Hall Research VSM-404 User Manual
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4x4 Video Matrix Switch
3.7.1 Status and Special Commands
There is a special set of codes that can be sent by (or through) the serial
device that will cause the Switch to respond with status values; these can be
very useful in automated systems:
• Send the Switch an ASCII “0” (zero, 30 hex) to have it return the revision
level of its firmware: an ASCII “1” (31 hex), for instance, for firmware
version 1.
• Send the Switch an ASCII “1”, “2”, “3”, or “4” (31 hex through 34 hex
respectively) to have it return the status of the corresponding output
channel: It will reply with ASCII “1”, “2”, “3”, or “4” (31 hex through 34
hex) to indicate that that output is switched to input #1, 2, 3, or 4
respectively, or it will reply with ASCII “0” (zero, 30 hex) to indicate that
that output is blanked.
3.8 Free Control Software for Windows® PC
The "Matrix Monitor" software available from
www.hallresearch.com
allows point-and-click control and monitoring of the VSM-404 from a PC
with Windows OS.