
ST connector
Ferrule
adapter
Panduit Visual Fault Locator
Operation and Maintenance Instructions
Part Numbers: FJMVKITY, FVFLY
© Panduit Corp. 2014
INSTALLATION INSTRUCTIONS
INTRODUCTION
The FVFLY Visual Fault Locator provides a visual method to verify field fiber contact with the pre-polished fiber stub when terminating
SC or ST Opti-Crimp Pre-polished Crimp Connectors and FJ Opti-Crimp Jack Modules.
FVFLY VISUAL FAULT LOCATOR SPECIFICATIONS
Product: Class II Laser
Wavelength: 650 ± 10nm
Maximum Output Power: < 1mW
Operating Temperature: 32-104° F (0-40° C)
FVFLKITY INCLUDES:
FVFLY Visual Fault Locator
FVFLPCY Visual Fault Locator Patch Cord (50/125µm)
(For use with 50/125µm and 62.5/125µm connectors)
Operation and Maintenance Instructions
SAFETY PRECAUTIONS
The FVFLY contains a Class II laser product. Under normal, correct
operation, the FVFLY is safe to the human body.
WARNINGS
• NEVER look into the path of the Laser Beam.
• NEVER
Direct eye contact with laser beam may cause serious eye injury and should be avoided at all costs. If direct eye exposure
has been suspected, seek medical attention immediately.
• NEVER
locator is not connected to any electronics or active equipment during termination.
CAUTION: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous
radiation exposure. Tampering with the device or any labels in any way may also result in injury and voids warranty.
look into the end of a fiber that may have any visual fault locator, or any other laser, coupled to it.
launch visual fault locator into active equipment or microscope. Make sure that the end opposite the Visual Fault
BATTERY INSTALLATION
The FVFLY is shipped with batteries installed. There is a pull tab to prevent battery drainage during shipment. Remove the pull tab before
using the unit.
Make sure that the unit is OFF (green LED is off) and that the dust cap is on. Remove the slide cover located at the rear of the unit. Insert
two (2) new AA batteries of equal condition.
OPERATION AND CARE
• To turn on the FVFLY, press and hold the ON/OFF button for approx. 2-3 seconds. The green LED will illuminate to indicate that the
unit is on. The green LED will blink if the batteries require replacing.
• To toggle between continuous and pulsed modes, use the 2Hz button. In continuous mode the red LED will be off and in the 2Hz
mode the red LED will be on.
• Always clean the ST connector on the FVFLPCY before connecting to the FVFLY.
• NEVER rotate the FVFLPCY when mated to the FVFLY or another connector. This will cause damage to the FVFLPCY and the
connector.
• FVFLY should be kept away from water, dust, static electricity, and environments of extreme temperature.
• Exercise care when handling the FVFLY. Do not drop your FVFLY on hard surfaces.
• Always replace the FVFLY dust cap and switch the unit off after use.
• Remove the batteries for prolonged periods of storage.
MAINTENANCE
Clean both ends of the FVFLPCY and FVFLY after 50 matings or sooner if performance diminishes.
1. Clean ST connector ferrule endface with a lint-free wipe (FWP-C) soaked with alcohol (reagent grade isopropyl alcohol, with a
minimum 90% concentration).
2. Clean Ferrule Adapter end by unscrewing housing and removing split sleeve. Clean the ferrule endface with an alcohol soaked lint-free
wipe. Clean the split sleeve with an alcohol soaked cleaning swab (FSWB-C). Replace the split sleeve onto ferrule and screw housing
into place securely. Do not mix the split sleeve from the FVFLY with the FVFLPCY.
3. Clean FVFLY output by unscrewing housing and removing split sleeve. Be careful not to lose the small spacer ring around the ferrule.
Clean the ferrule endface and split sleeve as in step 2. Replace the split sleeve onto ferrule and screw housing into place securely.
NOTE: Replace the split sleeves if the FVFLPCY continues to have diminished performance after three cleanings. Additional split
sleeves for the FVFLPCY are located in the FVFLPCY package. Additional split sleeves for the FVFLY are stored in the battery
compartment of the FVFLY.
FS068
For Technical Support: www.panduit.com/resources/install_maintain.asp
Page 1 of 2

© Panduit Corp. 2014
1
Red glow
Insertion
mark
FVFLY
patch cord
After connecting the FVFLY Fiber Visual Fault Locator to the
Opti-Crimp connector ferrule (with the included patch cord), turn
the FVFLY “on”. Notice the red glow in the connector ferrule.
While carefully inserting the cleaved field fiber into the connector
using constant light pressure, notice the red glow diminish as the
cleaved field fiber approaches the pre-polished fiber stub in the
connector. The insertion mark on the fiber will also approach the
end of the connector ferrule.
WHY DOES THE FERRULE HAVE A RED GLOW? The red
laser light from the FVFLY Fiber Visual Fault Locator will continue
to radiate from the end of the pre-polished fiber stub until optimum
contact is made between the cleaved field fiber and the prepolished fiber stub in the connector. As the field fiber approaches
the pre-polished fiber stub, less red laser light radiates from the
end of the pre-polished fiber stub as it begins to continue through
the field fiber.
Red glow
Gap between
end faces
2
Red glow
diminished
Slight bow
in fiber
Insertion mark
even with
ferrule end
When the cleaved field fiber stops solidly against the pre-polished
fiber, the red glow will diminish until it is barely noticeable or
disappears. The insertion mark should be even with the back
edge of the connector ferrule. Continue to maintain light pressure
until a slight bow forms in the fiber to maintain contact between
the cleaved field fiber and the pre-polished fiber stub. Crimp the
connector one time. The red glow should remain diminished
(barely noticeable) after crimping the connector.
WHY DOES THE RED GLOW DIMINISH? When optimum contact
is made between the cleaved field fiber and the pre-polished fiber
stub, the red laser light continues through the field fiber rather than
radiating from the end of the pre-polished fiber stub. If the end
faces make contact and the red glow does not diminish
significantly, a poor cleave may be preventing optimum face-to-face
contact. This allows red laser light to radiate from the end of the
pre-polished fiber stub rather than continuing through the field fiber.
If this occurs, re-strip and re-cleave fiber.
Optimum contact
between end faces
Red glow
diminished
INSTALLATION INSTRUCTIONS
FS068
Panduit Opti-Crimp Connectors: Optimal Crimp Termination with FVFLY
The FJMVKITY Opti-Crimp Connector Termination Kit includes the FVFLY Fiber Visual Fault Locator (also available separately). The FVFLY Fiber Visual Fault Locator provides a visual method to verify field fiber contact with the pre-polished fiber
stub when terminating SC, ST, or FJ Opti-Crimp Pre-polished Crimp Connectors or Jack Modules. This provides the installer
with a definitive signal that optimum face-to-face contact has been made, at which time the connector should be crimped. It
takes the guesswork out of crimp connector termination to achieve the highest performing crimp termination yields.
IMPORTANT:
Always refer to safety precautions on opposite page, and the installation instructions included
with the specific connectors to be terminated before
proceeding with termination.
For Instructions in Local Languages
and Technical Support:
www.panduit.com/resources/install_maintain.asp
www.panduit.com
Page 2 of 2
E-mail:
techsupport@panduit.com
Phone:
866-405-6654