EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 465)

SCPI Command Reference
OTDR 451
Product-Specific Commands—Description
:TRACe[1..n][:DATA]?
Description This query returns all points of the trace
corresponding to the specified trace index. The
trace is the result of a complete acquisition cycle
or a loaded file.
*RST clears this setting.
Syntax :TRACe[1..n][:DATA]?TRC1|TRC2|TRC3|
TRC4
Parameter(s) Label:
The program data syntax for the first parameter is
defined as a
element. The allowed
DATA> elements for this parameter are:
TRC1|TRC2|TRC3|TRC4.
Trace index of the available wavelengths.
Response Syntax