THORLABS 4000 Series, Programmer'S Reference Manual, Page: 53 / 97

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3 Commands by Subsystem
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3.10 QCW Pulse Trigger Commands
The
TRIGger[1]
subsystem controls the QCW mode triggering of the instrument.
Note
These commands are valid for LDC4000 and ITC4000 Series instruments only. For LDC4000
and ITC4000 Series instruments the command suffix is 1 (can be omitted).
Table <%+%>: QCW Pulse Trigger Commands
Command Description
TRIGger
Path to trigger functions
[:SEQuence]:SOURce {INTernal|EXTernal}
Set the trigger source
TRIGger[:SEQuence]:SOURce?
Return the trigger source
3.10.1 QCW Trigger Source
Syntax
TRIGger[:SEQuence]:SOURce {INTernal|EXTernal}
TRIGger[:SEQuence]:SOURce?
Description
The
TRIGger[:SEQuence]:SOURce
command sets the source for the QCW pulse trigger to
either internal pulse generator or external pulse source connected through a rear panel BNC
connector.
Example
TRIG:SOUR INT
Sets the trigger source for QCW pulses to the internal pulse generator.
TRIG:SOUR EXT
Sets the trigger source for QCW pulses to the rear panel BNC connector.
TRIG:SOUR?
Queries the trigger source for QCW pulses.
INT
The response is either
INT
or
EXT
.
Note
This command is valid for LDC4000 and ITC4000 Series instruments only.
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