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KVM extenders
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FAQs KVM extenders

Our FAQs will answer your questions about KVM extenders.

Do you already know your way around KVM, or do you have any questions about one of our products? Then take a look at our Product FAQs or contact us - we will be pleased to advise you.

FAQs KVM extenders

All KVM Extenders

Printouts of any documentation (manuals, installation guides) are provided in the package contents of the devices.

Manuals are also available as download.

Our extenders can use existing CAT-x cables. Please ensure that the transmission ports are not connected to any data network components (switches, router, hubs, etc.).

Such a connection could damage the devices and lead to a loss of warranty. Often the cables (fully connected and shielded) can be used for our signal transmission. However, sometimes the maximum distance or resolution cannot be reached with your cable type. Feel free to contact us when in doubt.

In part, yes. CAT-Rem systems are still available. Please ask our sales team for a quote.

If the computer module is damaged, the line probably needs to be replaced. In this case please contact our sales or support team as well.

Thanks to their architecture, most devices with DVI-D signals readjust signals on their own and therefore always display an optimised image at both consoles.

Many of our devices can be upgraded. We will be pleased to make you an offer.

Please note that we need both devices (computer and user module) to execute the upgrade since both devices must be equipped with the required units and connectors.

Twin devices are two identical, independent modules that transmit the same signals. Both modules are placed next to each other on a 19“ rack unit. Each module transmits one video, keyboard, and mouse signal.

Multi-channel extenders (MC) access multiple video channels per computer (e.g.: 2 to 4 × VGA or 2 to 4 × DVI). Keyboard and mouse signals are only transmitted once.

Most recently, we developed a solution that lets you create twin solutions for any devices housed in a 210 mm × 1U casing.

Yes. The only requirement for this are "AR" or "ARU" extenders (e.g. CATVision-ARU-CPU und -CON).

Also don't forget to add the "Power" expansion (e.g. "CV Power"). Existing systems can be upgraded ex works. Please contact our sales team for further information.

Yes. We offer single-signal extenders for transmitting, e.g., RS232, USB2.0, audio, DVI and VGA signals.

Our sales team provides more information about the devices. You can also take at look at our Signal Extenders section.

Each KVM extender that uses fibre optics provides galvanic separation, e.g.:

It depends on the employed fibres and connectors.
You need to know the....    Fibre type (multi- or single-mode)

  •     Fibre diameter ( 50 or 62,5 or 9 / 125 μm)
  •     Fibre quality (e.g. 2.000 MHz*km, OS1)
  •     Connector type (e.g. LC duplex/SC duplex)
  •     Number of available fibres

If in doubt, please contact our sales team.


For some combinations (e.g. a resolution of 1680 × 1050), CATVision cannot properly process the DDC information.

In this case, please ask our sales or support team for DDC adapters supporting the desired resolution.

Can't find the answer to your question?

We're constantly working on expanding our FAQs. If you didn't find the answer to your question, please use the contact form or call us. We will be pleased to help you!

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Send an e-mail to

or free of charge via phone
+800 5509 6000*

This service number cannot be reached from some regions or service providers. 

In that case, you can still call us on +49 271 23872-488

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