Exfo IQS-3150 Variable Attenuator for IQS-500/600 User Manual

User GuideVariable Attenuator for IQS PlatformsIQS-3150

Introducing the IQS-3150 Variable Attenuator4 IQS-3150Main Software FeaturesMain Software FeaturesThe dedicated software functions are very similar wh

SCPI Command Reference94 IQS-3150Product-Specific Commands—Description:INPut[1..n]:ATTenuationDescription This command sets the absolute attenuation t

SCPI Command ReferenceVariable Attenuator 95Product-Specific Commands—DescriptionDEFault allows the instrument to select a value for the <Attenuati

SCPI Command Reference96 IQS-3150Product-Specific Commands—Description:INPut[1..n]:ATTenuation?Description This query returns a value indicating eithe

SCPI Command ReferenceVariable Attenuator 97Product-Specific Commands—DescriptionResponse(s) Attenuation: The response data syntax for <Attenuation

SCPI Command Reference98 IQS-3150Product-Specific Commands—Description:INPut[1..n]:OFFSetDescription This command sets an offset value for the attenua

SCPI Command ReferenceVariable Attenuator 99Product-Specific Commands—DescriptionExample(s) INP:WAV 1310 NMCONT:MODE ATTOUTP:APM ABSINP:OFFS DEFINP:AT

SCPI Command Reference100 IQS-3150Product-Specific Commands—Description:INPut[1..n]:OFFSet?Description This query returns a value indicating either th

SCPI Command ReferenceVariable Attenuator 101Product-Specific Commands—DescriptionResponse(s) Offset: The response data syntax for <Offset> is d

SCPI Command Reference102 IQS-3150Product-Specific Commands—Description:INPut[1..n]:RATTenuationDescription This command sets the relative attenuation

SCPI Command ReferenceVariable Attenuator 103Product-Specific Commands—DescriptionDEFault allows the instrument to select a value for the <Relative

Introducing the IQS-3150 Variable AttenuatorVariable Attenuator 5Main Software FeaturesControl Modes (Self-Adjusting Modules)With the self-adjusting m

SCPI Command Reference104 IQS-3150Product-Specific Commands—DescriptionSTAT:OPER:BIT8:COND? Keep sending the query as long as attenuation is not reach

SCPI Command ReferenceVariable Attenuator 105Product-Specific Commands—Description:INPut[1..n]:RATTenuation?Description This query returns either the

SCPI Command Reference106 IQS-3150Product-Specific Commands—DescriptionThe <RelativeAttenuation> response represents either the current or the M

SCPI Command ReferenceVariable Attenuator 107Product-Specific Commands—Description:INPut[1..n]:REFerenceDescription This command sets, for the current

SCPI Command Reference108 IQS-3150Product-Specific Commands—DescriptionExample(s) INP:WAV 1310 NMCONT:MODE ATTOUTP:APM ABSINP:OFFS 0.000 DBINP:RATT 33

SCPI Command ReferenceVariable Attenuator 109Product-Specific Commands—Description:INPut[1..n]:REFerence?Description This query returns either the cur

SCPI Command Reference110 IQS-3150Product-Specific Commands—DescriptionResponse(s) Reference: The response data syntax for <Reference> is define

SCPI Command ReferenceVariable Attenuator 111Product-Specific Commands—Description:INPut[1..n]:WAVelengthDescription This command selects a specific w

SCPI Command Reference112 IQS-3150Product-Specific Commands—DescriptionDEFault allows the instrument to select a value for the <Wavelength> para

SCPI Command ReferenceVariable Attenuator 113Product-Specific Commands—Description:INPut[1..n]:WAVelength?Description This query returns a value indic

Introducing the IQS-3150 Variable Attenuator6 IQS-3150Main Software FeaturesDisplay ModesBoth standard and self-adjusting modules give you a choice of

SCPI Command Reference114 IQS-3150Product-Specific Commands—DescriptionResponse(s) Wavelength: The response data syntax for <Wavelength> is defi

