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© LINDY ELECTRONICS LIMITED
LINDY CPU Switch Junior Range
Installation and Use
Part Model
32 277 LINDY CPU Switch Junior 2
Part Model
32 278 LINDY CPU Switch Junior 4
Part Model
32 286 LINDY CPU Switch Junior 4 OSD
32 287 LINDY CPU Switch Junior 8 OSD
CPU Switch Junior - Installation and Use
Third Edition (February 2000)
Part Numbers 32 277, 32 278, 32 286 & 32 287
© 2000 LINDY Electronics Ltd.
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LINDY ELECTRONICS LTD Installation & Use – English Guide Page 1
About this manual
LINDY CPU Switch Junior - Installation and Use
Third Edition (February 2000)
LINDY CPU Switch Junior 2 Part No. 32 277
LINDY CPU Switch Junior 4 Part No. 32 278
LINDY CPU Switch Junior 4 OSD Part No. 32 286
LINDY CPU Switch Junior 8 OSD Part No. 32 287
LINDY CPU Switch Junior PSU Part No. 32 279
LINDY CPU Switch Junior Rack mount kit Part No. 32 285
LINDY CPU Switch Remote Control unit Part No. 32 255
© 2000 LINDY Electronics Ltd.
All rights reserved. Whilst every precaution has been taken in the preparation of this manual,
LINDY Electronics Ltd 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.
Safety information
• For use in dry, oil free indoor environments only.
• Warning - live parts contained within power adapter.
• No user serviceable parts within power adapter - do not dismantle.
• Plug the power adapter into a socket outlet close to the LINDY CPU Switch Junior.
• Do not use power adapter if power adapter case becomes damaged, cracked or broken or if
you suspect that it is not operating properly.
Warranty
LINDY Electronics Ltd warrants that this product shall be free from defects in workmanship and
materials for a period of one year from the date of original purchase. If the product should fail to
operate correctly in normal use during the warranty period, LINDY will replace or repair it free of
charge. 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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Page 2 Installation & Use – English Guide LINDY ELECTRONICS LTD
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
This equipment has been tested and found to comply
with the limits for a class B 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.
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.
Canadian Department of Communications RFI
statement
This equipment does not exceed the class A limits for
radio noise emissions from digital apparatus set out in
the radio interference regulations of the Canadian
Department of Communications.
Le présent appareil numérique n’émet pas de
bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la classe
A prescrites dans le règlement sur le brouillage
radioélectriques publié par le ministère des
Communications du Canada.
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Contents
1. Introduction
1.1 Key features......................................................................................................... 4
1.2 Package contents................................................................................................. 5
1.3 Rack mount kit contents....................................................................................... 5
1.4 Remote controller contents .................................................................................. 5
1.5 Product information.............................................................................................. 6
2. Installation
2.1 What you will need............................................................................................... 8
2.2 Mounting the LINDY CPU Switch Junior.............................................................. 9
2.3 Connecting your devices...................................................................................... 9
2.4 ‘Self powered’ operation without the optional power adaptor............................... 10
2.5 Configuring your PCs........................................................................................... 10
2.6 Other useful installation information..................................................................... 10
2.7 Re-enabling a disconnected PS/2 mouse............................................................ 11
2.8 Hot plugging the LINDY CPU Switch Junior into running systems and
re-enabling disconnected CPU PS/2 mouse connections.................................... 11
3. Using the LINDY CPU Switch Junior
3.1 Power indicator .................................................................................................... 14
3.2 Front panel key .................................................................................................... 15
3.3 Channel lights & Status display............................................................................ 15
3.4 Keyboard hotkey control....................................................................................... 16
3.5 On Screen Display............................................................................................... 17
3.6 Mouse control....................................................................................................... 19
3.7 RS232 Control...................................................................................................... 19
3.8 LINDY CPU Switch Remote Control .................................................................... 19
3.9 Cascading LINDY CPU Switches Junior.............................................................. 20
4. Configuring the LINDY CPU Switch Junior
4.1 Configuring the LINDY CPU Switch Junior........................................................... 21
4.2 Maintenance mode options and functions............................................................ 22
4.3 Resetting the shared keyboard and mouse.......................................................... 23
4.4 Resetting the LINDY CPY Switch Junior.............................................................. 23
4.5 Querying the LINDY CPY Switch Junior’s firmware version................................. 23
5. Configuring the LINDY CPU Switch Junior OSD
5.1 Configuring the LINDY CPU Switch Junior OSD.................................................. 24
5.2 Screen Saver time delay...................................................................................... 25
5.3 Display appearance options................................................................................. 25
5.4 Autoscan ‘lock on’ mode and delay time.............................................................. 26
5.5 Mouse mode and mouse switching of channels................................................... 27
5.6 Keyboard hotkey combination.............................................................................. 28
5.7 Firmware functions (version query, mouse restore and reset) ............................. 28
5.8 Setting a security password ................................................................................. 29
5.9 Cascade query code ............................................................................................ 29
5.10 Exit configure mode.............................................................................................. 30
Appendices
A LINDY CPU Switch Junior OSD Configuration Summary..................................... 31
B Cable and connector specifications...................................................................... 33
C Problem solving.................................................................................................... 35
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1. Introduction
Thank you for purchasing the LINDY CPU Switch Junior. Your LINDY CPU Switch Junior is a high
performance keyboard, monitor and mouse sharing device which supports a wide range of PC
hardware and software platforms.
1.1 Key Features
Key Features of LINDY CPU Junior Switches
Junior 2 Junior 4 Junior
4
OSD
Junior
8
OSD
Control multiple PCs from a single keyboard, monitor and mouse. Yes Yes Yes Yes
On-screen menu allows computers to be selected by name. No No Yes Yes
SmartBoot feature automatically boots all machines during power up. Yes Yes Yes Yes
‘Self powered’ operation – LINDY CPU Switch Junior draws its power from the
connected PCs.
Yes Yes Yes Yes
Mixed AT/PS2 keyboards and PS2/RS232 mice supported as standard. Yes Yes Yes Yes
Can be cascaded to provide a video switching network. Yes Yes Yes Yes
Password security prevents unauthorised use. No No Yes Yes
Remote control module for convenient operation. No No Yes Yes
Channel switching by on-screen display No No Yes Yes
Channel switching by front panel key, keyboard hotkey, or button mouse. Yes Yes Yes Yes
Automatically restores keyboard and mouse states when channel changed. Yes Yes Yes Yes
Can be controlled remotely via an RS232 serial port. No No Yes Yes
Supports high bandwidth monitors at resolutions up to 1900 x 1200. Yes** Yes** Yes Yes
Includes screen saver, auto-scan and variable hotkey options. No No Yes Yes
Confirmation of selected ports on local and cascaded LINDY CPU Switches. No No Yes Yes
Supports keyboard modes 1,2 and 3 and mouse prompt and stream modes for
maximum compatibility.
Yes Yes Yes Yes
Support for Microsoft® IntelliMouse and other common wheel mice
Yes Yes Yes Yes
Low powered – can be powered from many laptops.
Yes Yes No No
Supports IBM® ThinkPad ‘Y’ cables.
Yes Yes Yes Yes
Power and activity indication confirm correct operation.
Yes Yes Yes Yes
Standard cable connections make installation easy and inexpensive.
