Lindy C5 Pro 39393 User Manual

© LINDY ELECTRONICS LIMITED & LINDY-ELEKTRONIK GMBH - FIRST EDITION (August 2003)

KVM Extender C5 Pro

User Manual English

LINDY Art No. 39393

English Manual

LINDY KVM Extender C5 Pro Installation and Use page 2

About this manual

LINDY KVM Extender C5 Pro - Installation and Use www.lindy.co.uk
First edition (October 2003)
(c) 2003 LINDY Computer Connection Technology.

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.

Safety Information

• For use in dry, oil free indoor environments only.

• Warning - live parts contained within the power adapter.

• No user serviceable parts within power adapter - do not dismantle

• Plug the power adapter into a socket outlet close to the Extender C5 unit that it is powering.

• Replace the power adapter with a manufacturer approved type only.

• Do not use the power adapter if the power adapter case becomes damaged, cracked or broken or if you

suspect that it is not operating properly.

• If you use a power extension cord with the Extender C5, 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 information

LINDY warrants that this product shall be free from defects in workmanship and materials for a period of three
years from the date of original purchase. If the product should fail to operate correctly in normal use during the
warranty period, LINDY will replace or repair it free of charge. Any faulty items are to be returned to LINDY at the
owner’s expense. No liability can be accepted for damage due to misuse or circumstances outside LINDY’s control.
Also, LINDY will not be responsible for any loss, damage or injury arising directly or indirectly from the use of this
product. LINDY’s total liability under the terms of this warranty shall in all circumstances be limited to the
replacement value of this product. This warranty goes on top of any applicable legal regulation and does not limit
any customer rights compared to the legal regulations.

Trademarks

All trademarks mentioned in this manual are acknowledged to be the property of the respective trademark owners.

Compaq is a registered trademark of Compaq Computer Corporation.

Hewlett-Packard is a registered trademark of Hewlett-Packard.

IBM, PC/AT, PS/2, RS/6000 and ThinkPad are registered trademarks of International Business Machines
Corporation.

Microsoft and Windows are registered trademarks, and IntelliMouse is a trademark of Microsoft Corporation.

Logitech, MouseMan+ and Pilot Mouse+ are trademarks of Logitech Inc.

Velcro is a trademark of Velcro USA Inc.

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Radio Frequency

A Category 5 (or better) twisted pair cable must be used to connect the LINDY Extender C5 units in order to
maintain compliance with radio frequency energy emission regulations and ensure a suitably high level of immunity
to electromagnetic disturbances.

All other interface cables used with this equipment must be shielded in order to maintain compliance with radio
frequency energy emission regulations and ensure a suitably high level of immunity to electromagnetic
disturbances.

European EMC directive 89/336/EEC
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.

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........................................................................................................ 6

1.1 Supplied items............................................................................................................. 7

2. Installation......................................................................................................... 9

2.1 Extender C5 configuration switch settings.................................................................. 9

2.2 Mounting the Extender C5 module............................................................................ 12

3. Connections.................................................................................................... 13

Connections at the LOCAL module.................................................................................. 13

3.1 KVM+A multi-cable connection................................................................................... 13

3.2 Serial cable connection................................................................................................ 14

3.3 Twisted pair connection.............................................................................................. 14

Connections at the REMOTE module............................................................................... 15

3.4 Keyboard, Video and Mouse connections................................................................... 15

3.5 Twisted pair, Power and Serial connections............................................................... 15

3.6 Audio connections....................................................................................................... 16

4. Operation........................................................................................................... 18

4.1 Power and activity indicators....................................................................................... 18

4.2 Locking and unlocking the system............................................................................... 19

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5. Special Configuration....................................................................................... 20

5.1 Configuration.............................................................................................................. 20

5.2 What are hotkeys? ...................................................................................................... 20

5.3 Configuration mode.................................................................................................... 21

5.4 Password setting........................................................................................................ 22

5.5 Password override...................................................................................................... 22

5.6 Hot plugging and Mouse restoration.......................................................................... 23

5.7 Video compensation.................................................................................................. 25

5.8 Skew Compensator.................................................................................................... 27

5.9 Producing a Skew compensator report...................................................................... 28

5.10 Miscellaneous settings.............................................................................................. 29

6. Flash upgrade procedure.................................................................................. 30

6.1 Downloading the upgrade files.................................................................................... 30

6.2 Creating a startup disk................................................................................................ 31

