Quantum Data Systems (H.K.) Ltd.

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Audio/Video Matrix Switch

Price per Unit (piece):
Contact us for availability

Features & Applications

The VEEMUX® SM-nXm-AV-LCD audio/video matrix switch routes audio and video input from many computers to multiple displays (projectors, monitors, etc.) and speakers. This switch can drive standard VGA cables, thus eliminating the need for external interfaces and coax cable connections via BNC connectors.

Signals from a range of input sources can be distributed to various output devices. A single computer video output can be routed to one or more monitors. Each video output is buffered from each input, ensuring signal integrity throughout the system. When switching ports, the audio automatically mutes until the video has been synchronized. The audio can also be muted on command.

  • Configure and control the switch through Ethernet, serial port or front panel buttons.
  • Equipped with Liquid Crystal Display (LCD) and RS232 Control.
  • Switch VGA video directly.
  • Each output provides one video signal and one stereo audio signal.
  • Each input can be independently connected to any or all outputs.
  • Video bandwidth is 200 MHz or greater.
  • Supports 1920x1200 video resolution at a refresh rate of 85 Hz.
  • Crestron® compatible.

The VEEMUX switch is the ideal solution for any application where information from many computers is being presented, such as:

  • Classrooms.
  • Boardrooms.
  • Trade shows.
  • Conference and entertainment facilities.
  • Courtrooms.
  • Command centers.
  • Control rooms.


Video Input

  • Eight Female 15-pin HD connectors.
  • Impedance: 75 Ohms.

Video Output

  • Two Female 15-pin HD connectors.
  • 1920x1200 video resolution with no degradation.
  • Impedance: 75 Ohms.
  • Bandwidth: 200 Mhz, fully loaded.

Audio Input

  • Eight 3.5mm stereo audio jacks.
  • Impedance: 10k Ohm.
  • Maximum Input Level: 1 Vrms or 2.5Vp-p.

Audio Output

  • Two 3.5mm stereo audio jacks.
  • Drives 8-Ohm speakers.
  • Unbalanced Gain: user defined.
  • Frequency Response: 20 Hz to 20 kHz, +/-0.5 dB.
  • Total Harmonic Distortion + Noise: 0.01% at 1kHz.
  • Gain Adjustment: -20 dB to +10 dB in 2 dB steps.
  • 200 mW RMS of continuous power per output.
  • When switching ports, audio mutes until video has been synchronized.

Regulatory Approvals

  • CE, FCC, RoHS


  • Interface cables between the computers and the switch are required for proper operation.
  • Recommended NTI video cables:
    • VGA interface cable (VEXT-xx-MM).
    • VGA to BNC cable (VINT-5B-6).
  • Recommended NTI audio cables:
    • SA-xx-MM.
  • Cables not included.



  • 62,260 hrs


  • Operating temperature: 32°F to 100°F (0°C to 38°C)
  • Storage temperature: -20°F to 140°F (-30°C to 60°C)
  • Operating and Storage Relative Humidity: 17 to 90% non-condensing RH.

CAD Drawing


  • Two years

Control Methods


Download RS232 Matrix Switcher Control Program

Download Ethernet Control Firmware

The SM-nXm-15V-LCD Video Matrix Switch allows you to connect multiple= 

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