failing to respond correctly to your mouse movements, even after using
the Resync mouse option.
The mouse control dialog allows you to control the remote mouse cursor using a
selection of buttons that you click with your local mouse.
Click to produce a single
mouse click for the left,
centre or right mouse
buttons
When entering codes:
+ means press and hold down the named key,
– means release the named key.
Click to produce a
It is automatically assumed that all keys specified will be released at the end, so
there is need to specify -Ctrl or -Alt if these keys are to be released together.
continuous mouse click
and hold for the left,
centre or right mouse
buttons
Click to move the remote
mouse cursor up, down,
left or right
Examples:
Click to calibrate the
remote mouse
‘Ctrl + Alt 12’ would be expressed as: +Ctrl+ Alt+1–1+2
+N means press the ‘N’ key
+Scroll means press the Scroll lock key
+Space means press the space key
Click to display the Restore
mouse dialog where you can
reinstate a mouse that has failed
to operate correctly.
choose.
Video settings
see next page
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Video settings
This dialog provides access to all of the key video settings that determine image
quality and link performance.
Setting the Threshold manually
Occasionally it can be useful to manually adjust the Threshold setting, such as
when there is a KVM switch OSD banner that cannot be easily removed from the
display.
Phase
Threshold
The phase setting
adjusts the alignment
of the host video
output and the remote
system video display to
achieve the sharpest
image.
The threshold
1 Use the ‘Calibrate all’ function to ensure that all other settings are
optimised.
is effectively a
noise filter that
differentiates
between valid
video signals and
background noise
or inteference.
This has the
effect of reducing
unnecessary video
signals between
the CPU IP and the
remote system,
thus improving
performance.
2 Click the Threshold left arrow button to decrement the setting by one and
observe the Display activity indicator.
3 Repeat step 2 until the Display activity indicator suddenly rises to a much
higher level (i.e. 50%). This will mean that you have reached the noise
boundary. At this point, increment the Threshold value by 2 or 3 points to
achieve an optimum setting.
Horizontal position
Determines the
horizontal position of
the host screen image
within the viewer
window.
Vertical position
Determines the
vertical position
of the host screen
image within the
viewer window.
Colour, brightness &
contrast
Provides an automatic
setting button to
optimise these three
important video
constituents for the
current host and
connection speed.
Calibrate all
Click to
Display activity
Indicates the level
of video activity
currently in
determine the
optimum settings
for all aspects of
video the video
connection from
the host system.
progress.
All settings can be individually subjected to an auto configuration (click the
appropriate ‘Auto’ button) and most can also be manually adjusted.
Use the ‘Calibrate all’ button to automatically determine the optimum settings
for all items.
Note: Before using the Calibrate all option, ensure that there are no on-screen
display elements generated by any connected KVM switch (such as a host name
label or menu). Due to the differing video rates of these items compared to
the video image from the host itself this can confuse the calibration process
into giving a much higher Threshold rate than is necessary, thus worsening the
screen artefacts.
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Connecting via dial up (modem or ISDN) link
If you need to enter a port number
When you use a modem or ISDN link to make the connection, the CPU IP
uses standard network protocols to create a private two-device network. This
approach ensures consistency and allows you to use exactly the same VNC
viewer or browser to view the hosts systems. This is achieved using PPP (Point to
Point Protocol) and means that you need to use a dial-up networking method to
initiate the connection. Such software is standard with operating systems such
as Windows, Linux and Mac OS.
Usually, when you make a network connection to the CPU IP (either using the
VNC viewer or a Web browser) you simply enter the IP address, i.e. 192.168.0.3.
However, if a special configuration is necessary, then you may be asked to
specify a port number as well as the IP address.
To enter a port number in a Web browser
1 Enter the required IP address in the usual Address box,
To initiate a dial up link
1 Using a system that has a modem or ISDN adapter installed, locate the
dial-up networking option on your system. Please refer to your system
documentation for more information.
2 At the end of the IP address, add a single colon and then enter the port
number (in this example, the required port number is 8000),
2 Using the dial-up networking option, enter the telephone/ISDN number
where the CPU IP can be contacted.
To enter a port number in VNC viewer
1 Enter the required IP address in the usual ‘Server’ box,
3 Initiate the call and when the link is made, continue with either the standard
Note: For the viewer network connection address, you must use the IP
address that the admin user has set as the Server address (or PPP server IP
address) within the Modem configuration screen.
2 At the end of the IP address, add two colons and then enter the port
number (in this example, the required port number is 115900),
Downloading VNC viewer from the CPU IP
The CPU IP has the ability to distribute its own VNC viewer application.
To download the VNC viewer
1 Open your Web browser.
2 Enter the network address where the CPU IP is situated (in the form:
3 In the opening CPU IP screen, click the link that offers to download the
secure VNC viewer ‘from the unit’.
4 Save the download file (vncviewer.exe) to your system.
5 Select and run the downloaded file and then connect to the CPU IP using
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Viewer encryption settings
Supported web browsers
The web browser viewers and VNC viewers (of level 4.0b5S or higher) offer four
encryption options. The resulting actions of certain options depend upon how
the CPU IP to which you are connecting is configured:
The following web browsers have been tested and found to work correctly with
CPU IP.
Windows
• Internet Explorer 5.50 and above,
• Always on - This setting will ensure that the link is encrypted, regardless of
the CPU IP encryption setting.
with Microsoft [Java] Virtual Machine (release 5.50).
with Java Runtime Environment 1.3 or above.
• Let server choose - This setting will follow the configuration of the CPU
IP. If the CPU IP has a preference to encrypt the link, then it will be so,
otherwise the link will not be encrypted.
Linux
• Prefer off - This setting will configure an un-encrypted link if the CPU IP will
• Netscape 4.61 and above,
allow it, otherwise it will be encrypted.
with Java Runtime Environment 1.1 or above.
• Opera,
• Prefer on - If the CPU IP allows it, this setting will configure an encrypted
link, otherwise it will be un-encrypted.
with Java Runtime Environment 1.1 or above.
Whenever encryption does take place, the viewer will first need to create the
necessary secure key before the connection process can continue.
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Further information
This chapter contains a variety of information, including the following:
• Troubleshooting - see below
Getting assistance
If you are still experiencing problems after checking the list of solutions in the
Troubleshooting section then we provide a number of other solutions:
• Getting assistance - see right
If you are still experiencing problems after checking the list of solutions in the
Troubleshooting section then we provide a number of other solutions:
• Appendices
Check the Support section of our website for the latest solutions and driver
files.
• Email
in the UK:
in the US:
in Germany:
in France:
in Italy:
postmaster@lindy.co.uk
usa@lindy.com
info@lindy.de
france@lindy.fr
italia@lindy.it
• Warranty
in Switzerland:
elsewhere:
info@lindy.ch
postmaster@lindy.com
• End user licence agreement
• Fax
in the UK:
in the US:
in Germany:
in France:
in Italy:
01642 765274
(256) 771-0460
0621-4700530
03 88 20 57 74
031 48 06 52
Troubleshooting
Remote network users are unable to contact the CPU IP
• Check that the correct address is being used by the remote users.
in Switzerland:
elsewhere:
061-3359709
+44 (0)1642 754029
• If the CPU IP is situated behind a firewall, check that the relevant ports are
• Phone
in the UK:
in the US:
in Germany:
in France:
in Italy:
01642 754000
(256) 771-0660
0621-470050
0 825 825 111
031 48 40 11
network link is a 100Mbps connection, the 100 indicator should also be on.
