4.5 TRACe Subsystem Commands
4-27
4
OTDR Commands
(Cont’d)
Example: trac:load:text?
#6140479 //SCPI data size message for binary data transfer
WL = 1310 nm //Wavelength
FBR = SM //Fiber Type
DR = 5 km //
PW = 50 ns [ER] //Pulse Width and resolution type
AVG = 6144 //Number of hardware averages
IOR = 1.467700 //IOR value
BSC = –78.50 //BSC value
DATE = 08/13/09 //Date of test
TIME = 10:19 PM //Time of test
MXDB = 64 dB //dB Range
RESO = 0.200 m //Resolution value
DX = 0.20440100621721 m //Point spacing
PTS = 25001 //Number of data points in the trace
//Start of trace data points
1000
9741
41291
41923
.....
9741
9741
0
//End of trace data points
Events 1 //Number of events found by analysis
Dist 1.0505 km //Event distance
Type E //Event type
Loss >3.00 dB //Event loss value
Reflectance N/A //Event reflectance value
dB / km 59.420 dB //dB/km Loss value
Cumulative Loss 1.81 dB //Cumulative loss value
Response: SOR trace data as an array of bytes per SCPI binary transfer specifications
Errors: (–108, "std_tooManyParameters, Parameter not Allowed")
(–200, "std_execGen, Test is Active")
(–224, "std_illegalParmValue, Invalid Parameter Value")
(–400, "std_queryGen, Trace Not Ready")
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