Yes Yes Yes Yes
All ports are active simultaneously – the connected PCs may all be booted at the
same time.
Yes Yes Yes Yes
Mouse restoration functions to enable ‘hot plugging’ of certain systems.
Yes Yes Yes Yes
Robust metal case ensures good shielding and video quality.
Yes Yes Yes Yes
Optional power adaptor can be used for ‘video only’ or cascade applications.
Yes Yes Yes Yes
Supports RS6000 computers.
Yes Yes Yes Yes
19” rack mount kit available.
No No Yes Yes
** LINDY CPU Junior switches (non OSD models) support a maximum re solution of 1600 x 1280
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1.2 Package contents
LINDY Junior 2 Switch
LINDY Junior 4 Switch
LINDY CPU Switch. LINDY CPU Switch.
This installation guide. This installation guide.
LINDY Junior 4 OSD Switch
LINDY Junior 8 OSD Switch
LINDY CPU Switch. LINDY CPU Switch.
This installation guide. This installation guide.
6 x stick on self-adhesive rubber feet.
6 x stick on self-adhesive rubber feet.
A power adaptor is not included as standard because it is not needed for most
installations. The optional power adaptor may be purchased separately, (Part No. 32 279).
1.3 Rack Mount kit contents (Part No. 32 285)
2 x mounting brackets for fixing the unit to a 19” rack.
4 x screws for fixing mounting brackets to the LINDY CPU Junior OSD Switch.
1.4 Remote Controller contents (Part No. 32 255)
Remote control module.
Velcro strip for mounting remote controller.
Cable length is 3m.
Remote control pad / display
(Optional accessory for LINDY CPU Junior OSD 4 or 8 Switches)
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1.5 Product information
Figure 1 - LINDY CPU Switch Junior 2 (2 port model supporting 2 PCs)
Figure 2 - LINDY CPU Switch Junior 4 (4 port model supporting 4 PCs)
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Figure 3 - LINDY CPU Switch Junior 4 & 8 OSD front view (supporting 4 or 8 PCs)
Figure 4 - LINDY CPU Switch Junior 4 OSD rear view (supporting 4 PCs)
Figure 5 - LINDY CPU Switch Junior 8 OSD rear view (supporting 8 PCs)
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2. Installation
2.1 What you will need
• Cables to connect the LINDY CPU Switch Junior to each of your PC keyboard, video and
mouse ports. Cable specifications are given in appendix B. (You do not need to connect a
mouse cable if you are not using the mouse).
• A monitor with a standard VGA/SVGA (15 HD pin) connector that will work when connected
directly to each of your PCs. LINDY CPU Switch Junior supports low and high resolution
monitors.
• A standard AT or PS/2 style keyboard. If you are using an AT keyboard with a 5 pin connector
you may connect this to the LINDY CPU Switch Junior using a standard AT to PS/2 keyboard
adapter.
• 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
Junior’s channel then you will need a three button mouse or an IntelliMouse.
(The LINDY CPU Switch Junior supports ‘Internet 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).
• 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).
• Mouse drivers that use a compatible data format to the Microsoft® IntelliMouse. You may
need to try these to assess their compatibility.
• Use of PS/2 and RS232 style mice with the LINDY CPU Switch Junior - All of the mouse
connections from LINDY CPU Switch Junior to PCs support either a PS/2 or an RS232 mouse.
LINDY CPU Switch Junior 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. This adapter is the same as is shipped with Microsoft® auto-sensing mice. The
LINDY CPU Switch Junior will operate without a mouse connected if you do not wish to use
one.
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2.2 Mounting the LINDY CPU Switch Junior
LINDY CPU Junior 2 & 4 Switches LINDY CPU Junior 4 OSD & 8 OSD Switches
The LINDY CPU Junior Switch has
been designed to be used either on a
desktop or mounted close to the
computer system boxes which it is
serving.
The LINDY CPU Switch has been designed to be used
either on a desktop or mounted in a 19 inch rack. If it 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 Junior OSD switch. If you wish to mount
it in a 19” rack then you will need to fit the rack mounting
brackets to the side of the LINDY CPU Junior OSD. The
19” rack mounting brackets are supplied in the optional
rack mounting kit (part 32 285).
2.3 Connecting your devices
Ensure that the optional power adaptor is disconnected from the LINDY CPU Switch Junior and
that all the devices which are to be attached are switched off. Connect the shared keyboard, PS/2
mouse and monitor to the control port connectors (see figures 1, 2, 4 & 5). Next connect each
computer system unit in turn with the keyboard cable, mouse cable and video cable. Any unused
computer connections can be left unconnected. To connect computers with serial mouse
connections and AT style keyboard connections use the adapters supplied in the cabling pack as
shown below. Alternatively, if you have chosen to purchase specific cable lengths, refer to
appendix A for cable specifications.
The LINDY CPU Switch Junior is now ready for use. It will start to operate as soon as one of the
connected CPUs is powered on or the optional power adaptor is connected. The power light (on
non-OSD models), confirms that sufficient power is available to operate the LINDY CPU Switch
Junior. If you are connecting to PCs using cables that are longer than 3 metres or are cascading
the switch to another you will need to use the optional power adaptor. When using the optional
power adaptor, ensure that is is connected to the mains and powered on before you switch on any
of the connected computers. Failure to switch the LINDY CPU Switch Junior and computer(s) on in
the correct order can lead to the mouse and/or keyboard not being recognised by the computers
when they are switched on.
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2.4 ‘Self powered’ operation without the optional adaptor
The LINDY CPU Switch Junior draws its power from the connected computers via the keyboard
cables. A single keyboard connection is normally sufficient to power the LINDY CPU Switch Junior
provided that the cable is no longer than 3 metres. If more than one computer is connected then
the power will be intelligently drawn from all computers. Cables longer than 3 metres may be used
provided that the LINDY CPU Switch Junior is already powered by another connected computer or
the optional power adaptor. If you are cascading the LINDY CPU Switch Junior to another then a
power adaptor must be connected to all LINDY CPU Switch Juniors.
2.5 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 points:
• LINDY CPU Switch Junior 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.
• LINDY CPU Switch Junior supports VGA/SVGA/XGA/XGA2 type monitors, but does not
support the automatic detection features available with some ‘plug and play’ monitors and
video cards. If you have this type of video card and monitor, you should select the video mode
manually instead of relying upon the automatic detection feature.
2.6 Other useful installation information
PC boot up sequence - 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 Junior 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.
Mouse characteristics - 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 Junior 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 Junior 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 2.7 for details.
Keyboard and mouse mode switching - The LINDY CPU Switch Junior 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 Junior channel is switched thus ensuring maximum software compatibility. The
<NUM LOCK>, <CAPS LOCK> and <SCROLL LOCK> states are an obvious example of this
process.
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2.7 Re-enabling a disconnected PS/2 mouse
If you disconnect the shared PS/2 mouse from the LINDY CPU Switch Junior 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 Junior is fitted with an
automatic mouse recovery system.
LINDY CPU Switch Junior 2 & 4 LINDY CPU Switch Junior OSD 4 & 8
With the PS/2 mouse disconnected, change the channel using the keypad or keyboard hotkeys.
The LINDY CPU Switch Junior detects that the mouse has been disconnected and triggers the
automatic recovery system. Plug in the PS/2 mouse and the LINDY CPU Switch Junior will reinitialise it.
