Model vs2 – Hall Research VS-2 User Manual

Page 8

MODEL VS2

When you turn the unit on a menu similar to below appears:

Version 1.2

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M E N U

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1 = #1 Input

2 = #2 Input

a = Auto mode

b = Blank

u = Un-blank

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Control Codes (1 byte commands from external control device)

ASCII 1 (or Hex31)

Selects input #1 (immediately and unconditionally). The device

will respond with:

In #1 Selected

If the previously displayed output was input #2, then prior to

switching the unit will blank the output for a period of

approximately 25 milliseconds, switch to input #1 and un-blank
the output. This is done in order to reduce or eliminate the

undesired “flash of junk” on screen when the monitor is re-

synchronizing from one input to the other. Most monitors and

LCD’s do take some additional time to re-sync to the new input

and so the blanking may appear to be longer than 25 Ms. The

reason for the initial blanking during the switching is to prevent
a jittery screen that may appear for a fraction of a second due to

initial switching.