LINDY CPU SWITCH
DUAL JUNIOR
MANUAL
LINDY Part.No. 32351 LINDY CPU Switch Dual Junior 8 Port
LINDY Part.No. 32352 LINDY CPU Switch Dual Junior 16 Port
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About this manual
LINDY CPU Switch Dual Junior - Installation and Use
First edition (February 2002) www.LINDY.com (c) 2002 LINDY
LINDY CPU Switch Dual Junior 8 Port Part No. 32351
LINDY CPU Switch Dual Junior 16 Port Part No. 32352
All rights reserved. Whilst every precaution has been taken in the preparation of this
manual, LINDY assumes no responsibility for errors or omissions. Neither is any
liability assumed for damages resulting from the use of the information contained
herein. We reserve the right to change the specifications, functions and circuitry of
the product without notice. All trademarks acknowledged.
For electronic PDF vers ions of this manual in other
languages pleas e check the LINDY webs ite:
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Safety information
For use in dry, oil free indoor environments only.
Do not attempt to service the LINDY CPU Switch Dual Junior yourself.
Follow all warnings and instructions marked on the LINDY CPU Switch Dual
Junior, its power adapter and its accessories.
Warning - live parts contained within power adapter.
No user serviceable parts within power adapter - do not dismantle.
Plug the power adapter into a socket outlet close to the LINDY CPU Switch Dual
Junior.
Replace the power adapter with a manufacturer approved type only.
Do not use power adapter if 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 LINDY CPU Switch Dual Junior, 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.
Warranty
LINDY warrants that this product shall be free from defects in workmanship and
materials for a period of 3 years from the date of original purchase. If the product
should fail to operate correctly in normal use during the warranty period, LINDY will
either repair it free of charge, or, at LINDY's discretion, replace it free of charge. 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. If any difficulty is experienced in the installation or use of this
product that you are unable to resolve, please contact your supplier.
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Radio Frequency Energy
Shielded cables must be used with this equipment to maintain compliance with radio
frequency energy emission regulations and ensure a suitably high level of immunity
to electromagnetic disturbances.
European EMC directive 89/336/EEC
FCC Compliance Statement (United States )
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 s tatement
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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Contents
1. Introduction ..................................................................................... 6
1.1 Key features and benefits .......................................................................7
1.2 LINDY CPU Switch Dual Junior package contents .................................9
1.3 LINDY Dual Junior rackmount kit for model 32351.................................9
1.4 LINDY Dual Junior rackmount kit for model 32352.................................9
1.5 Product information ................................................................................10
2. Ins tallation ....................................................................................... 12
2.1 What you will need .................................................................................12
2.2 Mounting the LINDY CPU Switch ..........................................................13
2.3 Connecting your devices .......................................................................14
2.4 Configuring your PCs .............................................................................15
2.5 Structuring your LINDY CPU Switch Dual Junior installation .................15
2.6 Maximising the video quality ..................................................................20
2.7 Other useful installation information ......................................................21
2.8 Re-enabling a disconnected PS/2 mouse ..............................................21
2.9 Hot plugging the LINDY CPU Switch into running systems and
re-enabling disconnected PS/2 CPU mouse connections .....................22
2.10 Connecting the LINDY Extender ..........................................................23
3. Configuring the LINDY CPU Switch ............................................. 24
3.1 Configuration summary...........................................................................24
3.2 Enabling password security....................................................................25
3.3 Setting an ADMIN password...................................................................26
3.4 Creating and editing user accounts .......................................................27
3.5 Creating and editing computer names ....................................................27
3.6 Setting the SETUP OPTIONS and GLOBAL PREFERENCES ...............31
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4. Us ing the LINDY CPU Switch Dual J unior .................................. 38
4.1 Rear panel special function switches ......................................................38
4.2 Power supply connections and indicators ..............................................38
4.3 USER display and key switch .................................................................38
4.4 COMPUTER display and key switch.......................................................39
4.5 Activity indicators ...................................................................................40
4.6 Selecting a computer using the front panel controls ...............................40
4.7 Logging on to the LINDY CPU Switch Dual Junior .................................41
4.8 Keyboard hotkeys ..................................................................................42
4.9 Selecting computers using the mouse ....................................................45
4.10 Selecting computers using the on-screen menu...................................46
4.11 The reminder banner ...........................................................................50
4.12 Setting the USER PREFERENCES ......................................................51
4.13 Using the FUNCTIONS menu...............................................................52
4.14 Querying the routing status ..................................................................53
4.15 Cascading LINDY CPU Switches ........................................................53
4.16 Resetting user port keyboards and mice .............................................54
4.17 Using the LINDY extender ...................................................................55
4.18 What to do if you forget your ADMIN password ...................................55
4.19 Saving and restoring the menu configuration to and from an Excel
compatible spreadsheet........................................................................56
4.20 Switching channels by sending RS232 data .........................................58
5. Upgrading the LINDY CPU Switch's firmware ............................ 63
Appendices
A - Cable and connector specifications .................................................................59
B - Problem solving ...............................................................................................67
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1. Introduction
Thank you for purchasing the LINDY CPU Switch Dual Junior. Your LINDY CPU
Switch Dual Junior is a very high performance Keyboard, Video monitor and Mouse
(KVM) sharing device which supports a wide range of PC hardware and software
platforms. The LINDY CPU Switch Dual Junior supports multiple users and enables
each user to independently access the connected computers.
An On-Screen-Display (OSD) menu system is provided for easy computer selection
and control. This enables users to select computers by name or description without
having to remember the port that the computer is physically connected to. The OSD
menu system also provides a security structure that enables the system
administrator to allocate access rights to each user on a login basis.
We trust that you will be delighted with the function of your new LINDY CPU Switch
Dual Junior. We are always interested to hear any suggestions that you may have
for additional features or functionality (email to: postmaster@lindy.co.uk). Product
enhancement upgrades are provided free of charge during the warranty period and
benefits that are offered by your LINDY CPU Switch Dual Junior are listed in section
1.1
LINDY explains :
What does KVM s tand for?
Throughout this manual the abbreviation KVM is used to refer to the combination of
a Keyboard, Video monitor and Mouse that is used to access a computer. A KVM
console usually consists of a keyboard, monitor and mouse although sometimes
only a keyboard and monitor may be used. Devices such as the LINDY CPU Switch
Dual Junior are generally known as KVM sharers or KVM switches.
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1.1 Key features and benefits
Enables many computers to be independently controlled by two users.
On-screen menu allows computers to be selected by name or description.
Configurable security enables administrator to assign access rights to users.
Two independent users are supported on all models.
Advanced On-Screen Display (OSD) for easy control and configuration.
Channel switching by OSD, front panel key, keyboard hotkey, or 3 button mouse.
Supports high bandwidth monitors at resolutions up to 1920 x 1440.
Fully flash upgradeable via the serial port.
Supports a very wide range of software including Windows 3.X, WFWG, 95, 98,
2000, NT, ME, XP, DOS, Unix, Linux, NetWare, OS/2, BSD etc.
Video channels support Display Data Channel (DDC/DDC1/DDC2) signalling.
Supports desktop and laptop PCs, RS6000s, DEC Alphas, and Silicon Graphics
computers.
Front panel "healthy voltage" indicator.
Support for up to 16 user access profiles and 512 named computers.
The colours and position of the OSD menu may be changed by each user.
OSD routing status window shows the computers that are currently being
controlled by the KVM consoles.
Supports three computer control modes - Exclusive, Shared and Video Only.
Optional small-sized reminder banner permanently confirms the selected
computer.
Compact 1U (8 port) and 2U (16 port) cases may be neatly fitted under a monitor
or fixed into a 19 inch rack using the rack-mount kit.
SmartBoot ensures reliable simultaneous bootup of all computers.
User and computer name information may be uploaded to a PC and saved in an
Excel compatible file. This file may be edited in Excel and downloaded back to the
LINDY CPU Switch.
Mixed AT/PS2 keyboards and PS2/RS232 mice supported as standard.
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Can be cascaded to a depth of four levels to provide a video switching network.
Automatically restores keyboard and mouse states when channel changed.
Supports keyboard modes 1,2 and 3 and mouse prompt and stream modes for
maximum compatibility.
Includes screen saver, auto-scan and name search options.
Supports moving or blank screen savers and auto-logout on screen save option.
Wheel mouse may be used to launch and operate the OSD menus.
User may select English, French or German OSD menus.
Supports user definable hotkeys and mouse modes.
Positive confirmation of selected ports on local and cascaded LINDY CPU
Switches achieved by full acknowledgement signalling across all cascaded units.
Supports Microsoft IntelliMouse, IntelliMouse Explorer and other common wheel
mice.
Supports keyboards with extra Internet and audio function keys because the
keyboard data is kept in its native format.
Mouse restoration functions to enable ‘hot plugging’ of certain systems.
Front panel controls may be locked for secure operation.
Individual power-down reset of user ports enables hot-swapping of KVM consoles.
Standard colour-coded cable connections make installation easy and inexpensive.
Auto-scan list feature enables scanning of selected computers.
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1.2 LINDY CPU Switch Dual J unior package contents
LINDY CPU Switch Dual Junior.
Power supply suitable for your country.
6 x stick on self-adhesive rubber feet.
This installation guide.
1.3 LINDY CPU Switch Dual J unior rackmount kit for model 32351
(part code 32285)
2 x mounting brackets for fixing the unit into a 19 inch rack.
4 x screws for fixing mounting brackets to LINDY CPU Switch Dual Junior.
1.4 LINDY CPU Switch Dual J unior rackmount kit for model 32352
(part code 32295)
2 x mounting brackets for fixing the unit into a 19 inch rack.
6 x screws for fixing mounting brackets to LINDY CPU Switch Dual Junior.
