3 Features and Functions
110 Keysight 34420A User’s Guide
External Trigger Terminal
You can trigger the meter by applying a low-true pulse to the rear-panel Ext Trig
(external trigger) terminal. To use this terminal from the remote interface, you
must select the external trigger source (TRIGger:SOURce EXTernal).
You can use a simple switch to generate an external trigger using the Ext Trig
input as shown below.