You may also re-enable a disconnected PS/2
mouse by using the keyboard and mouse reset
function (see section 4.3). **
You can reset the keyboards and mice by
holding down the front panel key for 5
seconds. When the character ‘C’ is displayed
on the front of the LINDY CPU Switch Junior
OSD, press the front panel again. **
** A complete power off reset of the connected keyboards and mice will then be performed. This
function only resets the shared keyboard and mice that are plugged into the control port. It does
not affect the status of any of the other ports on the switch or the CPU connections.
2.8 Hot plugging the LINDY CPU Switch Junior into running systems and
re-enabling disconnected CPU PS/2 mouse connections
It is advisable to switch off the systems that are going to be connected to the LINDY CPU Switch
Junior before installation. However if this is not possible then most systems can be hot plugged by
using the LINDY CPU Switch Junior’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 Junior 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 Junior's mouse restoration functions.
IMPORTANT NOTE
Mouse restoration functions should be used with care as unpredictable results may occur
if the wrong mouse type is selected. If in doubt restore the mouse 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 Junior. 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 mouse / system
Connected at bootup
Driver type
Likely expected
data format
Suggested
restoration
Non-
OSD
OSD
Model
PS/2 PS/2 only PS/2
I
PS/2 IntelliMouse PS/2
I
IntelliMouse / LINDY CPU Switch PS/2 only PS/2
I
IntelliMouse / LINDY CPU Switch IntelliMouse IntelliMouse
I
To restore lost mouse movement on a CPU connected to the LINDY CPU Switch Junior:
1) Select the CPU that has lost its mouse movement
2) Press the select key on the front of the LINDY CPU Switch Junior for 5 seconds until lights 1
and 2 are displayed together (or ‘C’ appears on OSD models). The LINDY CPU Switch Junior
is now in maintenance mode.
3) To restore a PS/2 mouse connection press
Or, to restore an IntelliMouse connection press
Note, on the LINDY CPU Switch Junior OSD 4 and 8 port, you must press the <ENTER> key after
selecting the option required. For example, to restore a PS/2 mouse connection press
)x
4) Test the mouse movement by slowly moving the mouse a short distance. In most cases the
mouse should now work and no further action will be necessary
5) If the mouse darts uncontrollably around the screen then there are two possible reasons.
Firstly the CPU may be expecting a different mouse data packet format. A PS/2 mouse sends a
3 data character report and an IntelliMouse sends a 4 data character report. If you are in doubt
then try setting the other data format (see step 3).
Secondly, the data packet format may be correct but the LINDY CPU Switch Junior and the
CPU may not be correctly synchronised. In other words the LINDY CPU Switch Junior may be
sending the first data character whilst the CPU is expecting the second data character. Most
PC mouse drivers will automatically re-synchronise themselves if no mouse data has been
received and so this is not normally a problem. However some mouse drivers do not
automatically re-synchronise. The LINDY CPU Switch Junior is fitted with a re-synchronisation
function that allows the synchronisation between the LINDY CPU Switch Junior and the CPU to
be altered by 1 data character. Using this function the synchronisation between the LINDY
CPU Switch Junior and the CPU can be matched.
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LINDY ELECTRONICS LTD Installation & Use – English Guide Page 13
To attempt to re-synchronise the mouse press the key on the front of the LINDY CPU Switch
Junior for 5 seconds until lights 1 and 2 are displayed together. The LINDY CPU Switch Junior
is now in maintenance mode.
Now press on the keyboard. Test the mouse function and repeat this procedure up to 3
times until correct mouse operation is restored.
Note, the above option of using on the keyboard is available on the LINDY CPU Switch
Junior (non OSD models) only. The OSD models have an automatic re-synchronise facility
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Page 14 Installation & Use – English Guide LINDY ELECTRONICS LTD
3. Using the LINDY CPU Switch Junior
This section explains the general operation of the LINDY CPU Switch Junior. We recommend that
you read this section before starting to use the product.
3.1 Power indicator
LINDY CPU Switch Junior 2 & 4 LINDY CPU Switch Junior OSD 4 & 8
The LINDY CPU Switch Junior
draws its power from the attached
CPUs via the keyboard cables.
The green power light confirms
that there is sufficient power
available. If the power light flashes
or is off continuously then there is
not sufficient power available.
At power on the LINDY CPU Switch Junior OSD selects
PC number 1 and displays ‘1’. If a password has been
set then ‘P’ will be displayed and the LINDY CPU Switch
Junior OSD will remain locked until a valid password is
entered.
If there is insufficient power available from the
connected computers then the LINDY CPU Switch
Junior OSD will indicate the power status as shown in
the diagram below. Sufficient power will normally be
available if the cables between the LINDY CPU Switch
Junior OSD and PCs are 3 metres or less.
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LINDY ELECTRONICS LTD Installation & Use – English Guide Page 15
3.2 Front panel key
LINDY CPU
Junior 2
LINDY CPU
Junior 4
LINDY CPU
Junior 4 OSD
LINDY CPU
Junior 8 OSD
The front panel key is used to select which channel is currently connected to the shared
keyboard, mouse and monitor. Pressing the key during normal operation will cause the next
channel to be selected.
Not supported
To enter configuration mode, press and hold down
the key for 5 seconds until ‘C’ appears on the
LINDY CPU Switch Junior OSD’s front panel
display.
Cycle around ports
1 & 2
Cycle around ports
1, 2, 3 & 4
Cycle around ports
1, 2, 3 & 4
Cycle around ports
1, 2, 3, 4,5, 6, 7 & 8
Not supported
An optional remote controller is also available
which replicates the front panel key and display,
but can be located remotely from the LINDY CPU
Junior OSD switch. This is particularly useful in
applications where the LINDY CPU Junior OSD
switch is located away from the desktop. The
remote controller can be conveniently attached to
your keyboard with a couple of velcro strips to give
instant channel information and key control.
3.3 Channel lights & Status display
LINDY CPU
Junior 2
LINDY CPU
Junior 4
LINDY CPU
Junior 4 OSD
LINDY CPU
Junior 8 OSD
The channel lights indicate the currently
selected channel. The currently illuminated
channel light will flash to indicate keyboard
and mouse activity. In auto-scan mode the
lights alternate between showing the currently
selected port and indicating that the LINDY
CPU Switch Junior is in auto-scan mode by
flashing all the lights. Channel lights 1 and 2
are illuminated together when the LINDY
CPU Switch Junior is in maintenance mode.
The status display usually shows the currently
selected port. If autoscan mode is selected,
the segments will illuminate in sequence in a
clockwise direction interspersed with a
display of the currently selected channel. If
the LINDY CPU Switch OSD has been
locked, ‘P’ will be displayed until a valid
password has been typed to unlock the unit.
Data flow from the mouse or keyboard
causes the dot to flash.
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3.4 Keyboard hotkey control
LINDY CPU Switch Junior can be conveniently controlled by selecting channel, autoscan mode or
auto-scan mode from the keyboard. All of the hotkey control commands are invoked by holding
down the two hotkeys and then pressing a command key. By default, the two hotkeys are
t
and
s
, although other combinations can be selected. 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 Junior. HOTKEYs +
v
is an exception and this allows you
to 'tab through' the ports by holding down the hotkeys and repeatedly pressing
v
.