The remote cursor is not correctly responding to my mouse movements
not have mouse cursor trails enabled and that the top left corner of the
screen is clear of application windows.
in Switzerland:
elsewhere:
061-3359700
+44 (0)1642 754020
When logging on using VNC viewer, I cannot enter a username
admin user has been configured on the CPU IP.
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Appendix 1 - Local configuration menus
This section covers the control menus that are available when you are using the
locally connected keyboard, video monitor and mouse.
To access the local configuration menus
• On the locally connected keyboard, simultaneously press
.
Note: If the standard hotkeys (CTRL + ALT) have been changed, then you
need to use those keys together with C to access the menus.
IP Access Switch Plus Control
Logoff
Restore Mouse Functions
If you are not logged on as the
‘admin’ user then the Configuration
menu will not be available.
Configuration
Access Mode Shared
Host
Email server
Use the Host entry to switch to the
required host computer (when a KVM
switch is used).
Return To Host
Select the ‘Configuration’ option to display:
Configuration
Unit Configuration
Network Configuration
Modem Configuration
Select the required option:
Reset Configuration
Back
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Unit configuration
This page provides access
to a selection of both basic
and fundamental settings
for the CPU IP.
IP Access Switch + Unit Config
To get here
1 Use the local keyboard and log on as the ‘admin’ user.
Hardware
Firmware
Rev 1
Version 1.11b1
2 Press
(hotkeys may be different).
Keybd Layout UK
Admin Passwd
Unit Name
3 Select ‘Configuration’.
4 Select ‘Unit configuration’.
Hot Keys
Screensaver
Time
Ctrl+Alt
10 mins
21 : 27 : 31
Date
15
Apr
2004
Encryption
Prefer Off
Save
Cancel
Screensaver
Keybd layout
Use the left and right arrow keys to select an appropriate period of inactivity on
the local keyboard or mouse before a screensaver is displayed and the user is
logged out. This setting applies to local users only and once the screensaver is
displayed, for security purposes the user is required to log in again. The timeout
period can be selected between 5 minutes and 1 day (24 hours), it cannot be
connections.
Use the arrow buttons to match the keyboard layout expected by the host
system.
Admin password
Enter the password that will be used to gain administrator access to the CPU
IP. There can only be one admin user and only that user is given access to the
configuration menus. The admin password background will be red until a
reasonably secure password has been entered, although this is only advisory as
any password or no password may be entered.
Time and date
Use the left and right arrow keys to select the correct time and date. The time
entry uses the 24 hour clock notation. The internal real time clock will continue
to run for roughly one week without power to the CPU IP, after that it will be
lost and require resetting. Use the up and down arrow keys to move between
each of the sections within the time and date entries.
Unit name
The name entered here will be displayed on the local menus and the remote
VNC/browser windows.
Hot keys
Use the left and right arrow keys to select an appropriate hot key sequence for
the locally connected keyboard. This sequence is used in combination with other
keypresses to access the on-screen menus and to change between hosts. The
options are: Ctrl+Alt (default), Ctrl+Shift, Alt+Shift, Alt Gr, Left + Right Alt, Left
Ctrl + Alt or Right Ctrl + Alt.
Encryption
Three options are available: Always on, prefer off, prefer on. The one to choose
details. The use of encryption imposes a slight performance overhead of roughly 10%
but is highly secure against third party intrusion.
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Network configuration
This page allows you to
configure the various
aspects of the IP port and its
relationship with the local
network.
To get here
Network Config
1 Use the local keyboard and log on as the ‘admin’ user.
MAC Address 00:0F:58:00:00:04
2 Press
(hotkeys may be different).
Use DHCP
IP Address
Net Mask
Gateway
No
3 Select ‘Configuration’.
192.168.42.154
255.255.255.0
4 Select ‘Network configuration’.
VNC Port
HTTP Port
5900
80
Clear IP Access Control
Save Cancel
MAC address
Gateway
Media Access Control address – this is the unique and unchangeable code that
was hard coded within your CPU IP unit when it was built. It consists of six 2-
digit hexadecimal (base 16) numbers separated by colons. A section of the MAC
address identifies the manufacturer, while the remainder is effectively the unique
electronic serial number of your particular unit.
This is the address of the device that links the local network (to which the CPU IP
is connected) to another network such as the Internet. Usually this is a network
switch or router and it will be used whenever a device to be contacted lies
outside the local network.
VNC port
Use DHCP
This is the logical link through which communications with a remote VNC viewer
a widely recognised port number for use by VNC software. However, in certain
circumstances it may be advantageous to alter this number - see Security issues
with ports for more details.
DHCP is an acronym for ‘Dynamic Host Configuration Protocol’. Its function is
particularly useful when connecting to medium size or larger networks, such
as the Internet. When this option is selected, your CPU IP will attempt to locate
a DHCP server on the network. If such a server is located, it will supply three
things to the CPU IP: an IP address, an IP network mask (also known as a Subnet
mask) and a Gateway address. These are not usually granted permanently, but
on a ‘lease’ basis for a fixed amount of time or for as long as the CPU IP remains
Note: The VNC port and HTTP port can be set to the same port number in order
to simplify router and firewall configuration. If this is done then the CPU IP will
“listen” for both types of traffic on the single port.
HTTP port
IP address
This is the logical link through which communications with a remote web
browser will be channelled. The default setting of 80 is an established standard
for web (HTTP – HyperText Transfer Protocol) traffic though this can be changed
to suit your local network requirements.
This is the identity of the CPU IP within a network. The IP address can be
thought of as the telephone number of the CPU IP. Unlike the MAC address,
the IP address can be altered to suit the network to which it is connected. It can
either be entered manually or configured automatically using the DHCP option.
When the DHCP option is enabled, this entry is greyed out.
Clear IP access control
This option removes all entries from the IP access control feature within the
CPU IP. The IP access control feature (configurable by a remote admin user)
allows certain network address ranges to be denied access to the CPU IP. If set
incorrectly, it is possible to exclude all network users and so this option provides
an emergency recovery point.
Net mask
Also often called the ‘subnet-mask’, this value is used alongside the IP address
to help define a smaller collection (or subnet) of devices on a network. In this
way a distinction is made between locally connected devices and ones that are
reachable elsewhere, such as on the wider Internet. This process helps to reduce
overall traffic on the network and hence speed up connections in general.
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Modem configuration
This page allows you to
configure the COM1 serial
port located at the rear of
the CPU IP.
To get here
Modem Config
1 Use the local keyboard and log on as the ‘admin’ user.
2 Press
(hotkeys may be different).
