INNO Instrument VIEW600, Руководство пользователя

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Chapter 4 OTDR test 38 Chapter 4 OTDR Module
Common Setting
“Common” is used to set “loss measure method”, “attenuation measure method”,
“application option”, “display option” and “Path of the file to be saved”. Please
refer to the following picture.
Introduction to the measuring methods:
TPA: Four points event loss
：
Event Loss can be computed by LSA. The loss dis-
played in event lists can be computed by 4 point method. Set the points as a,A,B
and b
： fitting 2 straight line from the areas of a point to A point and b point to B
point ： so as to produce event loss result from interception of the 2 lines.
LSA: TPA(Two-points Analysis method)
：
Difference between these 2 lines on the
Y-axis can produce the loss between these 2 lines. (Loss A-loss B)
Introduction about application option:
a) Light check: Before setting the measurement, please check if there is com-
munication light (other light except the test light source) in the fiber under test. If
communication light exists, then error message will be shown and the testing will
be terminated.
b) Fiber connector check: Please check if the fibers under test are normally con-
nected to the testing port. If connection problem exists, then error message will be
shown on the screen.
c) Auto save: It is used to automatically save the measuring information after
checking is completed.
d) Auto amplification: It is used to automatically amplify the point which has been
selected as event point in measurement interface.
e) Save message reminder: It is used to set whether to inform you to save the ac-
tive measured file before next measurement started.