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1.5 Product information
Fig. 1 - LINDY CPU Switch Dual J unior models
32351 and 32352 viewed from the front
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Fig. 2 - LINDY CPU Switch Dual J unior models
32351 and 32352 viewed from the rear
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2. Ins tallation
LINDY explains :
Flexible configuration
The LINDY CPU Switch Dual Junior has many ports for connection to computers,
keyboards, mice and monitors. There are no restrictions placed upon which ports
are connected to devices and you can leave any of the ports disconnected if you
wish. You do not need to connect a keyboard, monitor and mouse to each user port
if you do not wish to use all of these. You may perhaps decide to connect just a
keyboard and monitor or you may decide to connect to just one user port. All of
these configurations are supported. What's more, your devices do not all need to be
of the same type. You may wish to use a large high-resolution monitor with an
extended keyboard and a wheel mouse on one user port and a smaller monitor with
a basic mouse and keyboard on another. The LINDY CPU Switch Dual Junior
intelligently handles these mixtures of devices.
2.1 What you will need
For the computer connections you will need:
Cables to connect the LINDY CPU Switch Dual Junior to each of your computer
keyboard, video and mouse ports. Cable specifications are given in appendix A.
LINDY 3-in-1 keyboard / video / mouse combination cables are particularly
recommended for neatness, convenience and video quality. (You do not need to
connect a mouse cable if you are not using the mouse).
A suitable mouse driver for your PCs. Supported types are:
- PS/2 or RS232 two button mouse driver (any manufacturer).
- Microsoft mouse driver (including IntelliMouse).
- Logitech mouse driver (including two button, three button and wheel mouse).
- General mouse drivers that are supplied with the operating system.
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For the us er port connections you will need:
A monitor with a standard VGA-style 15-pin analogue video connector that will
work when connected directly to each of your PCs. LINDY CPU Switch Dual Junior
supports low and high resolution monitors.
A PS/2 or AT style keyboard. If you are using an AT keyboard with a 5-pin
connector you may connect this to the LINDY CPU Switch Dual Junior using a
standard AT to PS/2 keyboard adapter. LINDY CPU Switch Dual Junior supports
standard keyboards and keyboards with extra media control and Internet navigation
keys.
A PS/2 style two or three button Microsoft or Logitech compatible mouse or a
Microsoft IntelliMouse compatible mouse. If you wish to use the mouse to switch the
LINDY CPU Switch's channel then you will need a three button mouse or an
IntelliMouse.
(The LINDY CPU Switch supports ‘Internet / scroll mice’ that are compatible with the
Microsoft IntelliMouse. These are fitted with a wheel or other scroll control and
sometimes have additional buttons. Examples are: Microsoft IntelliMouse, Logitech
Pilot Mouse+, Logitech MouseMan+, Genius NetMouse and Genius NetMouse Pro.)
Us e of PS/2 and RS232 s tyle mice with the LINDY CPU Switch - All of the mouse
connections from LINDY CPU Switch to PCs support either a PS/2 or an RS232
mouse. LINDY CPU Switch automatically converts from the PS/2 mouse commands
to RS232 serial mouse commands. Serial mice types are selected by using an
adapter as described in Appendix A. The LINDY CPU Switch will operate without a
mouse connected if you do not wish to use one.
2.2 Mounting the LINDY CPU Switch
The LINDY CPU Switch Dual Junior has been designed to be used either on a
desktop or mounted in a 19 inch rack. If the LINDY CPU Switch is to be used on a
desktop then you will need to stick the supplied self-adhesive rubber feet to the
underside of the LINDY CPU Switch. If the LINDY CPU Switch is to be mounted in a
19 inch rack then you will need to fit the rack mounting brackets to the side of the
LINDY CPU Switch. Do this using the brackets and screws provided.
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2.3 Connecting your devices
Ensure that the power is disconnected from the LINDY CPU Switch and all devices
which are to be attached. Connect any keyboards, monitors and mice to the user
port connectors at the rear of the LINDY CPU Switch (see figure 2). The individual
connectors are colour coded for your convenience. If you are connecting several
KVM (Keyboard, Video monitor, Mouse) sets then you do not need to use the same
brands or mix of devices on each user port.
Next connect each computer system unit in turn with the keyboard cable, mouse
cable and video cable. LINDY 3-in-1 keyboard/video/mouse cables are
recommended for maximum convenience and video quality. Remember that the
video quality is maximised if the cables are kept as short as possible. Where
possible, 2 metre cables are recommended as these will give very high video
quality. Any unused computer connections can be left unconnected. To connect
computers with serial mouse connections and AT style keyboard connections use
the adapters specified in appendix A. If you have an existing 6-pin mini-DIN to 9-pin
serial adapter that came with a mouse it may not be suitable for use with the LINDY
CPU Switch as the are several different standard wiring configurations for these
adapters. Suitable serial adapters are available from LINDY (see appendix A)
The LINDY CPU Switch is now ready for connection to the mains using the mains
power adapter supplied. It is important to apply power to the LINDY CPU Switch
first, then power on the monitor and each of the computers in turn. Failure to switch
the LINDY CPU Switch and computers on in the correct order can lead to the mouse
and/or keyboard not being recognised by the computers when they are switched on.
There is no ON/OFF switch and the LINDY CPU Switch will start to operate as soon
as the power is applied.
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2.4 Configuring your PCs
Configure your PC in the same way that you would if your keyboard, mouse and
monitor were all connected directly to your PC, but bearing in mind the following
point:
LINDY CPU Switch emulates Microsoft compatible serial, IntelliMouse and PS/2
mice, so ensure that your PC software is configured for a Microsoft mouse of the
correct type. Refer to the list of supported drivers in section 2.1.
2.5 Structuring your LINDY CPU Switch Dual J unior ins tallation
A single LINDY CPU Switch Dual Junior 16 PORT may be used to manage and
control up to 16 computers (see figure 3). For larger numbers of computers, Dual
Junior units may be cascaded in a tree structure to form a video switching network
(see figure 4). The LINDY CPU Switch unit at the top of this tree structure is
normally used to control all the cascaded LINDY CPU Switches although other
configurations are possible.
The LINDY CPU Switch Dual Junior is fitted with an intelligent communication
system that enables it to detect and communicate with other LINDY CPU Switches
so that it is able to positively verify that all the cascaded LINDY CPU Switches have
correctly responded to a switching request from the user. The LINDY CPU Switches
communicate with each other via the keyboard cables.
LINDY CPU Switch Dual Junior may be cascaded in a very flexible manner. Either 1
or 2 links may be made between cascaded LINDY CPU Switches. The number of
independent users supported by the system is determined by the number of
cascade links that have been installed. If two cascade links are made then two users
have simultaneous access to ports on the cascaded LINDY CPU Switches. The
LINDY CPU Switch intelligently manages the cascade links and allocates them on a
first come first served basis rather like a telephone network.
LINDY CPU Switch Dual Junior may also be cascaded to single user LINDY CPU
Switch OSD products with the restriction that the LINDY CPU Switch OSD units
must be on the last layer of the tree and that no further units are cascaded off these.
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When cas cading LINDY CPU Switch Dual J unior keep in mind the following
rules
The maximum number of layers in a LINDY CPU Switch Dual Junior cascade is
four.
You may cascade Dual Junior units with 1 or 2 KVM links. The number of KVM
links that you install defines the number of simultaneous uses that are supported.
Keep all cascade cables as short as possible. The video quality is maximised by
using the shortest possible total cable run from computer to KVM.
If you are making multiple cascade links between LINDY CPU Switch Dual Junior
then ensure that the cables are approximately the same length.
LINDY CPU Switch OSD devices may be cascaded to Dual Junior cascades but
the OSD units must always be on the lowest level of the cascade (in other words
you must not cascade a Dual Junior device off an OSD device)
LINDY CPU Switch models 32351 and 32352 may be cascaded together.
You must choose groups of cascade ports from the following table. When you
cascade using a group of ports the system will allocate the first available free port
in that group (see section 4.10 and 4.15 for more details)
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The following diagrams show some typical LINDY CPU Switch Dual Junior
installations.
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Fig. 3 - A typical ins tallation us ing a s ingle
LINDY CPU Switch Dual J unior 32351
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Fig. 4 - A cas caded application us ing multiple
LINDY CPU Switch Dual J unior units
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2.6 Maximis ing the video quality
The LINDY CPU Switch Dual Junior supports very high bandwidth video signals and
resolutions up to 1900 x 1440 pixels. It regenerates the video signals using
wideband amplifiers in order to minimise any loss of video quality. All video cables
introduce distortion onto the video signal. For short cables this is minimal but for
longer cables the loss of quality can start to become noticeable particularly at higher
video resolutions. To maximise the video quality of your LINDY CPU Switch Dual
Junior installation we recommend the following:
Use the shortest possible video cables between your devices. High quality two
metre long cables such as the LINDY 3-in-1 combination cable will give excellent
results.
Avoid using cables with 15-pin D-type connectors that are not specifically
designed to carry video signals - you will see a picture but the quality will be truly
appalling with smudging, ghosting and loss of focus. Cables that are designed to
carry video signals are constructed using three separate co-axial cores to carry the
red, green and blue signals. These co-axial cores make the cable thick like the cable
that you see coming out of the back of a monitor. Typically this cable will be 8.5 to 9
mm in diameter. If your cable is thin (say 6mm in diameter) or does not look like the
cable you would expect to see coming out of a monitor then it may well be an
unsuitable 'data' cable. Such cables are only suitable for very low resolution DOS-
style screens.
Where possible use a single cable of the correct length rather than multiple
extension cables. If you must use an extension cable then make sure that it is a
cable that is specifically designed to carry video signals.
