EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 467)

SCPI Command Reference
OTDR 453
Product-Specific Commands—Description
:TRACe[1..n]:CATalog?
Description This query returns all the available labels
associated to a trace, at a given wavelength.
*RST clears this setting.
Syntax :TRACe[1..n]:CATalog?
Parameter(s) None
Response Syntax
Response(s) Catalog:
The response data syntax for is
defined as a
BLOCK RESPONSE DATA> element.
Returns a list of labels corresponding to the
acquired or loaded wavelengths.
Example(s) MMEM:LOAD:TRAC "Trace1.trc" (Where
"Trace1.trc" is an existing file)
TRAC:CAT? Returns "TRC1,TRC2,TRC3,TRC4" if 4
acquisitions at different wavelength values are in
the loaded file.