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KVM2Ethernet image

KVM2Ethernet

Frequently Asked Questions

  1. Does KVM2Ethernet work with the Gigabit Ethernet interface only?
  2. How can I verify whether my system has Gigabit Ethernet?
  3. How many frames per second can KVM2Ethernet transfer?
  4. Does KVM2Ethernet reduce the resolution of the images it captures in order to transfer it over the USB bus?
  5. Can KVM2Ethernet work on Windows NT, Windows 3.x/95/98/SE/ME?
  6. The video mode that I am using is not listed in the list of supported modes for KVM2Ethernet. Can KVM2Ethernet capture it?
  7. What Linux kernel does KVM2Ethernet support? Is the driver's code open source?
  8. Does KVM2Ethernet work with the older legacy PS/2 keyboard and mouse interface?
  9. What kind of performance will KVM2Ethernet yield when used over the Internet?
  10. Images grabbed from some sources appear to be slightly shifted right or left. How this can be fixed?
  11. Can I connect two or more KVM2Ethernet devices to one computer and capture signals simultaneously? What is the resulting rate of capture for each KVM2Ethernet?
  12. With what software can I interpret the digital signal coming out of the Ethernet port of the KVM2Ethernet device?
  13. Does the frame compression on KVM2Ethernet hamper the quality of the output?
  14. Is KVM2Ethernet software compatible with MAC OS?
  15. Can the KVM2Ethernet be used through a switch? I want to maintain my LAN interface and/or connect another Ethernet devices to my computer, but it has only 1 Ethernet port.
  16. Does KVM2Ethernet work with the older legacy PS/2 keyboard and mouse interface?

1. Does KVM2Ethernet work with the Gigabit Ethernet interface only?

The KVM2Ethernet was designed for Gigabit Ethernet, meaning that a Gigabit Ethernet interface is required on the target computer for optimal performance. KVM2Ethernet will also work with older 100BASE-T Fast Ethernet and 10BASE-T network interface cards, but with a reduction in its performance. If transferring images over the web, the KVM2Ethernet's performance will depend heavily on the available bandwidth.

2. How can I verify whether my system has Gigabit Ethernet?

Nearly every recently made PC or MAC since 2007 comes with a Gigabit Ethernet Network Interface Card (NIC). You may find out your network interface card model by going to the System Settings/Device Manager of your operating system.

3. How many frames per second can KVM2Ethernet transfer?

It depends on the available bandwidth, resolution of your screen, amount of changes on the screen, the screen refresh rate, your operating system and the speed of the computer that is acquiring the images. Uncompressed frame transfer generally yields lower results than compressed frame transfer. Please consult the Specifications for appropriate capture rates.

4. Does KVM2Ethernet reduce the resolution of the images it captures in order to transfer them?

No. KVM2Ethernet captures and transfers every pixel of the original VGA frame in RGB24 format. KVM2Ethernet uses lossless compression to transfer the image over Ethernet. In this respect, KVM2Ethernet provides better quality than a VGA-to-video converter paired with a Composite or S-Video grabber.

5. Can KVM2Ethernet work on Windows NT, Windows 3.x/95/98/SE/ME?

No. Unfortunately, some of those systems have very poor support or no support at all for Gigabit Ethernet.

6. The video mode that I am using is not listed in the list of supported modes for KVM2Ethernet. Can KVM2Ethernet capture it?

Yes. You may add custom modes through the KVM2Ethernet software, available as a free download.

7. What Linux kernel does KVM2Ethernet support? Is the driver's code open source?

Although we provide drivers for the 2.6.x series kernel (i386 and x86_64 platforms), we do not provide the source code for the driver itself. The KVM2Ethernet driver supports Epiphan's proprietary API (described in Linux SDK). Please contact us if you need a driver compiled for a specific kernel version or kernel setting.

8. Does KVM2Ethernet work with the older legacy PS/2 keyboard and mouse interface?

Yes. The KVM2Ethernet works with both USB and PS/2 keyboard and mouse interfaces.

9. What kind of performance will KVM2Ethernet yield when used over the Internet?

When used over the Internet in a remote administration environment, the performance of the KVM2Ethernet is significantly limited by the quality of the Internet connection and the bandwidth available for the KVM2Ethernet to use.

10. Images grabbed from some sources appear to be slightly shifted right or left. How this can be fixed?

KVM2Ethernet has an automatic algorithm that crops visible images from the VGA frame. The algorithm may make a mistake, however, and be off by a few pixels. Please refer to Configuring Image Adjustments in section 18 of the Frame Grabber User Guide.

11. Can I connect two or more KVM2Ethernet devices to one computer and capture signals simultaneously? What is the resulting rate of capture for each KVM2Ethernet?

Yes you can connect two or more KVM2Ethernet devices and capture multiple signals simultaneously. You will need to run the KVM2Ethernet application for each KVM2Ethernet device attached. You will, however, notice a difference in frame rate for each additional active KVM2Ethernet. The higher the performance of your computer, the better the possible frame rate. Please note that you must start the KVM2Ethernet application after connecting each KVM2Ethernet.

12. With what software can I interpret the digital signal coming out of the Ethernet port of the KVM2Ethernet device?

The KVM2Ethernet's output can only be captured using Epiphan Systems' KVM2Ethernet software, available as a free download.

13. Does the frame compression on KVM2Ethernet hamper the quality of the output?

No. KVM2Ethernet devices use a highly efficient and advanced compression algorithm that does not in any way reduce the image quality of the output. Through the use of this algorithm, high transfer rates can be achieved without any losses.

14. Is KVM2Ethernet software compatible with MAC OS?

Yes. KVM2Ethernet is fully compatible with Mac OS X 10.4 and up.

15. Can the KVM2Ethernet be used through a switch? I want to maintain my LAN interface and/or connect another Ethernet devices to my computer, but it has only 1 Ethernet port.

Yes. The KVM2Ethernet can be used through an Ethernet switch. This allows you to connect to your LAN and KVM2Ethernet through a single Ethernet port. By using a switch, you can also extend the length of the Ethernet cable and allow for a larger distance between the KVM2Ethernet and the VGA source, and the target computer.