Setting Measurement Conditions - ADInstruments AD5000 Manual

3.0

Setting Measurement Conditions

Press【SETUP】button on the panel to enter test setting interface
The meaning of items indicated in the following table:
Test Wavelength of OTDR, including 1310nm,1550nm and
Test Wave
1310nm&1550nm 3 kinds of mode.
Auto Mode: AD5000 will set best parameters for current test
Test Mode
Manual Mode: set parameters manually.
Under averaging test mode(TEST),longer test time has better SNR
Test Time
(Signal Noise Ratio) but takes more time.
Test distance of OTDR .adjust only in manual mode,in auto mode this
Test Range
item set as "Auto".
Wider pulse has stronger backward signal, OTDR has longer detecting
distance but wide pulse width will cause the saturation of backward
signal, make blind area bigger.so the selection of pulse width has close
Pulse Width
relationship with the length of fiber. Long fiber has wide pulse width..
pulse width could only modified in "Manual"mode.
Sampling resolution of test, High resolution has more sample point and
Resolution
high precision,but take more memory space.
Unit Unit of test result,including km/kfeet/miles.
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