CAT5 VGA video extender, extend video audio VGA to CAT6 converter, touch screen monitor extension
XTENDEX® ST-C5V-600 (Remote & Local Unit)
XTENDEX® ST-C5V-600 (Remote & Local Unit)

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VGA Video/Audio Extender via CAT5: Extend to 600 feet (183 meters)

NTI Part #: ST-C5V-600-Group
The XTENDEX® VGA Extender transmits VGA video up to 600 feet (183 meters) away from a computer using CAT5/5e/6 cable. The extender supports local and remote monitors, and is available with optional stereo audio or RS232 control. Supports resolutions to 1920x1440.
Also known as: VGA extender, cat5 monitor extender, remote monitor, extend video, VGA balun, VGA range extender
  • Designed and Manufactured in the U.S.A.
  • ROHS Compliant VGA Video/Audio Extender via CAT5: Extend to 600 feet (183 meters)
  • VGA Video/Audio Extender via CAT5: Extend to 600 feet (183 meters)Digital Signage Product
  • CE Compliant VGA Video/Audio Extender via CAT5: Extend to 600 feet (183 meters)
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The XTENDEX ® VGA Extender transmits VGA video up to 600 feet (183 meters) away from a computer using CAT5/5e/6/6a cable. Each video extender consists of a local unit that connects to a computer and also supplies video to a local monitor, and a remote unit that connects to a monitor.

  • Ideal solution for digital signage applications.
  • Supports local and remote VGA monitors.
  • Supports resolutions to 1920x1440.
  • Available with optional stereo audio or RS232 control.
  • Built-in surge protection.
  • Sharpest and clearest VGA quality over CAT5 of any manufacturer.
  • Optional 2-port local unit available – extend two remote units up to 600 feet. (183 meters)
    • Local VGA monitor not available on 2-port local units.
  • Optional 2-port remote unit available – connect two monitors from one remote unit.
  • Use in-house CAT5/5e/6/6a phone wiring to locate a monitor remotely.
  • Optional VESA mounting bracket is available for mounting the remote unit to the back of a flat panel monitor.
Local Unit
  • Host Connection
    • Supports a PC, SUN, MAC or NTI switch with VGA video.
    • Multiplatform support: Windows 2000/XP/Vista/7/8/10, Windows Server 2000/2003/2008/2012, Solaris, Linux, FreeBSD, and MAC OS 9/10.
    • Male 15-pin HD connector for computer connection.
    • Optional RS232 support - female 9-pin D connector.
    • Optional stereo audio support - 3.5 mm stereo plug.
    • ST-2C5V-L-600: female 15-pin HD connector for downloading DDC table for remote monitor.
  • Local Access
    • Crisp and clear 1920x1440 video resolution.
    • Female 15-pin HD connector for local VGA monitor.
    • Video signal to noise ratio: >55dB
    • Distortion: 65dB at 5MHz
    • Optional RS232 support - male 9-pin D connector.
    • Optional stereo audio support - 3.5 mm stereo jack.
    • Local VGA monitor not available on 2-port local units, ST-2C5V-L-600.
Remote Unit
  • Supports resolutions up to 1920x1440; refer to the resolution chart below for resolutions at different lengths.
  • Video signal to noise ratio: >55dB
  • Distortion: 65dB at 5MHz
  • Female 15-pin HD connector.
  • Optional 3.5 mm stereo audio connection.
  • Optional male 9-pin D connector for RS232.
Video Quality Adjustment
  • Video quality adjustment for different lengths of CAT5/5e/6/6a cable is done manually for the video-only extender, and automatically for audio/video or video/RS232 extender.
  • Test Pattern for Cable Length
  • Operating temperature: 32 to 100°F (0 to 38°C).
  • Storage temperature: -20 to 140°F (-30 to 60°C).
  • Operating and Storage Relative Humidity: 17 - 90% non-condensing RH.
  • WxDxH: 3.5x3.1x1.2 in (89x79x30 mm)
  • Weight: 1.2 lbs (0.54 kg)

NTI Part # MTBF (hrs)
ST-C5V-600 (local) 88,708
ST-C5V-600 (remote) 80,625
ST-C5VA-600 (local) 84,744
ST-C5VA-600 (remote) 82,214
ST-C5VRS-600 (local) 82,338
ST-C5VRS-600 (remote) 79,714
  • Use CAT5, CAT5e or CAT6 solid straight through cable for TIA/EIA-568B wiring terminated with standard RJ45 connectors (not included).
Regulatory Approvals
  • CE, RoHS
  • TAA compliant
  • Two years

