VeEX OTDR FX150+ Series, User Manual

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OTDR Series e-Manual, D07-00- 076P -RevD00 Page 55 of 109
5. Select the operation mode.
CW : Continuous Wave. Select this option to turn on the VFL continually to check for
faults.
1 Hz
: Pulse. Select this option to send intermittent light pulses. In some cases, this
makes it easier to identify faults (than continuous light). It can also be used with audible
detectors (toners) that can identify faint light or in well-lit (bright) environments.
6. Press Auto Off . When VFL application is exited, the VFL powers down automatically.
7. Press Turn ON to power the laser. The Caution box turns yellow.
8. You will observe that a red light emits from the end of the fiber to confirm continuity. This
red light will also appear at splices, joints, connectors, ODLs, etc. if any light is leaking.
9. Press
Turn OFF
.
10. Disconnect the cable and replace covers.
When not in use, disconnect the cord from the port, replace dust covers, and
keep the port cap securely closed.
For patchcords with dark cabling or any outdoor cable or bend-insensitive
patchcords (armored cables), VFL will not work because there is no way to bend
fibers.
6.10 Optical Light Source (OLS)
The unit can be equipped with an optional Optical Light Source (OLS) to use in conjunction
with the OPM and test the entire fiber infrastructure. It identifies microbends, bad
splices/connectors, and fiber breaks through visible laser light leakage. Use the automated
feature to control both units at each end and test the fiber (multimode or singlemode) at
different wavelengths. The OLS radiates continuously or in pulses.
To see the most recent OLS specifications, go
www.veexinc.com .
PROTECT YOUR EYES!
Never look directly into the OLS test port. The laser radiation emitted can be
harmful to your eyes.