Agilent Technologies N4906B Serial BERT User Manual page 78

Setting up the Pattern Generator
78
This inserts a single occurence 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 Press the Alt. Pattern and Aux In icon in the PG Setup menu to
open the Alternate Pattern Control dialog box.
3 In the Aux In section, define whether the Serial BERT should insert
pattern B in Level Sensitive or Edge Sensitive mode.
See "Aux In" on page 80 for more information on the different
available modes.
4 Click OK to close the dialog box.
Suppressing the Outputs via External Signal
You can configure the Serial BERT to suppress the output 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 Press the Alt. Pattern and Aux In icon in the PG Setup menu to
open the Alternate Pattern Control dialog box.
3 In the Aux In section, select Output Blanking.
See "Aux In" on page 80 for more information on the different
available modes.
4 Click OK to close the dialog box.
Agilent N4906B Serial BERT, User's Guide, October 2005
Pattern Alternation