ST-C5V-600 Distances and Resolutions for CAT5/5e/6/6a Cables
Cable Distance Maximum Resolution
CAT5/5e Solid UTP 600 feet (183 meters) 1024x768 at 60 Hz
400 feet (122 meters) 1280x1024 at 60 Hz
300 feet (91 meters) 1600x1200 at 60 Hz
100 feet (30 meters) 1920x1440 at 60 Hz
CAT5/5e Solid STP, CAT6/6a Solid UTP 300 feet (91 meters) 1024x768 at 60 Hz
200 feet (61 meters) 1280x1024 at 60 Hz
100 feet (30 meters) 1920x1440 at 60 Hz
Note: CAT6 cable has a higher skew than CAT5/5e cable, which causes colors to smear. Since these extenders do not have internal skew compensation, they work at shorter distances with CAT6 cable.

Application Drawings

  • VGA Video/Audio Extender via CAT5: Extend to 600 feet
    VGA Video/Audio Extender via CAT5: Extend to 600 feet
    How to extend VGA video up to 600 ft using the XTENDEX VGA Extender via One CAT5/5e/6/6a

Application Notes

  • Local and Remote Audio/Video Presentation Display
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    Interconnect the VEEMUX Audio/Video Matrix Switch with XTENDEX VGA Extenders via CAT5 to switch audio and video from many computers among multiple monitors and speakers located up to 600 feet away using CAT5 UTP cable.
  • Extend Two Monitors 600 Feet from Computer
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    The XTENDEX® ST-2C5V(A/RS)-L-600 2-port local unit allows two remote monitors to be located 600 feet away from a computer via CAT5/5e/6 cable.

CAD Drawings

  • ST-C5V-600
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  • ST-C5VA-600
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  • ST-C5VRS-600
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Stereo Audio
  • Stereo audio can be heard both locally and remotely.
  • Frequency response: 20 Hz to 20 kHz, +/-1 dB.
  • Signal-to-Noise Ratio (SNR): 76 dBA.
  • Total Harmonic Distortion and Noise (THD+N): 0.017%.
  • Stereo crosstalk: -70 dB.
  • Input impedance: 10k Ohms.
  • Line level output; supports multimedia speakers.
  • Maximum I/O levels: 3.1Vp-p (line level).
  • CD quality audio output.
RS232 Control
  • Supports TXD, RXD, DTR, DSR, CTS and RTS.
  • Baud rate up to 56000.
  • Support for a touch screen monitor.
Local Unit Supporting Two Remote Monitors
  • Two RJ45 connectors for connecting two remote units.
    • The monitors connected to each remote unit simultaneously display the same image.
  • Features push button for downloading DDC data from monitor connected to VGA connector.
Remote Unit Supporting Two Monitors
  • Two female 15-pin HD connectors for connecting two monitors.
  • Both remote monitors simultaneously display the same image.
  • Optional audio allows connection of two sets of speakers.
  • Two 3.5 mm stereo jacks.
VESA Mounting Bracket
  • Use to mount the remote unit to the back of a flat panel monitor.
  • Compliant to VESA 75 and 100 mm (3 and 3.9 in) mounting hole patterns.
  • Dimensions WxH (in): 9.7x4.8
  • Compatible with the remote unit only.
  • "The ST-C5V-600 was just what we needed. We had a project at my church where we needed to access a projector on the ceiling – the ST-C5V-600 VGA extender was perfect for this."

    Drew Grafton
    First Baptist Church
    Woodstock GA
  • "I am using the ST-C5V-600. What makes it work well in our application is that it's an industrial product, not a home/office type of device. High MTBF at around 10-11 years for us as well! They perform as per spec, but I've got one run out 800 feet with no problems at all, excellent quality!"

    Javier Moreno
    Rio Grande Regional Hospital
    Brownsville, TX
  • "I have used about 250 pairs of the ST-C5VRS-600 and ST-C5VA-600 extender to do my former whole new campus classrooms about 3 years ago with great success and better cost than many. The extenders are made in Ohio and have a long guarantee. NTI has many different models - we used the VGA, audio and RS232 on one Cat5, and it did just what we needed.

    Good luck – I think you will be happy with NTIs products. Where I am now, we have bought the ST-C6HD-300 HDMI extenders over 1 Cat5 and are still happy."

    Shelly Allen
    University of Wisconsin-Whitewater
    Whitewater, WI
  • "I recently did a Multi-Floor Media Display Network installation of remote high-resolution video displays with accompanying audio feed in lobby areas on two separate floors of a Government Agency’s district office. The Commander wanted the ability to screen live satellite feeds, CCTV, local network information as well as a variety of in house presentations.