6.3 Reconfiguring the LOCAL connections....................................................................... 32

6.4 Reconfiguring the REMOTE connections................................................................... 33

6.5 Returning all connections to their usual states........................................................... 33

7. Troubleshooting................................................................................................. 34

8. Extender C5 Accessories.................................................................................. 36

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1. Introduction

Thank you for purchasing the LINDY Extender C5 Pro set which allows you to place the controlling keyboard,
video monitor, mouse, audio accessories (and also a serial device) up to 200 metres from a system. The LINDY
Extender C5 Pro set consists of two modules: a local module that attaches to your computer system and a
remote module to which the peripherals are connected. The long distance link between the two modules is
made via Category 5, or higher, twisted pair cabling.

Internal circuitry within the remote module ensures crisp video images by automatically compensating for the
length of the twisted pair cable run.

Throughout this document, the LINDY Extender C5 Pro is

commonly abbreviated to Extender C5

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1.1 Supplied items

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2. Installation

The installation of the Extender C5 set is straightforward and can best be achieved in most cases by
following these stages for each module:

• Check or set the configuration switch settings

• Mount the module

• Connect the cables

2.1 Configuration switch settings

The basic operations of the LOCAL and REMOTE modules are controlled by the banks of four switches located
on the side of each module. The switches are monitored at all times and may be changed when power is on or
off (the only exception to this rule is switch 1 of the LOCAL module which initiates slightly different functions
depending on the power state when it is switched).

LOCAL Switch 1

OFF: Normal operation
ON: (Before power is applied) Places the LOCAL module into flash upgrade mode so that the internal

software can be changed. (See section 6. Flash upgrade procedure)

ON: (Whilst power is applied) Places the REMOTE module into password override mode. This allows any

pre-configured passwords to be altered – particularly useful when they have been lost or forgotten. (See

section 5.5 Password override.)

Note: When shipped, all switches are set in the OFF positions and this will produce normal operation with
normal microphone input (at the REMOTE module.)

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LOCAL Switch 2

OFF: Normal operation.
ON: Set transparent mode. Use this setting if the Extender C5 modules are to be used with KVM switches

that are not manufactured by LINDY Electronics. Cascaded KVM switches often use special signals to
set or identify conditions. In transparent mode, the Extender C5 modules will pass the signals without
attempting to interpret them.

LOCAL Switch 3

OFF: Microphone input on REMOTE module. Use this setting if a standard mono-channel microphone is

connected to the microphone input on the REMOTE unit.

ON: Stereo line-in input on REMOTE module. Use this setting if a stereo input is applied to the microphone

input on the REMOTE unit.

LOCAL Switch 4

OFF: Normal operation.
ON: Suspend operation and reset the LOCAL module. Use this setting momentarily to produce the same

effect as removing and restoring power if incorrect operation has occurred. Return the switch to the OFF
position to allow normal operation to continue.

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REMOTE Switch 1

OFF: Normal operation.
ON: (Before power is applied) Places the REMOTE module into flash upgrade mode so that the internal

software can be changed. (See section 6. Flash upgrade procedure)

Note: When shipped, all switches are set in the OFF positions and this will produce normal operation.

REMOTE Switches 2 and 3

Switches 2 and 3 determine which two keyboard keys (when pressed in unison) are to be designated as
‘hotkeys’. Hotkeys signal to the REMOTE module that the next key to be pressed is a special configuration
command for the module and is not to be passed to the computer system.

2 OFF Hotkeys = CTRL and SHIFT
3 OFF

2 OFF Hotkeys = ALT and SHIFT
3 ON

2 ON Hotkeys = CTRL and ALT
3 OFF

2 ON Hotkeys disabled
3 ON

REMOTE Switch 4

OFF: Automatic video compensation mode. In this mode circuitry within the REMOTE module will adjust the

video compensation settings automatically at power on to match the length of the cable run (providing
the twisted pair to both modules is connected and both modules are switched on).

ON: Manual video compensation mode. Use this mode to bypass the automatic compensation circuitry if

manual adjustment is required to improve the video quality. Automatic video compensation disabled.

(Please see section 5.7 ‘Video compensation.’)

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2.2 Mounting a module – desk or rack

The Extender C5 modules can be situated on a desk (or floor) or alternatively, for larger installations, mounted
within optional rack mount chassis units.

Desk mount

Apply the supplied self-adhesive rubber feet to the underside of
the module(s)

Rack mount

Note: The module switches are not accessible once it is inserted into
the rack, therefore, check all settings before insertion.

