2x1 Compact VGA Switch w/ Audio
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3.2 Modes of Operation
The unit can operate in either Auto or Manual mode by pressing the
mode button to select it.
In Auto mode, the AC505A-2A will automatically select the input with
active video and audio. The presence of video is determined by
examining the V. Sync signal of the input connectors. The front panel
SELECT button cannot be used to switch between PC 1 and PC 2 input
sources in this mode. However, it can be used to blank the output by
holding it down for 3 seconds or to un-blank the output by pressing it
once.
In Manual mode, the output of the AC505A-2A will depend on the
selection of the switched output SELECT button.
3.3 Priority Selection in Auto Mode
The priority button is used to select the priority as none, input #1, or
input #2. This priority selection only applies to the Auto mode. If INP
1 priority is selected, the AC505A-2A will automatically select input
#1 whenever it detects the presence of video at PC 1 input, regardless
of what is happening at input #2. If INP 2 priority is selected, the VS-
2A will automatically select input #2 whenever it detects the presence
of video at the PC 2 input, regardless of what is happening at input #1.
For example, if the output is playing the video & audio from PC 2
input and the video from PC 1 input is detected, the output of the
AC505A-2A will select PC 1 (input #1) immediately. With priority set
to none, the unit stays selected to the current input as long as it is
detecting video there.
