Using the System Utilities Additional Information
Agilent 8163A/B, 8164A/B, and 8166A/B User’s Guide, Fourth Edition 65
3 Enter the password, using the softkeys or the numerical keypad.
Press Enter and the instrument unlocks.
NOTE The default password is 1234.
To lock the instrument, perform the steps above, but in step 2 move to
the <Lock> menu option in place of the <Unlock> menu option.
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:
1 Press the Config hardkey.
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