EXFO IQS-3150 Manuel utilisateur
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SM
View
Instra
User Guide
Variable Attenuator for IQS Platforms
IQS-3150
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ii IQS-3150
Copyright © 2006–2015 EXFO Inc. All rights reserved. No part of this
publication may be reproduced, stored in a retrieval system or transmitted
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permission of EXFO Inc. (EXFO).
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However, no responsibility is assumed by EXFO for its use nor for any
infringements of patents or other rights of third parties that may result from
its use. No license is granted by implication or otherwise under any patent
rights of EXFO.
EXFO’s Commerce And Government Entities (CAGE) code under the North
Atlantic Treaty Organization (NATO) is 0L8C3.
The information contained in this publication is subject to change without
notice.
Trademarks
EXFO’s trademarks have been identified as such. However, the presence
or absence of such identification does not affect the legal status of any
trademark.
Units of Measurement
Units of measurement in this publication conform to SI standards and
practices.
Patents
EXFO’s Universal Interface is protected by US patent 6,612,750.
Version number: 3.0.0.1
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Contents
Variable Attenuator iii
Contents
Certification Information ........................................................................................................v
1 Introducing the IQS-3150 Variable Attenuator ........................................... 1
Models and Options ...............................................................................................................1
Typical Applications ................................................................................................................3
Main Software Features ..........................................................................................................4
Conventions ............................................................................................................................8
Safety Information ..................................................................................................................9
2 Getting Started with Your Variable Attenuator ....................................... 11
Inserting and Removing Test Modules ..................................................................................11
Starting the Variable Attenuator Application ........................................................................16
Entering Values Using Sliders and Numeric Boxes .................................................................20
Exiting the Application .........................................................................................................21
3 Setting Up Your Variable Attenuator ........................................................ 23
Basic Settings ........................................................................................................................23
Control Center Settings and Controls ...................................................................................31
Creating a Test Sequence ......................................................................................................37
Managing Sequence Files .....................................................................................................44
Saving and Recalling Configurations .....................................................................................46
4 Operating the IQS-3150 ............................................................................. 49
Cleaning and Connecting Optical Fibers ...............................................................................49
Installing the EXFO Universal Interface (EUI) .........................................................................51
Nulling Electrical Offsets .......................................................................................................52
Running an Attenuation Sequence .......................................................................................54
Using the Power Tracking Function (Self-Adjusting Modules) ...............................................56
Using the Shutter ..................................................................................................................57
5 Controlling Multiple Variable Attenuators ............................................... 59
Starting a Multimodule Application ......................................................................................59
Selecting Modules to Control ...............................................................................................60
Controlling a Single IQS-3150 Variable Attenuator ...............................................................61
Navigating and Closing Multiple Module Windows ..............................................................62
6 Monitoring Variable Attenuator Modules ................................................ 63
Using Monitor Windows .......................................................................................................63
Using QuickTools ...................................................................................................................66
7 Measuring Multimode Insertion Loss ....................................................... 69
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Contents
iv IQS-3150
8 Maintenance ................................................................................................71
Cleaning Fixed Connectors ....................................................................................................72
Cleaning EUI Connectors ......................................................................................................74
Cleaning Detector Ports ........................................................................................................76
Homing the Variable Attenuator (User Calibration) ..............................................................77
Recalibrating the Unit ...........................................................................................................78
Recycling and Disposal (Applies to European Union Only) ....................................................79
9 Troubleshooting ..........................................................................................81
Viewing Online Documentation ............................................................................................81
Contacting the Technical Support Group ..............................................................................82
Transportation ......................................................................................................................84
10 Warranty ......................................................................................................85
General Information .............................................................................................................85
Liability .................................................................................................................................85
Exclusions .............................................................................................................................86
Certification ..........................................................................................................................86
Service and Repairs ...............................................................................................................87
EXFO Service Centers Worldwide ..........................................................................................88
A Technical Specifications ..............................................................................89
B SCPI Command Reference ..........................................................................91
Quick Reference Command Tree ...........................................................................................92
Product-Specific Commands—Description ............................................................................94
Index ...............................................................................................................155
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Certification Information
Variable Attenuator v
Certification Information
North America Regulatory Statement
This unit was certified by an agency approved in both Canada and the
United States of America. It has been evaluated according to applicable
North American approved standards for product safety for use in Canada
and the United States.
Electronic test and measurement equipment is exempt from FCC part 15,
subpart B compliance in the United States of America and from ICES-003
compliance in Canada. However, EXFO Inc. makes reasonable efforts to
ensure compliance to the applicable standards.
The limits set by these standards 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 user guide, 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.
Modifications not expressly approved by the manufacturer could void the
user's authority to operate the equipment.
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Variable Attenuator 1
1 Introducing the IQS-3150
Variable Attenuator
The IQS-3150 is a versatile variable attenuator. It can be used as a regular
attenuator or it can be equipped with an integrated power meter, which
allows you to work not only in attenuation but also in power level
requirements. The following is a description of the IQS-3150 features and
its typical applications.
Models and Options
The IQS-3150 module is a high-performance attenuator, part of the IQS
product line.
The module is configured for singlemode or multimode fibers and
complies with optical return loss measurement (ORL) standards on
transmission equipment.
Variable
IQS-3150
Attenuator
Input port
Retaining screw knob
Green LED push button
to start the IQS-3150
software
Output port
Red LED push button to close and
lock, or to open the shutter. When
lit, the shutter is closed.
Shutter
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Introducing the IQS-3150 Variable Attenuator
2IQS-3150
Models and Options
The IQS-3150 Variable Attenuator is available in four models:
Standard singlemode
Standard multimode
Self-adjusting singlemode (added Output Power control mode)
Self-adjusting multimode (added Output Power control mode)
The self-adjusting modules offer two operation modes: Attenuation
and Power Output. The Attenuation mode allows you to work with a
wide range of attenuation levels. The Output Power mode allows you
to request a fixed output power value and the module automatically
adjusts the attenuation according to that value.
Compatibility with various fiber cores is an option that you can add to your
IQS-3150.
Local and Remote Control
The IQS-3150 Variable Attenuator supports local control (via the
IQS Manager software) and remote control (through GPIB, RS-232, or
Ethernet TCP/IP using SCPI commands or the provided LabVIEW drivers).
For more information, refer to the IQS platform user guide.
Note: With IQS-3100 modules, you can use the LabVIEW drivers created for the
IQS-3150 module. However, the documentation and especially the
examples provided with the drivers are focused on the new functionalities
of the IQS-3150.
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Introducing the IQS-3150 Variable Attenuator
Variable Attenuator 3
Typical Applications
Typical Applications
The IQS-3150 Variable Attenuator can be used in a number of test
situations. It is ideal for manufacturing and laboratory applications:
Erbium-doped-fiber amplifier (EDFA) and system characterization
Component and system loss simulation
Optical margin analysis
Instrument calibration
Power meter linearity measurement
Spectral tuning.
The IQS-3150 is perfectly suited for WDM applications by providing the
same attenuation level on all channels simultaneously for a complete
characterization of amplifiers or subsystems.
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