Server IP
Client IP
Baud Rate
192.168.3.1
192.168.3.2
115200
3 Select ‘Configuration’.
4 Select ‘Modem configuration’.
Init String
ATZHS0=1
Initialize Port
Restore Defaults
Save
Cancel
Server IP / Client IP
Init string
When a user dials into the CPU IP via a modem or ISDN adapter, the CPU IP
sets up a temporary two-device network using PPP (Point to Point Protocol). For
this purpose, both devices must have ‘dummy’ IP addresses so that they can
communicate correctly. These two addresses can be almost anything expressed
in the quad octet format (i.e. 192.168.3.1.). However, it is advisable not to make
them the same as the real IP addresses used by either the remote system or the
CPU IP.
The codes entered here are used to prepare the connected modem or ISDN
terminal adapter for use with the CPU IP. The default code is a Hayes-compatible
string to configure auto answer mode and would be understood by the vast
majority of modem/ISDN devices. The code is sent when the CPU IP is first
switched on or whenever the Initialize button is clicked.
Initialize port
When selected, this option sends the characters entered in the ‘Init string’ field
to the connected modem or ISDN terminal adapter.
Baud rate
This option configures the speed of the serial connection between the CPU
IP and a connected modem or ISDN terminal adapter. The default setting is
115200. The other communication settings are fixed as: No parity, 8 bit word, 1
stop bit.
Restore Defaults
When selected, this option resets the ‘Baud rate’ and ‘Init string’ values to their
original default settings.
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Reset configuration
This option allows you to
completely reset the CPU IP.
To get here
Reset Config
1 Use the local keyboard and log on as the ‘admin’ user.
2 Press
(hotkeys may be different).
WARNING: Continuing will cause
your existing configuration to
be erased.
3 Select ‘Configuration’.
4 Select ‘Reset configuration’.
The unit will then reset and
require re-configuring before
it can be used.
DO YOU WISH TO CONTINUE?
RESET
Cancel
WARNING: This process will remove all settings and return the unit to use its
original state. A complete reconfiguration will be required before it can be used.
To reset the CPU IP configuration
1 With the RESET option highlighted, press
.
2 The first screen of the initial configuration process will be displayed. See
Initial configuration for details.
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Clear IP access control
This option removes all entries from the IP access control feature within the CPU
IP.
What is IP access control?
The IP access control feature (configurable by a remote admin user) allows
certain network address ranges to be denied access to the CPU IP. If set
incorrectly, it is possible to exclude all network users and so this option provides
an emergency recovery point.
To clear IP access control
1 Use the local keyboard and log on as the ‘admin’ user.
2 Press
(hotkeys may be set differently).
3 Select ‘Configuration’.
Network Config
4 Select ‘Network
configuration’.
MAC Address 00:0F:58:00:00:04
5 Highlight the ‘Clear IP
access control’ option
Use DHCP
IP Address
Net Mask
Gateway
No
192.168.42.154
255.255.255.0
and press
.
VNC Port
HTTP Port
5900
80
Clear IP Access Control
Save Cancel
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Appendix 2 - VNC viewer connection options
When you are connecting to the
CPU IP using the VNC viewer, a
number of options are available.
IMPORTANT: If you make any changes to the options given here and wish to
retain them for successive connection sessions, you must save the changes.
To do this, change to the ‘Defaults’ tab and click the ‘Save as defaults’ button.
Click here to access the options
There are five tabbed pages of options:
Colour/Encoding
Auto select
Colour level
When ticked, this option will
examine the speed of your
connection to the CPU IP and apply
the most suitable encoding method.
This option is suggested for the
majority of installations.
This section allows you to select the most appropriate colour level for the
speed of the connection to the CPU IP. Where the connection speed is slow or
inconsistent there will be a necessary compromise between screen response and
colour depth.
• Full – This mode is suitable only for fast network connections and will pass
on the maximum colour depth being used by the host system.
• Medium (256 colours) – This mode reduces the host system output
to a 256 colour mode and is more suitable for ISDN and fast modem
connections.
Preferred encoding
There are three manually selectable
encoding methods which are
accessible when the Auto select
option is unticked.
• Low (64 colours) – This mode is suitable for slower modem connections
and reduces the host system output to 64 colours.
• ZRLE – This is a highly compressed method that is best suited to slow
• Very low (8 colours) – This mode provides very rudimentary picture
quality and hardly any speed advantage over the 64 colour setting. You are
recommended not to use this mode.
modem connections.
• Hextile – This method offers better performance than the ZRLE when used
over a high speed network because there is no need for the CPU IP to spend
time highly compressing the data.
• Raw – This is a primitive, uncompressed method that is mainly used for
technical support issues. You are recommended not to use this method.
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Inputs
Misc
Send pointer events to server
Shared connection (do not dis-
When un-ticked, the VNC viewer
will not send mouse movement
or click data to the CPU IP or host
system.
connect other viewers)
This option does not apply to CPU IP
connections.
Full screen mode
Send keyboard events to server
When un-ticked, the VNC viewer
will not send keyboard information
to the CPU IP or host system.
When ticked, the VNC viewer will
launch in full screen mode. Use the
menu key (usually F8) to exit from
full screen mode.
Send clipboard changes to server
This feature is restricted to software
server versions of VNC and has no
effect on CPU IP installations.
Render cursor locally
This option does not currently apply
to CPU IP connections.
Allow dynamic desktop resizing
Accept clipboard changes from server
When ticked, the viewer window will be automatically resized whenever the
host system’s screen resolution is altered.
This feature is restricted to software server versions of VNC and has no effect
on CPU IP installations, except for retreiving the activity log as desribed in the
logging and status section.
Only use protocol version 3.3
This option does not apply to CPU IP connections.
Enable 3-button mouse emulation
Beep when requested to by the server
When ticked, your local system will beep in response to any error beeps emitted
by the CPU IP.
This feature allows you to use a 2-button mouse to emulate the middle button
of a 3-button mouse. When enabled, press the left and right mouse buttons
simultaneously to create a middle button action. You are advised to generally
use a 3-button mouse.
Rate-limit mouse move events
When ticked, this feature reduces the mouse movement information that is sent
to the CPU IP and host system. This is useful for slow connections and you will
notice that the remote cursor will catch up with the local cursor roughly once
every second.
Menu key
This feature allows you to select which function key is used to display the VNC
viewer options menu. The menu key is only way to exit from the full screen
viewer mode.
IMPORTANT: If you make any changes to the options given here and wish to
retain them for successive connection sessions, you must save the changes.
To do this, change to the ‘Defaults’ tab and click the ‘Save as defaults’ button.
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Identities
Defaults
This feature helps your VNC viewer
Reload defaults
to confirm that a revisited CPU IP
is genuine and not another device
masquerading as a CPU IP. The list
given will retain the identities of all
visited CPU IP units (that have full
security enabled).
When clicked, all connection options
are returned to the default settings
that are currently saved.
Save as defaults
When clicked, saves the current
connection options as the default set
that will be used in all subsequent
VNC connections.
