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HRT VS-4A User Manual

4 channel vga switch with audio & serial control
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4 Channel VGA Switch with Audio & Serial
•
Switches Between 4 PC Video and Audio Signals
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Manual or Auto Switching Based on Active Video
•
RS-232 Serial Control
© Copyright 2007. Hall Research Technologies, Inc.. All rights reserved.
1163 Warner Ave Tustin, CA 92780, Ph: (714)641-6607 , Fax -6698
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Model VS-4A
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UMA1120
Rev 1.1

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Summary of Contents for HRT VS-4A

  • Page 1 Model VS-4A 4 Channel VGA Switch with Audio & Serial Control • Switches Between 4 PC Video and Audio Signals • Manual or Auto Switching Based on Active Video • RS-232 Serial Control UMA1120 Rev 1.1 © Copyright 2007. Hall Research Technologies, Inc.. All rights reserved.

  • Page 3: Table Of Contents

    2. INSTALLATION ................3 2.1 R ................3 EQUIRED ABLES 2.2 I & O ................. 3 NPUTS UTPUTS 2.3 C VS-4A..............3 ONNECTING THE 2.4 C ..............4 ONNECTION IAGRAM 3. CONFIGURATION & OPERATION ..........5 3.1 M ..............5 ODES OF PERATION 3.2 F...

  • Page 4: Introduction

    RFI shielded enclosure and is supplied with a universal AC power adapter. The VS-4A unit provides all the A/V and control connections on the rear panel; the front panel has push-button switches with corresponding LED indicators for the selection of the video source.

  • Page 5: Installation

    Male/Female DB9 Serial Cable (customer furnished). 2.2 Inputs & Outputs The VS-4A has 4 video and audio inputs marked Video 1 through 4 and Audio 1 through 4. The unit has 1 video and audio output marked Video and Audio Output. The unit has 1 serial port connector labeled RS232.

  • Page 6: Connection Diagram

    ontrol 4 Channel VGA Switch w/Audio & Serial C 2.4 Connection Diagram...

  • Page 7: Configuration & Operation

    - VGA inputs are selected based on front panel push-button selections. The VS-4A can only be in one of these modes at a time. You can specify mode of operation either from the Serial port or from the front panel (by pressing switch combinations simultaneously).

  • Page 8: Front-Panel Switches

    The second use of the front panel buttons is to put the VS-4A into Auto Mode. Press buttons 1 and 2 simultaneously and the VS-4A will enter the Auto Mode when the front panel is not locked.

  • Page 9: Rs-232 Control

    Hall Research Technologies sales representative if you need to buy one. The VS-4A will output a menu to a serial port on power-up. This menu will also be displayed when a “List” command is sent to it via a serial port.

  • Page 10: Serial Port Control Codes

    ontrol 4 Channel VGA Switch w/Audio & Serial C After power-up the unit will output the following menu in ASCII through its serial port: Ver1.0 ------ 1 = #1 In 2 = #2 In 3 = #3 In 4 = #4 In a = Auto mode s = Scan b = Blank...
  • Page 11 ontrol 4 Channel VGA Switch w/Audio & Serial C ASCII a (or Hex 61) Enters ‘Auto’ mode. In Auto mode, the device automatically switches to the video & audio input source that is active. “Active” means that video signal has sync signal, it does not mean there is a non-static screen! ASCII s (or Hex 73) Enters ‘Scan’...
  • Page 12 ontrol 4 Channel VGA Switch w/Audio & Serial C ASCII p (or Hex 70) Selects video input priorities. The device will ask for the priorities for each of the four inputs via a prompt the user must respond to. “In X is [Y] (1-4)?” Where ‘X’ is the Video input and ‘Y’ is its current priority.

  • Page 13: Troubleshooting

    4.2 Calling Hall Research Technologies If you determine that your unit is malfunctioning, do not attempt to repair the unit. Contact HRT Tech. Support at 714-641-6607 or via email or web Before you do, make a record of the history of the problem. We...

  • Page 14: Specifications

    ontrol 4 Channel VGA Switch w/Audio & Serial C 5. Specifications Video Inputs VGA, RGBHV, RGBS, RGsB, or Component Video (YPbPr – would require HD15 to 3 RCA adapter) Resolutions Supported PC from VGA to UXGA (640x480 to 1600x1200) HD from 480p to 1080p Audio Inputs PC or Consumer audio (standard line-level) Video Level 0 to 0.7V p-p on RGB, 0 to 5 V for H and V Sync Bandwidth...
  • Page 16 Product Designed and Made in the USA...

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