Keysight N437 Series Programmer's Manual page 60

1 Remote Operation
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Command :PARameter:SOURce:EXTernal?
Syntax :PARameter:SOURce:EXTernal?
Description Retrieves the property which defines whether the optional external input is
used or the internal laser of the optical test set is used.
Parameters None
Response <string> 0 | 1
C# (property) LCAMeasParams.ExternalInput
Example :PAR:SOUR:EXT? ? 1
Command :PARameter:SOURce:POWer:STATe?
Syntax :PARameter:SOURce:POWer:STATe?
Description Retrieves the internal laser state, on or off. Note: the value of this property
is only evaluated in advanced mode. In default mode the laser is switched
on or off according to the measurement type.
Parameters none
Response <string> 1 = internal laser is on, 0 = internal laser is off
C# (property) Laser_On
Example :PAR:SOUR:POW:STAT? -> 1
Command :PARameter:SOURce:POWer:STATe
Syntax :PARameter:SOURce:POWer:STATe<wsp>ON|1|OFF|0
Description Switches the internal laser on or off. Note: The value of this property is only
evaluated in advanced mode. In default mode the laser is switched on or
off according to the measurement type
Parameters <string> ON | 1 to switch the laser on, OFF | 0 to switch the laser off
Response none
C# (property) Laser_On
Example :PAR:SOUR:POW:STAT ON
Keysight N437x Series Lightwave Component Analyzer, Programmer's Guide