When you first make a secure
connection to the CPU IP, the
security information for that CPU
IP unit is cached within this Identity
tab (i.e. the CPU IP’s “identity” is
known). The next time that you
connect to the CPU IP, its identity is
checked against the stored version.
If a mismatch is found between the current and the stored identities then a
warning will be issued to you.
Save configuration file as...
Allows you to save the current
settings so that they can be copied
from one viewer to another.
If an existing CPU IP is fully reconfigured then it will need to issued with a new
identity. In this case the previous identity, listed in this tab, should be removed so
that a new identity can be created on the next connection.
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Appendix 3 - VNC viewer window options
Click the VNC icon in the top left corner of the viewer window (or press F8) to
display the window options:
Standard window control items
Full screen
Expands the VNC viewer window to fill the whole screen
with no visible window edges or toolbar. Press F8 to re-
display this menu.
Send F8
Passes the F8 function key code to the CPU IP and host
system. This is necessary because F8 is trapped by the VNC
viewer for use as the trigger for this options menu.
Send Ctrl-Alt-Del
Passes a Ctrl-Alt-Del sequence to the host system.
New connection...
Displays the connection dialog so that you can log on to a
different CPU IP or VNC server location.
Options...
Displays the full range of connection options - see
Appendix 2 for more details.
Save options...
Allows you to save the current VNC connection options
for use during the next session.
Connection info...
Displays various connection and display details.
About...
Displays information about your VNC viewer.
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Inputs
Appendix 4 - Browser viewer options
When you are connecting to the CPU
IP using a Web browser, a number of
options are available.
View only (ignore mouse & keyboard)
When ticked, the viewer will not send keyboard or mouse information to the
CPU IP or host system.
Accept clipboard from server
This feature is restricted to software server versions of VNC and has no effect on
CPU IP installations.
Click here to access the options
Send clipboard to server
There is a single page of options:
This feature is restricted to software server versions of VNC and has no effect on
CPU IP installations.
Encoding and colour level
Auto select
Security
When ticked, this option will examine
the speed of your connection to the CPU
IP and apply the most suitable encoding
method. This option is suggested for the
majority of installations.
512 bits (low security)
Selects the lowest level of encoding for communications between the browser
and the CPU IP.
1024 bits (medium security)
Selects the middle level of encoding for communications between the browser
and the CPU IP.
Preferred encoding
There are three manually selectable
encoding methods which are accessible
when the Auto select option is unticked.
2048 bits (high security)
Selects the highest level of encoding for communications between the browser
and the CPU IP.
• ZRLE – This is a highly compressed
method that is best suited to slow
modem connections.
Misc
• Hextile – This method offers better
performance than the ZRLE when
Shared (don’t disconnect other viewers)
This feature is restricted to software server versions of VNC and has no effect on
CPU IP installations.
used over a high speed network
because there is no need for the CPU
IP to spend time highly compressing the data.
Render cursor locally
This feature is restricted to software server versions of VNC and has no effect on
CPU IP installations.
• Raw – This is a primitive, uncompressed method that is mainly used for
technical support issues. You are recommended not to use this method.
Colour level
Fast CopyRect
The colour level is fixed at Medium (256 colours) for almost all browsers.
This feature is restricted to software server versions of VNC and has no effect on
CPU IP installations.
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Appendix 5 - Remote configuration menus
This section covers the configuration menus that are available to remote admin
users using either the VNC viewer or the browser methods of access.
To access the remote configuration menus
• Click the Configure button in the top right
corner of the window when logged on as
the admin user.
Main configuration menu
Logged on users
Indicates the current users
irrespective of whether they are
connected locally, by modem/
ISDN or via a network.
Click the required option
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User accounts
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
This section allows you to manage up to sixteen separate accounts.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘User accounts’ option.
The first of the sixteen accounts is the admin account and is the only account
with access rights to the configuration menus. The user name and access rights
are fixed for the admin account, the only change possible for this account is the
password.
There are fifteen user account positions.
User Name
All user names must consist of lower case characters or numbers only. No
symbols or upper case characters are permissible. The user name can be
between 1 and 16 characters in length.
Password
Passwords are case sensitive and can include certain keyboard symbols. The
password can be between 1 and 16 characters in length. It is important to note,
however, that the password background remains shaded in amber while the
CPU IP considers your entered password to be too easy to guess. A suitable
password is best constructed using a mixture of more than 6 letters, numbers
and punctuation characters.
Local
When ticked, the selected user can gain access using the local KVM console
directly connected to the CPU IP.
Modem
When ticked, the selected user can gain access via a modem or ISDN link
(requires external modem/ISDN equipment to be connected to the CPU IP).
Remote
When ticked, the selected user can gain access via an IP network link, such as a
local intranet or the wider Internet (depending on how the CPU IP is connected).
Power
To create a new account
When ticked, the selected user will be permitted to control the power input to
host systems (requires optional power control switch unit(s) to be fitted).
1 Enter the required User Name to activate that position (the Password and
access tick box positions will become editable).
2 Optionally enter a password for the user account.
3 Tick/untick the Local, Modem, Remote and Power options that are
appropriate to the user.
4 Click the Save button to register your changes.
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Unit configuration
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
This page provides access to a selection of both basic and fundamental settings
for the CPU IP. Many of the settings displayed here are also accessible through
the on-screen menu on the locally attached keyboard, mouse and monitor.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Unit configuration’ option.
Unit name
The name entered here will be displayed on the local menus and the remote
VNC/browser windows.
Local hot key sequence
Use the arrow buttons to select an appropriate hot key sequence for the locally
connected keyboard. This sequence is used in combination with other keypresses
to access the on-screen menus and to change between hosts. The options are:
Ctrl+Alt (default), Ctrl+Shift, Alt+Shift, Alt Gr, Left + Right Alt, Left Ctrl + Alt or
Right Ctrl + Alt.
Screensaver timeout
Use the arrow keys to select an appropriate period of inactivity before a
screensaver is displayed and the user is logged out. This setting applies to local
users only and once the screensaver is displayed, for security purposes the user is
required to log in again. The timeout period can be selected between 5 minutes
and 1 day (24 hours), it cannot be disabled.
Time and date
Use the arrow keys to select the correct time and date. The time entry uses the
24 hour clock notation. The internal real time clock will continue to run for
roughly one week without power to the CPU IP, after that it will be lost and
require resetting.
Encryption
Hardware Version
Three options are available: Always on, prefer off, prefer on. The one to choose
details. The use of encryption imposes a slight performance overhead of roughly 10%
but is highly secure against third party intrusion.
Indicates the version of the electronic circuitry within the CPU IP unit.
Firmware Version
Indicates the version of the hardwired software within the CPU IP’s flash
Host Keyboard Layout
Use the arrow buttons to match the keyboard layout expected by the host
system.
Admin password
Enter the password that will be used to gain administrator access to the CPU
IP. There can only be one admin user and only that user is given access to the
configuration menus.
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Advanced unit configuration
Click this button to display several advanced options that do not normally
require alteration.
Force VNC protocol 3.3
IMPORTANT: The use of this option is not recommended. Protocol 3.3 is a legacy
version that does not offer any encryption.
