Anritsu MW9076 Series User manual

Document No.: M-W1659AE-19.0
ANRITSU CORPORATION
MW9076 Series
Optical Time Domain Reflectometer
Operation Manual
For safety and warning information, please read this
manual before attempting to use the equipment.
Keep this manual with the equipment.
19th Edition

ii
Safety Symbols
To prevent the risk of personal injury or loss related to equipment malfunction, Anritsu Corporation uses the
following safety symbols to indicate safety-related information. Ensure that you clearly understand the meanings of
the symbols BEFORE using the equipment. Some or all of the following symbols may be used on all Anritsu
equipment. In addition, there may be other labels attached to products that are not shown in the diagrams in this
manual.
Symbols used in manual
This indicates a very dangerous procedure that could result in serious injury or
death if not performed properly.
This indicates a hazardous procedure that could result in serious injury or death if
not performed properly.
This indicates a hazardous procedure or danger that could result in light-to-severe
injury, or loss related to equipment malfunction, if proper precautions are not taken.
Safety Symbols Used on Equipment and in Manual
The following safety symbols are used inside or on the equipment near operation locations to provide information
about safety items and operation precautions. Ensure that you clearly understand the meanings of the symbols and
take the necessary precautions BEFORE using the equipment.
This indicates a prohibited operation. The prohibited operation is indicated
symbolically in or near the barred circle.
This indicates an obligatory safety precaution. The obligatory operation is
indicated symbolically in or near the circle.
This indicates a warning or caution. The contents are indicated symbolically in or
near the triangle.
This indicates a note. The contents are described in the box.
These indicate that the marked part should be recycled.
MW9076 Series
Optical Time Domain Reflectometer
Operation Manual
25 August 1999 (First Edition)
26 December 2008 (19th Edition)
Copyright © 1999-2008, ANRITSU CORPORATION.
All rights reserved. No part of this manual may be reproduced without the prior written permission of the
publisher.
The contents of this manual may be changed without prior notice.
Printed in Japan
DANGER
WARNING
CAUTION

For Safety
iii
DANGER
NEVER touch parts where the label shown on the left is attached. Such
parts have high voltages of at least 1 kV and there is a risk of receiving
a fatal electric shock.
WARNING
1. ALWAYS refer to the operation manual when working near locations
at which the alert mark shown on the left is attached. If the advice in
the operation manual is not followed there is a risk of personal injury
or reduced equipment performance. The alert mark shown on the left
may also be used with other marks and descriptions to indicate other
dangers.
2. IEC 61010 Standard
The IEC 61010 standard specifies four categories to ensure that an
instrument is used only at locations where it is safe to make
measurements. This instrument is designed for measurement
category I (CAT I). DO NOT use this instrument at locations specified
as category II, III, or IV as defined below.
Measurement category I (CAT I):
Secondary circuits of a device that is not directly connected to a
power outlet.
Measurement category II (CAT II):
Primary circuits of a device that is directly connected to a power
outlet, e.g., portable tools or home appliance.
Measurement category III (CAT III):
Primary circuits of a device (fixed equipment) to which power is
supplied directly from the distribution panel, and circuits running from
the distribution panel to power outlet.
Measurement category IV (CAT IV):
Building service-line entrance circuits, and circuits running from the
service-line entrance to the meter or primary circuit breaker
(distribution panel).