The hotkey commands are summarised below
(note that the numbers on the numeric keypad do not form part of a valid hotkey) :
Hotkey Sequence
LINDY CPU
Junior OSD 8
LINDY CPU
Junior OSD 4
LINDY CPU
Junior 4
LINDY CPU
Junior 2
‘HOTKEYs’ &
Select channel 1 Select channel 1 Select channel 1 Select channel 1
‘HOTKEYs’ &
Select channel 2 Select channel 2 Select channel 2 Select channel 2
‘HOTKEYs’ &
Select channel 3 Select channel 3 Select channel 3 -
‘HOTKEYs’ &
Select channel 4 Select channel 4 Select channel 4 -
‘HOTKEYs’ &
Select channel 5 - - -
‘HOTKEYs’ &
Select channel 6 - - -
‘HOTKEYs’ &
Select channel 7 - - -
‘HOTKEYs’ &
Select channel 8 - - -
‘HOTKEYs’ &
v
Selects the next channel, now supports only
active ports or all ports (see section 5.5)
Selects the next channel
‘HOTKEYs’ &
$
Selects auto-scan mode where each channel is displayed in turn for a selected time. To
cancel auto-scan mode simply select any fixed channel either by using the hotkeys or the
LINDY CPU Switch Junior’s button
‘HOTKEYs’ &
Switches off the video signal and display 0.
This will cause some monitors to go into
standby mode or switch off. The video signal
can be re-enabled by selecting a channel
Disables the LINDY CPU Switch Junior’s
shared video and switches all the channel
lights off. The video can be re-enabled by
selecting a channel
‘HOTKEYs’ &
0
Displays the on screen menu for selecting
computers by name
Not supported
‘HOTKEYs’ &
/
SUPPORTED
ON OSD
MODELS ONLY
Disables the LINDY CPU Switch 's shared keyboard and mouse and displays 0. The video
signal is switched off. If a password has not been set then the LINDY CPU Switch Junior can
be re-enabled by selecting a channel. If a password has been set then the LINDY CPU
Switch Junior displays 'P' to indicate that a valid password must be entered to unlock the
switch. Simply type the same key combination as was set during configuration (see section
5.8) then press the <ENTER> key. Note - if anyone has typed at the keyboard whilst in
secure mode, it will be necessary to press the <ENTER> key first to clear the invalid
password, then type the valid password followed by pressing <ENTER> again.
Examples of common hotkey sequences (assuming
t
+
s
hotkey option):
To select channel 2: press
ts
release
ts
To 'tab through' channels: press
tsv
release
v
press
v
Release
v
press
v
release
vts
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3.5 On Screen Menu control
IMPORTANT NOTE
This next section dealing with the On Screen Menu control is a feature only supported on the
LINDY CPU Junior 4 OSD & 8 OSD models.
On-Screen Menu
LINDY CPU Junior Switch can conveniently select a computer using the integral On Screen Menu
control. The menu is called up by pressing the two ‘HOTKEYs’ and 0. When the menu is first
called up, there will be no named computers listed. You must first enter the names and port
numbers for computers which are to be selected from the menu.
Adding a computer to the menu list
With the menu visible on the screen, press the <INSERT> key. This will cause a new Computer
entry field to be inserted on the menu. This is highlighted in red with a flashing cursor to indicate
the text entry position. Type in a name up to 16 characters long. You can use upper/lower case,
special and space characters. When completed press the <ENTER> key. The red highlighted area
now moves into the Port entry field and you can enter the port number for the named Computer. If
you are using cascaded LINDY CPU Junior Switches, the cascade routing will need to be entered
(see section 3.9 for more details). To specify port 5 on a LINDY CPU Junior Switch that is
cascaded off port 3 you would enter port number 35. Units can be cascaded three levels deep.
Now press <ENTER> again to complete the entry and store it in the menu memory.
Note that you can add another Computer to the menu list at any time. If you just use the
<INSERT> key, the entry will be placed after the current line. To place an entry before the current
line use <SHIFT> and <INSERT> together, then edit the new name as already described.
Deleting a computer from the menu list
With the menu visible on the screen, highlight the computer to be deleted and press the
<DELETE> key. To confirm deletion press <ENTER>. To abandon deletion press <ESC>.
Arrow shows
currently
selected
computer
Local IBM PC 1
Computer Port
NT Server B 356
NT Server A 355
Local Compaq PC 2
Web Browser 4
Comms Server B 6
Fred’s PC 7
Comms Server A 5
LINDY CPU SWITCH
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Editing a computer on the menu list
With the menu visible on the screen, highlight the computer to be edited and press the <SHIFT>
and <DELETE> keys together. Type in the new Computer name and port then press <ENTER>.
To abandon editing press <ESC>.
Selecting a computer on the menu list
With the menu visible on the screen, highlight the computer to be selected using the cursor p /
o
or <PAGEUP> / <PAGEDOWN> keys as required. Press the <ENTER> key to switch to the
highlighted computer. LINDY CPU Junior Switch has an advanced ‘connection confirmation’ facility
which is particularly useful in systems where many computers are displaying the same or very
similar video. The selected computer name and port number will briefly flash up on the screen to
confirm the selection has been made. If it is not possible to make the connection, perhaps because
a cascaded unit is not switched on or is in use locally, the menu will flash ‘computer unavailable’
until the <ESC> key is pressed.
Summary of keys used by the menu system and their function
Key Function
HOTKEYs’ and 0
Calls the menu up onto the screen (even if no PC video exists)
<INSERT> Adds a computer entry AFTER the currently selected line
<SHIFT> & <INSERT> Adds a computer entry BEFORE the currently selected line
<DELETE>
Deletes the currently selected computer
<SHIFT> & <DELETE> Edits the currently selected computer
<ENTER>
Confirms an entry or selects a computer
<ESC>
Quits from editing a line or quits from the menu
p
Moves up the menu by one line
o
Moves down the menu by one line
<PAGEUP>
Moves to the top of page or up 8 lines if more than 8 present
<PAGEDOWN>
Moves to bottom of page or down 8 lines if more than 8 present
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3.6 Mouse control
The channels can conveniently be changed on LINDY CPU Switch Junior by using a three button
mouse. In order to switch to the next channel simply hold down the central mouse button (the
wheel mouse button on an IntelliMouse) and click on the left hand mouse button. The channel will
then change.
Mouse switching may be enabled or disabled using the option switches (on non-OSD models) or
using the ‘U’ configuration options (on OSD models), see sections 4 & 5. When mouse switching is
disabled the third button or wheel button state is ‘passed through’ the LINDY CPU Switch Junior
and seen by the application software.
3.7 RS232 Control
IMPORTANT NOTE
RS232 control is supported on the LINDY CPU Switch Junior OSDs only
The LINDY CPU Switch Junior OSD can be controlled by a remote RS232 device. To select a
channel the data rate of the sending device must be set to 1200 baud, 8 bits, no parity and 1 stop
bit. No handshaking is used by the LINDY CPU Switch Junior OSD. Simply send the character for
the channel which needs to be selected, for example ASCII ‘1’ (hex code 31) will select channel 1,
ASCII ‘2’ (hex code 32) will select channel 2 and so on.