When cascading LINDY CPU Switches use the shortest possible cables between
units. Structure the installation so that the maximum cable run between computers
and KVMs is minimised. If possible keep this distance to below 30 metres (100 feet).
For longer distances use the LINDY extender.
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2.7 Other us eful ins tallation information
PC boot up s equence - When your PCs are powered on they communicate with
any attached keyboards and mice and setup parameters required by the particular
operating system. It is necessary for the LINDY CPU Switch to be attached and
powered on during this sequence so that it can give the required responses and
keep track of all the modes and settings requested by each of the connected PCs.
Mous e characteris tics - do not unplug a PS/2 mouse connection from a PC whilst
the PC is on. Due to the design of PS/2 mice communications the mouse function on
the PC will be lost and you will have to re-boot the PC to regain normal operation.
Unplugging the mouse from the LINDY CPU Switch will also cause it to stop
operating when it is plugged back in. RS232 mice can usually be unplugged and
plugged back in provided that a mouse was connected when the operating system
initially booted. The LINDY CPU Switch is fitted with a PS/2 mouse recovery system
which allows you to disconnect and re-connect the shared mouse without powering
down the system (although this is generally not advisable) - see section 2.8 for
details.
Keyboard and mous e mode s witching - The LINDY CPU Switch keeps a log of
the keyboard and mouse mode and resolution settings requested by each of the
connected PCs. These settings are automatically restored to the shared keyboard
and mouse when the LINDY CPU Switch channel is switched thus ensuring
maximum software compatibility. The keyboard num, caps and scroll lock states are
an obvious example of this process.
2.8 Re-enabling a dis connected PS/2 mous e
If you disconnect the shared PS/2 mouse from the LINDY CPU Switch by accident
during operation then the mouse operation will be lost when the mouse is plugged
back in. To avoid having to reboot the entire system in this situation the LINDY CPU
Switch is fitted with an automatic mouse recovery system.
With the PS/2 mouse disconnected, change the channel using the keypad or
keyboard hotkeys. The LINDY CPU Switch detects that the mouse has been
disconnected and triggers the automatic recovery system. Plug in the PS/2 mouse
and the LINDY CPU Switch will re-initialise it.
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Alternatively you can reset the keyboard and mouse for a given user port by using
the LINDY CPU Switch's keyboard and mouse reset function (see section 4.16).
This function only resets the keyboard and mouse attached to the selected user
port. It does not affect the status of any of the LINDY CPU Switch's other ports or
the CPU connections.
2.9 Hot plugging the LINDY CPU Switch into running s ys tems and
re-enabling dis connected CPU PS/2 mous e connections
It is advisable to switch off the systems that are going to be connected to the LINDY
CPU Switch before installation. However if this is not possible then most systems
can be hot plugged by using the LINDY CPU Switch’s mouse restoration functions.
The keyboard connection will normally restore itself automatically.
On many PCs, mouse movement will be lost if the PS/2 mouse is unplugged and
plugged back in whilst the PC is running. Mouse movement can then only be
restored by rebooting the PC. This is because the mouse drivers only setup and
enable the mouse when the PC is initially booted.
If you have switched off your LINDY CPU Switch or you are attempting to ‘hot plug’ it
into a system that is already running, you may be able to restore lost mouse
movement using the LINDY CPU Switch's mouse restoration functions.
Mous e res toration functions s hould be us ed with care as unpredictable
res ults may occur if the wrong mous e type is s elected. If in doubt res tore the
mous e by powering down the PC normally.
Standard PS/2 mouse data uses a different data format to IntelliMouse data and so
two reset functions are provided on the LINDY CPU Switch. The type of data format
expected by the PC depends upon the driver and the type of mouse that was
connected when the driver was booted. The following table may be used as a guide.
Note that the mouse reset functions predict the likely mouse resolution settings but
may not restore the speed or sensitivity of the mouse exactly as they were when the
PC originally booted.
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Type of mous e / s ys tem Driver type
Connected at bootup
Likely expected
data format
Sugges ted
res toration
PS/2
PS/2
PS/2 only
PS/2
Standard
Standard
Standard
IntelliMouse
IntelliMouse
PS/2
IntelliMouse / CPU Switch PS/2 only
IntelliMouse / CPU Switch IntelliMouse
PS/2
IntelliMouse
To restore lost mouse movement on a CPU connected to the LINDY CPU Switch:
1) Select the CPU that has lost its mouse movement
2) Activate the on-screen menu using the keyboard hotkeys
3) Press F1 to view additional menus
4) Select the FUNCTIONS menu
5) Select RESTORE STANDARD MOUSE or RESTORE INTELLIMOUSE
6) Exit the on-screen menu
2.10 Connecting a LINDY extender
You may connect external LINDY extenders (i.e. a receiver / transmitter pair) to the
LINDY CPU Switch's KVM connectors. If you do this then you should power the
LINDY extender using their optional power adapter.
LINDY extender requirements
Your LINDY extender unit will need to be fitted with firmware version 1.08 or higher if
it is a Pro Extender model or 2.08 or higher if it is a Junior model. If you have an
earlier LINDY extender unit please contact LINDY technical support for advice.
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3. Configuring the LINDY CPU Switch Dual
J unior
3.1 Configuration s ummary
The LINDY CPU Switch is configured using the on-screen menu system which is
activated by default when you first power on the system. It may also be accessed by
using the keyboard 'hotkeys' (see section 4.8) or by using the LINDY CPU Switch's
front panel keys (see section 4.6). The following steps summarise a typical
configuration process. For more advanced information on each of the configuration
steps please refer to the appropriate sections of this manual shown in brackets.
Note: The LINDY CPU Switch is configured via the ADMIN user account. The LINDY
CPU Switch will allow multiple users to be logged in under the ADMIN account but
will only allow one of these users to be adding or editing computer names or user
profiles or setting global and setup options at any one time.
Step 1 - Decide if you are going to us e pas s word s ecurity
The LINDY CPU Switch may be run with security enabled or disabled. With security
disabled, all user ports have full access to all of the computers and full
administration rights. The LINDY CPU Switch is shipped to you with security
disabled. This mode is suitable for simple installations with a small number of users.
Larger installations or systems with larger numbers of users will require password
security to be enabled. In this mode, each user logs on to the system and is
allocated access rights to defined computers by the system administrator. This
mode is recommended for most systems (see section 3.2 for details on how to
enable security). If you are not using security the go to step 4.
Step 2 - Create an ADMIN (adminis tration) account pas s word
The LINDY CPU Switch has a fixed user account that cannot be deleted named
ADMIN. This user account is the only one that is able to make important system
changes. If you are going to be using security then you should allocate a password
to this account (see section 3.3 for instructions).
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Step 3 - Create us er accounts
Login to the LINDY CPU Switch using the ADMIN account and add user profiles and
passwords for each of the system users (see section 3.4). The LINDY CPU Switch
supports up to 16 user profiles.
Step 4 - Add / edit names to identify your computers
Whilst you are logged into the LINDY CPU Switch using the ADMIN account, create
names for each of the computers that you have attached to the system. The LINDY
CPU Switch creates default names for each of its ports (Computer 1 to Computer
16). These default names may be edited as required. Whilst adding the computer
names you can define which users will have access to each computer. Each
computer has an associated 8 digit port number which defines its location. If you are
using a single LINDY CPU Switch Dual Junior then all the computers will have two
digit port numbers (01 to 16). If you are cascading LINDY CPU Switches then each
computer will have a four, six or eight digit port number depending on the number of
cascade levels that have been connected (see section 4.10 for details). The LINDY
CPU Switch supports up to 512 computer names although special versions are
available that support more names.
Step 5 - Set the required SETUP OPTIONS and GLOBAL PREFERENCES
Use the ADMIN account to select the required SETUP OPTIONS and GLOBAL
PREFERENCES. The SETUP OPTIONS menu is used to configure important
system operating parameters such as security mode, language, hotkeys and control
options. The GLOBAL PREFERENCES menu is used to select various timing
characteristics and other options.
3.2 Enabling pas s word s ecurity
The LINDY CPU Switch Dual Junior may be operated with or without security
enabled. With no security all users will have full administration rights and full access
to all the connected computers. For systems with several users this may not be
desirable. System security is enabled using the on-screen menu. The on-screen
menu is activated automatically when you first switch on the LINDY CPU Switch but
may also be selected using the keyboard hotkeys (see section 4.8) or the front panel
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controls (see section 4.6).
To switch on the password security system:
From the main on-screen menu press F1 for MORE MENUS.
Select SETUP OPTIONS from the menu.
Move the menu bar over the SECURITY option.
Press SPACE BAR to enable security.
Press ESC to quit from the menu.
3.3 Setting an ADMIN pas s word
The LINDY CPU Switch Dual Junior supports up to 16 user profiles. The
administrator of the system can grant or deny users access to any of the connected
computers and has complete control over the setup of the system. The administrator
accesses the system via a special user named ADMIN. This profile may not be
altered or deleted from the system and has full access rights to all computers and
system parameters. Consequently it is advisable to set a password for this user.
To set a password for the ADMIN user:
From the main on-screen menu press F1 for MORE MENUS.
Select EDIT USER LIST from the menu.
Move the menu bar over the ADMIN user.
Press RETURN or ENTER to edit the ADMIN user.
Press RETURN or ENTER again to edit the ADMIN user's password.
Make sure that the password you want is displayed.
Press RETURN or ENTER to save the password.
You will now see the "Edit Access Rights" menu. The ADMIN user always has
access to all the computers. Press RETURN or ENTER again to quit from this
menu.
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3.4 Creating and editing us er accounts
To create us er accounts :
Ensure that you are logged on as the ADMIN user.
From the main on-screen menu press F1 for MORE MENUS.
Select EDIT USER LIST from the menu.
Press INSERT to add a new user.
Type in the name of the new user and press RETURN or ENTER.