For Safety
iv
WARNING
3. Laser radiation warning
•NEVER look directly into the cable connector on the equipment
nor into the end of a cable connected to the equipment. There is a
risk of injury if laser radiation enters the eye.
•The Laser Safety label is attached to the equipment for safety use
as indicated in "Laser Safety" later in this section.
4. To ensure that the instrument is earthed, always use the supplied
3-pin power cord, and insert the plug into an outlet with an earth
terminal. If power is supplied without earthing the equipment, there is
a risk of receiving a severe or fatal electric shock or causing damage
to the internal components.
5. This equipment cannot be repaired by the operator. DO NOT attempt
to remove the equipment covers or unit covers or to disassemble
internal components. Only qualified service personnel with a
knowledge of electrical fire and shock hazards should service this
equipment. There are high-voltage parts in this equipment presenting
a risk of severe injury or fatal electric shock to untrained personnel. In
addition, there is a risk of damage to precision components.
6. The performance-guarantee seal verifies the integrity of the equipment.
To ensure the continued integrity of the equipment, only Anritsu
service personnel, or service personnel of an Anritsu sales
representative, should break this seal to repair or calibrate the
equipment. If the performance-guarantee seal is broken by you or a
third party, the performance of the equipment cannot be guaranteed.
7. This equipment should always be positioned in the correct manner. If
the cabinet is turned on its side, etc., it will be unstable and may be
damaged if it falls over as a result of receiving a slight mechanical
shock.
Always set up the equipment in a position where the power switch
can be reached without difficulty.
8. When replacing the battery, use the specified battery and insert it
with the correct polarity. If the wrong battery is used, or if the battery
is inserted with reversed polarity, there is a risk of explosion causing
severe injury or death.
Repair
Falling Over
Replacing Battery
Calibration
Electric Shock

For Safety
v
WARNING
9. DO NOT short the battery terminals and never attempt to disassemble
the battery or dispose of it in a fire. If the battery is damaged by any of
these actions, the battery fluid may leak. This fluid is poisonous.
DO NOT touch the battery fluid, ingest it, or get in your eyes. If it is
accidentally ingested, spit it out immediately, rinse your mouth with
water and seek medical help. If it enters your eyes accidentally, do
not rub your eyes, rinse them with clean running water and seek
medical help. If the liquid gets on your skin or clothes, wash it off
carefully and thoroughly.
10.This instrument uses a Liquid Crystal Display (LCD). DO NOT subject
the instrument to excessive force or drop it. If the LCD is subjected to
strong mechanical shock, it may break and liquid may leak.
This liquid is very caustic and poisonous.
DO NOT touch it, ingest it, or get in your eyes. If it is ingested
accidentally, spit it out immediately, rinse your mouth with water and
seek medical help. If it enters your eyes accidentally, do not rub your
eyes, rinse them with clean running water and seek medical help. If
the liquid gets on your skin or clothes, wash it off carefully and
thoroughly.
Battery Fluid
LCD

For Safety
vi
WARNING
Before using this instrument, always ensure that the warning light is lit
when the optical output switch is turned on. If this warning light does not
turn on, the equipment may be faulty and for safety reasons should be
returned to an Anritsu service center or representative for repair.
Optical units for MW9076 Series Optical Time Domain Reflectometer
have Class 1, 1M laser emitting parts as specified in IEC 60825-1, or
Class I, II parts as specified in 21 CFR 1040.10 (Refer to Table 1).
The explanatory labels shown on “Laser Radiation Markings” are
attached
Never use optical instruments to directly view Class 1M laser products.
Doing so may result in serious damage to the eyes.
Table 1
Standard Name
Kind of Light Source IEC 60825-1 21 CFR 1040.10
OTDR light source Class 1 Class I
Visible LD light source Class 1M Class II
CAUTION
Use of controls or adjustments or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
The use of optical instruments with this product will increase eye
hazard.
Laser Safety

For Safety
vii
Class 1, 1M indicate the danger degree of the laser radiation specified
below according to IEC 60825-1.
Class 1: Lasers that are safe under reasonably foreseeable conditions
of operation, including the use of optical instruments for
intrabeam viewing.
Class 1M: Lasers emitting in the wavelength range from 302.5 to 4000
nm that are safe under reasonably foreseeable conditions of
operation, but may be hazardous if the user employs optics
within the beam. Two conditions apply:
a) for diverging beams, if the user views the laser output with
certain optical instruments (for example, eye loupes,
magnifiers and microscopes ) within a distance of 100 mn ;
or
b) for collimated beams, if the user views the laser output
with certain optical instruments ( for example , telescopes
and binoculars ).
And, Class I, IIa, II indicate the degree of danger of the laser radiation
outlined below as defined by 21 CFR 1040.10.
Class I: Class I labels of laser radiation are not considered to be
hazardous.
Class IIa: Class IIa labels of laser radiation are not considered to be
hazardous if viewed for any period of time less than or equal
to 1×103seconds but are considered to be a chronic viewing
hazard for any period of time greater than 1×103seconds.
The wavelength range of laser radiating is in 400 to 710 nm.
Class II: Class II labels of laser radiation are considered to be a
chronic viewing hazard. The wavelength range of laser
radiating is in 400 to 710 nm.