3.8 LINDY CPU Switch Remote control
IMPORTANT NOTE
RS232 control is supported on the LINDY CPU Switch Junior OSDs only
This small remote control device (see Section 1.4) duplicates the LED and SELECT key off the
front of the LINDY CPU Switch to provide a remote means of switching channels. The status
display shows the channel selected and mouse / keyboard and data activity.
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3.9 Cascading LINDY CPU Switch Juniors
Any number of LINDY CPU Switch Junior switches can be connected together to expand the total
number of connected computers. When LINDY CPU Switch Junior units are cascaded an external
power adapter must be connected to each of the LINDY CPU Switch Junior units. This avoids
trying to draw power for multiple LINDY CPU Switch Juniors from a connected CPU. The channels
on the cascaded LINDY CPU Switch Junior units can be selected using an extension of the
HOTKEY control function.
For example, consider a situation where two LINDY CPU Switch Junior 4 port units are connected
together as shown below. To connect to the computer attached to port 3 on LINDY CPU Switch
Junior B the user would hold down the hotkey keys then press ‘2’ followed by ‘3’, whilst keeping
the hotkey keys pressed. This will have the effect of connecting to port ‘3’ of the LINDY CPU
Switch Junior which is connected into port ‘2’ of the first LINDY CPU Switch Junior unit A.
For example to connect to port 3 on the LINDY CPU Switch Junior cascaded off port 2 of your first
LINDY CPU Switch Junior use:
press
t s
release
press
release
t s
A typical cascade of two LINDY CPU Switch Junior OSD 4 port units
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4 LINDY CPU Switch Junior Configuration Options
4.1 Configuring the LINDY CPU Switch Junior
IMPORTANT NOTE
This next section is for configuration of the LINDY CPU Switch Junior 2 and 4 ports (non OSD models)
For configuration of OSD models please refer to section 5.
The toggle switches on the side of the LINDY CPU Switch Junior are used to select operating
options. The switches are continuously read by the LINDY CPU Switch Junior and may be
changed whilst the unit is powered on. The default setting (all switches OFF) is suitable for most
installations. The switches have the following functions.
Switch Function
Selects the hotkey combination that can be used to switch the LINDY CPU Switch
Junior’s channel (see Section 3.4)
OFF Hotkeys = CTRL + ALT (default)
1
ON Hotkeys = CTRL + SHIFT
Sets the LINDY CPU Switch Junior to scan all the ports or just the active ports whilst
it is auto-scanning.
OFF Auto scan active ports only (default)
2
ON Auto scan all ports
Sets the time that each channel will be displayed for during auto-scan. The options
are 2 or 5 seconds.
OFF Auto scan time = 2 seconds (default)
3
ON Auto scan time = 5 seconds
Selects whether the mouse can be used to switch the LINDY CPU Switch Junior’s
channel (see section 3.6). If the mouse is being used to switch the LINDY CPU
Switch Junior then the third button or wheel button will not be available to the
application software.
OFF Enable mouse switching of channels (default)
4
ON Disable mouse switching of channels
Option switch 5 is used to reset the LINDY CPU Switch Junior (see section 4.4. For
normal operation set this switch to the OFF position.
OFF Enable operation (default)
5
ON Disable operation and perform full hardware reset
Option switch 6 is reserved and must be set to the OFF position.
OFF Reserved – set OFF
6
ON -
NOTE: Many modern monitors are fitted with automatic power save relays and will switch off after a few
seconds if connected to an in-active PC. If you are using such a monitor you must not allow the LINDY
CPU Switch Junior to auto-scan all ports. Constant switching on and off of your monitor’s relay will
eventually damage your monitor.
ON
OFF
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4.2 Maintenance mode options and functions
A number of useful functions are provided via the LINDY CPU Switch Junior’s maintenance mode.
The LINDY CPU Switch Junior continues to provide full emulation on all ports whilst within
maintenance mode to avoid errors occurring on the attached CPUs. The maintenance mode
functions provided are:
• Restore CPU PS/2 mouse connection.
• Restore CPU IntelliMouse mouse connection.
• Query the LINDY CPU Switch Junior firmware version.
• Synchronise a CPU PS/2 mouse connection
• Reset the shared keyboard and mouse.
To enter maintenance mode
Hold down the front panel key for 5 seconds until the lights on channels 1 and 2 are illuminated
together.
Whilst within maintenance mode
Press keys , , or on the main keyboard (not the numeric keypad) or the key on the
front of the LINDY CPU Switch Junior as follows:
KEY CONFIGURATION DESCRIPTION
This will reset the PS/2 mouse connection on the port that was selected when
maintenance mode was entered (this port’s video is displayed on the monitor). After
pressing the key the LINDY CPU Switch Junior will automatically return to normal
operation mode. (see section 2.8 for information on using this function)
Reset the IntelliMouse mouse connection on the port that was selected when
maintenance mode was entered (this port’s video is displayed on the monitor). After
pressing the key the LINDY CPU Switch Junior will automatically return to normal
operation mode. (see section 2.8 for information on using this function)
Causes the LINDY CPU Switch Junior to report its version number to the port that was
selected when maintenance mode was entered (this port’s video is displayed on the
monitor). The CPU attached to this port must be running a text editor or word processor
that is ready to accept keyboard input. After pressing the key the LINDY CPU Switch
Junior will automatically return to normal operation mode.
Attempts to synchronise the mouse connection on the port that was selected when
maintenance mode was entered (this port’s video is displayed on the monitor). After
pressing the key the LINDY CPU Switch Junior will automatically return to normal
operation mode. (see section 2.8 for information on using this function)
Front
Panel
Pressing the LINDY CPU Switch Junior’s front panel key causes the shared keyboard
and mouse to be reset. The reset function removes the power to the keyboard and
mouse for a few seconds and then re-powers them. The front panel power light will go
off to indicated that the power has been removed. Once the keyboard and mouse have
been reset the LINDY CPU Switch Junior will automatically return to normal operation.
The other functions of the LINDY CPU Switch Junior that deal with the CPU connections
are fully maintained during this process.
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4.3 Resetting the shared keyboard and mouse
The LINDY CPU Switch Junior is fitted with a keyboard and mouse reset function. This function
powers down the devices for a couple of seconds and resets them. The rest of the LINDY CPU
Switch Junior continues to work normally and the connections to the CPUs are unaffected. This
function is useful if the mouse has become disconnected or is to be changed for another type. It is
also useful if there is an error that has caused the keyboard or mouse to operate incorrectly.
To reset the shared keyboard and mouse, enter maintenance mode (see section 4.2). Whilst within
maintenance mode press the front panel key. The power light will go off for a few seconds and
then come on again when the keyboard and mouse have been reset. The LINDY CPU Switch
Junior will then be operating normally.
4.4 Resetting the LINDY CPU Switch Junior
The LINDY CPU Switch Junior is fitted with a hardware reset function that does not require the
power to be disconnected. The reset function is accessed using option switch 5 (see section 4.1).
This option switch is connected to the microprocessor within the LINDY CPU Switch Junior. When
switch 5 is in the ON position the LINDY CPU Switch Junior’s processor will halt all operations.
To perform a complete reset of the LINDY CPU Switch Junior, move switch 5 from the OFF
position to the ON position and then back to the OFF position. This action is equivalent to
disconnecting all the power from the LINDY CPU Switch Junior and then powering it on again as it
performs a complete microprocessor hardware reset.