SCPI Command ReferenceVariable Attenuator 115Product-Specific Commands—Description:OUTPut[1..n]:ALC[:STATe]Description This command activates or deact

SCPI Command Reference116 IQS-3150Product-Specific Commands—Description:OUTPut[1..n]:ALC[:STATe]?Description This query indicates if the power trackin

SCPI Command ReferenceVariable Attenuator 117Product-Specific Commands—Description:OUTPut[1..n]:APModeDescription This command selects, for the active

SCPI Command Reference118 IQS-3150Product-Specific Commands—DescriptionExample(s) INP:WAV 1310 NMCONT:MODE ATTOUTP:APM ABSINP:RATT 42.75INP:RATT? Ret

SCPI Command ReferenceVariable Attenuator 119Product-Specific Commands—Description:OUTPut[1..n]:APMode?Description This query returns, for active cont

SCPI Command Reference120 IQS-3150Product-Specific Commands—Description:OUTPut[1..n]:DTOleranceDescription This command specifies the drift tolerance

SCPI Command ReferenceVariable Attenuator 121Product-Specific Commands—DescriptionDEFault allows the instrument to select a value for the <Drift>

SCPI Command Reference122 IQS-3150Product-Specific Commands—Description:OUTPut[1..n]:DTOlerance?Description This query returns the drift tolerance tha

SCPI Command ReferenceVariable Attenuator 123Product-Specific Commands—DescriptionResponse(s) Drift: The response data syntax for <Drift> is def

Introducing the IQS-3150 Variable AttenuatorVariable Attenuator 7Main Software FeaturesOutput powerMultiple Module ControlThe multimodule application

SCPI Command Reference124 IQS-3150Product-Specific Commands—Description:OUTPut[1..n]:LOCK[:STATe]?Description This query returns the lock state of the

SCPI Command ReferenceVariable Attenuator 125Product-Specific Commands—Description:OUTPut[1..n]:OFFSetDescription This command sets a power offset val

SCPI Command Reference126 IQS-3150Product-Specific Commands—DescriptionDEFault allows the instrument to select a value for the <Offset> paramete

SCPI Command ReferenceVariable Attenuator 127Product-Specific Commands—Description:OUTPut[1..n]:OFFSet?Description This query returns a value indicati

SCPI Command Reference128 IQS-3150Product-Specific Commands—DescriptionResponse(s) Offset: The response data syntax for <Offset> is defined as a

SCPI Command ReferenceVariable Attenuator 129Product-Specific Commands—Description:OUTPut[1..n]:POWerDescription This command sets the absolute output

SCPI Command Reference130 IQS-3150Product-Specific Commands—DescriptionExample(s) INP:WAV 1310 NMCONT:MODE POWOUTP:POW -15.000 DBMSTAT:OPER:BIT8:COND

SCPI Command ReferenceVariable Attenuator 131Product-Specific Commands—Description:OUTPut[1..n]:POWer?Description This query returns a value indicatin

SCPI Command Reference132 IQS-3150Product-Specific Commands—DescriptionResponse(s) Power: The response data syntax for <Power> is defined as a &

SCPI Command ReferenceVariable Attenuator 133Product-Specific Commands—Description:OUTPut[1..n]:REFerenceDescription This command sets a power referen

Introducing the IQS-3150 Variable Attenuator8 IQS-3150ConventionsConventionsBefore using the product described in this manual, you should understand t

SCPI Command Reference134 IQS-3150Product-Specific Commands—DescriptionDEFault allows the instrument to select a value for the <Reference> param

SCPI Command ReferenceVariable Attenuator 135Product-Specific Commands—Description:OUTPut[1..n]:REFerence?Description This query returns either the cu

SCPI Command Reference136 IQS-3150Product-Specific Commands—DescriptionResponse(s) Reference: The response data syntax for <Reference> is define

SCPI Command ReferenceVariable Attenuator 137Product-Specific Commands—Description:OUTPut[1..n]:RPOWerDescription This command sets the relative power

