EXFO FTB-7000 OTDR Series for FTB-500 - Handbuch (Seite 352)

SCPI-Befehlsreferenz
338 Serie FTB-7000
Product-Specific Commands—Description
D = Reflectance (always in dB) <NR3 NUMERIC
RESPONSE DATA>
E = Cumulative (always in dB) <NR3 NUMERIC
RESPONSE DATA>
Here is the list of all possible event types:
1 = Positive splice
2 = Negative splice
3 = Reflection
4 = End of analysis
The End of analysis event does not necessarily
correspond to the last event of a fiber link. It
indicates that the analysis has stopped before the
end of the link because the instrument has
reached the limit of its dynamic range.
In most cases, the OTDR analysis will return the
type of the last event as being either reflective or
non-reflective (event type 3 or 2).
Example(s) CONF:ACQ:MODE ACQUISITION
INIT
INIT:STAT? Returns 0 when acquisition is
complete.
CALC:ANA TRC1
CALC:EVEN:COUN? TRC1 Ex.: Returns 4
(corresponding to 4 events).
CALC:EVEN? TRC1,1 (where 1 is the event
number. Values 1 to 4 are valid). Returns the
event corresponding to the specified number.
See Also MMEMory[1..n]:LOAD:TRACe
TRACe[1..n]:CATalog?
:CALCulate[1..n]:EVENt?