Idle timeout
Determines the period of inactivity on a remote connection before the user
is logged out. The idle timeout period can be set to any time span, expressed
connections.
Protocol timeout
Sets the time period by which responses should have been received to outgoing
data packets. If the stated period is exceeded, then a connection is considered
lost and terminated.
Background refresh rate
Use the arrow keys to alter the refresh rate for screen images via remote links.
This allows you to tailor the screen refresh to suit the network or modem
connection speeds. The options are: Slow, Medium, Fast or Disabled. When the
disabled option is selected, the remote users will need to manually refresh the
screen.
Note: When a low connections speed is detected, the background refresh is
automatically disabled, regardless of the settings of this option.
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Unit configuration’ option.
4 Click the ‘Advanced unit configuration’ option.
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Network configuration
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
This page allows you to configure the various aspects of the IP port and its
relationship with the local network.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Network configuration’ option.
IP address
thought of as the telephone number of the CPU IP. Unlike the MAC address,
the IP address can be altered to suit the network to which it is connected. It can
either be entered manually or configured automatically using the DHCP option.
When the DHCP option is enabled, this entry is greyed out.
IP network mask
to help define a smaller collection (or subnet) of devices on a network. In this
way a distinction is made between locally connected devices and ones that are
reachable elsewhere, such as on the wider Internet. This process helps to reduce
overall traffic on the network and hence speed up connections in general.
IP gateway
This is the address of the device that links the local network (to which the CPU IP
is connected) to another network such as the wider Internet. Usually the actual
gateway is a network switch or router and it will be used whenever a required
address lies outside the current network.
VNC port
MAC address
This is the logical link through which communications with a remote VNC viewer
a widely recognised port number for use by VNC software. However, in certain
circumstances it may be advantageous to alter this number - see ‘Security issues
with ports’ for more details.
Media Access Control address – this is the unique and unchangeable code that
was hard coded within your CPU IP unit when it was built. It consists of six 2-
digit hexadecimal (base 16) numbers separated by colons. A section of the MAC
address identifies the manufacturer, while the remainder is effectively the unique
electronic serial number of your particular unit.
HTTP port
Use DHCP
This is the logical link through which communications with a remote web
established standard for web (HTTP – HyperText Transfer Protocol) traffic though
this can be changed to suit your local network requirements.
DHCP is an acronym for ‘Dynamic Host Configuration Protocol’. Its function is
particularly useful when connecting to medium size or larger networks, such
as the Internet. When this option is selected, your CPU IP will attempt to locate
a DHCP server on the network. If such a server is located, it will supply three
things to the CPU IP: an IP address, an IP network mask (also known as a Subnet
mask) and a Gateway address. These are not usually granted permanently, but
on a ‘lease’ basis for a fixed amount of time or for as long as the CPU IP remains
IP access control
This section allows you to optionally specify ranges of addresses which will or
won’t be granted access to the CPU IP. If this option is left unchanged, then the
default entry of ‘+0.0.0.0/0.0.0.0’ ensures that access from all IP addresses will
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Setting IP access control
The golden rule with this feature is ‘Include before you exclude’ or to put it
another way ‘Arrange allowed addresses in the list before the denied addresses’.
To define a new IP access control entry
1 Click the Add button to display a popup dialog:
This is because the positions of entries in the list are vitally important. Once a
range of addresses is denied access, it is not possible to make exceptions for
particular addresses within that range. For instance, if the range of addresses
from A to F are denied access first, then the address C could not be granted
access lower down the list. Address C needs to be placed in the list before the
denied range.
IMPORTANT: This feature should be configured with extreme caution as it is
possible to deny access to everyone. If such an error occurs, see Clear IP access
control for details about how to regain access.
Network/Address
Mask
Access
Enter the network address
that is to be allowed or denied
access. If a range of addresses
is being specified then specify
any one of the addresses
within the range and use the
Mask entry to indicate the size
of the range.
Enter an IP network mask
that indicates the range of
addresses that are to be
allowed or denied access.
For instance, if only a single
specified IP address were to be
required, the mask entry would
be 255.255.255.255 in order
to specify a single location. See
access control for details.
Use the arrow buttons to
select either ‘Allow’ or
‘Deny’ as appropriate.
In the list, access control addresses prefixed by ‘+’ are allow entries while those
prefixed by ‘– ‘ are deny entries.
access setting.
3 Click the OK button.
To reorder access control entries
IMPORTANT: When reordering, ensure that any specific allowed addresses are
listed higher in the list than any denied addresses. Take care not to invoke any
deny access settings that would exclude valid users.
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Network configuration’ option.
1
2
In the access control list, click on the entry to be moved.
Click the Up or Down buttons as appropriate.
To edit/remove access control entries
1
In the access control list, click on the appropriate entry.
2
Click either the Edit or Remove button as appropriate.
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Serial port configuration
This page provides all access to settings concerned with the two serial ports
(modem and power control) that are situated at the rear of the CPU IP.
Modem port
PPP server IP address / PPP client IP address
When a user dials into the CPU IP via a modem or ISDN adapter, the CPU IP
sets up a temporary two-device network using PPP (Point to Point Protocol). For
this purpose, both devices must have ‘dummy’ IP addresses so that they can
communicate correctly. These two addresses can be almost anything expressed
in the quad octet format (i.e. 192.168.3.1.). However, it is advisable not to make
them the same as the real IP addresses used by either the remote system or the
CPU IP.
Baud rate
This option configures the speed of the serial connection between the CPU
IP and a connected modem or ISDN terminal adapter. The default setting is
115200. The other communication settings are fixed as: No parity, 8 bit word, 1
stop bit.
Initialization sequence
The codes entered here are used to prepare the connected modem or ISDN
terminal adapter for use with the CPU IP. The default code is a Hayes-compatible
string to configure auto answer mode and would be understood by the vast
majority of modem/ISDN devices. The code is sent when the CPU IP is first
switched on or whenever the Initialize button is clicked.
Initialize
When clicked, this option sends the characters entered in the Initialisation
sequence field to the connected modem or ISDN terminal adapter.
Restore Defaults
To get here
When clicked, this option resets the Baud rate and Initialisation sequence values
to their original default settings.
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Serial port configuration’ option.
Power control port
Baud rate
This option configures the speed of the serial connection between the CPU IP
and a connected power control unit. The default setting is 9600 as used by
the majority of power units. The other communication settings are fixed as: No
parity, 8 bit word, 1 stop bit.
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Host configuration
This page provides the opportunity to configure various details for each of the
host systems that may be connected to the CPU IP via one or more KVM switch
units. There are 32 entries, each of which can be configured with a name,
the permitted users, the hot key combinations required to switch to it and, if
required, appropriate power control commands.
To create a new host entry
1 Click one of the 32 host entries to reveal a Host configuration dialog.
Name
Enter the name that will be displayed in the viewer window when you click the Host button.
Users
Select the users that will be permitted to connect to this host. Either enter to allow all users
*
or a list of users separated by commas (e.g. admin,nigel,andy,steve).
