Trigger Set up values NAD

Looking for Trigger set up values to power my NAD M-25 Masters amp from my NAD M-15 Pre/Processor

Here are the values:
1) Assigned to: Power on-I assume
2) Polarity:High or Low?
3) Delay: 1,2 or 5 seconds ?
4) Duration:Infinite,1,5,10 or 30 seconds?