Type in the password for the new user and press RETURN or ENTER.
(You may leave the password field blank if you do not want to define a password)
Define the computers that you want this user to have access to using the SPACE
BAR and function keys as directed on the menu. The user will have access to all
the starred (selected) computers. Don't worry if all the computers have not yet
been defined. You can allocate users access to computers when you add the
computer names later.
Press RETURN or ENTER to create the user.
Follow a s imilar proces s to edit us ers :
In the EDIT USER LIST use the menu bar to select the user that you want to edit.
Press ENTER or RETURN to edit the user's name, password and access rights.
Press RETURN or ENTER if you want to keep the existing entries.
3.5 Creating and editing computer names
Computer names provide a very convenient way of selecting and identifying
computers that are attached to the LINDY CPU Switch Dual Junior. You can select
computers by port number (see sections 4.8 and 4.15) but when you have several
computers it becomes hard to remember which computer is attached to which port.
By defining descriptive computer names you can select the required computer from
an on-screen menu without having to remember which physical port the computer is
connected to. For each computer name that you define you can grant or deny
access to any of the defined users.
Each computer name that you define will have an associated port number. This is
the LINDY CPU Switch port that the computer is attached to. If all of your computers
are connected to a single LINDY CPU Switch Dual Junior then all the port numbers
will be two characters long (for example: 01, 02, 03, 16 etc.). If you are cascading
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LINDY CPU Switch Dual Juniors then the port numbers will be four, six or eight
characters long depending upon whether you have two, three or four levels of
cascade (see figure 7). See the end of this section and section 4.10 for an
explanation of how the port numbers are constructed. The LINDY CPU Switch Dual
Junior supports up to 512 computer names.
To create computer names :
Ensure that you are logged on as the ADMIN user.
From the main on-screen menu press F1 for MORE MENUS.
Select EDIT COMPUTER LIST from the menu.
Press INSERT to add a new computer name.
Type in the name of the computer and press RETURN or ENTER.
Type in the port number for this computer and press RETURN or ENTER.
Define the users that you want user to have access to this computer the SPACE
BAR and function keys as directed on the menu. The starred users will have
access to this computer. Don't worry if all the users have not yet been defined.
You can allocate computers to users when you add the users later.
Press RETURN or ENTER to create the new computer name.
When you are adding computers it is advisable to setup just one name for any
particular port. Avoid creating two names for the same port as this can lead to
confusion. Also, if you are using ports to cascade to other LINDY CPU Switches,
avoid setting up unique names for individual ports that form part of a group of ports
that are being used to cascade. For example, if you are using group 41 (ports 1,2,3
and 4) to cascade to another LINDY CPU Switch then avoid setting up individual
names for these ports.
Follow a s imilar proces s to edit computer names :
In the EDIT COMPUTER LIST use the menu bar to select the computer that you
want to edit. Press ENTER or RETURN to edit the computer's name or change the
users who you want to have access to this computer. Press RETURN or ENTER if
you want to keep the existing entries.
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Creating entries for computers connected to cas caded LINDY CPU Switches
You can cascade LINDY CPU Switch Dual Junior units using one or two KVM links.
Section 2.5 explains the rules that you must follow when installing a LINDY CPU
Switch cascade. The number of cascade links that you install determines the
number of simultaneous users that can access computers on the cascaded LINDY
CPU Switches. Ideally if you are cascading LINDY CPU Switch Dual Junior units
then you should use two cascade links as this will cause no blocking and will allow
both users simultaneous access to all computers.
Each computer name that you add to the on-screen menu has an associated port
number that tells the LINDY CPU Switch where to find the computer. Port numbers
for computers attached to a single LINDY CPU Switch are simply the port number
that the computer is attached to. Port numbers for computers connected to
cascaded LINDY CPU Switches are constructed by defining the port routing that is
required to get from the user's KVM to the computer.
Figure 5 illustrates how port numbers are constructed and how the physical
configuration of a cascaded system relates to entries in the on-screen menu. The
illustrated configuration is an unlikely configuration in practice but has been chosen
for explanation purposes. If you make multiple cascade links then they must be
connected to the groups of ports defined in figure 6. These ports have associated
group port numbers. The LINDY CPU Switch uses this group port number to
connect to the first available port in that group. For example, group port number 21
comprises of ports 1 and 2. If these ports are linked to a cascaded LINDY CPU
Switch and users try to connect to computers that are attached to the cascaded
LINDY CPU Switch, the system will allocate the cascade links to the first two users
on a first come first served basis.
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Fig. 5 - Creating menu entries for computers that are
connected to cas caded LINDY CPU Switches
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Fig. 6 - Pos s ible cas cade groups and their as s ociated names
3.6 Setting the SETUP OPTIONS and GLOBAL PREFERENCES
The SETUP OPTIONS and GLOBAL PREFERENCES are system operating
parameters that apply to the whole system rather than to individual users. These
may only be setup or changed by the system administrator logged in using the
ADMIN account. From the main menu press F1 for MORE MENUS. Use the cursor
keys to position the menu bar over SETUP OPTIONS or GLOBAL PREFERENCES.
Press ENTER or RETURN to view the individual menus. Use the cursor keys to
place the menu bar over the required option and then use SPACE BAR to change
the option as required. Press ESC to quit and save the changes.
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3.6.1 SECURITY
Accessed from menu: SETUP OPTIONS
Settings: DISABLED, ENABLED
With security disabled there is no requirement for users to login to the system. All
users have full access to all the connected computers and full administration rights.
With security enabled, users are required to login to the LINDY CPU Switch. Each
user is allocated access rights to computers by the system administrator and they
are only able to see the computers that they have access to on their on-screen
menu.
3.6.2 LANGUAGE
Accessed from menu: SETUP OPTIONS
Settings: ENGLISH, FRENCH, GERMAN
This option specifies the language that is used for the on-screen menu and the
keyboard layout that is assumed for the keyboard. When the French option is
selected the keyboard is assumed to have an AZERTY format. When the English
and German options are selected the keyboard is assumed to have a QWERTY
format. The new language settings are enabled when you quit from the SETUP
OPTIONS menu. The language option only affects the way that the LINDY CPU
Switch interprets the keyboard keys, it does not affect the way that the computers
interpret the keyboard. It is advisable to avoid setting a language that you do not
understand as all the menus will change to use the new language and you may have
difficulty reselecting your original language.
3.6.3 HOTKEYS
Accessed from menu: SETUP OPTIONS
Settings: CRTL+ALT, CTRL+SHIFT, ALT+SHIFT, ALT GR, LEFT ALT+RIGHT ALT,
LEFT CTRL+LEFT ALT, RIGHT CTRL+RIGHT ALT, DISABLED
The keyboard hotkeys are special combinations of keys that, when used together
with certain keyboard "command keys", perform special LINDY CPU Switch
functions. For example, pressing the hotkeys together with the "M" key will cause
the on-screen menu to be displayed on your monitor. Other hotkey combinations
allow you to query which computer you are connected to and to move the on-screen
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menu around the screen. You can also use the hotkeys together with the port
number to quickly select a chosen computer without activating the on-screen menu.
See section 4.8 for full details on using keyboard hotkeys to control the LINDY CPU
Switch. We do not normally recommend that you disable the hotkeys but if you
choose to do this then you will need to access the on-screen menu using the LINDY
CPU Switch's front panel controls.
3.6.4 KEYPAD CONTROLS
Accessed from menu: SETUP OPTIONS
Settings: ENABLED, DISABLED
The key controls on the front of the LINDY CPU Switch may be disabled so that it is
only possible to select the special channels "o" and "0" (the on-screen menu and the
non-existent channel zero).
3.6.5 EXCLUSIVE USE
Accessed from menu: SETUP OPTIONS
Settings: ALLOWED, DISABLED
In normal operation, the LINDY CPU Switch will allow two or more users to share
access to a computer. In this mode, the computer's video picture will be displayed
on all the user's monitors but only one user may have active control of the
computer's keyboard and mouse at any one time. The LINDY CPU Switch detects
an active user by looking for keyboard and mouse data. A user becomes inactive if
no keyboard or mouse data has been received by the LINDY CPU Switch for a
specified timeout period. Whilst one user is active all the other users that are
connected to the same computer will see a "video only" message displayed on their
screen.
There may be situations where particular users want to be able to control and view
their computers in private with exclusive use. The LINDY CPU Switch has the facility
to allow users to select exclusive use of computers but this facility should be used
with care. When exclusive use is requested the video from the selected computer is
only available to the user with exclusive access. Users that have selected exclusive
access are never timed out by the LINDY CPU Switch and so all other users are
effectively "locked out" until the exclusive user switches to another computer or logs
out. This could potentially be very irritating if a user has selected exclusive use and
has then left their desk without logging out. This would prevent other users from
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working on the computer until they came back. Consequently the system
administrator can disable all exclusive use so that all connections are shared.
3.6.6 AUTOMATIC LOGOUT
Accessed from menu: SETUP OPTIONS
Settings: DISABLED, ENABLED
The LINDY CPU Switch enables you to restrict access to your computers on a login
basis. If a user forgets to logout when they have finished accessing the LINDY CPU
Switch then the user console may unintentionally be left with full access to all the
computers. The LINDY CPU Switch may be set to automatically logout unattended
user consoles when the screen saver kicks in. This reduces the risk of security
problems by preventing user consoles remaining in a permanent “logged-in” state
when there is no keyboard or mouse activity. The automatic logout feature is only
enabled when the screen saver feature is active (i.e. not disabled).
