68 8163A/B, 8164A/B, 8166A/B User’s Guide
2 Additional Information
How to Set the Trigger Configuration
The trigger level at the external trigger connectors is by default active
high, this means when a trigger rises above the high TTL level (rising
edge), a trigger is accepted.
You can select three modes of triggering from the trigger configuration
menu:
•
<None>, which you should choose if you do not want to use triggering.
•
<Default>, which you should choose if you want to enable the trigger
connectors.
•
<Pass Through>, which you should choose if you want an input trigger
to automatically generate an output trigger. This allows you to trigger
another instrument almost simultaneously.
•
<Feedback>, which you should choose if you want an output trigger to
automatically generate an input trigger. For example, using this mode,
you could trigger each step of a wavelength sweep with just one
externally generated input trigger.
To change the triggering mode:
1Press the Config hardkey.
2 Move to the <Trigger> menu option and press Enter. You see a box
displaying the available triggering modes.
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