EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) - Manual (Page 510)

SCPI Command Reference
502 FTB-5240S/5240BP
Product-Specific Commands—Description
:SENSe[1..n]:WAVelength[:RANGe]:
STARt
Description This command sets the start wavelength for
acquisition range.
For this command to be accepted, the OSA
module must be in Ready state with no
acquisition in progress.
At *RST, this value is set to 1530.0 nm (C-band
lower limit).
Syntax :SENSe[1..n]:WAVelength[:RANGe]:STARt<wsp
><Start[<wsp>NM]>|MAXimum|MINimum
Parameter(s) Start:
The program data syntax for <Start> is defined
as a <numeric_value> element followed by an
optional <SUFFIX PROGRAM DATA> element.
The allowed <SUFFIX PROGRAM DATA>
element is NM. The <Start> special forms
MINimum and MAXimum are accepted on input.
MINimum allows to set the instrument to the
smallest supported value.
MAXimum allows to set the instrument to the
greatest supported value.
Minimum wavelength for acquisition range.
Range is device-dependent.