YOKOGAWA AQ7280 OTDR User manual

User’s
Manual
IM AQ7280-02EN
6th Edition
AQ7280 OTDR
Getting Started Guide

IM AQ7280-02EN 1
6th Edition: December 2017 (YMI)
All Rights Reserved, Copyright © 2014, Yokogawa Test & Measurement Corporation
Thank you for purchasing the AQ7280 OTDR (Optical Time Domain Reflectometer). This manual focuses on the handling precautions,
basic operations, and specifications of the AQ7280. For correct operation, please read this manual thoroughly before use.
List of Manuals
The AQ7280 comes with the following manuals. Please keep them in a safe place.
Manual Title Manual No. Description
AQ7280 OTDR User’s Manual (included in CD) IM AQ7280-01EN Explains all AQ7280 features, except for the communication
features, and how to use them.
AQ7280 OTDR Getting Started Guide IM AQ7280-02EN This manual.
AQ7280 OTDR Communication Interface
User’s Manual (included in CD)
IM AQ7280-17EN Explains the features related to using communication
commands to control the AQ7280.
Model 739883 Battery Pack Handling Precautions IM 739883-01EN Explains the handlling precautions for the battery pack.
AQ7280 OTDR User’s Manual IM AQ7280-92Z1 A manual for China.
739883 Battery Pack User’s Manual IM 739883-92Z1 A manual for China.
* The “EN” and “Z1” in the manual numbers are the language codes.
Contact information of Yokogawa offices worldwide is provided on the following sheet.
Document No. Description
PIM 113-01Z2 List of worldwide contacts
Notes
• The contents of this manual are subject to change without prior notice as a result of continuing improvements to the instrument’s
performance and functionality. The figures given in this manual may differ from those that actually appear on your screen.
• Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any
questions or find any errors, please contact your nearest YOKOGAWA dealer.
• Copying or reproducing all or any part of the content of this manual without the permission of YOKOGAWA is strictly prohibited.

2IM AQ7280-02EN
Trademarks
• Microsoft, Windows, Windows 7, and Windows 8 are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
• Adobe and Acrobat are trademarks of Adobe Systems Incorporated.
• In this manual, the ® and TM symbols do not accompany their respective registered trademark or trademark names.
• Other company and product names are registered trademarks or trademarks of their respective holders.
Revisions
October 2014 1st Edition
July 2015 2nd Edition
January 2016 3rd Edition
July 2016 4th Edition
October 2017 5th Edition
December 2017 6th Edition

IM AQ7280-02EN 3
Product Registration
Thank you for purchasing YOKOGAWA products.
YOKOGAWA provides registered users with a variety of information and services.
Please allow us to serve you best by completing the product registration form accessible from our
website.
http://tmi.yokogawa.com/

4IM AQ7280-02EN
Checking the Package Contents
After receiving the product and opening the package, check the items described below. If the wrong items have been delivered, if items
are missing, or if there is a problem with the appearance of the items, contact your nearest YOKOGAWA dealer.
Check that the product that you have received is the same product that you ordered. For reference, the model name, suffix code, and
specifications of the products are listed below.
AQ7280 OTDR Mainframe
xxx-xxxx
Model Suffix1Description
AQ7280 OTDR mainframe
Language -HE English (Multi language2)
-HM Chinese
-HC Chinese/English
-HK Korean/English
-HR Russian/English
Options /MNT Monitoring function
/SMP Smart Mapper function
/FST Fiber Surface Test function
/LAN Ethernet
/SB Shoulder belt
1 For products whose suffix code contains “Z,” an exclusive manual may be included. Please read it along with the standard manual.
2 For details on multi language, see the options displayed in the language setup menu.