For Safety
viii
Laser Radiation Markings
(Attached when visible LD
light source installed)
FDA (Attached when
visible LD light source
installed and only for
exportation to the United
States of America)
FDA (Attached only for exportation to the
United States of America)
FDA (Attached when visible LD
light source installed and only
for exportation to the
United States of
America)

For Safety
ix
CAUTION
This equipment uses a Poly-carbomonofluoride lithium battery to backup
the memory. This battery must be replaced by service personnel when it
has reached the end of its useful life; contact the Anritsu sales section
or your nearest representative.
Note: The battery used in this equipment has a maximum useful life of
7 years. It should be replaced before this period has elapsed.
This equipment uses memory cards as external storage media for
storing data and programs.
If this media is mishandled or becomes faulty, important data may be
lost. To prevent this chance occurrence, all important data and
programs should be backed-up.
Anritsu will not be held responsible for lost data.
Pay careful attention to the following points.
•Never remove the memory card from the pulse tester while it is being
accessed.
•The memory card may be damaged by static electric charges.
•Anritsu has thoroughly tested all external storage media shipped with
this instrument. Users should note that external storage media not
shipped with this instrument may not have been tested by Anritsu, thus
Anritsu cannot guarantee the performance or suitability of such media.
Do not place in a dusty area.
Clean the magnetic head periodically to ensure normal operation.
Refer to the section on cleaning the head later in this manual.
This instrument is designed for an industrial environment.
In a residential environment this instrument may cause radio
interference in which case the user may be required to take adequate
measures.
Replacing Memory
Back-up Battery
External
Storage Media
Floppy Disk
Use in a residential
environment

x
Equipment Certificate
Anritsu Corporation certifies that this equipment was tested before shipment
using calibrated measuring instruments with direct traceability to public
testing organizations recognized by national research laboratories, including
the National Institute of Advanced Industrial Science and Technology, and
the National Institute of Information and Communications Technology, and
was found to meet the published specifications.
Anritsu Warranty
Anritsu Corporation will repair this equipment free-of-charge if a malfunction
occurs within one year after shipment due to a manufacturing fault, under the
condition that this warranty is void when:
•The fault is outside the scope of the warranty conditions described in the
operation manual.
•The fault is due to mishandling, misuse, or unauthorized modification or
repair of the equipment by the customer.
•The fault is due to severe usage clearly exceeding normal usage.
•The fault is due to improper or insufficient maintenance by the customer.
•The fault is due to natural disaster including fire, flooding, earthquake,
etc.
•The fault is due to use of non-specified peripheral equipment, peripheral
parts, consumables, etc.
•The fault is due to use of a non-specified power supply or in a
non-specified installation location.
In addition, this warranty is valid only for the original equipment purchaser. It
is not transferable if the equipment is resold.
Anritsu Corporation shall assume no liability for injury or financial loss of the
customer due to the use of or a failure to be able to use this equipment.
Anritsu Corporation Contact
In the event that this equipment malfunctions, contact an Anritsu Service and
Sales office. Contact information can be found on the last page of the printed
version of this manual, and is available in a separate file on the CD version.