Hot keys
Declare the hot key sequence that will cause the KVM switch to link with the required host
system. The following notations are used: ‘+‘ means press down the following key; ‘-‘ means
release the following key; * means add a 250 millisecond delay; the entries are not sensitive to
case.
For instance, to send the command Ctrl + Alt 4 you should enter the following: +Ctrl+Alt+4.
To send the command Ctrl + Alt 12 you should enter the following: +Ctrl+ALT+1-1+2
(the ‘-1’ entry causes the 1 key to be released before the 2 key is pressed).
Note: It is not necessary to specify all keys to be released at the end because they are all
Power On
Enter the code required to make an attached power control unit apply power to the selected
Power Off
Enter the code required to make an attached power control unit remove power from the
2 Enter the required information in each field.
3 Click the OK button.
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Host configuration’ option.
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Logging and status
This screen provides various details about the user activity on the CPU IP.
To copy and paste the log
You can copy the information listed within the log and paste it into another
application.
Date and
time the
event
User
name
Access method
or remote IP
address
Type
of
event
1 While viewing the log screen, press Ctrl and C, to copy the data into the
clipboard.
occurred
2 In a text application (i.e. Word, WordPad, Notepad) press Ctrl and V, or right
mouse click and ‘Paste’.
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Logging and status’ option.
Click to clear
all log entries
Click to
refresh
the list
Click to
return to
the main
menu
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Appendix 6 – Addresses, masks and ports
Net masks
IP address, network masks and ports are all closely linked in the quest for one
device to find another across disparate network links.
The net mask (or sub-net mask) informs a device as to its own position within a
network. From this it can determine whether any other device is within the same
local network or is situated further afield.
IP addresses
Taking the telephone number analogy given in the IP address section, in order
to use the telephone system efficiently, it is vital for you to know your location
relative to the person you are calling. In this way you avoid dialling unnecessary
numbers.
As a rough analogy, consider how you use the telephone system. The phone
number for LINDY in the UK is 0044 (0)1642 754000. This number consists of
three distinct parts:
When one network device needs to talk to another, the first thing that it will
do is a quick calculation using its own IP address, the other device’s IP address
and its own net mask. Suppose a device with address 192.168.142.154 and
net mask 255.255.255.0 needed to communicate with a device at address
192.168.142.22. The sending device would perform several calculations:
• 0044 connects from another country to the UK
• (0)1642 selects the main telephone exchange in the Thornaby area of
Stockton-on-Tees, and
• 754000 is the unique code for LINDY within Thornaby.
The important parts of the whole number depend on where you are. If you were
based in the same local area as LINDY, there would be no point in dialling out of
the UK, or even out of the area. The only part of the whole number that you are
interested in is the final part: 754000.
1
Sending
device IP
address
Destination
device IP
address
192 168 142 154
192 168 142 000
192 168 142 22
192 168 142 000
In a similar way to the various parts of the telephone number, the four sections
(or Octets) of every IP address have different meanings or “weights”. Consider
the following typical IP address:
Net mask
Result
3
2
192.168.142.154
192 is the most global part of the number (akin to the 0044 of the phone
number) and 154 is the most local (similar to the 754000 unique local code of
the phone number).
192.168.142.000 = 192.168.142.000 ? Answer: YES
4
Address
is local
When two network devices communicate with each other, they always “dial the
whole number” regardless of their respective locations in a network. However,
they still need to know whether the other device is local to them or not, and this
is where the net mask comes into play.
1 The net mask is used to determine the local and global parts of the sender’s IP
address. Where there is 255 in the mask, the corresponding address slips through,
where there is a 0, it is blocked.
2 Where the net mask was 0, the corresponding part of the result is also zero - this
section is now known to be the local part of the IP address.
3 The same process is carried out for the destination address, again using the sender’s
net mask. Now the local parts of both addresses have been equalised to zero, because
their values are not important in determining whether they are both in the same local
network.
4 The results of the two net mask operations are now compared, if they match, the
destination is local. If not, then the sender will still use the same full destination IP
address but will also flag the message to go via the local network gateway and out
into the wider world.
The reason for doing this? It makes the network, as a whole, much more
efficient. If every message for every recipient was shoved straight out onto the
Internet, the whole thing would grind to a halt within seconds. Net masks keep
local traffic just that - local.
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Net masks - the binary explanation
To really understand the operation of a net mask it is necessary to delve deeper
into the life blood of computers – binary; this is native digital, where everything
is either a 1 (one) or 0 (zero), on or off, yes or no.
AND function’. The example of 255.255.255.0 is handy because the last octet
is completely zero and is “clean” for illustrative purposes. However, actual net
mask calculations are carried out, not on whole decimal numbers, but bit by bit
on binary numbers, hence the term ‘bit-wise’. In a real local network, a net mask
might be 255.255.255.240. Such an example would no longer be quite so clear,
until you look at the net mask in its binary form:
11111111.11111111.11111111.11110000
In this case, the four zeroes at the end of the net mask indicate that the local
part of the address is formed by only the last four bits. If you use the diagram
from the previous example and insert the new net mask, it will have the
following effect on the final result:
Decimal octet prior to AND
operation with net mask
Binary equivalent of 154
154
192 168 142 154
192 168 142 144
10011010
1
0
1
0
1
0
1
0
Inside a bit-wise AND function
When you “open up” the last octet
of the net mask and look at the
binary inside, you can see the last
four zero bits preventing any 1’s in
the address from falling through.
10010000
Binary octet after AND
operation with net mask
Decimal equivalent of 10010000
144
Thus, when 154 is bit-wise ANDed with 240, the result is 144. Likewise, any
local address from 192.168.142.144 through to 192.168.142.159 would
produce exactly the same result when combined with this net mask, hence they
would all be local addresses. However, any difference in the upper three octets
or the upper four bits of the last octet would slip through the mask and the
address would be flagged as not being local.
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Calculating the mask for IP access control
The IP access control function uses a standard IP address and a net mask
notation to specify both single locations and ranges of addresses. In order to
use this function correctly, you need to calculate the mask so that it accurately
encompasses the required address(es).
The permissible mask values (for all octets) are as follows:
Mask octet
255
Binary
Number of addresses encompassed
1 address
11111111
11111110
11111100
11111000
11110000
11100000
11000000
10000000
00000000
254
2 addresses
Single locations
252
4 addresses
Some of the simplest addresses to allow or deny are single locations. In this case
you enter the required IP address into the ‘Network/Address’ field and simply
enter the ‘Mask’ as 255.255.255.255 (255 used throughout the mask means
that every bit of the address will be compared and so there can only be one
unique address to match the one stated in the ‘Network/Address’ field).
248
8 addresses
240
16 addresses
224
32 addresses
192
64 addresses
All locations
128
128 addresses
256 addresses
The other easy setting to make is ALL addresses, using the mask 0.0.0.0 As
standard, the IP access control section includes the entry: 0.0.0.0/0.0.0.0
0
+
If the access control range that you need to define is not possible using one
address and one mask, then you could break it down into two or more entries.
Each of these entries could then use smaller ranges (of differing sizes) that,
when combined with the other entries, cover the range that you require.
