VGA Switch - Low Cost, Low Power, Compact and Reliable Monitoring Device

Whenever video from multiple sources needs to be viewed on one display device, a vga switch can be used. Multiple computers can share one projector, monitor or other video display with a wireless VGA port using this device. PCs, MACs and SUNs with VGA video as well as various other VGA video sources such as VHS or DVD players can be operated with these devices. Available in multiple sizes including 2, 4 and 8 ports, these switches can be cascaded to achieve a larger distribution. Operating on plug and play functionality, setup is achieved by securing the connections between the video source and the display through standard VGA Cables. These devices maintain video integrity without ghosting and data loss.

The vga switcher units support high resolution video up to 1920x1440 @ 60Hz and have a bandwidth of 250 MHz or higher. Available in 2x2, 2x4, 2x8, 2x16, 4x4, 8x8, 16x16 & larger matrix switch versions which combine a video switcher and a video splitter, these devices also have rack mount options. Control of the switcher can be done via push buttons on the front of the unit but additional control methods of the matrix include RS232, TCP/IP or Infra Red Remote. These devices eliminate the need for unplugging and re-plugging the VGA cables between video sources.

Supporting the DDC1, DDC2, DDC2B, DDC2B+, DDC2AB protocols this category of video switcher is CE, FCC and RoHS compliant. Hot pluggable, these switches need not be powered down while adding or removing sources. They do not require any additional software for operation and have the ability to auto skip over power off / suspended PC, and unplugged VGA cable. High end models of these switchers come with a wireless remote for port selection, on screen display and auto scan mode. Some models of these devices are available with audio and have the ability to switch balanced and unbalanced stereo audio.

An essential part of conference rooms, presentations, classrooms, remote monitoring and training facilities where switching between multiple video sources is needed, the VGA Switch is a popular device since it maintains quality of video due to the built in video signal enhancement.

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What is VGA Extender?

A VGA Extender is an electronic device that increases the signal strength from a VGA port, most often from a computer. They are often used in schools, businesses, and homes when multiple monitors are being run off one VGA port, or if the cable between the monitor and the computer will be excessively long. wireless VGA extenders are sometimes called VGA boosters. A manifestation of a video extender, this device transmits video signals between the host and the end target destination devices. They are connected through a standard category cable, thus eradicating the need for the huge VGA cables traditionally. This new and pioneering technology used by these extenders also overcomes the distance barriers and restrictions that come with other cables.

It comprises of a sender and receiver unit whereby the sender unit is connected to the computer and the receiver unit are connected to the distant devices. This extension device functions on a simple plug and play mechanism. The setting up process is hassle free with not requirements of any added software or device drivers. Due to the fact that this it sometimes used for connection purposes, it is also referred to as a CAT5 VGA Video Extender.

These devices facilitate an impressive resolution of 1900 x 1200, giving out a crystal clear image. They are attuned and well matched with numerous other operating systems and offer equalization and video signal gain adjustment. The prime features are that it has the propensity to increase the signal strength and provide output without any signal breakage. It is power driven by the 12 V power supplies, some models of these extenders include the 2, 4, 8 or 16 ports and they can have the optional RS232 control.

This extender is the most sought after and popular amongst all categories of the video extension units. Furthermore this extender is also available in a wireless format that allows a VGA Display device which can be put up at a distance of 200 feet away from the source. This wireless VGA Video Extender can diffuse signal over Wi-Fi channels and it has the propensity to provide protected and safe access and management of the infrastructure of any organizations. To maintain security, precautionary measures are taken by and this product has a session log in and is Wi-Fi protected. It has a DHCOP server which acts as an access point, if it is put up as a stand alone device rather than being connected to a network; it defaults to the current DHCP server. This enables it to provide better installation flexibility.

In spheres where the video inputs need to be sent out to various remote output devices, such as in digital signage applications, e.g. airports, conference and training facilities, the VGA Extender devices are the perfect piece of hardware.

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Wireless VGA Extender - Enables Flawless Operation of Mobile Workstations

The Wireless VGA Extender allows a VGA Display device to be located up to 200 feet away from the source. Consisting of a transmitter which connects to a VGA source, this unit wirelessly transmits video signals to the various computers or laptops via wireless network connection.

With the help of this device and by making use of a computer's wireless 802.11b or 802.11g network card, VGA, XGA or WXGA resolution video (up to 1024 x 768), including MPEG1, 2 & 4, can be streamed along with 3.5mm stereo audio. This transmits the video signals over Wi-Fi channels, allowing them to go through walls and obstructions.

There is no need for any additional software or hardware for configuring this VGA Extender as it has a web based user interface. The installation and control program, which is in built into the transmitter module, is accessed from any internet browser. For security, this product has a session log in and is Wi-Fi WEP protected. If set up as a stand alone device, the built in DHCP server acts as an access point and when connected to a network, it defaults to the existing DHCP server, thus providing greater installation flexibility. Windows Vista, XP, 2000 systems can all work with this device which is RoHS compliant.

Perfect for situations where it is not possible to install cables, or in situations where the workstation would be moving frequently, this device plays a crucial role. The conference control function makes it ideal for presentations, digital signage, residential applications, classrooms, and conference areas and perfect for PowerPoint & real-time video presentations. The Wireless VGA Extender is often found to be utilized in these types of applications.

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Wireless VGA - What it is...?

The recent trend in consumer technology over the past couple years has been towards wireless technology. A good wireless mouse can be purchased for under $20, wireless keyboards for under 30$ most of the newly released stand alone printers and Multi Function Devices have built in wireless capability. When buying new peripheral equipment for your computer it is almost expected for the device to have wireless capability built in. If you also consider the recent surge of bluetooth devices such as wireless headsets and the fact that many home internet users have a wireless network of their own the trend towards wireless becomes fairly clear.

The Benefits of wireless technology are fairly obvious, some examples are:

- Avoid cluttering up your desk with cables for your growing number of electronic devices
- No need to spend the effort running wiring through walls, floors and around obstacles
- Freedom to move around with your device as you please
- Rechargable batteries mean that you don't need to keep purchasing new ones
- Devices are competitively priced compared to wired counterparts

So with the growing popularity of wireless mice, keyboards, printers, phones, scanners, etc have you ever wondered why we dont yet have a wireless monitor on the market? There would almost certainly be a large consumer demand for such a product if it were to be released.

The answer is the sheer amount of information that needs to be transferred from computer to monitor in order to display properly, especially if that monitor is in high definition. The bandwidth required is much more than that of what a wireless keyboard requires or even a bluetooth headset. Right now the major manufactorers yet to create a computer monitor with built in wireless capability although transmission rates have started to approach the speed required for a wireless monitor.

In the meantime, if you are dead set on getting a wireless monitor there are a few adaptors on the market that might do the job. There are several wireless VGA to usb wireless adaptors that you can simple plug in to your devices in order to support wireless connectivity. They generally work fairly well but if viewing full screen video on the monitor sometimes the quality can deteriorate due to bandwidth issues. A wireless VGA to USB adaptor can be purchased through amazon or many other electronics stores.

Dave Gram - Technology Enthusiast
For more information on the wireless monitor check out Wireless Monitors

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