Hall Research DVS-4A - Manual (Page 12)

4-Port DVI Switch with Audio & Serial Control
10
After power-up the unit will output the following menu in ASCII through
its serial port:
MENU - Version 1.0
-----------------------------------------
1 = Video 1 Input | B = Blank
2 = Video 2 Input | U = Un-blank
3 = Video 3 Input | E = Enable boost
4 = Video 4 Input | D = Disable boost
A = Auto mode | R = Report
S = Scan mode | F = Factory defaults
P = Priority | M = Menu
-----------------------------------------
. Serial Port Control Codes
Control codes are 1 byte commands from an external device to the Serial
Port on the DVS-4A.
ASCII ‘1’ (Hex 31 or Decimal 49)
Selects Video input #1 (immediately and unconditionally).
If the unit was in AUTO mode, then MANUAL mode is
selected.
The device will respond with: Video 1 selected
ASCII ‘2’ (Hex 32 or Decimal 50)
Selects Video input #2 (immediately and unconditionally).
If the unit was in AUTO mode, then MANUAL mode is
selected.
The device will respond with: Video 2 selected
ASCII ‘3’ (Hex 33 or Decimal 51)
Selects Video input #3 (immediately and unconditionally).
If the unit was in AUTO mode, then MANUAL mode is
selected.
The device will respond with: Video 3 selected