3.6.7 MOUSE SWITCHING
Accessed from menu: GLOBAL PREFERENCES
Settings: ENABLED, DISABLED
Like most LINDY KVM switches, the LINDY CPU Switch Dual Junior's channel may
be switched using a three button mouse or IntelliMouse (see section 4.9). Pressing
the central button or wheel button together with the left hand mouse button will
cause the LINDY CPU Switch to switch to the next available computer. When mouse
switching is enabled the central mouse button or wheel mouse button is allocated to
control the LINDY CPU Switch and is not therefore available for use by computer
applications. If you want to use the central mouse button within your applications
you will need to disable mouse switching. The rotation action of an IntelliMouse
wheel is not affected and is always available to the computer application.
3.6.8 SCREEN SAVER
Accessed from menu: GLOBAL PREFERENCES
Settings: DISABLED; 2, 5, 7, 10,15, 20 & 30 MINUTES
To avoid burning out the phosphor on CRT monitor screens, the LINDY CPU Switch
can be set to blank the screen after no keyboard or mouse activity has been
detected for a selected timeout period. If preferred, the user can blank the screen
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manually by selecting channel '0' using the keyboard hotkeys or by pressing ESC
from the login screen.
3.6.9 AUTOSCAN MODE
Accessed from menu: GLOBAL PREFERENCES
Settings: SCAN LIST, ACTIVE PCs, ALL PCs
The LINDY CPU Switch supports an autoscan mode that automatically scans
between the connected computers in sequence. The LINDY CPU Switch supports
three autoscan modes. In the first mode the LINDY CPU Switch will scan all the
named computers that are defined in the autoscan list (SCAN LIST). The computers
defined in the scan list may be connected to cascaded LINDY CPU Switches. If you
wish to scan the ports on the current LINDY CPU Switch then you may select ALL
the available computers or just the available computers that are currently powered
on (the ACTIVE computers). Scanning just the active computers avoids blank
screens from being displayed and stops the monitor from going into a power down
state on every scan cycle.
WARNING - Many modern monitors are fitted with automatic power s ave
relays and will s witch off after a few s econds if connected to an inactive PC. If
you are us ing s uch a monitor you mus t not s et the LINDY CPU Switch to s can
ALL ports . Cons tant s witching on and off of your monitor's relay will
eventually damage your monitor. If you are us ing the SCAN LIST option then
you s hould ens ure that all the computers are active if you are us ing one of
thes e monitors .
If you choose to use the SCAN LIST option then you may define the computers to
be scanned in the following manner.
To define the autos can lis t
Ensure that you are logged on as the ADMIN user.
From the main on-screen menu press F1 for MORE MENUS.
Select EDIT AUTOSCAN LIST from the menu. A list of defined computers will
appear. The starred computers will be autoscanned during the autoscan cycle.
To add a computer to the autoscan list, move the selection bar over the computer
name and press SPACE BAR. To add all named computers press F1. To remove
all named computers press F2.
When all the computers that you wish to scan have a star to the right hand side of
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their name, press RETURN or ENTER to save the selections.
The selected computers will be autoscanned in alphabetical order when you
activate autoscan mode (when the SCAN LIST option is selected).
3.6.10 AUTOSCAN PERIOD
Accessed from menu: GLOBAL PREFERENCES
Settings: DISABLED; 2, 5, 7, 10, 15, 20, 30 SECONDS
The autoscan time defines the length of time that the LINDY CPU Switch will display
video from an autoscanned computer before changing to the next computer. If the
DISABLED setting is chosen then no autoscan functions will be available.
3.6.11 OSD DWELL TIME
Accessed from menu: GLOBAL PREFERENCES
Settings: 1, 2, 3, 5, 10 SECONDS
After a successful computer channel change the LINDY CPU Switch will display a
confirmation message for a few seconds. The length of time that this confirmation
message dwells on the screen may be changed. Options are 1, 2, 3, 5 & 10 secs.
3.6.12 USER TIMEOUT
Accessed from menu: GLOBAL PREFERENCES
Settings: 2, 5, 10, 30 SECONDS; 1, 5, 10 MINUTES
When two users are connected to the same computer only one can have access at
any one time. When no keyboard or mouse data has been received from the active
user port for the user timeout period the LINDY CPU Switch will allow other users to
access the computer. The new port then becomes the active port until it too times
out. To avoid confusion between users it is desirable to set the timeout period to be
sufficiently long so that user's work is not needlessly interrupted by other users and
sufficiently short to ensure good overall system efficiency. The user timeout value
also controls the timeout between the local and remote access points on user ports
1 and 3.
3.6.13 RS232 Mous e Type
Accessed from menu: GLOBAL PREFERENCES
Settings: INTELLIMOUSE, 2 BUTTON, 3 BUTTON
These setting control the type of RS232 mouse that the LINDY CPU Switch reports
to computers. All the necessary conversions are dealt with automatically with the
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LINDY CPU Switch. The IntelliMouse setting sends four byte mouse reports to the
computers and is therefore very slightly more sluggish than the others that send
three byte mouse reports. RS232 mice are almost always more sluggish than PS/2
types because the data rate is much slower.
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4. Us ing the LINDY CPU Switch Dual J unior
This section explains the general operation of the LINDY CPU Switch Dual Junior.
We recommend that you read this section before starting to use the product.
4.1 Rear panel s pecial function s witches
Before powering on the LINDY CPU Switch ensure that the two option switches on
the rear are set to the OFF (up) position. Option switch 1 is reserved for future use
and option switch 2 is used to enable firmware upgrades (see section 5).
4.2 Power s upply connections and indicators
Plug the power adapter into the power inlet. The power indicator on the front of the
LINDY CPU Switch (see figure 1) monitors the voltage that is being supplied to the
power inlet. If the power indicator is illuminated then a healthy power adapter is
connected.
4.3 USER dis play and key s witch
The USER key selects the user port that is shown on the green USER display (see
figure 1). Pressing the key will cause the green display to change to the next user
port in numerical sequence. When the USER display is changed, the red
COMPUTER display will also change to show the current connection status of the
new user port. LINDY CPU Switch Dual Junior models have 2 user ports.
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4.4 COMPUTER dis play and key s witch
The COMPUTER key selects the computer port that is to be connected to the user
port that is currently displayed on the green USER display (see figure 1). Pressing
the key will cause the red COMPUTER display to change to the next available
computer port in numerical sequence. The next available computer port is defined
by the way that the LINDY CPU Switch Dual Junior is configured.
There are two special computer ports that may be selected using the COMPUTER
key switch. These are the on-screen menu port 'o' and the non-existent channel
zero '0'. Selecting the on-screen menu port will cause the on-screen menu or the
login menu to be displayed. Selecting channel zero will cause the video to be
disabled and all keyboard and mouse activity to have no effect upon any of the
connected computers. These channels are provided as convenient places to 'park'
user ports that are not currently in operation.
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4.5 Activity indicators
The LINDY CPU Switch Dual Junior has a front panel activity indicator for each user
port (see figure 1). The indicator will flash when keyboard or mouse data is received
by the LINDY CPU Switch. These indicators provide a useful confirmation that the
keyboards and mice connected to the LINDY CPU Switch are functioning normally.
4.6 Selecting a computer us ing the front panel controls
To select a computer using the front panel controls, press the USER key until the
green USER display shows the user port number that your keyboard and mouse are
connected to. Then press the COMPUTER key until the red COMPUTER display
shows the computer that you wish to connect to. Pressing the computer key will
cause the computer channel to change to the next available port. If the password
security system has not been enabled then this will be the next highest channel
number in the sequence shown below. If password security has been enabled then
you will only be able to select the computer ports that you have access to. If the front
panel controls have been disabled by the administrator then you will only be able to
select the special channels 'o' and '0' (the on-screen menu / login screen or non-
existent channel zero).
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Action of the COMPUTER key if no security has been set and the front panel
controls are enabled
Action of the COMPUTER key if the front panel controls are enabled, security has
been set and the current logged in user only has access to computer ports 1,3 and 7
Action of the COMPUTER key if the front panel controls have been disable.
4.7 Logging on to the LINDY CPU Switch Dual J unior
If password security has been set on the system then the following login menu will
appear when the LINDY CPU Switch is switched on or when no user is currently
logged in. The previous user may have activated the screen save function (screen
blanking). If so, you may need to press a key before the login menu appears. Type
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in you user name and password to access the LINDY CPU Switch.
4.8 Keyboard hotkeys
LINDY CPU Switch Dual Junior can be conveniently controlled using special
keyboard hotkey combinations. These hotkey combinations can be used to select
computers and perform a number of other useful functions. All of the hotkey control
commands are invoked by holding down the hotkeys and then pressing a command
key. By default, the two hotkeys are ‘CTRL’ and ‘ALT’, although other combinations
can be selected by reconfiguring the hotkeys (see section 3.6.3). Once the hotkey
command has been activated you will need to release the hotkeys and the
command key before a new hotkey command is accepted by the LINDY CPU
Switch. HOTKEYs + TAB is an exception and this allows you to 'tab through' the
ports by holding down the hotkeys and repeatedly pressing TAB. HOTKEYs + the
cursor keys is also an exception. You can hold down the hotkeys and repeatedly
press the cursor keys to change the position of the on-screen menu.
The hotkey commands are summarised below (note that the numbers on the
numeric keypad do not form part of a valid hotkey). The hotkeys will only select the
requested channels if you have access rights to the requested channel.
Selecting computers using the hotkeys and the port number is most suitable for
systems with small numbers of computers. For systems with more computers it is
easier to use the on-screen menu for computer selection.
