DATACOM TEXTRON MicrOTDR Manuel utilisateur

MicrOTDR

Optical Fault Locator

User Manual

™

Datacom Textron MicrOTDR Specs

Provided by www.AAATesters.com

Datacom Textron

11001 31st Place West

Everett, WA 98204

TEL: 425-355-0590

Toll Free: 800-468-5557

FAX: 425-290-1600

Internet: www.datacom.textron.com

Warranty

The MicrOTDR™Optical Fault Locator is warranted against defects in

materials and workmanship within a period of two (2) years following the

date of purchase of the tester. Any instrument claimed to be defective during

the warranty period should be returned to Datacom Textron’s Factory

Service Center. (Call Datacom Textron for an RMA number prior to

shipment.)

ANY IMPLIED WARRANTIES ARISING OUT OF THE SALE OF THE

MicrOTDR, INCLUDING BUT NOT LIMITED TO IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE

ABOVE STATED TWO (2) YEAR PERIOD. DATACOM TEXTRON

SHALL NOT BE LIABLE FOR LOSS OF USE OF THE TESTER OR

OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES, EXPENSES,

OR ECONOMIC LOSS.

Some states and countries do not allow limitations on how long implied

warranties last or the exclusions or limitation of incidental or consequential

damages, so the above limitations or exclusions may not apply to you. This

warranty gives you specific legal rights, and you may also have other rights

which vary from state to state.

Datacom Textron certifies that this instrument was thoroughly tested and

found to meet its published specifications when shipped from the factory.

document may be used or reproduced in any manner whatsoever, without

written consent of Datacom Textron. Information contained in this document

is believed to be accurate and reliable. However, Datacom Textron may from

time to time make changes to this documentation without notice. Datacom

Textron is not liable for technical or editorial errors or omissions contained

herein. Datacom Textron reserves the right to change the product

specifications at any time without notice.

MicrOTDR™is a trademark of Datacom Textron. All other product names,

brand names, and services identified in this documentation are the property

of their respective companies.

Printed in USA

P/N 14099 Rev A

MicrOTDR User Manual

Page 1

CONTENTS

Page

General ...............................................................4

Safety..................................................................5

Precautions .........................................................6

Front Panel Operating Controls .........................7

Operating Controls.............................................8

Operation............................................................9

Power On............................................................9

Feet/Meters.........................................................9

IOR Selection...................................................10

Measure............................................................10

Maintenance .....................................................14

Repair & Calibration........................................14

Battery Replacement ........................................14

Optical Connector Port Maintenance...............15

Optical Connector Maintenance.......................16

Helpful Hints....................................................17

Customer Support ............................................19

Repair ...............................................................19

Technical Assistance........................................19

Specifications ...................................................20

MicrOTDR User Manual

Page 2

FIGURES

Page

1. Front Panel Operating Controls...................7

2. Power On .....................................................9

3. IOR Selection ............................................10

4. Laser Active...............................................10

5. Single Event Measure................................11

6. Multiple Event Measure ............................11

7. Multiple Event Measure ............................12

8. Measuring Length......................................13

9. Low Battery ...............................................14

10. Helpful Hints .............................................17

11. Helpful Hints .............................................18

MicrOTDR User Manual

Page 3

MicrOTDR User Manual

Page 4

GENERAL

The MicrOTDR Optical Fault Locator is a rugged, lightweight,

hand-held test instrument for locating faults in multimode and

singlemode optical fiber cable. MicrOTDR utilizes patent pending

OTDR (Optical Time Domain Reflectometer) technology to make

fault location measurements to distances up to 20 kilometers, with

pinpoint accuracy. The unit operates at the industry standard

wavelength of 1310 nm, and displays the distance to a fault in

meters or feet.

The MicrOTDR is designed to measure the distance to fiber

events along fiber cables in optical fiber systems. Useful

applications for the MicrOTDR include testing: Wide Area

Networks (WANs), telecommunication spans of up to 20

kilometers, Fiber-to-the-Curb applications, installation of

multimode and singlemode fiber cabling, and military systems.