SCPI Command Reference138 IQS-3150Product-Specific Commands—Descriptiona) In ABSolute mode, <RelativePower> = absolute power + power offset valu

SCPI Command ReferenceVariable Attenuator 139Product-Specific Commands—Description:OUTPut[1..n]:RPOWer?Description This query returns a value indicati

SCPI Command Reference140 IQS-3150Product-Specific Commands—Descriptiona) In ABSOLUTE mode, <RelativePower> = absolute power + power offset valu

SCPI Command ReferenceVariable Attenuator 141Product-Specific Commands—Description:OUTPut[1..n][:STATe]Description This command controls the state of

SCPI Command Reference142 IQS-3150Product-Specific Commands—Description:OUTPut[1..n][:STATe]?Description This query returns the state of the instrumen

SCPI Command ReferenceVariable Attenuator 143Product-Specific Commands—Description:READ[1..n][:SCALar]:POWer:DC?Description This query returns the pow

Introducing the IQS-3150 Variable AttenuatorVariable Attenuator 9Laser Safety InformationLaser Safety InformationYour IQS-3150 Variable Attenuator doe

SCPI Command Reference144 IQS-3150Product-Specific Commands—Description:SENSe[1..n]:CORRection:COLLect:ZERODescription This command performs an offset

SCPI Command ReferenceVariable Attenuator 145Product-Specific Commands—Description:SNUMber?Description This query returns a value indicating the instr

SCPI Command Reference146 IQS-3150Product-Specific Commands—Description:STATus?Description This query returns a value indicating the status of the att

SCPI Command ReferenceVariable Attenuator 147Product-Specific Commands—Description:STATus:OPERation:BIT<n>:CONDition?Description This query retu

SCPI Command Reference148 IQS-3150Product-Specific Commands—DescriptionBit <9>: When the returned value is 1, the instrument’s mechanism is bein

SCPI Command ReferenceVariable Attenuator 149Product-Specific Commands—Description:STATus:QUEStionable:BIT<n>:CONDition?Description This query r

SCPI Command Reference150 IQS-3150Product-Specific Commands—DescriptionBit <10>: When the returned value is 1, the operation temperature is outs

IndexVariable Attenuator 151IndexAAbout function tab ... 79Absolutedisplay mode ...

Index152 IQS-3150display modeAbsolute ... 6Reference... 6

IndexVariable Attenuator 153modulefront panel description ... 1insertion ... 11m

Index154 IQS-3150saving a sequence file ... 43saving configuration ... 44sequenceadding

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Variable Attenuator 112 Getting Started with Your Variable AttenuatorInserting and Removing Test ModulesTo insert a module into the controller or expa

Getting Started with Your Variable Attenuator12 IQS-3150Inserting and Removing Test Modules4. Insert the protruding edges of the module into the groov

Getting Started with Your Variable AttenuatorVariable Attenuator 13Inserting and Removing Test ModulesThe module is correctly inserted when its front

ii IQS-3150Copyright © 2006–2008 EXFO Electro-Optical Engineering Inc. All rights reserved. No part of this publication may be reproduced, stored in a

Getting Started with Your Variable Attenuator14 IQS-3150Inserting and Removing Test Modules3. Cover empty slots with the supplied protective covers.3a

Getting Started with Your Variable AttenuatorVariable Attenuator 15Starting the Variable Attenuator ApplicationStarting the Variable Attenuator Applic

Getting Started with Your Variable Attenuator16 IQS-3150Starting the Variable Attenuator Application2. Click Start Application.ORPress the green LED p

Getting Started with Your Variable AttenuatorVariable Attenuator 17Starting the Variable Attenuator ApplicationData DisplaySome elements of the data d

Getting Started with Your Variable Attenuator18 IQS-3150Starting the Variable Attenuator ApplicationTitle BarThe title bar is located at the top of th

Getting Started with Your Variable AttenuatorVariable Attenuator 19Entering Values Using Sliders and Numeric BoxesEntering Values Using Sliders and Nu

Getting Started with Your Variable Attenuator20 IQS-3150Exiting the ApplicationExiting the ApplicationClosing any application that is not currently be

Variable Attenuator 213 Setting Up Your Variable AttenuatorThe IQS-3150 comes with factory default settings; however, you can create custom settings a

Setting Up Your Variable Attenuator22 IQS-3150Basic SettingsCustomizing the Wavelength and Fine-Tuning Step ListsYou can define lists of wavelengths a

Setting Up Your Variable AttenuatorVariable Attenuator 23Basic SettingsSetting the B ValueThe B value settings are necessary for the X+B display mode.

