Technical data

Only pattern B is output.
• ABHalf
Pattern A and pattern B are sent alternatively (one instance A, one instance B,
and so on).
This command must be used together with the “[SOURce
[1]]:PATTern:APCHange:MODE[?] ” on page 108 and “[SOURce
[1]]:PATTern:APCHange:SOURce[?] ” on page 110.
For instructions on how to use these commands, refer to “How the Serial BERT
Uses Alternate Patterns” on page 55.
The selection ABHalf is new for the Serial BERT.
[SOURce[1]]:PATTern:APCHange:SOURce[?]
IAgilentN490xPGAuxIn.Source (not IVI-compliant)
[SOURce[1]]:PATTern:APCHange:SOURce EXTernal | INTernal | BLANking
[SOURce[1]]:PATTern:APCHange:SOURce?
EXT | INT | BLAN
EXTernal
This command defines how the Serial BERT determines the pattern to be output.
The following alternatives are available:
• INTernal
Alternate pattern output is determined internally by the instrument (for
example, from the user interface or SCPI commands).
• EXTernal
Alternate pattern output is determined by the signal at Aux In. This can either
be edge-sensitive or level-sensitive.
• BLANking
Output can be shut off according to the level at Aux In. If Aux In high, output
is generated, if Aux In low, no output.
The query returns the current control of the alternate pattern output.
5 SCPI Command Reference
110 Agilent J-BERT N4903B High-Performance Serial BERT
IVI-COM Equivalent
Syntax
Return Range
*RST Value
Description