IM AQ7280-02EN 5
OTDR unit
xxx-xxxx
Model Suffix2Description
AQ7282A 2WL 1310/1550 nm 38/36 dB
AQ7283A 2WL 1310/1550 nm 42/40 dB
AQ7284A 2WL 1310/1550 nm 46/45 dB
AQ7285A 2WL 1310/1550 nm 50/50 dB
AQ7283E 3WL 1310/1550,1625 nm 42/40, 40 dB (1625 nm port is equipped with a built-in filter)
AQ7283F 3WL 1310/1550,1650 nm 42/40, 40 dB (1650 nm port is equipped with a built-in filter)
AQ7282G 3WL 1310/1490/1550 nm 38/36/36 dB
AQ7283H 3WL 1310/1550/1625 nm 42/40/39 dB
AQ7284H 3WL 1310/1550/1625 nm 46/45/44 dB
AQ7283J 4WL 1310/1383/1550/1625 nm 42/39/40/40 dB
AQ7283K 4WL 1310/1490/1550/1625 nm 42/38/40/40 dB
AQ7282M 2WL 850/1300 nm (MM) 25/27 dB
Connector Adapter1-USC Universal adapter (SC)
-UFC Universal adapter (FC)
-ULC Universal adapter (LC)
-ASC ASC connector (SC angled physical contact)3
-NUA No universal adapter
Options /PC Power checker3, 4
/SLS Stabilized light source5
1 The connectors that you select are attached to the OTDR ports prior to shipping.
2 For products whose suffix code contains “Z,” an exclusive manual may be included. Please read it along with the standard manual.
3 Not applicable to AQ7282M.
4 Not applicable to the port 2 of AQ7283E and AQ7283F.
5 Not applicable for 1383 nm of AQ7283J.

6IM AQ7280-02EN
Optical power meter module (OPM module)
xxx-xxxx
Model Suffix2Description
AQ2780 OPM module Power range: –70 dBm to +10 dBm (CW)
AQ2781 High power OPM module Power range: –50 dBm to +27 dBm (CW)
AQ2780V OPM & VLS module Power range: –70 dBm to +10 dBm (CW)
with Visible Light Source (Connector: Ø2.5 Ferrule)
AQ2781V High power OPM & VLS module Power range: –50 dBm to +27 dBm (CW)
with Visible Light Source (Connector: Ø2.5 Ferrule)
Connector Adapter1-SCC Universal adapter (SC)
-FCC Universal adapter (FC)
-LMC Ferrule adapter (Ø1.25)
1 The connectors that you select are attached to the OPM ports prior to shipping.
2 For products whose suffix code contains “Z,” an exclusive manual may be included. Please read it along with the standard manual.

IM AQ7280-02EN 7
AQ4780 Visible light source module
xxx-xxxx
Model Suffix1Description
AQ4780 VLS module Visible Light Source (Connector: Ø2.5 Ferrule)
1 For products whose suffix code contains “Z,” an exclusive manual may be included. Please read it along with the standard manual.
No. (Instrument number)
When contacting the dealer from which you purchased the instrument, please tell them the instrument number.

8IM AQ7280-02EN
Accessories
The instrument is shipped with the following accessories. Make sure that all accessories are present and undamaged.
Battery pack
(lithium-ion)
739883
Shoulder strap (/SB)
B8070CY
1
Manuals
• IM AQ7280-02EN
(this manual)
• IM 739883-01EN
(for battery pack)
• PIM 113-01Z2
(list of worldwide contacts)
• IM AQ7280-92Z1 (for China)
• IM 739883-92Z1 (for China)
Manuals (CD)
B8107VA3
• IM AQ7280-01EN
(User’s manual)
• IM AQ7280-17EN
(for communication
interface)
1 Included with models that have the /SB option installed.
2 If a VLS or optical power meter module has not been ordered along with the OTDR mainframe (AQ7280), the cover is attached to the OTDR
mainframe.
3
You can purchase the printed IM AQ7280-01EN and IM AQ7280-17EN manuals separately. Contact your nearest YOKOGAWA dealer to
purchase a copy.
Hand strap
B8070CX (for optical power meter
module/visible light source
module slot)
B8107DE2
Cover Bracket
Screw (M4 x 5)
Optional Accessories (Sold separately)
The following optional accessories are available for purchase separately. For information about ordering accessories, contact your
nearest YOKOGAWA dealer.
Name Model or Component
Number
Notes Manual No.
Soft carrying case 739860 — —
AC adapter 739873 Except for EU, ferrite core included IM 739873-01EN
739872 For EU, ferrite core included IM 739872-01EN
Battery pack 739883 — IM 739883-01EN
Shoulder strap B8070CY — —
Additional option license for
AQ7280
735050-MNT Monitoring function —
735050-SMP Smart mapper function —
735050-FST Fiber surface test function —