1 Place the rack securing plate (available as a separate kit) onto the front of the module and secure it with

the two countersunk screws.

2 Orientate the module on its side so that its labelled face is the correct way up and the securing plate is

facing away from the rack.

3 Slide the module into the required rack position. The rectangular cut-out in the front upper lip of the rack

allows the two screws on the module’s upper edge to slide through.

4 The rack mount chassis has a series of holes in its floor that are spaced to accommodate the two

screws on the module’s lower edge. Ensure that the screws correctly locate into the two holes of the
chosen slot. The rack securing plate on the module should now be flush with the front of the rack mount
chassis.

5 Use the third (pan-head) screw, in the top hole of the rack securing plate to fasten the module to the

rack.

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3. Connections

The naming of the LOCAL and REMOTE modules relate to their proximity to the computer system. Hence, the
LOCAL module connects directly to the system, while the REMOTE is at the other end of the twisted pair cable
and attaches to the keyboard, mouse, etc.

Connections at the LOCAL module

3.1 KVM+A multi-cable connection

Most of the connections between the computer system and the LOCAL module are made via the supplied multi­cable. This has a single connection to the module, is two metres in length and splits out to the keyboard, video,
mouse, microphone and speaker ports of the system.

1. Attach the supplied KVM+A multi-cable to the 25-way socket at the end of the LOCAL module.

2. At the other end of the KVM+A cable, attach the keyboard, mouse and video, microphone, and speaker
connectors to the appropriate sockets at the rear of the computer system. On most systems the
appropriate ports should be labelled and colour coded in a similar way to the cable connectors:

Monitor Blue
Keyboard Purple
Mouse Mid green
Speaker Light green
Microphone Pink (or maroon)

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3.2 Serial cable connection

The Extender C5 set offers the option to attach an RS232 serial device (such as a touch screen input) via the
remote link. The link supports software or hardware handshaking up to a maximum baud rate of 56 Kb/s. To
make the serial connection between the LOCAL module and your computer system, use the supplied serial link
cable.

1 Attach the male connector of the serial link cable to the 9 pin port on the LOCAL module.
2 Connect the other end of the serial link cable to the appropriate serial port of the computer system.

3.3 Twisted pair connection

The link between the LOCAL and REMOTE modules is made via twisted pair cable, specified to Category 5 or
higher. Ensure that the total twisted pair cable length (including patch boxes) does not exceed 200 metres.

1 Insert the connector from the twisted pair cable link into the socket.

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Connections at the REMOTE module

3.4 Keyboard, video and mouse connections

The connections to the keyboard, video monitor and mouse are all made to the sockets at one end of the
REMOTE module.

1 Attach the lead from the monitor to the blue D-type socket on the REMOTE module.
2 Connect the keyboard lead to the purple mini-DIN socket on the REMOTE module.
3 Insert the keyboard lead into the green mini-DIN socket on the REMOTE module.

3.5 Twisted pair, power and serial connections

1 Insert the connector from the twisted pair cable link into the socket.
2 Attach the output connector of the power supply to the socket at the front edge of the REMOTE module.
3 Insert the IEC connector of the supplied power lead into the corresponding socket of the power supply.

Connect the other end of the power lead into a nearby mains socket.

4 If the serial connection to be used, attach the lead from your serial device to the 9 way male connector

on the REMOTE module.

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3.6 Audio connections

Audio connections are available at the two 3.5” jack sockets mounted
on the side (same side as the switch bank) of the REMOTE module.

Note: The microphone input has a dual function whereby it can either support a mono-channel microphone or
alternatively receive stereo line input. Switch 3 on the LOCAL module controls the setting of this port: LOCAL
switch 3 OFF - microphone, LOCAL switch 3 ON - stereo line in.

1 Connect the microphone (or stereo line input) plug into the REMOTE module microphone socket.

(Note: Ensure that the setting of switch 3 on the LOCAL module matches the input to this socket:
OFF - microphone; ON – stereo line input)

2 Connect the speaker plug to the REMOTE module speaker socket.

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Note: When the REMOTE module is rack mounted, the audio connections must be made after the module has
been fixed in place. Access is required to the rear and above the rack. Remember to remove the audio
connections before attempting to slide out the REMOTE module.

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4. Operation

4.1 Power and activity indicators

On the front panel of both modules are small recessed indicators which provide confirmation of power and
activity, as follows:

• Constant red – power applied, no communication activity.