The unit is an excellent tool for locating faulty connectors,

damaged components, bad splices and breaks in singlemode and

multimode cable sections. It is also much easier to use than an

OTDR for checking reels of fiber optic cable for length and

defects.

The MicrOTDR has been designed with the technician in mind

with many easy to use features. It has a large LCD display for

viewing ease, and can be used on multimode or singlemode

cables. Its' easy "one button" operation is used for activating the

unit's measure function, and the Index of Refraction (IOR) setting

can be field selected with the use of a single button. The

MicrOTDR is designed to record up to seven events, displaying

the distance to each event.

The MicrOTDR is powered by four AA Alkaline batteries that can

provide greater than 13,000 operations. An advanced power

supply circuit ensures maximum battery life. Sensing circuitry

alerts the operator of "low battery" conditions. The auto power-off

circuit turns the unit off 5 minutes after the last reading to

preserve battery power.

MicrOTDR User Manual

Page 5

SAFETY

The MicrOTDR Optical Fault Locator is a Class I laser

product under the requirements of both the U.S. Center for

Devices and Radiological Health, and the American National

Standards Institute1. As such, it presents no hazard to users

who view the output when using proper operating procedures.

However, it is recommended that users should not stare

directly into the beam.

Use of controls or adjustments of procedures other than those

specified herein may result in hazardous LASER light

exposure.

It is important to keep all optical connections and surfaces free

from oils, dirt, and other contaminants to ensure proper

operation. Proper cleaning procedures must be performed on

fiber connectors, connector adapters, etc., before conducting

any measurement tests outlined in this manual.

1American National Standard for Safe Use of Lasers, Publication: ANSI

Z136.I-1993, American National Standards Institute, 11 West 42nd Street,

New York, NY 110036.

MicrOTDR User Manual

Page 6

PRECAUTIONS

Use care when working with any optical transmission

equipment. It is good practice to avoid looking directly at any

optical fibers or optical sources. The MicrOTDR emits a

pulsed laser light for a short period of time, and the user should

not look directly into the connector port. It is best to refer to

your company's safety procedures when working with optical

fibers or laser based systems.

It is important to keep all optical connections and surfaces free

from dirt, oils or other contamination to ensure proper

operation. This applies to all connectors that are connected to

the optical port on the MicrOTDR, as well as the optical port

on the MicrOTDR itself. Scratched or contaminated

connectors can reduce system performance. Refer to your

company practices for cleaning optical connectors. Always

replace the protective dust cap on the MicrOTDR after use.

Note: This equipment has been tested and found to comply with the

limits for a Class A digital device, pursuant to part 15 of the FCC rules.

These limits are designed to provide reasonable protection against

harmful interference when the equipment is operated in a commercial

environment. This equipment generates, uses, and can radiate radio

frequency energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is

likely to cause harmful interference in which case the user will be

required to correct the interference at his own expense.

MicrOTDR User Manual

Page 7

FRONT PANEL OPERATING CONTROLS

MicrOTDR User Manual

Page 8

OPERATING CONTROLS

Optical Port Connector - The port is equipped with

an ST style connector. The wavelength for this port is 1310nm

and can be used for multimode or singlemode applications.

Liquid Crystal Display (LCD) - When the

MicrOTDR is first powered ON, the unit goes through a self-

test, and all display segments, and annunciators are illuminated

on power up.

NOTE: Some of the annuciators illuminated (LINK, and VFL)

on power up are currently not a function used in the

MicrOTDR.

IOR Button - This button selects the Index of

Refraction (IOR) of the optical fiber cable under test. Its range

can be selected from 1.40 to 1.69.

Measure Button -This button when pressed

activates the MicrOTDR's laser, and digital measuring circuits.

Feet/Meter Button - This button will select either

feet or meters as the unit of measure.

ON Button - This button when depressed turns the

MicrOTDR ON and OFF.

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