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‘HOTKEYs ’ and ‘1’ - selects channel 1
‘HOTKEYs ’ and ‘2’ - selects channel 2
‘HOTKEYs ’ and ‘3’ - selects channel 3
‘HOTKEYs ’ and ‘4’ - selects channel 4
‘HOTKEYs ’ and ‘5’ - selects channel 5
‘HOTKEYs ’ and ‘6’ - selects channel 6
‘HOTKEYs ’ and ‘7’ - selects channel 7
‘HOTKEYs ’ and ‘8’ - selects channel 8
‘HOTKEYs ’ and ‘9’ - selects channel 9
‘HOTKEYs ’ and ‘1 then 0’ - selects channel 10
‘HOTKEYs ’ and ‘1 then 1’ - selects channel 11
‘HOTKEYs ’ and ‘1 then 2’ - selects channel 12
‘HOTKEYs ’ and ‘1 then 3’ - selects channel 13
‘HOTKEYs ’ and ‘1 then 4’ - selects channel 14
‘HOTKEYs ’ and ‘1 then 5’ - selects channel 15
‘HOTKEYs ’ and ‘1 then 6’ - selects channel 16
(16 port models only)
(16 port models only)
(16 port models only)
(16 port models only)
(16 port models only)
(16 port models only)
(16 port models only)
(16 port models only)
‘HOTKEYs ’ and ‘TAB’ - selects the next available channel
‘HOTKEYs ’ and ‘M’ - displays the on-screen menu for selecting computers by name
(this is the recommended way of selecting computers for systems with more than 4
computers)
‘HOTKEYs ’ and ‘A’ - selects autoscan mode where each channel is displayed for
the selected time (see section 3.6.10). To cancel autoscan mode simply select any
fixed channel either by hotkey or by using the on-screen menu or the front panel
controls.
‘HOTKEYs ’ and ‘0’ – switches off the video signal. This will cause some monitors to
go into standby mode or switch off. The video signal can be re-enabled by selecting
a channel.
‘HOTKEYs ’ and ‘L’ - Logs out the user if password security has been enabled or
disables the video and selects the non-existent channel '0' if no security is set.
‘HOTKEYs ’ and 'the curs or keys ' - Moves the currently displayed on-screen menu
around the screen.
‘HOTKEYs ’ and ‘0 then {number}’ – (where {number} is 0,1,2,3,4,5,6,7,8 or 9).
Selects the channel specified by {number}. This allows ports on cascaded units to
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be selected. For example HOTKEYs + 0 10216 would select port 1 (01) on the
current LINDY CPU Switch, port 2 (02) on the next cascaded LINDY CPU Switch
and port 16 on the last LINDY CPU Switch.
Examples of common hotkey sequences (assuming CTRL + ALT hotkey option):
To select channel 2:
pres s ba ba
2
releas e
2
To 'tab through' channels:
pres s bavreleas e vpres s v
releas e vpres s vreleas e vba
To select channel 12 (on 16 port LINDY CPU Switch):
pres s ba
1
releas e
1
ba
2
pres s
2
releas e
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4.9 Selecting computers us ing the mous e
Computers may conveniently be selected using a three button mouse. In order to
switch to the next computer simply hold down the central mouse button (the wheel
mouse button on an IntelliMouse) and click on the left hand mouse button to select
the next computer. If password security has been set then the LINDY CPU Switch
will select the next available channel, otherwise it will select the next numerical
channel. Mouse switching may be enabled or disabled (see section 3.6.7). When
mouse switching is disabled the third button or wheel button state is ‘passed
through’ the LINDY CPU Switch and seen by the application software.
Selecting computers using the mouse is most suitable for systems with small
numbers of computers. For systems with more computers it is easier to use the on-
screen menu for computer selection.
Hold down centre button (
Press and release left hand button
) to select next computer
)
(
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4.10 Selecting computers us ing the on-s creen menu
You can conveniently select computers by name using the LINDY CPU Switch's on-
screen menu. For systems with many computers this is the recommended method
of computer selection. The on-screen menu is called up by pressing the ‘HOTKEYs’
and the ‘M’ key together. Its position on the screen may be moved using the
'HOTKEYs' and the cursor keys (see section 4.8)
For example, with the default hotkeys (CTRL + ALT) the key combination to launch
the on-screen menu would be:
pres s baMreleas e Mba
You may also use a 3-button mouse or wheel mouse to launch the on-screen menu
if you have enabled mouse control (see section 3.6.7). To do this, hold down the
central button or wheel button and click the right hand button.
Hold down centre button (
launch the on-screen menu
). Press and release left hand button (
) to
When the menu is first called up, a set of default names will be listed. You will
probably want to change these names to suit your computers (see section 3.5).
When you launch the on-screen menu you will see a screen similar to that shown
below.
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To connect to a computer, place the menu bar over the computer name using a
combination of the up and down cursor keys and the page up / page down keys.
You may also use the wheel on a wheel mouse to move the menu bar up and down
if you have enabled mouse control (see section 3.6.7).
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To select the computer with SHARED access press:
e
or
f
When a computer is selected in SHARED mode, the computer’s video picture will be
displayed on all the KVM consoles that are connected to that computer. Only one
user will have control of the computer’s keyboard and mouse at any one time. If no
keyboard or mouse activity has been detected for the timeout period (see section
3.6.12) then other KVM consoles may gain control.
To select the computer with EXCLUSIVE access press:
je
or
jf
When a computer is selected in EXCLUSIVE mode, the computer’s video picture will
only be displayed one the KVM console that has exclusive access. Other KVM
consoles will not be able to access the computer or view its video until the exclusive
user has selected another computer or logged out. This mode prevents other KVM
consoles from using the computer and so should be used with care.
To select the computer with VIDEO ONLY access press:
be
or
bf
When a computer is selected in VIDEO ONLY mode, the computer’s video picture
will be displayed on the KVM console’s monitor but the keyboard and mouse will not
control the computer. The “VIDEO ONLY” message will be displayed under the
confirmation banner if this has been enabled.
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You may also use a 3-button mouse or wheel mouse to select a computer if you
have enabled mouse control (see section 3.6.7).
To select a computer in SHARED mode use the left hand mouse button (
the menu bar is positioned above the required computer name. To escape without
selecting a new computer use the right hand mouse button.
) whilst
To select a computer in EXCLUSIVE mode, use the left hand mouse button together
with the SHIFT key on the keyboard. To select a computer in VIDEO ONLY mode
use the left hand mouse button together with the CTRL key on the keyboard.
If you have many connected computers then you can do an alphabetic search of the
list of computer names by pressing F3 and then entering the name that you want to
find.
When you select a computer the LINDY CPU Switch will briefly confirm the computer
that has been selected by displaying a message. There may be situations where the
selected computer cannot be accessed and in this case the LINDY CPU Switch will
display a error message and wait for the user to press ESC before continuing. The
LINDY CPU Switch may not be able to connect due to the following reasons:
The requested port is being accessed exclusively by another user.
There are no free cascade links available.
The requested port does not exist.
LINDY CPU Switch confirms a successful connection
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LINDY CPU Switch indicates an unsuccessful connection
4.11 The reminder banner
Normally the LINDY CPU Switch will display a discreet computer name reminder
banner that reminds you which computer you are connected to. This banner will
normally appear at the top of the screen in a central location and may optionally be
disabled (see section 4.12.2). Many computer screens can look very similar and so
this banner serves as a useful reminder of which computer you are working on. The
colour and transparency of the banner can be selected to make it as discreet as
possible. It may also be moved around the screen in any direction by using the
‘HOTKEYs’ together with the cursor keys.
For example to move the banner up the screen (assuming the default CTRL + ALT
hotkeys) use:
baw
The computer name banner is also used to tell the you that another user is using the
computer that you are currently connected to. Whist the other user has control of the
computer you will see the message "Video Only" below the computer name banner.
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4.12 Setting the USER PREFERENCES
The USER PREFERENCES are system operating parameters that are
independently selectable for each user. From the main menu press F1 for MORE
MENUS. Use the cursor keys to position the menu bar over USER PREFERENCES
Press ENTER or RETURN to view the preferences. Use the cursor keys to place the
menu bar over the required option and then use SPACE BAR to change the option
as required. Press ESC to quit and save the changes.
4.12.1 OSD COLOUR
Accessed from menu: USER PREFERENCES
Settings: DEFAULT, SCHEME 1, SCHEME 2
As you toggle between these options you will see the colour of the menu change to
show the selected scheme. The menu schemes have been specially chosen to
provide a high contrast with the colours that you would normally see on a computer
screen.
4.12.2 REMINDER BANNER
Accessed from menu: USER PREFERENCES
Settings: ENABLED, DISABLED
When the reminder banner is enabled, the name of the currently selected computer
will appear in a small reminder banner. This is normally located at the top of the
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screen in a central position but may be moved as required (see section 4.8)
4.12.3 REMINDER COLOUR
Accessed from menu: USER PREFERENCES
Settings: BLUE/TRANS, PINK/TRANS, BLUE/WHITE, WHITE/RED
You may select the colour of the reminder banner. The BLUE/TRANS and
PINK/TRANS select blue or pink text with a transparent background. The
BLUE/WHITE and WHITE/RED settings select blue and white text on solid white and
red backgrounds.
4.12.4 SCREEN SAVER TYPE
Accessed from menu: USER PREFERENCES
Settings: BLANK, MOVING DOT
You may select the type of screen saver. If you select BLANK then the screen will
blank completely. If you select MOVING DOT then a moving dot will be displayed on
a blank background. The dot regularly changes colour and bounces off the sides of
the screen in a zigzag pattern.
4.13 Us ing the FUNCTIONS menu
The FUNCTIONS menu provides you with a number of useful functions that will help
you to make the most of your LINDY CPU Switch. You can access the FUNCTIONS
menu from the main on-screen menu by pressing F1 and selecting FUNCTIONS.
Standard users will be offered just two functions:
RESTORE STANDARD MOUSE and
RESTORE INTELLIMOUSE
If you have disconnected a mouse cable or you have switched the LINDY CPU
Switch off then the mouse connection will normally be lost. To reconstitute the
mouse connection use the mouse reset functions. See section 2.9 for a full
explanation of how these functions work.