• Flickering red - power applied, mouse or keyboard activity occurring.

• Slow flashing red – module is in flash upgrade mode.

Note: Both modules contain internal automatic cut-out fuses to protect against power surges. To reset, remove
power (or, for the LOCAL module, the keyboard connection) from the module for one second and then
reconnect.

General Use

In use, the Extender C5 modules should be transparent - the system and its peripherals should operate exactly
as normal, the only difference being that they are now up to 200 metres apart.

In some installations, you may see some ‘shadows’ to the right of high contrast screen characters. This is
caused by an incorrectly selected video compensation setting. In the majority of cases the automatic video
compensation circuitry will correct such occurrences. However, it may be necessary to manually adjust the video
compensation settings or in extreme cases to install an optional correction module. (See section 5.7 ‘Video

compensation.’ )

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4.2 Locking and unlocking the system

In situations where the computer system (and the LOCAL module) can be locked away the Extender C5 set
offers a viable security system to deter unauthorised use. Once a password has been set, a simple key
sequence allows the system to be quickly and securely detached from its peripherals. Only the correct password
will reconnect the remote and local modules.

To lock the system

1 First set a password. For further details, please refer to

section 5.4 ’Password setting.’

2 Simultaneously press the currently configured hotkeys

(by default, b and j)along with L.

The screen will go blank and the three keyboard
indicators will begin alternately flashing between the
’Num Lock’ and ’Scroll Lock’, and ’Caps Lock’. This
sequence indicates that a password is required.

To unlock the system

1 Enter the correct password and press f.

Note: Passwords are NOT case sensitive.

Note: If an invalid password has been entered and the keyboard indicators are not flashing as described

above press f to clear the incorrect attempt.

2 If the correct password is entered, the screen will be restored and normal operation can continue.

To enable the video

Simultaneously press the currently configured hotkeys (by default, b and jalong with 1. This
command will be required to restore the video if b and jalong with L is used when no password

has been set.

To disable the video

Simultaneously, press the currently configured hotkeys (by default, b and j) along with 0.

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5. Special configuration

5.1 Configuration

You can alter the way that the Extender C5 modules operate to suit your requirements. This is done using the
configuration mode and you can affect the following settings:

• Password setting – allows you to lock the remote module to prevent unauthorized system access.

• Mouse restoration and settings – allows you to restore mouse operation and also to change the mouse

type.

• Video compensation – allows you to manually adjust the video compensation settings.

• Miscellaneous functions

5.2 What are hotkeys?

Hotkeys are two normal keyboard keys that, when pressed simultaneously with a third key, signal to the
Extender C5 modules that you are sending a message specifically to them and not to the computer. The hotkeys

are ordinarily b and j, while the third key determines what you want the modules to do.

If the standard b and j hotkeys are also needed for computer tasks, you can change them for another

combination using switches 2 and 3 on the REMOTE module:

2 OFF Hotkeys = b and j (default setting)

3 OFF

2 OFF Hotkeys = a and j

3 ON

2 ON Hotkeys = b and a

3 OFF

2 ON Hotkeys disabled
3 ON

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5.3 Entering, using and exiting configuration mode

To enter and use configuration mode:

1 Simultaneously press the currently configured hotkeys

(by default, b and j) along with f

The three keyboard indicators (‘Num Lock’, ‘Caps Lock’

and ‘Scroll Lock’) will now begin to flash in sequence to
show that you are in configuration mode.

2 Press the first letter of the required configuration option,

for instance F

All three keyboard indicators will illuminate continuously.

3 Press the number of the required configuration option, for

instance 8

The ‘Scroll Lock’ indicator will extinguish, leaving the ‘Num Lock’ and

‘Caps Lock’ indicators lit.

4 Press f to confirm your option

The three keyboard indicators (‘Num Lock’, ‘Caps Lock’ and
‘Scroll Lock’) will now begin to flash in sequence again.

To exit from the configuration mode:

1 Within configuration mode, the three keyboard indicators should be flashing in sequence to show that

the module is ready to receive a new command.

2 Press f.

The three indicators will return to their normal states.

Num

Lock

Caps

Lock

Scroll

Lock

Num

Lock

Caps

Lock

Scroll

Lock

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5.4 Password setting

Password protection allows you restrict access to the system only to authorised personnel. A password first
needs to be set and then, using the keyboard attached to the REMOTE module, a simple key sequence allows
the system to be quickly and securely detached from its peripherals.

