Exfo FVA-3150 Variable Attenuator Manuale Utente

User GuideVariable AttenuatorFVA-3150

Introducing the FVA-3150 Variable Attenuator4 FVA-3150Available ModelsAvailable ModelsAccording to the models you own, additional options are availabl

Remote Control Commands94 FVA-3150Specific commands-Quick Reference Command TreeINPut:WAVElengthDescription This command selects a specific calibrated

Remote Control CommandsVariable Attenuator 95Specific commands-Quick Reference Command TreeOUTPut:APModeDescription This command selects Absolute or R

Remote Control Commands96 FVA-3150Specific commands-Quick Reference Command TreeOUTPut[:STATe]Description This command controls the shutter, which can

Remote Control CommandsVariable Attenuator 97Specific commands-Quick Reference Command TreePROGram:SELected:ATTenuationDescription This command change

Remote Control Commands98 FVA-3150Specific commands-Quick Reference Command TreePROGram:SELected:DURAtionDescription This command changes the duration

Remote Control CommandsVariable Attenuator 99Specific commands-Quick Reference Command TreePROGram:SELected:STATe?Description This query returns a val

Remote Control Commands100 FVA-3150Specific commands-Quick Reference Command TreeWaVeLengthDescription This command selects a specific calibrated wave

Remote Control CommandsVariable Attenuator 101Specific commands-Quick Reference Command TreeSYSTem:ERRor?Description This command returns the next err

IndexVariable Attenuator 103IndexAAC requirements ... 10after-sales service ...

Introducing the FVA-3150 Variable AttenuatorVariable Attenuator 5Main ConceptMain ConceptThe significance of the attenuation value displayed by an opt

Index104 FVA-3150DTE pinout configuration... 54duration of the attenuation routine ... 38Eenteringa different step s

IndexVariable Attenuator 105Ppinout configuration ... 54portinput...

Index106 FVA-3150Ttechnical specifications ... 69technical support ... 61temperature

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Introducing the FVA-3150 Variable Attenuator6 FVA-3150ConventionsConventionsBefore using the product described in this manual, you should understand t

Variable Attenuator 72 Safety InformationLaser Safety InformationWARNINGDo not install or terminate fibers while a light source is active. Never look

Safety Information8 FVA-3150Electrical Safety InformationElectrical Safety InformationThis unit uses an international safety standard three-wire power

Safety InformationVariable Attenuator 9Electrical Safety InformationWARNING Use this unit indoors only. Position the unit so that the air can circul

Safety Information10 FVA-3150Electrical Safety InformationThe following label is located on the back panel of the unit:Equipment RatingsTemperature O

Variable Attenuator 113 Getting Started With Your Variable AttenuatorInstalling your FVA-3150 Variable Attenuator in a RackmountYou can place your FVA

Getting Started With Your Variable Attenuator12 FVA-3150Installing your FVA-3150 Variable Attenuator in a RackmountTo install your FVA-3150 Variable A

Getting Started With Your Variable AttenuatorVariable Attenuator 13Turning the Variable Attenuator On and OffTurning the Variable Attenuator On and Of

ii FVA-3150Copyright © 2010–2011 EXFO Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmi

Getting Started With Your Variable Attenuator14 FVA-3150Accessing MenusTo turn the unit on and off: Use the red button in the lower left corner of the

Variable Attenuator 154 Setting Up Your Variable AttenuatorSelecting the Display IntensityDisplay intensity may be set to high or low. You can also tu

Setting Up Your Variable Attenuator16 FVA-3150Locking Control Key AccessLocking Control Key AccessTo prevent unintended use of the FVA-3150 Variable A

Setting Up Your Variable AttenuatorVariable Attenuator 17Managing the Wavelength ShortlistManaging the Wavelength ShortlistThe FVA-3150 Variable Atten

Setting Up Your Variable Attenuator18 FVA-3150Managing the Wavelength ShortlistTo add a wavelength to the shortlist:1. Press the Setup button.2. Use t