xi
Notes On Export Management
This product and its manuals may require an Export License/Approval by
the Government of the product's country of origin for re-export from you
r
country.
Before re-exporting the product or manuals, please contact us to confirm
whether they are export-controlled items or not.
When you dispose of export-controlled items, the products/manuals need
to be broken/shredded so as not to be unlawfully used for military purpose.
Disposal Procedure
The product that you have purchased contains a rechargeable battery.
The battery is recyclable. At the end of its useful life, under various state
and local laws, it may be illegal to dispose of this battery into the
municipal waste stream. Check with your local solid waste officials fo
r
details in your area for recycling options or proper disposal.
Lifetime of Parts
The life span of certain parts used in this instrument is determined by the
operating time or the power-on time. Due consideration should be given to
the life spans of these parts when performing continuous operation over an
extended period. These parts must be replaced at the customer's expense
even if within the guaranteed period described in Warranty at the beginning
of this manual. For details on life span, refer to the corresponding section in
this manual.

xii
Crossed-out Wheeled Bin Symbol
Equipment marked with the Crossed-out Wheeled Bin Symbol complies with
council directive 2002/96/EC (the “WEEE Directive”) in European Union.
For Products placed on the EU market after August 13, 2005, please contact
your local Anritsu representative at the end of the product's useful life to
arrange disposal in accordance with your initial contract and the local law.

xiii
CE Conformity Marking
Anritsu affixes the CE Conformity marking on the following product(s) in
accordance with the Council Directive 93/68/EEC to indicate that they
conform to the EMC and LVD directive of the European Union (EU).
CE marking
1. Product Model
Model: MW9076xx Optical Time Domain Reflectometer
2. Applied Directive
EMC: Council Directive 2004/108/EC
LVD: Council Directive 2006/95/EC
3. Applied Standards
•EMC: Emission: EN 61326-1: 2006 (Class A)
Immunity: EN 61326-1: 2006 (Table 2)
Performance Criteria*
IEC 61000-4-2 (ESD) B
IEC 61000-4-3 (EMF) A
IEC 61000-4-4 (Burst) B
IEC 61000-4-5 (Surge) B
IEC 61000-4-6 (CRF) A
IEC 61000-4-11 (V dip/short) B, C
*: Performance Criteria
A: During testing normal performance within the
specification limits.
B: During testing temporary degradation, or loss of
function or performance which is self-recovering.
C: During testing, temporary degradation, or loss of
function or performance which requires operator
intervention or system reset occurs.
Harmonic current emissions:
EN 61000-3-2: 2006 (Class A equipment)
: No limits apply for this equipment with an active input
power under 75 W.
•LVD: EN 61010-1: 2001 (Pollution Degree 2)

xiv
4. Authorized representative
Name: Loic Metais
European Quality Manager
ANRITSU S.A. France
Address, city: 16/18 Avenue du Quebec SILIC 720 Zone de
Courtaboeuf
91951 Les Ulis Cedex
Country: France

xv
C-Tick Conformity Marking
Anritsu affixes the C-Tick marking on the following product(s) in accordance
with the regulation to indicate that they conform to the EMC framework of
Australia/New Zealand.
C-Tick marking
1. Product Model
Model: MW9076xx Optical Time Domain Reflectometer
2. Applied Standards
EMC:Emission: EN 61326-1: 2006 (Class A equipment)

xvi

I
1
2
3
4
5
6
Appendix
Index
7
8
9
About This Manual
This operation manual explains the operation, calibration and maintenance of the
MW9076 Series Optical Time Domain Reflectometer (OTDR). The features of
the OTDR are described in “Section 1 Outline.”
This equipment can be connected to an external computer, from which the equip-
ment can be controlled and the measurement results can be read out. Refer to the
following operation manual for information on the type of interface to be used for
connecting this equipment to an external computer.
MW9076 Series Serial Interface Operation Manual (M-W1660AE)