ContentsVariable Attenuator iiiContentsCertification Information ...

Setting Up Your Variable Attenuator24 IQS-3150Basic SettingsTo set a correction factor for a wavelength:1. On the Settings function tab, click the Pre

Setting Up Your Variable AttenuatorVariable Attenuator 25Basic Settings3. According to the control mode used, select the correction factor as follows:

Setting Up Your Variable Attenuator26 IQS-3150Basic SettingsInput PowerThe Input Power setting, only available in the Attenuation control mode, allows

Setting Up Your Variable AttenuatorVariable Attenuator 27Basic SettingsSetting the Drift ToleranceThe drift tolerance setting is only available for th

Setting Up Your Variable Attenuator28 IQS-3150Basic SettingsTo set the drift tolerance:1. On the Settings function tab, click the Presets tab.2. Under

Setting Up Your Variable AttenuatorVariable Attenuator 29Control Center Settings and ControlsControl Center Settings and ControlsOnce the basic settin

Setting Up Your Variable Attenuator30 IQS-3150Control Center Settings and ControlsSelecting a Display ModeThe active display mode determines the signi

Setting Up Your Variable AttenuatorVariable Attenuator 31Control Center Settings and ControlsTo select a display mode:1. Click the Instrument function

Setting Up Your Variable Attenuator32 IQS-3150Control Center Settings and ControlsSelecting a Wavelength and a Fine-Tuning StepThe attenuator waveleng

Setting Up Your Variable AttenuatorVariable Attenuator 33Control Center Settings and ControlsChanging the Attenuation or the Output PowerYou can chang

Contentsiv IQS-31508 Maintenance ...67Cleaning Fixed Conn

Setting Up Your Variable Attenuator34 IQS-3150Control Center Settings and ControlsDefining an Offset ValueThe offset value is not applied to a particu

Setting Up Your Variable AttenuatorVariable Attenuator 35Creating a Test SequenceCreating a Test SequenceThe IQS-3150 allows you to create test sequen

Setting Up Your Variable Attenuator36 IQS-3150Creating a Test SequenceAdding, Inserting, and Removing StepsYou can customize test sequences:³ by addin

Setting Up Your Variable AttenuatorVariable Attenuator 37Creating a Test Sequence3. In the Attenuation or the Output Power box (depending on the selec

Setting Up Your Variable Attenuator38 IQS-3150Creating a Test SequenceSetting a Starting TimeThe start of a test sequence can be set to a definite tim

Setting Up Your Variable AttenuatorVariable Attenuator 39Creating a Test Sequence3. Under Starting Time, click the Relative or the Absolute button.4.

Setting Up Your Variable Attenuator40 IQS-3150Creating a Test SequenceSetting Repetition SchemeThe test sequence can be set to repeat itself for a cer

Setting Up Your Variable AttenuatorVariable Attenuator 41Creating a Test Sequence2. Under Sequence File, open a test sequence.ORCreate a sequence (ref

Setting Up Your Variable Attenuator42 IQS-3150Managing Sequence FilesManaging Sequence FilesThe commands to open new or existing sequence files and to

Setting Up Your Variable AttenuatorVariable Attenuator 43Managing Sequence Files³ Clicking the Open button opens the Open Sequence File dialog box fro

Certification InformationVariable Attenuator vCertification InformationF.C.C. InformationElectronic test equipment is exempt from Part 15 compliance (

