The DmxMerger offers three different merging strategies.
The Latest Takes Precedence strategy selects one of the LTP inputs based on which port had the most recent change. This can be a change in channel levels or a DMX signal becoming active.
The Highest Takes Precedence strategy is used for combining the HTP inputs and the result of the LTP merging. In this strategy each DMX channel is compared across the inputs and the highest value is forwarded to the output.
If a DMX signal is present on the Priority input then this input is forwarded directly to the output. In this case all other inputs are ignored.