II
Table of Contents
For Safety ...................................................... iii
About This Manual ........................................ I
Section 1 Outline.......................................... 1-1
1.1 Overview of MW9076 Series Optical Time
Domain Reflectometer ............................................... 1-2
1.2 Features ..................................................................... 1-4
1.3 Loss and Total Return Loss Measurement and
Splice & Return Loss Measurement .......................... 1-11
1.4 Reflection Height Measurement ................................ 1-12
1.5 Total Return Loss Measurement ............................... 1-13
1.6 Linear Approximation Methods LSA/2PA .................. 1-14
Section 2 Before Use ................................... 2-1
2.1 Equipment Composition............................................. 2-2
2.2 Connecting the Power Supply ................................... 2-5
2.3 Battery Pack .............................................................. 2-6
2.4 Names of Parts .......................................................... 2-8
2.5 Replacing the Optical Connector ............................... 2-12
2.6 Installing and Removing the OTDR Main Unit ........... 2-13
2.7 Connecting the Optical Fiber Cable ........................... 2-14
2.8 Connecting Peripheral Units ...................................... 2-15
2.9 Precautions ................................................................ 2-25
Section 3 Setup and Setting of Peripheral
Units ............................................. 3-1
3.1 Setting Method........................................................... 3-2
3.2 Explanation of Setup Screens ................................... 3-6
3.3 Setting of the Peripheral Units ................................... 3-16
3.4 Reading, Saving, and Printing the Settings ............... 3-27
3.5 Preview ...................................................................... 3-33

III
1
2
3
4
5
6
Appendix
Index
7
8
9
Section 4 Operation (OTDR Measurement).... 4-1
4.1 Turning on the Power ................................................ 4-2
4.2 Setting the Measurement Conditions......................... 4-4
4.3 Starting a Measurement ............................................ 4-9
4.4 Reading the Event Table ........................................... 4-10
4.5 More........................................................................... 4-13
4.6 Auto Zoom ................................................................. 4-15
4.7 Editing the Events...................................................... 4-16
4.8 Moving to the Manual Measurement Screen ............. 4-26
4.9 Using the Repeat Task Function ............................... 4-30
4.10 Relative Distance Measurement................................ 4-39
4.11 Comparing Waveforms .............................................. 4-41
4.12 Measurement Examples ............................................ 4-47
Section 5 Operation (OLTS Measurement).... 5-1
5.1 OLTS Function........................................................... 5-2
5.2 Setup ......................................................................... 5-3
5.3 Loss Table ................................................................. 5-10
5.4 Measurement Example (
Optical Loss Measurement ) .... 5-13
Section 6 Operation (CD Measurement) .... 6-1
6.1 Measurement Principles ............................................ 6-2
6.2 Outline of Chromatic Dispersion Measurement ......... 6-4
6.3 Measurement Procedures (Flow) .............................. 6-5
6.4 Details of Measurement Procedures ......................... 6-7
Section 7 Operating the Functions Other
Than Measurements ................... 7-1
7.1 Print ........................................................................... 7-2
7.2 File Operation ............................................................ 7-8
7.3 Auto Increment Function............................................ 7-25

IV.
Section 8 Performance Test and
Calibration ................................... 8-1
8.1 Performance Test ...................................................... 8-2
8.2 Calibration .................................................................. 8-19
8.3 Performance Test Result Record Form ..................... 8-20
Section 9 Maintenance ................................. 9-1
9.1 Optical Connector & Optical Adapter Cleaning............. 9-2
9.2 Cleaning the Floppy Disk Drive ................................. 9-5
9.3 Self-Diagnosis ............................................................ 9-6
9.4 Suggestions for Storage ............................................ 9-8
9.5 Method of Transportation ........................................... 9-9
Appendix ...................................................... App-1
Appendix A Specifications ................................................ A-1
Appendix B Least Square Linear Approximation Method .. B-1
Appendix C Splice Loss Measurement Principle .............. C-1
Appendix D Return Loss Measurement Principle ............. D-1
Appendix E Total Return Loss Measurement Principle .... E-1
Appendix F Settings at Factory Shipment ........................ F-1
Appendix G List of Recommended Printers ...................... G-1
Appendix H Marker Resolution ......................................... H-1
Appendix I Simple OTDR Operation Method .................. I-1
Index ...................................................... Index-1