Setting Up Your Variable AttenuatorVariable Attenuator 19Managing the Wavelength ShortlistTo delete a wavelength from the shortlist:1. Press the Setup

Setting Up Your Variable Attenuator20 FVA-3150Selecting the AttenuationSelecting the AttenuationThe attenuation can be set using two methods: By usin

Setting Up Your Variable AttenuatorVariable Attenuator 21Selecting the AttenuationTo enter a specific attenuation value:1. Press the Attenuation butto

Setting Up Your Variable Attenuator22 FVA-3150Selecting the AttenuationTo set the minimum attenuation:1. Select a wavelength, by pressing  until you

Setting Up Your Variable AttenuatorVariable Attenuator 23Selecting the AttenuationTo set the maximum attenuation:1. Select a wavelength by pressing 

ContentsVariable Attenuator iiiContentsCertification Information ...

Setting Up Your Variable Attenuator24 FVA-3150Selecting and Using an Attenuation Display ModeSelecting and Using an Attenuation Display ModeNote: The

Setting Up Your Variable AttenuatorVariable Attenuator 25Selecting and Using an Attenuation Display ModeNote: The active display mode is always indica

Setting Up Your Variable Attenuator26 FVA-3150Selecting and Using an Attenuation Display ModeTo set Absolute attenuation mode:Press the Abs button at

Setting Up Your Variable AttenuatorVariable Attenuator 27Selecting and Using an Attenuation Display ModeTo define an offset value for a specific wavel

Setting Up Your Variable Attenuator28 FVA-3150Selecting and Using an Attenuation Display ModeTo use the offset mode:1. Ensure that the display is in A

Setting Up Your Variable AttenuatorVariable Attenuator 29Selecting and Using an Attenuation Display ModeAny value within the attenuation range may be

Setting Up Your Variable Attenuator30 FVA-3150Selecting and Using an Attenuation Display ModeTo use the Reference mode:1. Ensure that the display is i

Setting Up Your Variable AttenuatorVariable Attenuator 31Saving and Recalling a ConfigurationSaving and Recalling a ConfigurationOnce the Variable Att

Setting Up Your Variable Attenuator32 FVA-3150Saving and Recalling a ConfigurationTo save a configuration:1. Customize the Variable Attenuator as requ

Setting Up Your Variable AttenuatorVariable Attenuator 33Saving and Recalling a ConfigurationTo recall a configuration:1. Press the Setup button.2. Pr

Contentsiv FVA-31506 Controlling Your Variable Attenuator Remotely ...45Setting Up the Variable Attenuator for Rem

Variable Attenuator 355 Operating Your Variable AttenuatorCleaning and Connecting Optical FibersTo connect the fiber-optic cable to the port:1. Inspec

Operating Your Variable Attenuator36 FVA-3150Cleaning and Connecting Optical Fibers3. Carefully align the connector and port to prevent the fiber end

Operating Your Variable AttenuatorVariable Attenuator 37Installing the EXFO Universal Interface (EUI)Installing the EXFO Universal Interface (EUI)The

Operating Your Variable Attenuator38 FVA-3150Performing an Attenuation RoutinePerforming an Attenuation RoutineYou can program the FVA-3150 Variable A

Operating Your Variable AttenuatorVariable Attenuator 39Performing an Attenuation Routine Switch to –11 dB attenuation for 10 seconds (step 1) Switc

Operating Your Variable Attenuator40 FVA-3150Performing an Attenuation Routine3. If you do not want the routine to be delayed, leave the delay at 000.

