Specifications

5-23
System Command Reference Section
Pattern Generator TRIGGER OUTPUT
SOURce3:TRIGger:ZSUB<n> <numeric value>
This command selects the position within the PRBS at which the trigger pulse is to be
output whenever a Zero Substitution PRBS is selected. The number ‘n’ must be one of 7,
10, 11 and 13. The parameter must be in the range 0 through (pattern length − 1).
The *RST selection is 0 for n = 7, 10, 11 and 13.
SOURce3:TRIGger:MDEN<n> <numeric value>
This command selects the position within the PRBS at which the trigger pulse is to be
output whenever a Mark Density PRBS is selected. The number ‘n’ must be one of 7, 10,
11 and 13. The parameter must be in the range 0 through (pattern length − 1).
The *RST selection is 0 for n = 7,10,11 and 13.
SOURce3:TRlGger:UPAT<n> <numeric value>
This command selects the position within the PRBS at which the trigger pulse is to be
output whenever a Zero Substitution PRBS is selected. The number ‘n’ must be in the
range 0 through 12. The parameter must be in the range 0 through (pattern length − 1).
The commands under this node affect the storage of information as defined in the
following table:
The *RST selection is 0 for n = 0 through 4.
SOURce3:TRlGger:APATtern<n> ABCHange|SOPattern
This command control the trigger output when an alternate pattern is selected for output. If
SOPattern (short for Start Of Pattern) is selected, then a trigger pulse is output at the start
of the pattern. If ABCHange (short for A-B CHange) is selected, then the trigger output
changes as the alternate halves change.
The commands under this node affect the storage of information as defined in the table
below:
The *RST selection is ABCHange.
<n> = 0 Current pattern
<n> = 1 thru 4 Non-volatile RAM storage
<n>=5thru12 Diskstorage
<n> = 0 Current pattern
<n> = 1 thru 4 Non-volatile RAM storage
<n>=5thru12 Diskstorage