To set a password

1 Simultaneously, press the hotkeys (by default, b and j) along with f to enter configuration

mode.

2 Press P followed by f.

3 Now enter your new password, within the following constraints:

• Passwords are NOT case sensitive,

• Passwords may be any length from 1 character to a maximum of forty characters,

• The following keys may NOT be used: b, a, j or f.

4 When you have entered the password, press f to signal its completion.

5 Press f once more to exit configuration mode.

For full details about how to lock and unlock the system using your password, please see section 4.2 ‘Locking

and unlocking the system.’

5.5 Password override

This mode allows you to override the password that has been set at the REMOTE module and place it into
configuration mode so that a new one may be set. This feature is particularly useful when passwords have
been lost or forgotten.

To override the REMOTE password

1 Remove power from the REMOTE module.

2 With power to the system and LOCAL module still applied, change LOCAL switch 1 to the

ON position.

3 Re-apply power to the REMOTE module. The REMOTE module will go directly into

configuration mode so that the old password can be cleared and a new one set.

• To clear a password: (within configuration mode) Press P followed by f and

followed by f again.

• You can now enter a new password using the procedure outlined in steps 2 to 5 of

section 5.4 ‘Password setting’, or press f to exit configuration mode.

4 Return LOCAL switch 1 to it’s OFF position.

Note: If switch 1 remains ON, then the REMOTE module will enter configuration mode
whenever it is repowered and will not operate normally.

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5.6 Hot plugging and mouse restoration

It is strongly recommended that you switch off the computer system before attempting to connect it via the
Extender C5 modules. However, if this is not possible then you need to ‘hot plug’ the Extender C5 modules
while power is still applied to the system. There is not normally a danger of damage to the system, however,
when mouse communications are interrupted, often they fail to reinitialise when reconnected. Extender C5
modules provide a feature to reinstate mouse communications once the necessary connections have been
made.

There are two main types of data formats used by current PC mice; these are the older ‘PS/2’ format and the
more recent ‘IntelliMouse’ format introduced by Microsoft. These use slightly different data arrangements and it
is important to know which type was being used before you hot-plugged the Extender C5 modules. The previous
setting depends both on the type of mouse and the type of driver as various combinations of PS/2 and
IntelliMouse are possible. Using the incorrect restore function may produce unpredictable results and require the
system to be rebooted.

Which restore setting do I use?

The general rule is that unless both the mouse and the driver are both IntelliMouse compatible then
you need to restore the mouse as ‘PS/2’.

Recognising an IntelliMouse style mouse

The IntelliMouse format was introduced to support, among other features, the scroll wheel function.
If your mouse has a scroll wheel, then it is likely to support the IntelliMouse format. If you have a
Microsoft mouse, then it will usually state that it is an IntelliMouse on its underside label.

Recognising an IntelliMouse driver

Before hot plugging your Extender C5 (or afterwards using only keyboard control), access the
Windows Control Panel and select either the Mouse option (on Windows NT, 2000 and XP) or the
System option (on Windows 95, 98, ME). Look for the name of the driver, which will usually include
the words PS/2 or IntelliMouse.

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To restore mouse operation when hot plugging:

1 Carefully connect the Extender C5 modules to the system and its keyboard, mouse, monitor,

audio and serial device.

2 Simultaneously, press the hotkeys (by default, b and j) along with f to enter

configuration mode.

3 Enter the appropriate restore function code:

• PS/2 – press M 6 f

• IntelliMouse – press M 7 f

4 To exit configuration mode, press f.

5 Move the mouse a short distance and check for appropriate onscreen cursor movement. If

the mouse cursor darts erratically around the screen, then cease moving the mouse. This is
an indication that the chosen restore function is incorrect. Try again using the other restore
function.

Note: The restore functions predict the likely mouse resolution settings but may not restore
the exact speed or sensitivity settings that were originally set.

Microsoft and Logitech – specific mouse settings

In certain installations some Logitech mouse drivers may lose the action of the mouse buttons when
used with the standard ‘Microsoft compatible’ signalling protocol used between the modules. To
solve this problem, select the ‘Logitech compatible’ mouse signalling protocol.

To change mouse signalling protocols

1 Simultaneously, press the hotkeys (by default, b and j) along with f to enter

configuration mode.