IM AQ7280-02EN 9
Name Model or Component
Number
Notes Manual No.
Universal adapter (SC) SU2005A-SCC for OTDR unit —
Universal adapter (FC ) SU2005A-FCC for OTDR unit —
Universal adapter (LC) SU2005A-LCC for OTDR unit —
Connector adapter (SC) 735480-SCC for OPM module —
Connector adapter (FC) 735480-FCC for OPM module —
Ferrule adapter (Ø1.25) 735481-LMC for OPM module —
Ferrule adapter (Ø2.5) 735481-SFC for OPM module —
Manual CD
WARNING
Never play this manual CD, which contains the user’s manuals, in an audio CD player. Doing so may cause loss of
hearing or speaker damage due to the large sounds that may be produced.
French
AVERTISSEMENT
Ce CD contient les manuels d’utilisation. Ne jamais insérer ce CD dans un lecteur de CD audio.
Cela pourrait entraîner une perte d’audition ou l’endommagement des enceintes en raison du volume potentiellement
élevé des sons produits.
The English folder of manual CD contains PDF files of the following manuals. The PDFs of the Japanese manuals are included in the
manual CD.
File Name Manual Title Manual No.
Features and Operation Manual.pdf AQ7280 OTDR User’s Manual IM AQ7280-01EN
Communication Interface.pdf AQ7280 OTDR Communication Interface User’s Manual IM AQ7280-17EN
To view above manuals you need Adobe Reader 5.0 or later.

10 IM AQ7280-02EN
Safety Precautions
This product is designed to be used by a person with specialized knowledge.
The general safety precautions described herein must be observed during all phases of operation. If the instrument is used in a manner
not specified in this guide, the protection provided by the instrument may be impaired.
This manual is an essential part of the product; keep it in a safe place for future reference. YOKOGAWA assumes no liability for the
customer’s failure to comply with these requirements.
The following symbols are used on this instrument.
Warning: handle with care. Refer to the user’s manual or service manual. This symbol appears on dangerous locations on the
instrument which require special instructions for proper handling or use. The same symbol appears in the corresponding place in
the manual to identify those instructions.
Hazard, radiation of laser apparatus.
Direct current
Stand-by
French
Avertissement : À manipuler délicatement. Toujours se reporter aux manuels d’utilisation et d’entretien. Ce symbole a été apposé
aux endroits dangereux de l’instrument pour lesquels des consignes spéciales d’utilisation ou de manipulation ont été émises.
Le même symbole apparaît à l’endroit correspondant du manuel pour identifier les consignes qui s’y rapportent
Danger : Appareil laser à rayonnement.
Courant direct
Veille

