Quantifi Photonics BERT 1005 Series User Manual page 50

8.3.10.1 Configure bathtub scan settings
To configure the bathtub scan, click the BATHTUB tab and configure the following settings:
•
Minimum error threshold: The minimum number of errors to measure for each point. To set the
minimum error threshold, select an appropriate value from the MIN ERRORS drop-down list.
• Voltage decision point: The voltage that is used as the decision point of the bathtub scan. This
usually shows the most useful information at the centre of the eye. To set the voltage decision
point, select an appropriate value from the VOLTAGE drop-down list.
The parameter can also be set to the MIN and MAX value by clicking the dropdown lists in the fields.
8.3.10.2 Start / Stop bathtub scan
The bathtub scan for a channel can be started or stopped by clicking the START / STOP buttons under
the corresponding channel section.
The bathtub scan can be run for multiple channels at the same time by clicking on the START /
STOP ALL buttons.
8.3.10.3 Bathtub scan status
The bathtub scan status of each channel is represented by indicators in the BATHTUB tab as follows:
•
Green – Indicates that the bathtub scan operation has been run and completed.
•
Gray – Indicates that the bathtub scan operation has not been started.
• Orange – Indicates that the operation is currently in progress.
Quantifi Photonics Ltd. Version 2.04
Bit Error Rate Tester | BERT 1005
50