2 Enter the appropriate protocol code:

• Microsoft compatible – press M 3 f

• Logitech compatible – press M 4 f

3 To exit configuration mode, press f

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5.7 Video compensation

The Extender C5 incorporates video compensation circuitry to maximise the picture quality for any given length
of twisted pair cable. The amount of video compensation required increases proportionally with the length of
cable run that is being used.
The Extender C5 can automatically correct the video compensation settings for any length of cable, however in
certain circumstances you may wish to finely adjust and fix the compensation level to suit personal preferences ­this can be done by switching to manual compensation mode.

To display a suitable high contrast image

The best way to clearly view the effects of compensation is to display a high contrast image, with vertical edges,
on the screen.

• Open a word processor, type the capital letter ‘H’, or ‘M’ and increase the point size to 72 or higher. For

best results, the background should be white and the character should be black.

• A BLACK shadow on the right of the character indicates UNDER compensation.

• A WHITE shadow on the right of the character indicates OVER compensation.

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To manually adjust the video compensation

1 Change REMOTE switch 4 to the ON position.

2 Simultaneously, press the hotkeys (by default, b and j)

along with f to enter configuration mode.

The three keyboard indicators (‘Num Lock’, ‘Caps Lock’ and ‘Scroll
Lock’) will now begin to flash in sequence. The speed of the
sequence indicates the level of compensation currently
applied: the slower the rate, the less compensation is being applied.

3 While watching the displayed high contrast screen image, now adjust the video compensation setting

using the following keys:

• Optionally press F 2 f to make the circuitry calculate and apply an automatic

compensation level – you can use this as a starting point for your fine tuning.

• Press w to increase compensation by one fine step,

• Press { to increase compensation by one coarse step,

• Press g to select the neutral setting (no compensation),

• Press } to decrease compensation by one coarse step,

• Press y to decrease compensation by one fine step.

Note: If the monitor goes blank and switches off (due to extreme over compensation)

press the g key to restore it.

4 When no shadows are visible and the displayed images have crisp edges, press f to exit

configuration mode.

The new compensation setting will be stored, even when power is removed or if a complete

reset is initiated. The setting should not require further changes, unless the cabling
arrangement is altered.

Note: If REMOTE switch 4 is returned to it’s OFF position, the video compensation level will

be recalculated and set at the next power on.

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If video compensation cannot solve the problem

If automatic and manual compensation is unable to solve the problem, an additional module called a
‘Skew Compensator’ may be required. Please see the next section for details.

5.8 The Skew Compensator

The twisted pair cabling supported by the Extender C5 set (category 5, or higher) consists of four
pairs of cables. Three of these pairs are used by the modules to convey red, green and blue video
signals to the remote video monitor. Due to the slight difference in twist rate between these three
pairs, the red, green and blue video signals may not arrive at the monitor together. This is visible as
seperate colour shadows on high contrast screen images. This effect is particularly apparent when
using higher screen resolutions and some types of category 5e cables. In this situation, Lindy
recommend the use of an optional module called the ‘Skew Compensator’ (Part No. 39389). This
manually adjustable, passive device can apply fine timing changes to the video signals ensuring they
arrive together thus removing the colour separation. The REMOTE module includes a skew report
function that indicates how to set the multiple switches on the Skew Compensator. This report
function can also be a useful tool in determining if a skew compensator is required.

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5.9 To produce a skew compensator report

1 Ensure that the video image is correctly compensated using the procedure outlined in the

previous section (the report will be more accurate if internal compensation is correctly
applied).

2 Open an application that can display typed keys as screen characters - e.g. a word

processor or Windows Notepad. The skew report will be written to the application by
generating a series of ‘faked’ key presses.

3 Simultaneously, press the hotkeys (by default, b and j) along with f to enter configuration

mode.

4 Enter one of the following codes, depending on the type of keyboard being used:

• QWERTY keyboard (i.e. English, German), press F 3

• AZERTY keyboard (French), press F 4

The screen will go blank for a few seconds whilst the measurements are made. When the picture is restored, a
report, similar to that shown below will be generated.

5 Press f to exit configuration mode. Communicate the report findings to LINDY technical support for

full advice on whether a Skew Compensator is required.

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5.10 Miscellaneous settings

The following are configuration settings within the modules that are not covered in other sections of
this guide. These can be achieved once within configuration mode by pressing the indicated keys:

Report Extender C5 firmware version - F 1 f

Before initiating this command, ensure that the system is running an application that can display
typed keys as screen characters - e.g. a word processor or Windows Notepad. The current firmware
version will be written to the application in the form of the letter ‘V’ followed by three numbers - for
example V118 means version 1.18.

