Kramer Electronics Ltd.
DIP-31
– Principles of Operation
10
Principles of Operation
The
DIP-31
selects video and audio inputs based on the rules described below.
Input Selection
The video mode selection is set by the DIP-switches (see
Setting Configuration DIP-switch
) to either of the following modes:
•
Manual
•
Auto-Last connected or priority mode
In manual mode switching occurs whether or not there is a live signal present on the input.
You select manually select an input using any of the following methods:
•
Front panel buttons
•
Remote input selection switches
•
RS-232 control
•
Web pages
In auto mode, the switching selection is performed based on either last connected or priority
input.
In last connected mode, if the signal on the current input is lost, the
DIP-31
automatically
selects the last connected input, (the delay depending on the configurable signal-lost timeout).
In priority mode, when the input sync signal is lost for any reason, the input with a live signal
and next in priority is selected automatically, (the delay depending on the configurable signal-
lost timeout). This priority is configurable; the default setting is HDMI 1
HDMI 2
PC.
In both last connected and priority modes, manually selecting an input (using the remote input
selection switches or any of the above methods) overrides automatic selection.
Signal Loss and Unplugged Cable Timeouts
In both last connected and priority modes, when the input signal sync is lost (but the cable is
not removed) there is a default delay (ten seconds for video, not applicable to the PC input,
and five seconds for analog audio) before another input is automatically selected. When an
input cable is removed, there is a delay before automatic switching takes place.
Both timeouts are configurable, (see
Setting Configuration DIP-switch
When “Audio Only” mode is enabled, analog audio is not output when there is no display
connected. If a display is connected analog audio is output even in the absence of a video
signal.