Setting Up Your Variable Attenuator44 IQS-3150Saving and Recalling ConfigurationsSaving and Recalling ConfigurationsOnce you have set the IQS-3150 Var

Setting Up Your Variable AttenuatorVariable Attenuator 45Saving and Recalling ConfigurationsTo recall a configuration:1. Select the Configuration func

Variable Attenuator 474 Operating the IQS-3150This section presents basic operations using the Variable Attenuator.Cleaning and Connecting Optical Fib

Operating the IQS-315048 IQS-3150Installing the EXFO Universal Interface (EUI)Installing the EXFO Universal Interface (EUI)The EUI fixed baseplate is

Operating the IQS-3150Variable Attenuator 49Nulling Electrical OffsetsThe nulling function is only available for the self-adjusting modules.To perform

Operating the IQS-315050 IQS-3150Running an Attenuation SequenceRunning an Attenuation SequenceAttenuation sequences allow you to automate and ease yo

Operating the IQS-3150Variable Attenuator 51Running an Attenuation SequenceYou can interrupt a sequence at any time by clicking Pause; click Resume wh

Operating the IQS-315052 IQS-3150Using the Power Tracking Function (Self-Adjusting Modules)Using the Power Tracking Function (Self-Adjusting Modules)T

Operating the IQS-3150Variable Attenuator 53Using the ShutterUsing the ShutterThe shutter is used to let light through the input or block it.To use th

Certification Informationvi IQS-3150 Application of Council Directive(s): 73/23/EEC - The Low Voltage Directive 89/33

Operating the IQS-315054 IQS-3150Using the ShutterShutter StatusThe status of the shutter is shown on the left of the data display.It is also shown on

Variable Attenuator 555 Controlling Multiple Variable AttenuatorsWith your platform, you can set common parameters and simultaneously operate several

Controlling Multiple Variable Attenuators56 IQS-3150Selecting Modules to ControlSelecting Modules to ControlBefore you can modify the module parameter

Controlling Multiple Variable AttenuatorsVariable Attenuator 57Controlling a Single IQS-3150 Variable AttenuatorOn the Instruments function tab, you c

Controlling Multiple Variable Attenuators58 IQS-3150Navigating and Closing Multiple Module WindowsNavigating and Closing Multiple Module WindowsWhen c

Variable Attenuator 596 Monitoring Variable Attenuator ModulesWhen using your IQS-3150 Variable Attenuator module, either alone or with other modules

Monitoring Variable Attenuator Modules60 IQS-3150Using Monitor WindowsTo select modules and display their monitor windows:1. On the Current Modules fu

Monitoring Variable Attenuator ModulesVariable Attenuator 61Using Monitor Windows3. Click Start Monitor to apply your selection.IQS Manager will displ

Monitoring Variable Attenuator Modules62 IQS-3150Using QuickToolsUsing QuickToolsWith QuickTools, you can fine-tune your module directly, while keepin

Monitoring Variable Attenuator ModulesVariable Attenuator 63Using QuickToolsTo c los e Q ui c kTo ol s:³ Click the Close button located at the top of

Variable Attenuator 11 Introducing the IQS-3150 Variable AttenuatorThe IQS-3150 is a versatile variable attenuator. It can be used as a regular attenu

Variable Attenuator 657 Measuring Multimode Insertion LossOften, when using a multimode source (mostly LED sources), part of the optical energy is tra

Measuring Multimode Insertion Loss66 IQS-3150There are several methods of eliminating these cladding modes:³ A cladding mode stripper (preferred metho

Variable Attenuator 678 MaintenanceTo help ensure long, trouble-free operation:³ Always clean fiber-optic connectors before using them.³ Keep the unit

Maintenance68 IQS-3150Cleaning Fixed ConnectorsCleaning Fixed ConnectorsRegular cleaning of connectors will help maintain optimum performance. Do not

MaintenanceVariable Attenuator 69Cleaning Fixed Connectors6. Moisten a cleaning tip (2.5 mm tip) with only one drop of isopropyl alcohol.7. Slowly ins