Reset all configuration options to default states – F 8 f

Returns all user configurable options to the settings that are installed at manufacture. The password
will be cleared; however, the current video compensation setting will not be reset.

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6. Flash upgrade procedure

As part of the continual development and improvement process across the range of LINDY products, software
upgrades are occasionally made available. The LOCAL and REMOTE modules both contain internal flash
memory and LINDY’s unique keyboard-link upgrade technique allows you to utilise software upgrades in a
straightforward manner.

Note: It is important to upgrade both the LOCAL and REMOTE modules together so that they are both running
the same new version of software.

Note: To upgrade the REMOTE module, a special keyboard connection cable is required. This cable must have
6pin mini-DIN male to 6pin mini-DIN male plugs with all lines connected - this is a common cable used with KVM
switches.

To perform a flash memory upgrade, you need to perform the
following stages:

• Download upgrade files from the LINDY website

• Create a startup diskette and copy the files to it

• Reconfigure the LOCAL module connections and begin

• Reconfigure the REMOTE module connections and begin

• Return all connections to their usual states

6.1 Download the upgrade files

To download the files

1 Access the LINDY Electronics Ltd. website (www.lindy.com), enter the download section. Choose the

upgrade option that best suits your requirements and download it to your system.

2 Decompress the downloaded file. Depending on the chosen option, there will be collection of suitable

files.

As a minimum, there should be the following files:

AUTOEXEC.BAT – directs the computer to run the upgrade programs.
XKVMxxx.EXE – this is the upgrade program that automatically determines which module is
connected and sends the appropriate firmware file.
XGLOCxxx.HEX – this is the firmware file for the LOCAL module.
XGREMxxx.HEX – this is the firmware file for the REMOTE module.

Where xxx is the upgrade version number.

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6.2 Create a startup disk

For this stage you will need a blank 3½ floppy diskette that is either blank or has existing contents that are no
longer required. Depending on your operating system, use one of the following to create a startup disk:

To create a startup disk in Windows XP

1 Insert a disk into the floppy disk drive.

2 Select ‘Start’ and then ‘My Computer’.

3 Right mouse click on the ‘3½ Floppy (A:)’ icon and select ‘Format’.

4 Check the ‘Create an MS-DOS startup disk’ box and select ‘Start’.

To create a startup disk in Windows 95/98/Me

1 Insert a formatted disk into the floppy disk drive.

2 Select ‘Start’, then ‘Settings’ and then ‘Control Panel’.

3 Double click on the ‘Add/Remove Programs’ icon.

4 Select the ‘Startup Disk’ tab.

5 Click ‘Create Disk’ and follow the instructions.

To create a startup disk in Windows 95/98 (alternative method)

1 Insert a disk into the floppy disk drive.

2 Right mouse click on the ‘3½ Floppy (A:)’ icon and select ‘Format’.

3 Select the ‘Full format’ option and ensure that the ‘Copy system files’ box is checked.

4 Select ‘Start’ to format the disk.

To create a startup disk from MS-DOS or a DOS window within Windows 95/98

1 Insert a disk into the floppy disk drive and check that the drive
is configured as drive A (it usually is).

2 At the DOS prompt (C:\>) type:

FORMAT A: /S

and follow the instructions given by DOS.

Copy the downloaded files to the disk

Once the diskette has been formatted, using Windows Explorer or the My Computer option, copy the
downloaded and decompressed files from your computer to the floppy diskette.

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6.3 Reconfigure the LOCAL connections and begin

1 On the computer from which you will run the upgrade, ensure that its BIOS settings will allow it to boot

from the floppy disk drive, rather than booting immediately from the hard drive.

2 Switch off the computer and disconnect the twisted pair cable from the LOCAL module.

3 On the KVM+A multi-cable, leave the

keyboard connector attached to the
keyboard port of the computer.
Disconnect the KVM+A multi-cable
video and mouse connectors from the
ports on the computer.

4 So that you can check the upgrade

progress, connect a monitor directly to
the video port of the computer.

5 On the LOCAL module, change switch

1 to the ON position. Ensure that the
upgrade disk is in the floppy disk drive
of the computer.

6 Switch on the computer. The upgrade

process will start automatically and
confirmation will be given on screen.

7 Switch off the computer and disconnect the KVM+A multi-cable. Leave the monitor connected and the

upgrade disk in the floppy disk drive.