Operating Your Variable AttenuatorVariable Attenuator 41Performing an Attenuation Routine9. Press ENTER. The first digit will start flashing. Use the

Operating Your Variable Attenuator42 FVA-3150Performing an Attenuation RoutineTo start a routine:1. Set the wavelength by pressing  until you reach t

Operating Your Variable AttenuatorVariable Attenuator 43Performing an Attenuation RoutineTo stop the attenuation routine: 1. Press Program. 2. Press t

Variable Attenuator vCertification InformationCertification InformationFCC InformationElectronic test equipment is exempt from Part 15 compliance (FCC

Operating Your Variable Attenuator44 FVA-3150Operating the ShutterOperating the ShutterThe optical shutter is an electro-mechanical device which, when

Variable Attenuator 456 Controlling Your Variable Attenuator RemotelyThe FVA-3150 Variable Attenuator can be remotely controlled either by: a GPIB in

Controlling Your Variable Attenuator Remotely46 FVA-3150Setting Up the Variable Attenuator for Remote ControlTo select remote command mode:1. If you h

Controlling Your Variable Attenuator RemotelyVariable Attenuator 47Setting Up the Variable Attenuator for Remote ControlTo select a GPIB address:1. On

Controlling Your Variable Attenuator Remotely48 FVA-3150Communication ParametersCommunication ParametersNote: EOS means End of String. EOI means End o

Controlling Your Variable Attenuator RemotelyVariable Attenuator 49Standard Status Data StructureStandard Status Data StructureThe following page illu

Controlling Your Variable Attenuator Remotely50 FVA-3150Standard Status Data Structure&&&&&&&& ORStandard Event Status

Controlling Your Variable Attenuator RemotelyVariable Attenuator 51Command StructureAn SRQ is forced when a bit is set in the STB and at the same time

Controlling Your Variable Attenuator Remotely52 FVA-3150Error MessagesError MessagesSystem and device-specific errors are managed by the FVA-3150 Vari

Controlling Your Variable Attenuator RemotelyVariable Attenuator 53SCPI Management Errors (System Errors)SCPI Management Errors (System Errors)Error N

vi FVA-3150Certification Information Application of Council Directives: 2006/95/EC - The Low Voltage Directive 2004/108/E

Controlling Your Variable Attenuator Remotely54 FVA-3150RS-232 Connector PinoutRS-232 Connector PinoutThe RS-232 connector (serial port) at the back o

Variable Attenuator 557 MaintenanceTo help ensure long, trouble-free operation: Always inspect fiber-optic connectors before using them and clean the

Maintenance56 FVA-3150Cleaning EUI ConnectorsCleaning EUI ConnectorsRegular cleaning of EUI connectors will help maintain optimum performance. There i

MaintenanceVariable Attenuator 57Cleaning EUI Connectors5. Repeat steps 3 to 4 with a dry cleaning tip.Note: Make sure you don’t touch the soft end of

Maintenance58 FVA-3150Cleaning Detector PortsCleaning Detector PortsRegular cleaning of detectors will help maintain measurement accuracy.To clean det

MaintenanceVariable Attenuator 59Recalibrating the UnitRecalibrating the UnitManufacturing and service center calibrations are based on the ISO/IEC 17

Maintenance60 FVA-3150Recycling and Disposal (Applies to European Union Only)Recycling and Disposal (Applies to European Union Only) Unless otherwise

Variable Attenuator 618 TroubleshootingContacting the Technical Support GroupTo obtain after-sales service or technical support for this product, cont

Troubleshooting62 FVA-3150TransportationTransportationMaintain a temperature range within specifications when transporting the unit. Transportation da

Variable Attenuator 639 WarrantyGeneral InformationEXFO Inc. (EXFO) warrants this equipment against defects in material and workmanship for a period o

Variable Attenuator 11 Introducing the FVA-3150 Variable AttenuatorMain FeaturesThe FVA-3150 Variable Attenuator is the instrument that allows you to

Warranty64 FVA-3150LiabilityLiabilityEXFO shall not be liable for damages resulting from the use of the product, nor shall be responsible for any fail

WarrantyVariable Attenuator 65ExclusionsExclusionsEXFO reserves the right to make changes in the design or construction of any of its products at any

Warranty66 FVA-3150Service and RepairsService and RepairsEXFO commits to providing product service and repair for five years following the date of pur

WarrantyVariable Attenuator 67EXFO Service Centers WorldwideEXFO Service Centers WorldwideIf your product requires servicing, contact your nearest aut

Variable Attenuator 69A Technical SpecificationsIMPORTANTThe following technical specifications can change without notice. The information presented i