4.5 Querying the LINDY CPU Switch Junior’s firmware version
For technical support purposes it is sometimes useful to know the firmware version of the LINDY
CPU Switch Junior. The LINDY CPU Switch Junior can report its firmware version using a
maintenance mode function.
To find the firmware version of your LINDY CPU Switch Junior, switch to a CPU that is showing
the DOS prompt or is running a text editor or word processor package. It doesn’t matter what
package this is provided that the characters typed in at the keyboard are displayed on the screen.
Enter maintenance mode and type 3 at the keyboard (see section 4.2 for more details). The
version number will be reported on the CPU screen as three numbers. For example, if the LINDY
CPU Switch Junior reports 118 then the firmware version is 1.18.
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5 LINDY CPU Switch Junior OSD Configuration
Options
IMPORTANT NOTE
This next section is for configuration of the LINDY CPU Switch Junior OSD 4 and 8 ports
For configuration of non-OSD models please refer to section 4.
5.1 Configuring the LINDY CPU Switch Junior OSD
The LINDY CPU Switch Junior OSD is supplied pre-configured with factory defaults which are
suitable for most applications. There are a number of more advanced options which can be set by
the user. These are stored in the LINDY CPU Switch Junior OSD’s EEPROM memory and are
retained when the power is disconnected.
The options may be changed whilst the LINDY CPU Switch Junior OSD is in configure mode. You
may enter configure mode at initial power on or whilst the LINDY CPU Switch Junior OSD is
running.
To enter configure mode at power on, switch off all the attached PCs and the LINDY CPU Switch.
Hold down the front panel key whilst powering on the LINDY CPU Switch. Remember that the
LINDY CPU Switch Junior draws its power from any attached PC via the keyboard cable and so
will power itself on when the attached PC is switched on or when the optional power adaptor is
connected. Do not release the key until the LINDY CPU Switch displays 'C' to show that it has
entered configure mode.
To enter configure mode whilst the LINDY CPU Switch is running, hold down the front panel key
for 5 seconds until the front panel display shows ‘C’.
Options are entered by typing a letter followed by a number followed by <ENTER>. Use <ESC> to
abort the entry of an option. The LINDY CPU Switch will remain in configure mode until you type
(
<ENTER>.
For example: to set hotkey option 2 type the following at the 'C' prompt
(at LINDY CPU Switch 'C' prompt)
+
<ENTER>
To exit configure mode type:
(
<ENTER>
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5.2 Screen saver time delay
LINDY CPU Switch contains a programmable screen saver which will blank the display after the
set time delay with no keyboard or mouse activity. Simply typing at the keyboard or moving the
mouse will re-enable the display. The display will flash whilst the LINDY CPU Switch is in screen
save mode.
KEYS CONFIGURATION DESCRIPTION
%
Screen saver disabled (default)
%
Blank screen after 1 minute of inactivity
%
Blank screen after 2 minutes of inactivity
%
Blank screen after 4 minutes of inactivity
%
Blank screen after 8 minutes of inactivity
%
Blank screen after 12 minutes of inactivity
%
Blank screen after 16 minutes of inactivity
%
Blank screen after 20 minutes of inactivity
5.3 Display appearance options
Options are available to change the colour scheme of the On-Screen Display and the time that the
confirmation message remains on the screen after a channel has been selected.
KEYS CONFIGURATION DESCRIPTION
'
Menu appears with magenta / blue background and green highlight (default)
'
Menu appears with red / blue background and green highlight
'
Menu appears with blue / black background and light blue highlight
'
Confirmation message remains on screen for standard time period (default)
'
Confirmation message remains on screen for short time period
'
Confirmation message remains on screen for extended time period
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5.4 Autoscan ‘lock on’ mode and delay time
LINDY CPU Switch Junior OSD can be set to select each channel in turn for a period of time set
by the Autoscan delay time. Autoscan mode is entered by typing the hotkey keys together with $.
By default, only those channels which have a powered up computer connected to them will be
scanned. Sometimes it may be desirable to scan all channels, even if the attached computer is
switched off (this will simply show a blank screen when it is selected). All the LINDY CPU Switch
Junior OSD’s ports will be scanned if option
/
is selected. Some applications may also require
the LINDY CPU Switch to power on in autoscan mode. This feature can be selected using the
/
or
/
options.
KEYS CONFIGURATION DESCRIPTION
/
LINDY CPU Switch locks on to active ports only during autoscanning (default)
/
LINDY CPU Switch locks on to every port during autoscanning
/
LINDY CPU Switch powers on in autoscan mode & locks on to active ports only
/
LINDY CPU Switch powers on in autoscan mode and locks on to all ports
7
2 seconds autoscan delay time before switching to next port (default)
7
5 seconds autoscan delay time before switching to next port
7
7 seconds autoscan delay time before switching to next port
7
10 seconds autoscan delay time before switching to next port
7
15 seconds autoscan delay time before switching to next port
7
20 seconds autoscan delay time before switching to next port
7
30 seconds autoscan delay time before switching to next port
7
60 seconds autoscan delay time before switching to next port
NOTE: Autoscan mode is ended simply by selecting a fixed channel using the on-screen menu,
the keypad, the keyboard hotkeys or the mouse.
Many modern monitors are fitted with automatic power save relays and will switch off after a few
seconds if connected to an inactive PC. If you are using such a monitor you must not use the
/ feature. Constant switching on and off of your monitor's relay will eventually damage your
monitor.
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5.5 Mouse mode and mouse switching of channels
A three button PS/2 mouse can be used to switch channels on the LINDY CPU Switch Junior by
default. To switch to the next channel, the user simply holds down the central button or wheel
button and presses the left hand button to change channel. If the user does not wish to take
advantage of this feature, it can be disabled by selecting
8, 8
or
8
. If the third button
is being used to switch the LINDY CPU Switch Junior then it is not available for use with PC
software although the function of an IntelliMouse wheel is not affected. Consequently in modes
8, 8
and
8
the LINDY CPU Switch Junior reports to the PCs that a 2 button mouse is
connected. If you wish to use the full function of a 3 button mouse or IntelliMouse for your PC
software then you should select option
8
or
8
.
The LINDY CPU Switch supports ‘Internet 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 Genius® NetMouse
Logitech® Pilot Mouse + Genius® NetMouse Pro
Logitech® MouseMan+
Standard PS/2 and IntelliMouse compatible mice can be connected to the control port. You may
configure your CPUs using Microsoft PS/2 or IntelliMouse drivers in any combination as required.
The IntelliMouse features are supported on both PS/2 and RS232 CPU connections. When using
PS/2 CPU connections, the LINDY CPU Switch Junior will automatically configure itself to the type
of mouse requested by the driver. If you are using RS232 CPU connections then you will need to
select mouse options
8 or 8 to enable the IntelliMouse features.