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6.4 Reconfigure the REMOTE connections and begin

1 Disconnect all cables from the REMOTE module and take it to the computer.

2 Use a ‘KVM switch-type’ keyboard
cable (6 pin mini-DIN male to 6 pin
mini-DIN male plugs with all lines
connected) – not supplied. Attach
one end of the cable to the keyboard
port of the computer. Connect the
other end of the cable to the
keyboard port of the REMOTE
module. This is the only connection
required.

3 On the REMOTE module, change
switch 1 to the ON position.

4 Attach the power supply unit to the
POWER input of the REMOTE
module and connect the mains lead
to a nearby wall socket.

5 Switch on the computer. The upgrade

process will start automatically and confirmation will be given on screen.

6 Switch off the computer and disconnect the REMOTE module. Return REMOTE switch 1 to the OFF

position.

6.5 Return all connections to their usual states

Once the upgrade process has been completed, perform the following to return the system to its previous state.

1 Ensure that switch 1 on both the LOCAL and REMOTE modules is set to the OFF positions.

2 Refer to section 3 ‘Connections’ for detailed instructions on correctly connecting the LOCAL and

REMOTE modules to the computer, its peripherals, the REMOTE power supply and the twisted-pair
cable.

3 Remove the diskette from the system and reboot. The upgrade process is now complete.

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7. Troubleshooting

If you experience problems when installing or using the Extender C5 modules please check through this section
for a possible solution.

Video image at the REMOTE module is distorted or shadows appear to the right of displayed objects.

Video compensation is required to compensate for the length of the twisted pair cable being used. If video
problems persist:

• Please refer to section 5.7 ‘Video compensation.’

• If the overall video image is ‘fuzzy’ and/or has coloured shadows you may need to use the optional C5

Series Skew Compensator. This stand-alone passive module allows you to finely tune the red, green
and blue video signal timings (each of which is fed along separate twisted pairs) to overcome most
colour separation problems. Please refer to section 5.8 ‘Skew Compensator.’

No video image is received at the REMOTE module

• Check that the power/activity indicators are lit on the LOCAL and REMOTE modules - if they are not,
then there is a power problem. When keys are pressed or the mouse is moved, check that the indicators
flicker – if they do not then there could be a twisted pair link problem or a problem with one of the
modules.

• Check that the Category 5 (or higher) cable is wired correctly as per the diagram in the section 5.8
‘Skew Compensator’.

• If possible, try using an alternative twisted pair connection between the modules.

• If the REMOTE module is severely over compensated, the monitor may not be able to display a picture.

Try manually reducing the video compensation. Please refer to section 5.7 ‘Video compensation.’

• Temporarily disconnect the video link to the LOCAL module, connect a monitor directly to the computer
video port and check for a correct video image output.

Power is applied via the power supply but REMOTE module operation has stopped.

• Each module has an internal automatic cut-out fuse to protect against power surges. To reset, remove
power from the module for one second and then reconnect.

The on-screen mouse pointer does not respond to mouse movements

• The mouse connection may have been interrupted. Either, reboot the system and re-power the
REMOTE module power supply, or try using the mouse restoration command. Please refer to section

5.6 ‘Hot plugging and mouse restoration.’

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Sound from the microphone cannot be heard or is very quiet

• Check the setting of LOCAL switch 3 – if a microphone is connected at the REMOTE module, the switch
should be set to OFF.

Sound input from the stereo line input is distorted and only one channel is working

• Check the setting of LOCAL switch 3 – if a stereo line input is connected at the REMOTE module, the
switch should be set to ON.

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8. Extender C5 Accessories

The following related C5 Series items are available:

LINDY C5 Skew Compensator (Part No. 39389)

Removes colour split in video signals caused by certain Cat 5e and 6 cables. Required only in certain
installations with long cable lengths and high video resolutions.

LINDY C5 Series Rack mount chassis (Part No. 39388)

This 19” chassis allows multiple C5 Series modules to be neatly arranged within a standard cabinet. Securing
plates and screws are supplied separately.

LINDY C5 Series Power distribution module (Part No. 39386)

Provides power for up to four C5 Series modules to reduce mains power socket requirements.

LINDY C5 Series Rack mount securing plates

For Extender C5 Local module (Part No. 39363)
For C5 Series Skew Compensator (Part No. 39369)
C5 Single Blanking Plate (Part No. 39361)
C5 Quad Blanking Plate (Part No. 39362)