Extron Electronics VFL 101 User Manual

VFL 101 • User Guide

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VFL 101

Red Glow

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.

VFL 101

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AUC I NTO

LASER RADIATION -

DO NOT STARE INTO BEAM

WAVELENGTH: 61

MAX. OUTPUT: 1mW PULSE RATE: 2Hz, 50% DUTY CLASS II LASER PRODUCT

- 690nm

Red Glow

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).

VFL 101

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VFL 101 • Setup Guide (Continued)

To Locate or Trace a Single Fiber Cable:

1. After connection to the ﬁber cable, turn the VFL 101 on.

2. The VFL 101 light source is visible. Locate the red light on the

other end of the ﬁber cable, (see illustration at right).

Specications

NOTE: This device is a class 2 (II) laser product. It meets the safety regulations of

Optical specications

Number/type ................................ 1 laser emitter

Connectors ................................... (1) 1.25 mm universal connector with LC

Wavelengths ................................. 635 nm

General

Power ........................................... Internal, supplied by a battery

Power consumption ...................... 1.5 VDC, 0.8 A

Batteries

Number/type ................................ 1 AAA battery (1.5 V alkaline

Operating time (nominal) .............. 16 hours

Temperature/humidity ................... Storage: -22 to +140 °F (-30 to +60 °C)

Cooling ........................................ Convection, no vents

Thermal dissipation ....................... 0.5 BTU/hr

Enclosure type .............................. Plastic

Enclosure dimensions.................... 2.8" H x 1.4" W x 0.6" D (7.1 cm H x 3.6 cm W x 1.5 cm D)

Product weight ............................. 0.1 lb (<0.1 kg)

Shipping weight ........................... <1 lb (<1 kg)

Vibration ...................................... ISTA 1A in carton (International Safe Transit Association)

Regulatory compliance

Safety ........................................... EN 61010-1

EMI/EMC ...................................... EN 61000-4, EN 61326-1

Warranty ...................................... 3 years parts and labor, excluding battery

NOTE: All nominal levels are at ±10%.

IEC-60825, FDA 21 CFR 1040.10, and FDA 21 CFR 1040.11.

and MU adapters

or 1.2 V rechargeable)

/ 10% to 90%, noncondensing Operating: +14 to +122 °F (-10 to +50 °C) / 10% to 90%, noncondensing

(Excluding connectors.)

VFL 101

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Red Glow

NOTE: Speciﬁcations are subject to change without notice.

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68-2102-01

Rev. A 06 11