RIGOL DG4000 Series - Manual (Page 155)

Chapter 7 Burst RIGOL
DG4000 Series User’s Guide 7-9
When “Int” or “Manual” trigger is selected, press TrigOut to specify the edge of
the trigger output signal and the default is “Off”.
 Off: disable the trigger output signal.
 Leading: output the trigger signal at the rising edge.
 Trailing: output the trigger signal at the falling edge.