OptoTest OP940-SW, Инструкция по эксплуатации, Страница: 26 / 52

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OP940-SW
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Changes the selected wavelength for both measurements
(if more than two sources)
Begins the RL reference procedure. The unit will begin looking for
a “reference” reflection, typically an open PC connector, and once
it is found the return loss and distance will be displayed
Interrupts the RL reference procedure in case adjustments need
to be made. This is useful if something is wrong with the setup
Advances to the next page of options
Returns to the Mode Screen
Page 1
Toggles the OP725 between A B and B A directions and
updates the screen to reflect the reference values for the
appropriate direction (only in Bidirectional Mode)
Calculates the difference between the RL reference value and
-14.7dB for each wavelength. This option calculates the return
loss correction for an open flat PC connector and will set the
return loss to -14.7dB
Allows the user to reference return loss using an open
angle-polished connector.
Displays on-screen context help for this mode screen
Advances to the next page of options
Returns to the Mode Screen
Page 2
A B
B A
R
L R
ef
Front Panel Operation
RL Ref
The RL Ref screen is designed specifically to reference return loss and apply temporary
adjustments to the return loss reference. It will run inside of other mode screens, such
as RL, ILRL, and Dual ILRL. References performed in this screen will be globally applied,
except for the case of position 2 in RL Mode.