Technical data

• AB Half
Pattern A and pattern B are sent alternatively (one instance A, one instance B,
and so on).
The following table shows how these commands work together:
Table 7
Source Mode Description
External LLevel The signal at Aux In
controls which half of the
pattern is output.
If Aux In=logic high,
pattern B is sent.
If Aux In=logic low,
pattern A is sent.
REdge When a rising edge occurs
at the Aux In, a single
occurrence of pattern B is
inserted into a continuous
pattern A output.
Internal Alternate The AlternatePattern/
Select command controls
which half of the pattern is
output. The options are:
pattern A only (A half)
pattern B only (B half)
alternating A B (AB half)
Oneshot IVI-COM: The BShot
command inserts one
instance of pattern B into
the output.
SCPI:
The :APCHange:IBHalf
command inserts one
instance of pattern B into
the output.
Recommended Programming Techniques 3
Agilent J-BERT N4903B High-Performance Serial BERT 57