The purpose of this entry is to include all IP addresses. It is possible to similarly
exclude all addresses, however, take great care not to do this as you instantly
Address ranges
For instance, to accurately encompass the range in the earlier example:
Although you can define ranges of addresses, due to the way that the mask
operates, there are certain restrictions on the particular ranges that can be set.
For any given address you can encompass neighbouring addresses in blocks of
either 2, 4, 8, 16, 32, 64, 128, etc. and these must fall on particular boundaries.
For instance, if you wanted to define the local address range:
192.168.142.67 to 192.168.142.93
You would need to define the following six address and mask combinations in
the IP access control section:
Network/address entry Mask entry
192.168.142.67 to 192.168.142.93
192.168.142.67
192.168.142.68
192.168.142.72
192.168.142.80
192.168.142.88
192.168.142.93
255.255.255.255
255.255.255.252
255.255.255.248
255.255.255.248
255.255.255.252
255.255.255.255
defines 1 address (.67)
The closest single block to cover the range would be the 32 addresses from:
192.168.142.64 to 192.168.142.95.
defines 4 addresses (.68 to .71)
defines 8 addresses (.72 to .79)
defines 8 addresses (.80 to .87)
defines 4 addresses (.88 to .92)
defines 1 address (.93)
The mask needed to accomplish this would be: 255.255.255.224
When you look at the mask in binary, the picture becomes a little clearer. The
above mask has the form: 11111111.11111111.11111111.11100000
Ignoring the initial three octets, the final six zeroes of the mask would ensure
that the 32 addresses from .64 (01000000) to .95 (01011111) would all be
details.
When defining a mask, the important rule to remember is:
There must be no ‘ones’ to the right of a ‘zero’.
For instance, (ignoring the first three octets) you could not use a mask that had
11100110 because this would affect intermittent addresses within a range in an
impractical manner. The same rule applies across the octets. For example, if you
have zeroes in the third octet, then all of the fourth octet must be zeroes.
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Ports
Security issues with ports
The settings of port numbers become important when the CPU IP is situated
behind a network firewall. In order for a remote VNC viewer or web browser
to make contact with your CPU IP, it is necessary for the firewall to allow
communication through a particular numbered port to occur.
then think of ports as extension numbers. In a company of any size, you
generally wouldn’t expect the accounts department to share the same telephone
with the technical department. Although their calls may all be related to the
same company, they concern very different aspects of that company.
One specific function of firewalls is to restrict access to ports in order to prevent
malicious attackers using them as a route into your network. Every new port
that is opened offers a new possibility for hackers and so the number of
accessible ports is purposefully kept to a minimum. In such cases, it may be
advantageous to change one or both CPU IP ports to use the same number. The
other alternative is to place the CPU IP unit outside the firewall and take full
It is the same with IP network connections. Although you have only one network
link into your computer and only one IP address (phone number), you are
probably performing many different tasks through that one link, often at the
same time. Thus, when you browse the web your outgoing requests and the
incoming information are all channelled through port 80. When you send an
email, it travels through port 25 and when you transfer files you are, without
knowing it, using port 20.
IMPORTANT: The correct configuration of routers and firewalls requires advanced
networking skills and intimate knowledge of the particular network. LINDY
cannot provide specific advice on how to configure your network devices and
strongly recommend that such tasks are carried out by a qualified professional.
At the “border crossing” between the wider Internet and every local network
attached to it, there is a router that is usually combined with a firewall. One of
its main tasks is to direct incoming traffic to the correct place within its local
network. A key piece of information to help it do this is the port number:
User with VNC viewer accesses
IP address: 129.7.1.10 (this
automatically uses port 5900).
User accesses the company
website at: 129.7.1.10 (this
automatically uses port 80).
Internet
Router/firewall address: 129.7.1.10
Router is programmed to send port 5900
VNC traffic to local address 192.168.0.3
and port 80 web traffic to local address
192.168.0.42
IP
Access Switch Plus
Web server
LOC REM VNC 100 LNK PWR
Web server has the local
IP address: 192.168.0.42
CPU IP has the local IP
address: 192.168.0.3
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Appendix 7 – Cable and connector specifications
CPU IP to power switch cable
RS232 serial mouse to PS/2 converter cable
6pin mini-DIN
female
9pin D-type
female
9pin D-type female
4pin RJ10
NC
CLK
DAT
TXD
GND
+5V
-12V
5
1
2
3
4
6
1
2
5
4
6
7
3
8
9
DCD
RXD
GND
DTR
DSR
RTS
Power switch to power switch daisy chain cable
TXD (-12V)
CTS
Female
5
3
4pin RJ10
4pin RJ10
6
NC
NC
4
RI
1
2
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Appendix 8 – Hotkey sequence codes
These codes are used when defining hotkey switching sequences for host
computers and allow you to include almost any of the special keys on the
keyboard.
Main control keys
|
|
|
|
|
|
|
|
|
Backspace Tab Return Enter Ctrl Alt Win Shift LShift RShift
|
|
|
|
|
|
|
|
|
LCtrl RCtrl LAlt AltGr RAlt LWin RWin Menu Escape Esc
Math operand keys
|
|
Add Subtract Multiply
Central control keys
|
|
|
|
|
Insert Delete Home End PageUp PageDown
|
|
|
|
|
|
Up Down Left Right Print ScrollLock Pause
Keypad keys
|
|
|
|
KP_Insert KP_Delete KP_Home KP_End KP_PageUp
|
|
|
|
|
KP_PageDown KP_Up KP_Down KP_Left KP_Right KP_Enter
|
|
|
KP_Add KP_Subtract KP_Divide KP_Multiply
KP_0 to KP_9
Function keys
|
|
|
|
|
|
|
|
|
|
|
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12
Codes with special meanings
+ means press down the following key
–
means release the following key
* means wait 250ms
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Other products in the CPU Switch range
Safety information
The following related LINDY CPU Switch items are available:
• For use in dry, oil free indoor environments only.
• Warning - live parts contained within power adapter.
• No user serviceable parts within power adapter - do not dismantle.
• Matrix CPU Switch Dual Junior 2 user, 8 computer
(part number: 32351)
• Matrix CPU Switch Dual Junior 2 user, 16 computer
(part number: 32352)
• Plug the power adapter into a socket outlet close to the module that it is
powering.
• Matrix CPU Switch Dual Pro 2 user, 4 computer
• Matrix CPU Switch Dual Pro 2 user, 8 computer
• Matrix CPU Switch Quad Pro 4 user, 16 computer
(part number: 32361)
(part number: 32362)
(part number: 32364)
• Replace the power adapter with a manufacturer approved type only.
• Do not use the power adapter if the power adapter case becomes damaged,
cracked or broken or if you suspect that it is not operating properly.
• If you use a power extension cord with the CPU IP, make sure the total
ampere rating of the devices plugged into the extension cord does not
exceed the cord’s ampere rating. Also, make sure that the total ampere
rating of all the devices plugged into the wall outlet does not exceed the
wall outlet’s ampere rating.