IM AQ7280-02EN 11
Failure to comply with the precautions below could lead to injury or death.
WARNING
Use the Instrument Only for Its Intended Purpose
This optical measuring instrument is designed to measure the optical characteristics of light sources and evaluate their
performance. Do not use this instrument for anything other than as an optical measuring instrument.
Check the Physical Appearance
Do not use the instrument if there is a problem with its physical appearance.
AC Adapter
Do not use the other than AC adapter designed exclusively for the AQ7280.
Battery Pack
Only use the AQ7280 battery pack. Do not use this battery pack with other instruments. Only use the AQ7280 to
charge the battery pack. If the battery pack is still charging after 6 hours, stop charging it immediately. Your clothing
may be damaged or you may be injured if you come in contact with the electrolyte due to fluid leakage or the battery
pack exploding. Because the electrolyte may cause loss of eyesight, if it comes in contact with your eyes, immediately
wash the affected area with clean water, and consult a doctor as soon as possible. When you change the battery
pack, be sure to turn the AQ7280 off, and detach the AC adapter power supply from the AQ7280. Failure to do so may
lead to electric shock or other accidents. Do not throw the battery pack into fire or heat it. Such actions are dangerous
as they may cause the battery pack to explode or the electrolyte to be sprayed about. Follow the additional handling
precautions that are included in the battery pack’s user’s manual.
Laser Beam
Do not look directly or indirectly into the laser beam or at a specular reflection of the beam without protective equipment.
Do not aim the laser beam at the eye. The laser beam may cause blindness or damage to your eyes. Attach the cover
to the optical connector when it is not in use. Turn the power OFF when you are cleaning the AQ7280.
Connecting Optical Fiber Cables
Use optical fiber cable connectors that conform to the included universal adapter (the universal adapter specified by the
suffix code).

12 IM AQ7280-02EN
Apply Correct Signals to the Optical Connectors
Do not apply light that is –5 dBm or greater to the OTDR unit (AQ7282 series) optical connectors (PORT1 and PORT2).
Doing so may damage the OTDR unit.
Do not apply light that is +10 dBm or greater to the OPM module (AQ2780, AQ2780V). Do not apply light that is
+27 dBm or greater to the high power OPM module (AQ2781, AQ2781V). Doing so may damage the OPM module.
Do Not Operate in an Explosive Atmosphere
Do not use the instruments in the presence of flammable gasses or vapors. Doing so is extremely dangerous.
Do Not Remove the Covers or Disassemble or Alter the Instrument
Only qualified YOKOGAWA personnel may remove the covers and disassemble or alter the instrument.
Installation Position
Handling the stand without firmly supporting the instrument can be dangerous. Only handle the stand when the
instrument is on a stable surface.
CAUTION
Operating Environment Limitations
This product is a Class A (for industrial environments) product. Operation of this product in a residential area may cause
radio interference in which case the user will be required to correct the interference.

IM AQ7280-02EN 13
French
AVERTISSEMENT
Utiliser l’instrument aux seules fins prévues
Cet instrument de mesure optique est prévu pour mesurer les caractéristiques optiques des sources lumineuses et
évaluer leur performance. Ne pas utiliser cet instrument à d’autres fins que celles de mesure optique.
Inspecter l’apparence physique
Ne pas utiliser l’instrument si son intégrité physique semble être compromise.
Adaptateur c.a.
Utiliser exclusivement l’adaptateur c.a. prévu pour l’AQ7280.
Pack de batteries
Utiliser exclusivement le pack de batteries de l’AQ7280. Ne pas utiliser ce pack de batteries avec d’autres instruments.
Recharger le pack de batteries à l’aide de l’AQ7280 uniquement. Si le pack de batteries est encore en charge au bout
de 6 heures, interrompre la charge. Tout contact avec l’électrolyte échappé en raison d’une fuite ou d’une explosion du
pack de batteries peut endommager les vêtements ou causer des blessures. L’électrolyte peut entraîner la cécité, par
conséquent, en cas de contact avec les yeux, rincer immédiatement à l’eau et consulter un médecin dans les plus brefs
délais. Lors du remplacement du pack de batteries, toujours mettre l’AQ7280 hors tension et débrancher l’adaptateur c.a.
de l’AQ7280. Le non-respect de cette consigne peut entraîner un choc électrique ou tout autre accident. Tenir le pack
de batteries éloigné de toute source de chaleur et des flammes pour éviter le risque d’explosion du pack de batteries
ou de déversement d’électrolyte. Respecter les consignes de manipulation supplémentaires fournies dans le manuel
d’utilisation du pack de batteries.
Faisceau laser
Ne pas fixer directement ou indirectement le faisceau laser, ni la réflexion spéculaire du faisceau en l’absence
d’équipement de protection. Ne pas orienter le faisceau laser en direction des yeux. Le faisceau laser peut entraîner la
cécité ou causer des lésions oculaires. Recouvrir le connecteur optique à l’aide du cache pendant les périodes de non-
utilisation. Mettre l’AQ7280 HORS tension pendant son nettoyage.

