Extron Electronics VFL 101 User Guide - Manual

VFL 101 • User Guide
This guide provides instructions for an experienced technician to operate
and maintain the VFL 101 fiber optic fault locator.
The VFL 101 is a visible red laser source designed to troubleshoot faults
on fiber optic cables. Used with the Extron Fiber Optic Termination Kit, it
ensures connector and cable integrity.
WARNING: The VFL 101 is a registered Class II Laser Product. Never look directly
into the optical output.
Inspecting Connectors
NOTE: Always clean the cable connector and the universal adapter optical output of
the VFL 101 before connecting them together.
1. Attach the cable and connector to the 1.25 mm universal adapter.
2. Press and hold (1 second) the On/Off button to turn on the
VFL 101. The red LED will illuminate.
3. Observe the connector for faults. Visible red light indicates a
break in the light path between the connector and cable.
Maintenance
Replacing the Battery
1. Remove the screw on the back of the unit and pull the unit
apart.
2. Remove the AAA battery and place the new battery in the unit
ensuring the [ + ] and [ – ] poles of the battery align with the
poles printed inside the compartment.
3. Reassemble the unit, then replace and tighten the screw.
The VFL 101 contains no user serviceable parts. Except for changing
batteries, the instrument must be returned to Extron for repair.
Optical Output Cleaning
4. Use lint-free optical cleaning wipes and optical quality cleaning
fluid to clean the universal adapter.
Troubleshooting Cables
Since it emits a visible laser light, the VFL 101 can be a useful
troubleshooting tool.
To Locate a Severe Signal Loss:
1. After connection to the fiber cable, turn the VFL 101 on and
inspect along the length of fiber.
2. If any part of the fiber glows red, it most likely indicates a
sharp bend or break causing severe signal loss, (see illustration
at right).
HOLD 1 sec
VFL 101
Red Glow
HOLD 1 sec
VFL 101
Red Glow
AU C I N T O
LASER RADIATION -
DO NOT STARE INTO BEAM
PULSE RATE: 2Hz, 50% DUTY
CLASS II LASER PRODUCT
WAVELENGTH: 610
MAX. OUTPUT: 1mW
- 690nm
HOLD
1 sec
VFL 101