KEYS CONFIGURATION DESCRIPTION
8
LINDY CPU Switch channels are switchable using a 3 button mouse or IntelliMouse (default) (LINDY
CPU Switch reports 2 button mouse mode to PCs)
8
LINDY CPU Switch channels are not switchable using 3 button mouse or IntelliMouse (LINDY CPU
Switch reports 2 button mouse mode to PCs)
8
LINDY CPU Switch channels are not switchable using 3 button mouse or IntelliMouse (LINDY CPU
Switch reports 3 button mouse mode to PCs)
8
LINDY CPU Switch channels are switchable using 3 button mouse or IntelliMouse (LINDY CPU
Switch reports IntelliMouse mode to PCs)
8
LINDY CPU Switch channels are not switchable using 3 button mouse or IntelliMouse (LINDY CPU
Switch reports IntelliMouse mode to PCs)
8 Cycle between active ports only when switching with ‘hotkeys + v‘ or 3 button mouse (default)
8 Cycle between all ports only when switching with ‘hotkeys + v‘ or 3 button mouse (default)
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5.6 Keyboard hotkey combination
The keyboard hotkey combination is used to change a channel, set autoscan mode or secure the
product (so that the password needs to be typed before it can be used again). The following
keyboard hotkey combinations can be selected. These hotkey combinations are used together with
the command keys to trigger the required LINDY CPU Switch Junior function. The left and right
shift key combination is particularly suitable for extended keyboards where additional keys can be
programmed to act as a combination of other keys. Such keyboards are supplied with many
Gateway 2000 computers. Programming spare keys to trigger the hotkey combination allows
channels to be selected via a single key stroke.
KEYS CONFIGURATION DESCRIPTION
+ t
and s keys together (left or right hand keys operate) (default)
+ t
and u keys together (left or right hand keys operate)
+ s
and u keys together (left or right hand keys operate)
+
RIGHT s key
+
LEFT s and RIGHT s keys together
+
LEFT t and LEFT s keys together
+
RIGHT t and RIGHT s keys together
+
No hotkey enabled
5.7 Firmware functions (version query, mouse restore and reset)
For technical support purposes, it may be necessary to find the firmware release version for the
control software in your LINDY CPU Switch Junior. For example, if the release version is v1.02 the
response shown to
)
<ENTER> will be a brief display of the digit ‘1’, then
)
<ENTER> will
be a brief display of the digit ‘0’, then
)
<ENTER> will be a brief display of the digit ‘2’. You can
reset all of the configured options back to the factory default states by typing
)
. Use options
)
and
)
to restore mouse function on disconnected PS/2 CPU mouse connections. See
section 2.8 for full details
KEYS CONFIGURATION DESCRIPTION
)
Display firmware first digit
)
Display firmware second digit
)
Display firmware third digit
)
Restore PS/2 mouse function to the currently selected CPU’s mouse port
)
Restore IntelliMouse function to the currently selected CPU’s mouse port
)
RESET all configurations to factory default settings. An ‘r’ will show briefly on
the display to confirm that the reset has been completed
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5.8 Setting a security password
There are many situations where unrestricted access to corporate file servers or sensitive
information needs to be controlled. In such circumstances, the LINDY CPU Switch can be locked
away in a room or secure cabinet and controlled remotely. In this mode typing the keyboard
hotkeys together with 0 will blank the screen, disconnect the keyboard and mouse from all of the
computers and display ‘P’ on the LINDY CPU Switch display. Control can only be regained by
typing the correct password on the keyboard.
To set the password in configure mode, first type 3 then <ENTER>. The display on the LINDY
CPU Switch will change to show ‘=‘ and you can then type your password. The password is not
case sensitive and can be any combination of key strokes, including the function keys, but
excluding the
t
,
s
,
u
and <ENTER> keys. When you have typed in your password type
<ENTER> to register it in the stored memory. Do not worry if you type the password incorrectly,
you can always re-enter configure mode and set the password again. If you have lost the
password and the LINDY CPU Switch Junior is locked, the unit may be unlocked by powering
down the LINDY CPU Switch Junior, entering configure mode at power on (see section 5.1) and
performing a complete reset using the
I
function.
NOTE - The password consists of a combination of key strokes rather like the code to a safe. The
key strokes are not case sensitive and can include all the keys on the keyboard (except t , s ,
u
and <ENTER>). Consequently the following 'password' would be valid:
e)5('
5.9 Cascade query code
The LINDY CPU Switch Junior OSD use a special ‘query code’ to detect whether or not they are
connected to another LINDY CPU Switch Junior. By default your LINDY CPU Switch Junior OSD
uses query code AD. Another range of switches, LINDY CPU Switch Pro with firmware versions
less than 1.09 used query code EF. This was found to conflict with a small number of other (rare)
devices that used the same query code so an alternative query code was provided to ensure
compatibility. Either query code may be used but you should make sure that all cascaded LINDY
CPU Switches are set to use the same query code. If any of the cascaded LINDY CPU Switch
Pros have firmware versions less than 1.09 then the cascade query code for all the LINDY CPU
Switch Juniors and LINDY CPU Switch Pros should be set to EF.
KEYS CONFIGURATION DESCRIPTION
/
Cacade query code set to AD (default)
/
Cascade query code set to EF
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5.10 Exit configure mode
When you have finished configuring any special options, simply type ( followed by <ENTER> to
exit configure mode and return to normal operation mode. The attached computers can now be
switched on.
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Appendix A. LINDY CPU Switch Junior OSD
Configuration Summary
KEYS
CONFIGURATION DESCRIPTION
%
Screen saver disabled (default)
%
Blank screen after 1 minute of inactivity
%
Blank screen after 2 minutes of inactivity
%
Blank screen after 4 minutes of inactivity
%
Blank screen after 8 minutes of inactivity
%
Blank screen after 12 minutes of inactivity
%
Blank screen after 16 minutes of inactivity
%
Blank screen after 20 minutes of inactivity
'
Menu appears with magenta / blue background and green highlight (default)
'
Menu appears with red / blue background and green highlight
'
Menu appears with blue / black background and light blue highlight
'
Confirmation message remains on screen for standard time period (default)
'
Confirmation message remains on screen for short time period
'
Confirmation message remains on screen for extended time period
)
Display firmware first digit
)
Display firmware second digit
)
Display firmware third digit
)
Restore PS/2 mouse function to the currently selected CPU’s mouse port
)
Restore IntelliMouse function to the currently selected CPU’s mouse port
)
RESET all configurations to factory default settings. An ‘r’ will show briefly on the display to confirm that the reset has been
completed
+ t
and s keys together (left or right hand keys operate) (default)
+ t
and u keys together (left or right hand keys operate)
+ s
and u keys together (left or right hand keys operate)
+
RIGHT s key
+
LEFT s and RIGHT s keys together
+
LEFT t and LEFT s keys together
+
RIGHT t and RIGHT s keys together
+
No hotkey enabled
/
LINDY CPU Switch locks on to active ports only during autoscanning (default)
/
LINDY CPU Switch locks on to every port during autoscanning
/
LINDY CPU Switch powers on in autoscan mode & locks on to active ports only
/
LINDY CPU Switch powers on in autoscan mode and locks on to all ports
/
Cacade query code set to AD (default)
/
Cascade query code set to EF
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KEYS
CONFIGURATION DESCRIPTION
7
2 seconds autoscan delay time before switching to next port (default)
7
5 seconds autoscan delay time before switching to next port
7
7 seconds autoscan delay time before switching to next port
7
10 seconds autoscan delay time before switching to next port
7
15 seconds autoscan delay time before switching to next port
7
20 seconds autoscan delay time before switching to next port
7
30 seconds autoscan delay time before switching to next port
7
60 seconds autoscan delay time before switching to next port
8
LINDY CPU Switch channels are switchable using a 3 button mouse or IntelliMouse (default)
(LINDY CPU Switch reports 2 button mouse mode to PCs)
8
LINDY CPU Switch channels are not switchable using 3 button mouse or IntelliMouse
(LINDY CPU Switch reports 2 button mouse mode to PCs)
8
LINDY CPU Switch channels are not switchable using 3 button mouse or IntelliMouse
(LINDY CPU Switch reports 3 button mouse mode to PCs)
8
LINDY CPU Switch channels are switchable using 3 button mouse or IntelliMouse
(LINDY CPU Switch reports IntelliMouse mode to PCs)
8
LINDY CPU Switch channels are not switchable using 3 button mouse or IntelliMouse
(LINDY CPU Switch reports IntelliMouse mode to PCs)
8 Cycle between active ports only when switching with ‘hotkeys + v‘ or 3 button mouse (default)
8 Cycle between all ports only when switching with ‘hotkeys + v‘ or 3 button mouse (default)
3
Sets password – see section 5.8 for instructions.