14 IM AQ7280-02EN
Connexion des câbles à fibre optique
Utiliser des connecteurs de câbles à fibre optique conformes à l’adaptateur universel fourni (adaptateur universel
indiqué par le suffixe).
Envoyer les signaux corrects aux connecteurs optiques
Ne pas appliquer de signal de –5 dBm ou plus aux connecteurs optiques de l’unité OTDR (série AQ7282) (PORT1 et
PORT2).
Cela pourrait endommager l’unité OTDR.
Ne pas appliquer de signal de +10 dBm ou plus au module OPM (AQ2780, AQ2780V). Ne pas appliquer de signal de
+27 dBm ou plus au module OPM haute puissance (AQ2781, AQ2781V). Cela pourrait endommager le module OPM.
Ne pas utiliser dans un environnement explosif
Ne pas utiliser l’instrument en présence de gaz ou de vapeurs inflammables. Cela pourrait être extrêmement
dangereux.
Ne pas retirer le capot, ni démonter ou modifier l’instrument
Seul le personnel YOKOGAWA qualifié est habilité à retirer le capot et à démonter ou modifier l’instrument. Certains
composants à l’intérieur de l’instrument sont à haute tension et par conséquent, représentent un danger.
Position d’installation
Lorsque vous manipulez les pieds ou le support escamotable, soutenez toujours l’instrument fermement. Prendre les
précautions suivantes.
ATTENTION
Limitations relatives à l’environnement opérationnel
Ce produit est un produit de classe A (pour environnements industriels). L’utilisation de ce produit dans un zone
résidentielle peut entraîner une interférence radio que l’utilisateur sera tenu de rectifier.

IM AQ7280-02EN 15
Safety Precautions for Laser Products
This instrument uses a laser light source. This instrument is a Class 1M and Class 3R laser product as defined by IEC/EN60825-1:2007
Safety of Laser Products—Part1: Equipment classification and requirements. In addition, this instrument complies with 21 CFR 1040.10
except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007.
Laser Class 3R Label
Avoid direct eye exposure.
Mainframe

16 IM AQ7280-02EN
OTDR unit (AQ7284A, AQ7285A, AQ7284H, AQ7283J, AQ7283K)
Laser Class 1M Label
Using an optical instrument, such as a
loupe, magnifying glass, or microscope,
when observing the laser beam from
a distance of less than 100 mm may
cause eye injury.
Laser Class 3R Label
Avoid direct eye exposure.

IM AQ7280-02EN 17
OTDR unit (AQ7282A, AQ7283A, AQ7283E, AQ7283F, AQ7282G, AQ7283H)
Laser Class 1M Label
Using an optical instrument, such as a
loupe, magnifying glass, or microscope,
when observing the laser beam from
a distance of less than 100 mm may
cause eye injury.

18 IM AQ7280-02EN
OTDR unit (AQ7282M)
Laser Class 1M Label
Using an optical instrument, such as a
loupe, magnifying glass, or microscope,
when observing the laser beam from
a distance of less than 100 mm may
cause eye injury.
Laser Class 3R Label
Avoid direct eye exposure.

IM AQ7280-02EN 19
OPM module (AQ2780V, AQ2781V)
VLS module (AQ4780)
Laser Class 3R Label
Avoid direct eye exposure.
Laser Class 3R Label
Avoid direct eye exposure.