Technical Specifications70 FVA-3150GENERAL SPECIFICATIONSSize (H X W X D) 117 mm X 222 mm X 333 mm (45/8 in X 8 3/4 in X 13 1/8 in)Weight 2.6 kg (5

Variable Attenuator 71B Remote Control CommandsIEEE 488.2 Required Commands The Variable Attenuator recognizes the main commands identified in IEEE-48

Remote Control Commands72 FVA-3150IEEE 488.2 Required Commands*CLSDescription This command sets the contents of the Standard Event Register (ESR), the

Remote Control CommandsVariable Attenuator 73IEEE 488.2 Required Commands*ESR?Description This query reads the contents of the Standard Event Register

Introducing the FVA-3150 Variable Attenuator2 FVA-3150Front PanelFront PanelNote: Your FVA-3150 Variable Attenuator may differ slightly from the illus

Remote Control Commands74 FVA-3150IEEE 488.2 Required Commands*OPC?Description This query puts an ASCII 1 in the output queue when the contents of the

Remote Control CommandsVariable Attenuator 75IEEE 488.2 Required Commands*SREDescription This command sets bits in the Service Request Enable Register

Remote Control Commands76 FVA-3150IEEE 488.2 Required Commands*TRGDescription This command will trigger any event that was suspended and is waiting fo

Remote Control CommandsVariable Attenuator 77IEEE 488.2 Required CommandsThe FVA-3150 Variable Attenuator also recognizes commands that can only be us

Remote Control Commands78 FVA-3150IEEE 488.2 Required Commands*LOK?Description This query reads the FVA-3150 keypad lock state.Syntax *LOK?Response “1

Remote Control CommandsVariable Attenuator 79Specific commands-Quick Reference Command TreeSpecific commands-Quick Reference Command TreeCommandParame

Remote Control Commands80 FVA-3150Specific commands-Quick Reference Command TreeSTEP? 0.01<step<50 obtain current stepWAVEa<9999.9 [NM]> s

Remote Control CommandsVariable Attenuator 81Specific commands-Quick Reference Command TreeATTenuationDescription This command sets the attenuation to

Remote Control Commands82 FVA-3150Specific commands-Quick Reference Command TreeParameters The <value> parameter can be “MIN” (to set the FVA-3

Remote Control CommandsVariable Attenuator 83Specific commands-Quick Reference Command TreeATTenuation?Description This query returns a value correspo

Introducing the FVA-3150 Variable AttenuatorVariable Attenuator 3Back PanelBack PanelNote: Your FVA-3150 Variable Attenuator may differ slightly from

Remote Control Commands84 FVA-3150Specific commands-Quick Reference Command TreeCALDescription This command stores an offset value that will be applie

Remote Control CommandsVariable Attenuator 85Specific commands-Quick Reference Command TreeDDescription This command controls the shutter, which can b

Remote Control Commands86 FVA-3150Specific commands-Quick Reference Command TreeDISPlay:DIMMerDescription This command is used to adjust the intensity

Remote Control CommandsVariable Attenuator 87Specific commands-Quick Reference Command TreeFiberDescription This command specifies the type of fiber t

Remote Control Commands88 FVA-3150Specific commands-Quick Reference Command TreeINPut:ATTenuationDescription This command sets the attenuation to a sp

Remote Control CommandsVariable Attenuator 89Specific commands-Quick Reference Command TreeParameters The <value> parameter can be “MIN” (to se

Remote Control Commands90 FVA-3150Specific commands-Quick Reference Command TreeINPut:ATTenuation?Description This query returns a value indicating th

Remote Control CommandsVariable Attenuator 91Specific commands-Quick Reference Command TreeINPut:OFFSetDescription This command stores a reference val

Remote Control Commands92 FVA-3150Specific commands-Quick Reference Command TreeINPut:OFFSet?Description This query returns the current reference valu

Remote Control CommandsVariable Attenuator 93Specific commands-Quick Reference Command TreeINPut:STEP?Description This command is used to obtain the c