Anritsu MW9076 Series User manual

Read this manual before using the equipment. Keep this manual with the equipment.
Optical Time Domain Reflectometer
Service Manual
MW9076 Series

MW9076 Series Optical Time Domain Reflectometer Service Manual

Printed in Japan
Document No.: M–W1659BE
ANRITSU CORPORATION 5-10-27, Minamiazabu, Minato-ku, Tokyo 106-8570 Japan / Phone: [phone]

Fifth Edition
Read this manual before using the equipment.
Keep this manual with the equipment.
MW9076 Series
Optical Time Domain Reflectometer
Service Manual
Measurement Solutions
ANRITSU CORPORATION
Document No.: M-W1659BE-5.0

ii
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. Insure that you clearly understand the meanings of the
symbols BEFORE using the equipment.
Some or all of the symbols may not be used on this equipment. In addition, when drawings are included in this
manual, labels on the equipment may not be shown on them.
Safety Symbols Used in Manual
DANGER
WARNING
CAUTION
Safety Symbols Used on Equipment and/or in Manual
The following safety symbols are used inside or on the equipment near operation locations, and/or in manual to
provide information about safety items and operation precautions. Insure 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 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
Service Manual
1 November 1999 (First Edition)
12 September 2001 (Fifth Edition)
Copyright © 1999-2001, 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
This indicates a very dangerous procedure that could result in death or serious
injury if not performed properly.
This indicates a hazardous procedure that could result in death or serious injury
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

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For Safety
For safety, do not open the equipment covers.
If repair is required, contact the sales representative, branch office, or
agent at the telephone number and address given in the document or
in the equipment operation manual.
Although not recommended by Anritsu Corporation, if it is really im-
perative to open the covers for emergency repair, take great care not
to touch any dangerous parts.
Always request repair by a trained engineer who understands the
hazards.
Anritsu Corporation will not accept liability for any injuries sustained
as a result of opening the equipment covers.

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For Safety
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 loca-
tions at which the alert mark shown on the left is attached. If the
operation, etc., is performed without heeding the advice in the
operation manual, there is a risk of personal injury. In addition,
the equipment performance may be reduced.
Moreover, this alert mark is sometimes used with other marks and
descriptions indicating other dangers.
2. Laser radiation warning
• NEVER look directly into the cable connector on the equip-
ment nor into the end of a cable connected to the equipment.
If laser radiation enters the eye, there is a risk of injury.
• Laser Radiation Markings on a following page show the Laser
Safety label attached to the equipment near the cable connec-
tor.
3. When supplying power to this equipment, connect the accessory
3-pin power cord to a 3-pin grounded power outlet. If a grounded
3-pin outlet is not available, before supplying power to the equip-
ment, use a conversion adapter and ground the green wire, or
connect the frame ground on the rear panel of the equipment to
ground. If power is supplied without grounding the equipment,
there is a risk of receiving a severe or fatal electric shock.
4. This equipment cannot be repaired by the user. DO NOT attempt
to open the cabinet or to disassemble internal parts. Only Anritsu-
trained service personnel or staff from your sales representative
with a knowledge of electrical fire and shock hazards should ser-
vice this equipment. There are high-voltage parts in this equip-
ment presenting a risk of severe injury or fatal electric shock to
untrained personnel. In addition, there is a risk of damage to pre-
cision parts.
HIGHVOLTAGE/高電圧
DANGER/感電警告
or
Repair
WARNING

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For Safety
WARNING
5. This equipment should be used in the correct position. If the cabi-
net is turned on its side, etc., it will be unstable and may be dam-
aged if it falls over as a result of receiving a slight mechanical
shock.
6. 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 explo-
sion causing severe injury or death.
7. DO NOT short the battery terminals and never attempt to disas-
semble it 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 it, 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, irrigate them with clean running water and seek medi-
cal help. If the liquid gets on your skin or clothes, wash it off care-
fully and thoroughly.
8. 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, irrigate them with clean running water and seek
medical help. If the liquid gets on your skin or clothes, wash it off
carefully and thoroughly.
Falling Over
Replacing Battery
Battery Fluid
LCD

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For Safety
Laser Radiation Markings
This equipment uses parts radiating Class 1 or Class 2 laser radia-
tion. The warning labels shown below are attached near the laser-
radiation locations.
The danger classification specified by JIS, IEC Pub 60825-1 and
21CFR1040.10 are explained below.
OTDR light source Visible LD light source
IEC Pub 60825-1 Class 1 Class 2
21 CFR 1040.10 Class 1 Class 2
Class 1 Safe laser presenting no danger when used according to
design specifications.
Class 2 Laser radiating in 400 to 700 nm wavelength range. In
principal, this class of laser is not safe, but the danger to
the eyes is eliminated by the eye avoidance reaction in-
cluding the blink response.
Label Attachment Positions
FDA (Attached only for exportation
to the United States of America)
(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)
(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)