Maintenance70 IQS-3150Cleaning EUI ConnectorsCleaning EUI ConnectorsRegular cleaning of EUI connectors will help maintain optimum performance. There i

MaintenanceVariable Attenuator 71Cleaning EUI Connectors5. Repeat steps 3 to 4 with a dry cleaning tip.Note: Make sure you don’t touch the soft end of

Maintenance72 IQS-3150Cleaning Detector PortsCleaning Detector PortsRegular cleaning of detectors will help maintain measurement accuracy.To clean det

MaintenanceVariable Attenuator 73Homing the Variable Attenuator (User Calibration)Homing the Variable Attenuator (User Calibration)The variable attenu

Introducing the IQS-3150 Variable Attenuator2 IQS-3150Models and OptionsThe IQS-3150 Variable Attenuator is available in four models:³ Standard single

Maintenance74 IQS-3150Recalibrating the UnitRecalibrating the UnitManufacturing and service center calibrations are based on the ISO/IEC 17025 Standar

MaintenanceVariable Attenuator 75Recycling and Disposal (Applies to European Union Only)Recycling and Disposal (Applies to European Union Only)³ Unles

Variable Attenuator 779 TroubleshootingViewing Online DocumentationAn online version of the IQS-3150 Variable Attenuator user guide is conveniently av

Troubleshooting78 IQS-3150Contacting the Technical Support GroupContacting the Technical Support GroupTo obtain after-sales service or technical suppo

TroubleshootingVariable Attenuator 79Contacting the Technical Support GroupYou may also be requested to provide software and module version numbers. T

Troubleshooting80 IQS-3150TransportationTransportationMaintain a temperature range within specifications when transporting the unit. Transportation da

Variable Attenuator 8110 WarrantyGeneral InformationEXFO Electro-Optical Engineering Inc. (EXFO) warrants this equipment against defects in material a

Warranty82 IQS-3150ExclusionsExclusionsEXFO reserves the right to make changes in the design or construction of any of its products at any time withou

WarrantyVariable Attenuator 83Service and RepairsService and RepairsEXFO commits to providing product service and repair for five years following the

Introducing the IQS-3150 Variable AttenuatorVariable Attenuator 3Typical ApplicationsTypical ApplicationsThe IQS-3150 Variable Attenuator can be used

Warranty84 IQS-3150EXFO Service Centers WorldwideEXFO Service Centers WorldwideIf your product requires servicing, contact your nearest authorized ser

Variable Attenuator 85A Technical SpecificationsIMPORTANTThe following technical specifications can change without notice. The information presented i

Technical Specifications86 IQS-3150GENERAL SPECIFICATIONSSize (H X W X D) 125 mm X 36 mm X 282 mm (4 15/16in X 1 7/16in X 11 1/8in)Weight 0.7 kg (1.6

Variable Attenuator 87B SCPI Command ReferenceThis appendix presents detailed information on the commands and queries supplied with your IQS-3150 Vari

SCPI Command Reference88 IQS-3150Quick Reference Command TreeQuick Reference Command TreeCommand Parameter(s) P.CALibration[1..n]ZERO 90CONTrol[1..n]

SCPI Command ReferenceVariable Attenuator 89Quick Reference Command TreeREFerence <Reference[<wsp>DBM]>|MAXimum|MINimum|DEFault133REFerenc

SCPI Command Reference90 IQS-3150Product-Specific Commands—DescriptionProduct-Specific Commands—Description:CALibration[1..n]:ZERODescription Returns

SCPI Command ReferenceVariable Attenuator 91Product-Specific Commands—Description:CONTrol[1..n]:MODEDescription This command selects the attenuator&ap

SCPI Command Reference92 IQS-3150Product-Specific Commands—Description:CONTrol[1..n]:MODE?Description This query returns the attenuator's control

SCPI Command ReferenceVariable Attenuator 93Product-Specific Commands—Description:INPut[1..n]:ARESolution?Description This query returns the smallest