    To accomplish this, I needed to create a PC head end with software and other equipment capable of managing the various inputs. Select an output device that could be wall mounted in the space available and be able to reproduce VGA signals at a resolution of 1280x1024 as well as video and CCTV images. The monitor would need extremely wide viewing angles to allow for public viewing. Audio would need to be accomplished by a network of speakers balanced to compensate for the losses due to distance.

    The head end equipment selected allowed inputs for DVD, VHS, satellite, CATV, Internet and LAN feeds. The signals were fed through a video processor which added additional features like picture-in-picture, freeze frame and zoom, as well as the ability to remotely control which one of the inputs would play the primary role on each screen. Since the monitors were to be located on different floors and in areas remote to the head end, Cat5 VGA extenders were used to insure distance, 600 feet, and resolution, 1280x1024. The ST-C5VA-600 and ST-C5V-600 products manufactured by Network Technologies Incorporated (NTI™) were used to accomplish this."

    Duane Pittman
    Vector Electric
    Ann Arbor, MI, USA
  • "I am using the XTENDEX™ VGA Extender to broadcast VGA video locally and remotely on high-resolution monitors from Dell at 1024x768 video resolution. These extenders are an ideal solution, because they are very well built, compact and easy to install. The images are absolutely excellent; there is no difference between the image on the local monitor and the image on the remote monitor.

    After testing many other solutions on the market, I found that the quality delivered by NTI's VGA video extenders could not be beat.

    "The sales and service from NTI has always been excellent, and the people you talk to when you call up actually know what they're talking about and the product they are selling."

    Mike Golzmane
    Intelicoat Technologies
    South Hadley, MA, USA
  • "After extensive research and testing of various products, our team was delighted to discover NTI’s XTENDEX™ VGA Extenders with RS232 Control. We have standardized on NTI extension products as the recommended solution for our National dealer channel for use with our touchscreen based digital music management system. The NTI ST-C5VRS-600 are truly plug-n-play and performance has been excellent. Our dealers have been quite happy with the product quality, ease of use and support from NTI."

    Mike Weaver
    Qsonix, Inc
    Agoura Hills, CA, USA
  • "When we began our project, we quickly realized that NTI was the only provider that offered the necessary high end video resolution at the distances we needed to carry our applications over. Their technology, sales and technical support has offered everything we had hoped for in a company!"

    Dan Winchester
    Illinois General Assembly
    Springfield, IL, USA
  • "I would like to congratulate Network Technologies Inc on the quality of design on their XTENDEX VGA extenders. I asked our Flight Information Display System (FIDS) vendor to consider using the XTENDEX extender to resolve an issue. Since they replaced another vendor's product with the XTENDEX, we have all been very pleased with the result.

    We had switched monitors only to find out that the input voltage of the new monitor was 0.5 volts lower. The Ethernet to VGA converters that the FIDS contractor had supplied were not capable to match the input voltage for the new monitors and thus, did not work. I checked on the Internet and after looking at the possible options decided that the NTI XTENDEX VGA extender would be the best choice. The FIDS contractor tried the extender and it matched the input voltage and synced with the monitor flawlessly."

    Jonathan Curtiss
    Kent County Department of Aeronautics
    Grand Rapids, MI, USA

(0)VGA Extenders

NTI Part # Supported Features Local or Remote Rackmount or Desktop Number of Ports Qty
ST-C5V-600 VGA Video Both Desktop Unit 1
ST-C5VA-600 VGA Video, Audio Both Desktop Unit 1
ST-C5VRS-600 VGA Video, RS232 Both Desktop Unit 1
ST-2C5V-L-600 VGA Video Local Desktop Unit 2

(0)Receivers to 600 Feet

NTI Part # Supported Features Local or Remote Rackmount or Desktop Number of Ports Dimensions WxDxH (in.) Qty
ST-C5V-R-600 VGA Video Remote Desktop Unit 1 3.5x3.1x1.2
ST-C5VA-R-600 VGA Video, Audio Remote Desktop Unit 1 3.5x3.1x1.2
ST-C5VRS-R-600 VGA Video, RS232 Remote Desktop Unit 1 3.5x3.1x1.2
ST-C5VX2-R-600 VGA Video Remote Desktop Unit 2 3.5x3.1x1.2
ST-C5VAX2-R-600 VGA Video, Audio Remote Desktop Unit 2 3.5x3.1x1.2

(0)VESA Mounting Kit

NTI Part # Name Qty
ST-C5MK-VESA VESA mounting kit, mount extender to back of monitor, 75 & 100 mm (3 & 3.9 in) mounting patterns
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