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12 WP-577VH - Principles of Operation
6 Principles of Operation
This chapter describes the principles of operation of the WP-577VH and
comprises:

Input selection (see Section
6.1
)

Input connection timeout (see Section
6.2
)

Audio signal priority (see Section
6.3
)

Active and passive local RS-232 data modes (see Section
6.4
)

Active and passive DGKat RS-232 data modes (see Section
6.5
)
The WP-577VH selects video and audio inputs based on the following rules.
6.1 Input Selection
The video selection mode is set by the DIP-switches (see Section
8.1
) to:

Manual (external control)

Last connected

Priority
In last connected mode the WP-577VH selects the input that was the last to be
connected. In manual mode the input is selected by sending Protocol 3000
commands. An input selection made by sending a serial command overrides any
other current selection.
In Priority mode the input is selected based on the order of priority which is set
using the control application. The default order of priority is:
1. HDMI
2. VGA