Rigol 2000 Series - Page 134

RIGOL Chapter 5 To Trigger the Oscilloscope
5-46 MSO2000A/DS2000A User Guide
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 SCL and use TRIGGER LEVEL to modify the trigger level of the SCL
channel. Press SDA and use TRIGGER LEVEL to modify the trigger level of the
SDA channel. For the details, please refer to the introduction of "
Trigger Level".