User guide

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Continuous A
Only pattern A is output repeatedly.
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Continuous B
Only pattern B is output repeatedly.
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Alternate AB
The output stream switches between pattern A and pattern B.
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Single Shot B
With this option selected, the Insert B button is enabled.
3
Select OK when your selection is complete.
Manually Inserting Pattern B into the Output Stream
You can insert a single shot of pattern B into the continuous stream of pattern A:
1
Click Alt. Pattern and Aux In menu item from the PG Setup submenu to open
the Alternate Pattern Control dialog box.
2
Select Single Shot B and click OK to close the dialog box.
3
During the test run, press the Insert B button on the screen.
This inserts a single occurrence of pattern B into the output stream of pattern A.
Inserting Pattern B via External Signal
You can configure the Serial BERT to insert pattern B into the continuous output
stream of pattern A according to an external signal:
1
Connect an external instrument to the Aux In port.
The signals received at this port must be TTL-compatible. The granularity for
the insertion of pattern B via external signal is 512 bits.
2
Click Alt. Pattern and Aux In menu item from the PG Setup submenu to open
the Alternate Pattern Control dialog box.
Setting up the Pattern Generator 4
Agilent J-BERT N4903B High-Performance Serial BERT 163