The ADMIN user is also given the option to RESET TO FACTORY DEFAULTS. This
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will clear all the computer and user names and set all parameters back to the factory
defaults. To avoid activating this function by accident the administrator must confirm
the reset instruction by pressing F8.
4.14 Querying the routing s tatus
It is sometimes useful to know which KVM consoles are connected to which
computers and their connection modes (shared, exclusive or video only). For
example, if the LINDY CPU Switch denies you access to a particular computer you
may wish to know if another KVM console has exclusive use of this computer and
consequently is preventing your access. To query the routing status press F1 from
the main on-screen menu and then select ROUTING STATUS. A routing status
display similar to the one shown below will be displayed for 10 seconds. Press ESC
to quit or wait for the routing status screen to disappear.
4.15 Cas cading LINDY CPU Switches
LINDY CPU Switch Dual Juniors can be cascaded in a tree structure to support
larger numbers of computers. Up to four cascade levels are supported and the
number of cascade links between LINDY CPU Switches can be chosen by the user.
The number of installed cascade links determines the number of users that may be
accessing ports on the cascaded units simultaneously. The full rules that must be
followed when configuring a cascade of CPU Switches are given in section 2.5.
Although it is theoretically possible to select computers on cascaded units by
pressing the hotkeys and then typing in the port address this would be highly
confusing for users and is not generally recommended. Consequently it is normally
advisable to use the on-screen menu to select computers on cascaded units.
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However it is sometimes useful to be able to connect to ports on cascaded units via
a specific cascade cable (rather than the first available of a group) in order to check
that the cabling is working as expected. To do this you can use a hotkey sequence
similar to the example shown below.
For example to connect to port 14 on a LINDY CPU Switch Dual Junior that is
cascaded off port 1 of your first LINDY CPU Switch Dual Junior. Although the
following example selects a port with a four digit address (port 0114) you can type
port addresses that are eight digits long to access computers that are on the forth
cascade level (e.g. Port 01140203).
pres s ba
0releas e
0
1
pres s 1releas e
1
pres s 1releas e
ba
4
pres s 4releas e
4.16 Res etting us er port keyboards and mice
The LINDY CPU Switch gives you the facility to perform a complete power off reset
of the keyboard and mouse that are connected to a selected user port. This can be
useful if you wish to disconnect the keyboard or mouse and replace them with
alternatives. Keyboards will enable themselves automatically if they are
disconnected and then re-connected to the LINDY CPU Switch. Mice will not
normally re-enable themselves after they have been disconnected and re-connected
although they will do so automatically if the LINDY CPU Switch's channel has been
changed whilst the mouse is disconnected.
Consequently you will normally need to perform a power-off reset of the user port if
you have disconnected and re-connected a mouse. The power off reset function
only affects the selected user port and does not affect any of the computer
connections or any of the other user ports. To perform a power-off reset for a
selected user port:
1) Press the USER key on the front panel of the LINDY CPU Switch to select the
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user port whose keyboard and mouse you wish to reset.
2) The selected user port number should now be shown on the green USER
display.
3) Press and hold down the USER key for 5 seconds until the green USER display
goes off. The keyboard and mouse will then be powered off.
4) As soon as the green display goes off you may release the USER key. The
green display will then come back on and a few seconds later the keyboard and
mouse will be powered on and ready for use.
4.17 Us ing the LINDY extender
Refer to the installation guide provided with your LINDY extender.
When using an LINDY extender we highly recommend that you set the extender's
hotkeys to be different to the LINDY CPU Switch's hotkeys to avoid any confusion
4.18 What to do if you forget your ADMIN pas s word
If you forget your ADMIN account password you will not be able to access the
LINDY CPU Switch Dual Junior to add or edit users and computer names. If this
unfortunate situation does occur then you can resolve it by performing a complete
reset to return the LINDY CPU Switch to its factory default state. A complete reset
erases all the user names and computer names that you have setup. You can only
perform a complete reset if you have access to both the front and the rear of the
LINDY CPU Switch.
To perform a complete reset and return the LINDY CPU Switch to its factory default
state:
1) Power on the LINDY CPU Switch normally.
2) Whilst the LINDY CPU Switch is powered on move switch 2 on the rear panel of
the LINDY CPU Switch (labelled UPGRADE) to the ON (down) position.
3) Press the USER and the COMPUTER keys together.
4) The green USER display will show 'r' for a few seconds to confirm that a reset is
taking place.
5) Return switch 2 to the normal OFF position (up).
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4.19 Saving and res toring the menu configuration to and from an
Excel compatible file.
The LINDY CPU Switch Dual Junior will store up to 512 computer names and 16
sets of user access rights. If you have a cascade of LINDY CPU Switches then it
may take some time to enter all the computer names and port numbers and decide
on the access rights that you are going to grant to each user profile. Consequently,
for peace of mind it is useful to be able to store these settings. This can be done by
connecting a computer to the LINDY CPU Switch’s RS232 serial port and uploading
to configuration settings. You can only perform this function if you are logged
onto the LINDY CPU Switch as the ADMIN us er. The file that is used to store the
configuration settings has the additional advantage that it can be loaded into an
Excel spreadsheet and edited to make changes to computer names and access
rights. This edited information may then be downloaded back to the LINDY CPU
Switch.
To s ave the menu names and configuration s ettings :
1. Software utilities (LDJREAD.EXE and LDJWRITE.EXE) are available for
download from the LINDY website at www.LINDY.com
2. Connect the serial port on the rear of the LINDY CPU Switch Dual Junior to a
serial COM port on your computer using the serial cable supplied with the LINDY
CPU Switch. If you have lost this cable then you may use a replacement cable
with a 9-way female connector on one end and a 9-way male connector on the
other end and all lines connected straight through (i.e. pin 1 to pin 1, 2 to 2, 3 to
3 etc.).
3. Run the program LDJREAD.EXE on the computer that is connected to the LINDY
CPU Switch’s serial port. Follow the instructions given by the program.
4. Make sure that you are logged onto the LINDY CPU Switch as the ADMIN user.
From the main selection screen press F1 for More Menus . In the Configuration
Menu select Functions . In the Functions menu select Send Data to RS232
port.
5. The LINDY CPU Switch should then send the configuration data to your
computer. The LDJREAD program will store the data in a file named
LDJDATA.CSV that will be created in the same directory that you ran the
LDJREAD program from. Please ensure that you have sufficient rights to write to
this directory.
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To edit the menu names and configuration s ettings :
You may open the LDJDATA.CSV using a spreadsheet program such as Microsoft
Excel. The format of a typical file is shown below. You will see that the computer
names (rows) are tabulated against the user profiles (columns). To grant a user
access to a computer, enter the value 1 in the box that is common to the computer’s
row and the user’s column. To deny access, leave this box blank. To add extra
users, add additional columns (up to 16 users). To add extra computers, add
additional rows (up to 512 computers). The ADMIN user will always be granted
access to all computers regardless of the values entered.
USERS
ADMIN
Alan
Jim
Sue
Test
Test
PASSWORDS
password
letmein
hello
logmein
COMPUTERS
Admin PC
PORT
2103
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Alan's System
Comms Server
Comms PC
Gateway 1
2102
3
4
8
5
1
Gateway 2
To res tore the s aved / edited menu and configuration s ettings :
1. Connect the serial port on the rear of the LINDY CPU Switch Dual Junior to a
serial COM port on your computer using the serial cable supplied with the LINDY
CPU Switch.
2. Copy the program LDJWRITE and LDJDATA.CSV into the same directory on the
PC that is connected to the LINDY CPU Switch’s serial port.
3. Run the program LDJWRITE.EXE and follow the instructions given by the
program.
4. Make sure that you are logged onto the LINDY CPU Switch as the ADMIN user.
From the main selection screen press F1 for More Menus . In the Configuration
Menu select Functions . In the Functions menu select Read Data from RS232
port.
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5. The LINDY CPU Switch should then receive the configuration data to your
computer and load the new menu names and access rights into the menu.
4.20 Switching channels by s ending RS232 data
You can switch the LINDY CPU Switch Dual Junior remotely by sending RS232 data
to the serial communications port (located on the rear panel adjacent to the power
connectors). All data should be sent using the following RS232 protocol.
Baud: 19200, bits : 8, s topbits : 1, parity:none
No handshaking is implemented but valid command characters will be echoed back
to the sender.
The top nibble (4 bits) of the command byte defines the user port that is to be
switched (1=port 1, 2=port 2). The bottom nibble defines the computer port that the
user port is to be switched to (e.g. 0=port 1, 1=port 2, E=port 15, F=port 16).
For example:
Hexadecimal code 14 switches user port 1 to computer port 5
Hexadecimal code 28 switches user port 2 to computer port 9
Hexadecimal code 2D switches user port 2 to computer port 14
Special codes are:
Hexadecimal code 71 switches user port 1 to computer port 0 (off)
Hexadecimal code 72 switches user port 2 to computer port 0 (off)
The 9-pin female RS232 connector at the rear of the LINDY CPU Switch has the
following pinout:
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5. Upgrading the LINDY CPU Switch's firmware
The LINDY CPU Switch Dual Junior uses flash memory technology which enables
the firmware code to be upgraded by the user. New keyboards, mice operating
systems and drivers are being launched all the time. From time to time the LINDY
CPU Switch's firmware will be updated to provide support for these new devices.
You can take advantage of these upgrades free of charge during the warranty
period.
Upgrades are performed by connecting a PC's serial port to the LINDY CPU
Switch's serial port and running an upgrade program on the PC. This upgrade
program downloads the new firmware to the LINDY CPU Switch Dual Junior and
checks that the data has been programmed correctly.
