OptoTest OP940-SW Instruction Manual page 20

OP940-SW
Front Panel Operation
Dual ILRL Mode
Dual ILRL mode is designed to measure insertion loss and return loss for two
wavelengths simultaneously. It allows the quick referencing of both IL and RL
and will display live results for both measurements at two wavelengths. IL measurements
will be displayed as positive values.
Page 1
Page 1
Page 2
A B
B A
Changes the selected wavelength for both measurements
(applicable for FTTX systems only)
Navigates to the IL Reference screen
Navigates to the RL Reference screen
Displays on-screen pass/fail results based on Settings
defined by the user in the Settings mode
Advances to the next page of options
Returns to the Home Screen
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)
Toggles whether the RL Zero correction is active. The RL Zero
correction is set on the RL Ref screen and will reset to 0dB
each time the unit is powered down
Displays on-screen context help for this mode screen
Returns to page 1
Returns to the Home Screen
Page 2
19 of 49