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5 Introduction to Operation of VFL
Click VFL functional module on the home page to enter VFL main operation interface
directly.
Fig. 5-1 Main Operation Interface Diagram of VFL
VFL provides two kinds of using status--“bright permanently”, “twinkling”. Clicking the
button “bright permanently”, the VFL will enter turn-on status of permanent lightening; clicking
the button “twinkling”, the VFL will enter turn-on status of 2Hz twinkling; clicking the button
“OFF”, the VFL will turn off immediately.
When clicking the button “auto turn-off”, the dialog box of auto turn-off setting is ejected.
Operator can conduct corresponding setting on the dialog box. Auto turn-off function provides
options of “OFF, after 5 min, after 10 min, after 30 min, after 1 hour, after 2 hours”. The default
setting is “10 min”, i.e., turns off after 10 min. No matter it is under which kind of auto turn-off
status, when clicking the button “OFF”, the “light permanently” or “twinkling” status of
VFL will be turned off.
Fig.5-2. Operation Interface Diagram of Auto Shutdown of VFL
On VFL interface, after turning on the VFL function, under turn-on status, users can enter
into OTDR interface through home page interface to conduct OTDR measurement; meanwhile, it
will provide a status window on the status bar to show the ON or OFF status.
