Hall Research VS-20 User Manual
Hall Research Routers
Hall Research Technologies, Inc
1163 Warner Ave.
Tustin, CA 92780
Phone:
(714) 641-6607
Fax:
(714) 641-6698
Page 1 of 4
12/01/05
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Front View
with
Serial
Keypad
The Model VS-20 is a 20 in x 1 out VGA video switch that allows a monitor to display any one of 20 inputs. The output may
also be blanked out.
The inputs can be RGBHV (e.g. VGA from a PC), RGBS, or RGsB with resolutions to 1600x1200 pixels, all inputs are
terminated and buffered using wide bandwidth DC-coupled video amplifiers for a sharp and perfect reproduction at the
output.
The VS-20’s output can drive cables in excess of 300 feet by means of a proprietary compensation network. Each channel
features a user selectable compensation for long cable runs. The compensation should be applied to those inputs where
the total length of the cable from that particular input to the monitor exceeds 150 feet.
NOTE:
The brightness of the Channel LED’s on the front panel is an indication of the “compensation” setting for
that channel.
Rear View
An RS232 “Serial Port” is provided on the unit to control the selection for the output. A Serial Keypad is supplied with each
unit. The VS-20 has a built-in power supply and requires standard 110 VAC for operation. A power cord is furnished with
the unit.
The VS-20 employs HDD15 female connectors for all video inputs and outputs (with standard VGA pin-out). All cable
connections are located on the rear of the unit. The front panel provides the on/off power switch and individual indication
of the channel selected for the output.
UMA1079 Rev. n/c