Rigol 2000 Series User Manual page 136

RIGOL
Chapter 5 To Trigger the Oscilloscope
ExitSuspend: trigger when the bus exits from idle state for more than 10 ms.

Trigger Mode:
Press Sweep to open the trigger mode list and select "Auto", "Normal" or "Single".
For the details, please refer to "Trigger Mode". The corresponding status light of
the current trigger mode turns on.
Trigger Setting:
Press Setting to set the trigger parameters (noise rejection) under this trigger type.
Note:
Noise rejection is grayed out and disabled automatically when the signal
source is set to any channel of D0-D15.
Trigger Level:
Press D+ and use TRIGGER LEVEL to modify the trigger level of the D+
channel. Press D- and use TRIGGER LEVEL to modify the trigger level of the D-
channel. For the details, please refer to the introduction of "Trigger Level".
5-48 MSO2000A/DS2000A User Guide