:MEASure:TDEQ:PRESets

Meas. mode:
Eye
Waveform type:
PAM4
Flex Apps:
FlexDCA
FlexRT
PAM4 Definition Commands

Command Syntax

:MEASure:TDEQ:PRESets <preset name>

<preset name> is a string.

Query Syntax

:MEASure:TDEQ:PRESets?

Description

Loads a previously saved settings, known as a preset, for a :MEASure:EYE:TDECQ measurement. The preset configures the measurement to your saved settings. To query which presets are available for loading, use the :PRESet:SELections? query.

Keysight Supplied TDECQ Measurement Presets

  • IEEE 802.3db
  • IEEE 802.3dj Draft 1.3 DR (500m)
  • IEEE 802.3dj Draft 1.3 FR4 (500m)
  • IEEE 802.3dj Draft 1.3 DR (2km)
  • IEEE 802.3dj Draft 1.3 FR4 (2km)
  • IEEE 802.3dj Draft 1.3 LR4 (10km)
  • CEI-112G-Linear
  • IEEE 802.3bs Amended
  • IEEE 802.3bs
  • IEEE 802.3cd
  • Fiber Channel PI - 7 Rev 0.13
  • Open Eye - VEC Statistical 2.0
  • Open Eye - VEC Statistical 3.0

The preset includes the settings made with the following sibling commands:

Presets can only be saved from the measurements Setup dialog. There is no programming command for this task.

Requires FlexDCA revision A.05.60 and above.

Example Commands

:MEASure:TDEQ:PRESet "MyPreset"  //  Load your saved preset.
:MEASure:TDEQ:PRESet:SELections?  //  Get list of saved presets.

Measurement Ready?

To confirm that the measurement is ready to read, you can query the measurement's status:

if ('CORR' in Flex.query(':STATus?')):
	measurement = Flex.query('?')

If averaging is turned on (:ACQuire:AVERaging), you can also confirm if the measurement result is ready by comparing the number of specified averages (:ACQuire:ECOunt?) versus the number of measurement sweeps that have occurred (:COUNt?). The technique uses the :COUNt? common measurement query. For example,

if (Flex.query(':COUNt?') >= Flex.query(':ACQuire:ECOUNt?')):
	measurement = Flex.query('?')

You can also use an acquisition limit lest to test that a number of waveform samples, or pattern acquisitions have completed before returning a measurement. Refer to the :LTESt:ACQuire:CTYPe command.

Common Measurement Child Queries

This command supports the use of the following common measurement queries: :LOCation?, :COUNt?, :MAXimum?, :MINimum?, :MEAN?, and :SDEViation?.