DVI Extender Over Cat5 Systems


Installing a DVI Extender into an existing Cat5 network is a relatively simple process. Extension kits that work on Category 5 networks will also be compatible with Cat5e and Cat6 setups, although it should be noted that most extenders are engineered to run optimally on TIA/EIA-568-B industry standard wiring model, more commonly referred to as simply 568-B.

DVI Extender Over Cat5 Systems

An extender kit is composed of DVI transmitters (sometimes referred to as Senders), as well as DVI receivers. DVD-I and DVD-D formats are both supported in some models, whereas other types of extenders require using a specific type of DVI connection. Follow the easy steps below to connect your extension kit to a Cat5 network.

  1. Connect your extender transmitter’s source input to your computer by using a DVI cable.
    2. Plug in your USB cable to the transmitter, or otherwise use an included DC power adapter. Note that some switches also utilize PoE (power over ethernet) if you have an ethernet switch that will support it. You will be able to verify a suitable power connection when the LED power lamp on the receiver lights up green.
    3. Connect a standard Cat5, Cat5e, or Cat6 cable to the DVI transmitter source input.
    4. If your extender supports audio, connect the audio output to the speaker jack on your source computer to the audio input port on the extender.
    5. Now connect the extender’s receiver near the display unit that you will be using via DVI cable.
    6. Connect the other end of the ethernet cable to your DVI receiver box’s input source port remotely, near the display that you will be using.
    7. Connect the power adapter to your extender’s receiver. Again, verify that you have a sufficient power source by checking the LED power indicator, if you have a green light your receiver is connected properly.
    8. If you connected an audio source on the DVI extender transmitter, you may now connect the audio output from your extender’s receiver to the audio input on your remote device.
    9. Install the included software for your extender onto the source computer that will be hosting your displays.

There are a few important things to keep in mind when you’re connecting a DVI Extender to your current ethernet network. When using Cat5e or Cat6 networks your range will typically be around 150 feet for 1080i video, and around 75 feet for 1080p quality video. Some extender kits can support multiple displays, however, each of those displays will require a separate connection.

You can increase the distance of your video extension by utilizing more potent network connections, such as fiber optics. Fiber optic connections can extend signals up to 18.75 miles (30 kilometers). If you require coaxial RG6 or BNC connections to your devices, you can also purchase extenders that support SDI (serial digital interface) or HD-SDI (high definition serial digital interface); these connections work especially well with television facilities.  Hopefully now you will know the main differences between dvi and cat5 ethernet cables, which can be quite significant.


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