You can check the version of the firmware that is currently loaded into your LINDY
CPU Switch using the on-screen menu. To do this activate the on-screen menu
using the keyboard hotkeys (see section 4.10) and then press F1. The version
number of the current firmware will then be displayed at the bottom of the
Configuration Menu.
To perform a firmware upgrade on your LINDY CPU Switch Dual Junior you will
need a suitable serial upgrade cable and an IBM PC compatible computer with an
RS232 serial port and an operating system that supports DOS. Suitable upgrade
cables with 9-pin serial connectors are provided with the LINDY CPU Switch Dual
Junior. If you have lost your cable then you will need to buy a cable with a 9-way D-
type male connector on one end and a 9-way D-type female connector on the other
end with all 9 lines connected "straight through" (i.e. pin 1 to pin 1, pin 2 to pin 2, pin
3 to pin 3 etc.). These are standard serial extension cables.
You will also need to obtain the latest version of the LINDY CPU Switch Dual Junior
firmware which is available by request from www.LINDY.com. Please ensure that
you have your product serial number and model number at hand when requesting
an upgrade.
Note: The normal flash upgrade process does not clear the computer names, user
names, security passwords or other configuration settings.
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To perform a flash upgrade on the LINDY CPU Switch Dual Junior:
Step 1 - Prepare your computers
Ensure that you have saved any important work on the connected computers. The
LINDY CPU Switch Dual Junior can be upgraded whilst attached to live systems but
remember that the mouse connections will probably need to be reconstituted after
the upgrade is finished (see sections 4.13 and 2.9). Where possible, mission critical
servers should be switched off or disconnected before performing an upgrade.
Step 2 - Connect your computer to the LINDY CPU Switch Dual J unior
Connect your computer's serial port (COM1 or COM2) to the LINDY CPU Switch
Dual Junior's serial port (see figure 2). You do not need to set the serial baud rate
and protocol because the upgrade program will do this for you automatically (for
reference, the RS232 baud rate used by the upgrade program is 19200 and the
protocol is 8 bits, 1 stopbit and no parity).
Step 3 - Select flas h upgrade mode us ing option s witch 2 (labelled UPGRADE)
Move option switch 2 on the back of the LINDY CPU Switch Dual Junior to the ON
position (down).
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Step 4 - Power off the LINDY CPU Switch Dual J unior
Remove the power from the Dual Junior.
Step 5 - Power on the LINDY CPU Switch with the UPGRADE s witch ON
Attach the power adapter to the LINDY CPU Switch whilst the UPGRADE switch is
ON. The green USER display should now show a lower case 'u'. This indicates that
the LINDY CPU Switch is ready to be upgraded.
The display should now show:
Step 6 - Run the upgrade program
The latest version of the LINDY CPU Switch Dual Junior firmware is available from
the LINDY website at www.LINDY.com. The upgrade files will be supplied to you as
a group and consist of several files as explained below. These files should be
downloaded to the same directory on your computer.
1) A universal upgrade program
LYDJ NR.EXE
2) Binary code files for each of the processors within the LINDY CPU Switch (up to
3)
e.g.
216A129.HEX
216B129.HEX
216C129.HEX
These files use the following naming scheme. The first three characters are the
model type (e.g. 216 is an LINDY CPU Switch Dual Junior model with 16 computer
ports). The forth character is the processor designation. The last three characters
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represent the firmware release version (e.g. 129 equals version 1.29).
3) A data file that tells the upgrade program (LYDJNR.EXE) which binary code files
(HEX files) to download to the LINDY CPU Switch Dual Junior and where to put
each file. Theoretically this DAT file can be modified so that only certain processors
are upgraded but do not do this unless specifically instructed by LINDY technical
support.
e.g.
216V129.DAT
Like the hex files, the first three digits represent the model number (e.g. 216
represents an LINDY CPU Switch Dual Junior model with 16 computer ports). The
next four digits represent the version number (e.g. V129 equals firmware version
1.29).
To upgrade the LINDY CPU Switch, check that the DAT file designation matches the
model that you have. In other words, if you have an LINDY CPU Switch Dual Junior
with 16 computer ports and you want to upgrade to version 1.30 then the DAT file
that you need would be named 216V130.DAT. Also check that all the required files
are loaded into the same directory on your computer. From that directory run the
upgrade file using the following command line.
LYDJNR {Dat_file_name}.DAT
Where {Dat_file_name} is the name of the required DAT file
For example, if the name of the required DAT file is 216V129.DAT then use the
following command line:
LYDJ NR 216V129.DAT
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IMPORTANT NOTE
The upgrade programs are DOS bas ed to enable compatibility with the wides t
range of operating s ys tems . They run efficiently on DOS, Windows 3.X,
Workgroups , 95, 98, ME and Windows NT. The upgrades will take
approximately 10 minutes but vary s lightly according to the LINDY CPU
Switch model and the s peed of the PC. Upgrades run from PCs us ing
Windows 2000 will take very s ubs tantially longer due to the way that this
operating s ys tem handles the DOS programs . The upgrade will be reliable but
may take around 3 hours to complete!
Follow the instructions given on the screen to perform the upgrade. When the
upgrade is complete the program will confirm that the upgrade has been successful
and then quit.
Step 7 - Switch the UPGRADE key to the OFF pos ition and cycle the power
Switch the UPGRADE switch on the rear of the LINDY CPU Switch to the OFF
position and disconnect the power. When the power is re-applied the LINDY CPU
Switch will operate using the new firmware.
Some us eful is s ues to bear in mind when performing flas h upgrades
The upgrade program rewrites the LINDY CPU Switch's firmware code. If the
upgrade process is interrupted then the LINDY CPU Switch will have invalid code
and will not be able to operate. It is therefore good practice to ensure that the
upgrade process is always fully completed. A partial or failed upgrade may be
rectified by performing another upgrade. If the upgrade process is interrupted
accidentally then you should immediately repeat the upgrade process without
moving switch 2 from the upgrade (ON) position. Switch 2 forces the LINDY CPU
Switch into flash upgrade mode and prevents the upgraded code from being run.
Running faulty or partially upgraded code may have unpredictable results and may
damage your LINDY CPU Switch or computing equipment. For obvious reasons, the
code that the LINDY CPU Switch uses to perform upgrades is not itself upgradeable
- a common problem on some flash upgradeable products that could effectively be
destroyed by a partial upgrade!
WARNING - Running faulty or partially upgraded code may have unpredictable
res ults and may damage your LINDY CPU Switch or computing equipment.
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Appendix A. Cable and connector
s pecifications
IMPORTANT NOTE
The maximum cable lengths s upported vary widely between devices and
cables . It may be pos s ible to us e cables that are longer than thos e s pecified
below with certain PCs and peripherals but this cannot be guaranteed. If you
experience problems try us ing s horter cables .
A1. Keyboard, monitor and mous e to LINDY CPU Switch Dual J unior
Cable s pecification:
All of the shared devices plug directly into the relevant ports at the rear of the LINDY
CPU Switch. If you use an AT style keyboard you will need an AT (5 pin DIN female)
to PS/2 (6 pin mini-DIN male) converter. Keyboard, monitor and mouse extension
cables can be used to increase the distance from LINDY CPU Switch up to 10m.
Most keyboards and mice will also operate at distances of 20 metres.
A2. LINDY CPU Switch Dual J unior to PCs 1 to 16
Cable s pecifications :
Video - 15 pin high density male D connector to 15 pin high density male D
connector wired as a standard VGA PC to monitor cable. There are two types
commonly available. The best type cables which will give excellent quality are
constructed with coaxial cable cores. Cheaper ‘data’ cables are often used, but can
degrade video quality if used over longer distances. Avoid using 'data' cables longer
than 2 metres unless the video quality is not important. Good quality coaxial video
cables may be run at distances up to 30 metres with acceptable video quality. In a
cascaded application it is advisable to keep the total cable run from computer to
KVM no more than 30 metres.
Keyboard and PS/2 mice - 6 pin mini-DIN male connector to 6 pin mini-DIN male
connector with all lines connected straight through (1-1,2-2 etc.). If the PC has a 5-
pin DIN AT style keyboard connector you will need a PS/2 to AT keyboard adapter
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6-pin mini-DIN female to 5-pin DIN male (LINDY part code 70130). Cables should be
no longer than 30 metres.
RS232 s erial mice - these require a special converter (LINDY part code 70058) to
connect the RS232 lines present on the LINDY CPU Switch mouse ports to the
RS232 port on a PC.
Cables should be no longer than 30 metres.
NOTE - There are several common wiring specifications for 6-pin mini-DIN to 9-pin
serial adapters. If you have an adapter that has been supplied with a mouse it may
have a completely different internal wiring to that shown above and may not be
compatible with the LINDY CPU Switch
Recommended cables :
3-in-1 keyboard, video and mous e combination cable - For convenience,
neatness and high video quality we recommend the LINDY brand 3-in-1 combination
cables. These cables are constructed with tri-coax video links to ensure that high
video quality is maintained. They also support DDC signalling and are colour coded
in PC99 specification colours for your convenience. These match the colours used
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on the back of your LINDY CPU Switch Dual Junior and most modern PCs. These
cables are available in various different lengths to suit your requirements. They may
be purchased from LINDY, please quote the following part codes when ordering.
Part Code
33711
Des cription
3-in-1 LINDY cable, 1 metre long
3-in-1 LINDY cable, 2 metres long
3-in-1 LINDY cable, 3 metres long
3-in-1 LINDY cable, 5 metres long
3-in-1 LINDY cable, 10 metres long
33712
33713
33714
33716
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Appendix B. Problem Solving
Problem:
Poor video quality with smearing fuzziness or ripple.
Action:
Use screened coaxial video cables to connect your devices to the LINDY CPU
Switch.
For more help with problems visit the LINDY website at www.LINDY.com.
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Notes
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