(
Exits configure mode & returns the LINDY CPU Switch to normal operation mode.
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LINDY ELECTRONICS LTD Installation & Use – English Guide Page 33
Appendix B. Cable and connector specifications
IMPORTANT NOTE
The maximum cable lengths supported vary widely between devices and cables. It may be possible to use
cables that are longer than those specified below with certain PCs and peripherals but this cannot be
guaranteed. If you experience problems try using shorter cables.
CABLE
CONNECTION CABLE SPECIFICATION
LINDY CPU Junior LINDY CPU Junior OSD
Keyboard, monitor
and mouse to LINDY
CPU Switch Junior
All of the shared devices plug directly into the relevant ports at the front 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.
Self-Powered operation
Keyboard, monitor and mouse extension cables should be no longer than 2 metres.
Powered by optional adaptor
Keyboard, monitor and mouse extension cables can be used to increase the distance from
the LINDY CPU Switch Junior up to 10m. Most keyboards and mice will also operate at
distances of 20m.
LINDY CPU Junior LINDY CPU Junior OSD
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. Cheape r
‘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.
LINDY CPU Switch
Junior to PCs 1 to 8
Video
Video cable may be run at distances up to
10m with little loss of video quality
Video cable may be run at distances up to
30m with little loss of video quality
LINDY CPU Junior LINDY CPU Junior OSD
LINDY CPU Switch
Junior to PCs 1 to 8
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 6-pin mini-DIN female to 5-pin DIN male (readily
available). Cables should be no longer than 3 metres for operation without the optional
power supply (see section 2.4 for more details).
If the optional power supply is used then
cables may be up to 10 metres long.
If the optional power supply is used then
cables may be up to 30 metres long.
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Page 34 Installation & Use – English Guide LINDY ELECTRONICS LTD
CABLE
CONNECTION CABLE SPECIFICATION
LINDY CPU Junior LINDY CPU Junior OSD
LINDY CPU Switch
Junior to PCs 1 to 8
RS232 serial mice
These require a special converter to connect the RS232 lines present on the LINDY CPU
Switch Junior mouse ports to the RS232 port on a PC. The wiring is identical to that used by
Microsoft for their autosensing mouse adapter and is shown below:
Cables should be no longer than 10 metres or 30 metres on the OSD models
LINDY CPU Junior OSD only
Expansion port pin
assignments
Cables should be no longer The 15 way D connector located on the back of the LINDY CPU
Switch Junior OSD provides connections for the remote control module and allows an
external RS232 device to control the LINDY CPU Switch Junior.
Pin 9 = GND
Pin 11 = RxD
Other pins to be left unconnected.
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LINDY ELECTRONICS LTD Installation & Use – English Guide Page 35
Appendix C. Problem Solving
PROBLEM ACTION
Poor video quality with smearing
fuzziness or ripple.
Use screened coaxial video cables to connect your devices to the LINDY
CPU Switch Junior.
Mouse does not move cursor on
screen
Ensure that the mouse and computer are both connected to the LINDY CPU
Switch Junior before power is connected and ensure that your software is
configured to accept a Microsoft compatible mouse of the type that you have
connected (PS/2 or RS232).
OSD models
If you move the mouse and the activity indicator (dot on 7 segment display)
does not flash then the LINDY CPU Switch Junior OSD is not receiving data
from the mouse. Check the mouse connection to the LINDY CPU Switch
Junior OSD, try resetting the mouse using the reset function (section 2.7) or
re-powering the LINDY CPU Switch Junior. If you are attempting to connect
the LINDY CPU Switch Junior to a CPU with a PS/2 mouse connection that
has not been powered down then you will need to use the mouse restoration
functions
) Junior ) (see section 2.8)
Keyboard does not function or
functions intermittently. Num lock
light does not always come on
when the num lock key is pressed.
Some older keyboards were designed for use with specific computers and
are not truly AT or PS/2 compatible. These are not common but if you
experience problems try another keyboard.
Mouse consistently fails to boot
when using a Compaq integrated
keyboard / mouse model MX11800
with the LINDY CPU Switch Junior,
Windows NT 4.0 and a PS/2
connection to some types of PCs.
There are three possible solutions to this problem:
• Use a different mouse.
• Connect the LINDY CPU Switch Junior mouse connection to a serial port
on the NT 4.0 unit rather than the PS/2 port.
• Select channel 0 or a port that is not connected to an NT 4.0 box whilst
NT is booting. Use the system normally once the logon screen appears.
Mouse causes channel to change. Some cheaper mice are not fully compatible with the LINDY CPU Switch
Junior and can lose data causing the channel to be changed (if mouse
switching of channels is enabled). If you experience this problem then change
the mouse and use a Microsoft, Logitech, IBM, Compaq or Hewlett-Packard
type. Ensure that you are using a Microsoft compatible mouse driver on your
PC. Some other manufacturers’ drivers may switch the mouse to use a
proprietary mouse data format not supported by the LINDY CPU Switch
Junior. If you have unplugged and re-connected a mouse to the LINDY CPU
Switch Junior then ensure that you reset it using the mouse reset function
(see section 2.8).
Mouse jumps around the screen
after disconnecting the mouse
cable or powering down the LINDY
CPU Switch Junior.
If you have disconnected and re-connected a CPU mouse cable or you have
reset the LINDY CPU Switch Junior then the mouse data format may be out
of synchronisation with that required by the PC (PS/2 or Intellimouse). Try the
‘restore Intellimouse’ function or re-power the CPU.
Video appears to be lost after a PC
has gone into auto power down
mode. Moving the mouse and
typing at the keyboard does not
wake it up.
Some computers tested output an incomplete video signal in auto power
down mode. The on-screen menu cannot ‘lock on’ to this signal and so
cannot be displayed under these conditions. If the LINDY menu is left on the
screen and this type of auto power down occurs then the screen becomes
blank. Keyboard and mouse data is captured by the menu process and so is
not sent to the computer to cause it to wake up. The operation therefore
appears to ‘hang’. To restore the video under these conditions press escape,
return or change the channel using HOTKEYs + channel number.
Alternatively, you may wish to avoid leaving the menu on the screen if you
have a PC that exhibits this anomaly.
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Notes
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