EXFO FTB-7000 OTDR Series for FTB-500 - Handbuch (Seite 372)

SCPI-Befehlsreferenz
358 Serie FTB-7000
Product-Specific Commands—Description
:CALCulate[1..n]:RBScatter?
Description This query returns the Rayleigh backscatter used
for the trace corresponding to the specified trace
index.
Since *RST clears the RBS value, the returned
value will be 0.
Syntax :CALCulate[1..n]:RBScatter?<wsp>TRC1|TRC2|
TRC3|TRC4
Parameter(s) Label:
The program data syntax for the first parameter is
defined as a <CHARACTER PROGRAM DATA>
element. The allowed <CHARACTER PROGRAM
DATA> elements for this parameter are:
TRC1|TRC2|TRC3|TRC4.
Trace index of the available wavelengths.
Response Syntax <RBS>
Response(s) RBS:
The response data syntax for <RBS> is defined
as a <NR3 NUMERIC RESPONSE DATA>
element.
Returns the Rayleigh backscatter used by the
trace corresponding to the specified trace index.