AFL FlexScan FS200 OTDR Короткий довідник - Сторінка 5
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OTDR Modes: Live Fiber Detection and Launch Quality Check
Live Fiber Detection
To prevent service disruption on live PONs, FlexScan performs a Live
Fiber check prior to every OTDR test. If a live fiber is detected,
FS200-50B/100/300 models display a warning screen and do not allow
testing; FS200-60/304 displays a warning
complete a test at 1650 nm only.
Launch Quality Check
An optional launch quality check enables users to detect dirty,
damaged, poorly seated, or mismatched (UPC to APC) connectors.
To perform the launch quality check:
1. With the Launch Quality Check option
General Settings screen, initiate an OTDR test.
2. The FlexScan will assess the loss and reflectance at the OTDR's
connection to the launch cord (fiber ring) or fiber under test.
3. If excess loss or reflectance is detected, the OTDR displays the
'Launch Quality is Poor' warning screen
user may chose to perform one of the following:
– Cancel a test by touching either Cancel
– Clean connectors, then repeat the launch quality check by
touching Re-check
– Continue testing without checking and cleaning the connection by pressing Continue
Note: Testing a fiber with poor launch quality may produce poor test results.
and allows the user to
A
enabled in the OTDR or
B
. From this screen the
C
or Back
D
F
.
A
D
.
E
5
B
C
F
G
.
G
E