• Extender Junior - remote unit
• Extender Plus - remote unit
• Extender Pro - remote unit
• C5 Extender Junior - remote unit
(part number: 32391)
(part number: 32396)
(part number: 32392)
(part number: 39391)
• Do not attempt to service the CPU IP yourself.
Safety considerations when using power switches with CPU IP
• Follow the manufacturer’s instructions when setting up and using power
switching products.
• Always ensure that the total ampere rating of the devices plugged into the
power switching product does not exceed the power switching product’s
ampere rating. Also, make sure that the total ampere rating of all the
devices plugged into the wall outlet does not exceed the wall outlet’s
ampere rating.
Warranty
LINDY warrants that this product shall be free from defects in workmanship
and materials for a period of three years from the date of original purchase. If
the product should fail to operate correctly in normal use during the warranty
period, LINDY will replace or repair it free of charge. Any faulty items are to
be returned to LINDY at the owner’s expense. No liability can be accepted for
damage due to misuse or circumstances outside LINDY’s control. Also, LINDY
will not be responsible for any loss, damage or injury arising directly or indirectly
from the use of this product. LINDY’s total liability under the terms of this
warranty shall in all circumstances be limited to the replacement value of this
product. This warranty goes on top of any applicable legal regulation and does
not limit any customer rights compared to the legal regulations.
General Public License (Linux)
The CPU IP runs an embedded version of the Linux operating system, licensed
under the GNU General Public License. To obtain the source code for the open-
source components of the system visit:
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Radio Frequency Energy
A Category 5 (or better) twisted pair cable must be used to connect the CPU
IP units in order to maintain compliance with radio frequency energy emission
regulations and ensure a suitably high level of immunity to electromagnetic
disturbances.
All other interface cables used with this equipment must be shielded in order
to maintain compliance with radio frequency energy emission regulations and
ensure a suitably high level of immunity to electromagnetic disturbances.
FCC Compliance Statement (United States)
European EMC directive 89/336/EEC
This equipment generates, uses and can radiate radio frequency energy
and if not installed and used properly, that is, in strict accordance with the
manufacturer’s instructions, may cause interference to radio communication.
It has been tested and found to comply with the limits for a class A computing
device in accordance with the specifications in Subpart J of part 15 of FCC rules,
which are designed to provide reasonable protection against such interference
when the equipment is operated in a commercial environment. Operation of this
equipment in a residential area may cause interference, in which case the user at
his own expense will be required to take whatever measures may be necessary
to correct the interference. Changes or modifications not expressly approved by
the manufacturer could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a class
A computing device in accordance with the specifications in the European
standard EN55022. These limits are designed to provide reasonable protection
against harmful interference. 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 or television reception.
However, there is no guarantee that harmful interference will not occur in a
particular installation. If this equipment does cause interference to radio or
television reception, which can be determined by turning the equipment on
and off, the user is encouraged to correct the interference with one or more
of the following measures: (a) Reorient or relocate the receiving antenna. (b)
Increase the separation between the equipment and the receiver. (c) Connect
the equipment to an outlet on a circuit different from that to which the receiver
is connected. (d) Consult the supplier or an experienced radio/TV technician for
help.
Canadian Department of Communications RFI statement
This equipment does not exceed the class A limits for radio noise emissions from
digital apparatus set out in the radio interference regulations of the Canadian
Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant
les limites applicables aux appareils numériques de la classe A prescrites dans
le règlement sur le brouillage radioélectriques publié par le ministère des
Communications du Canada.
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© 2004 LINDY Electronics Limited & LINDY Elektronik GmbH
All trademarks are acknowledged.
Release 1.0c
Documentation by:
October 2004
Great Britain & N. Ireland
LINDY Electronics Ltd
Sadler Forster Way
Teesside Industrial Estate
Thornaby
International & Eire
LINDY International Ltd.
Sadler Forster Way
Teesside Industrial Estate
Thornaby
North America
LINDY Computer Connection Technology, Inc.
16214 Phillips Road
Athens, AL 35613
USA
Stockton-on-Tees
TS17 9JY
United Kingdom
Stockton-on-Tees
TS17 9JY
United Kingdom
Email: [email protected]
Tel: (256) 771-0660
Fax: (256) 771-0460
Email: postmaster@lindy.co.uk
Tel: 01642 754000
Fax: 01642 765274
Email: postmaster@lindy.com
Tel: +44 (0) 1642 754020
Fax: +44 (0) 1642 754029
Germany
France
Italia
Schweiz/Suisse/Svizzera
LINDY-Elektronik AG
Florenzstrasse 9
LINDY-Elektronik GmbH
Markircher Str. 20
68229 Mannheim
Deutschland
LINDY FRANCE SA
6 Rue RAPP
CS31015
67451 MUNDOLSHEIM
CEDEX
LINDY Italia Srl
Via Varesina, 126/B
22079 - Villa Guardia (CO)
Italia
CH 4023 Basel
Email: info@lindy.ch
Tel. 061 - 3359700
Fax 061 - 3359709
Email: info@lindy.de
Tel: 0621 - 470050
Fax: 0621 - 4700530
Email: italia@lindy.it
Tel: 031 48 40 11
Fax: 031 48 06 52
France
Email: france@lindy.fr
Tel: 0 825 825 111
Fax: 03 88 20 57 74
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Index
C
D
Host computer
connecting 7
Hotkeys
Hot keys
changing 34
HTTP port
K
A
Calibrate
Date
DHCP
Dial up
Keyboard codes
sending 28
Access control
configuration 49
Access mode
Account
Address
explanation 53
Addressing
mouse 27
screen 27
Keyboard Layout
Keyboard layout
KVM switch
Calibrate all
Clear IP access control
Client IP
COM1
connection 9
COM2
connection 10
Connections
connecting 7
L
connection 30
DNS 18
Admin password
Advanced unit configuration
Artifacts
Assistance
Local network
connection 17
Logging 52
E
I
Indicators 4
Initialize port
Init string
IntelliMouse 14
IP address
explanation 53
connecting 8
F
Firewall 17
Firmware
M
ISDN 9
keyboard 8
local 22
modem 9
monitor 8
mouse 8
remote 23
upgrade 21
Full screen mode
Mask
explanation 53
Menus
B
local 33
remote 44
Baud rate
G
Binary
Brackets 5
fitting 6
Menu bar
Menu key
changing 40
Modem
connecting 9
Mounting 6
Gateway
Controls
H
Control menus
Control strings
Browser
connection 24
Hosts
ISDN
connecting 9
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Mouse
R
U
Reset
Restore Defaults
Router 17
Unit name
Upgrade
firmware 21
Username
Use DHCP
N
Network port
connecting 8
explanation 53
O
S
V
Octets
Screen
VNC port
navigation 25
Screensaver
P
Password
unknown 15
Port number
entering 30
connecting 10
Power strings
Serial port
Server IP
Setup procedure
Shared
Slow connections
VNC viewer
connection 24
download 30
W
Power supply
connecting 9
Warranty 59
Web browser
connection 24
Power switching
configuration 20
Private
T
Z
Time
Troubleshooting 32
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