User Guide IQS-3150 Variable Attenuator for IQS Platforms
Copyright © 2006–2008 EXFO Electro-Optical Engineering Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, be it electronically, mechanically, or by any other means such as photocopying, recording or otherwise, without the prior written permission of EXFO Electro-Optical Engineering Inc. (EXFO). Information provided by EXFO is believed to be accurate and reliable.
Contents Contents Certification Information ........................................................................................................ v 1 Introducing the IQS-3150 Variable Attenuator ........................................... 1 Models and Options ...............................................................................................................1 Typical Applications ................................................................................................................
Contents 8 Maintenance ................................................................................................67 Cleaning Fixed Connectors ....................................................................................................68 Cleaning EUI Connectors ......................................................................................................70 Cleaning Detector Ports ........................................................................................................
Certification Information Certification Information F.C.C. Information Electronic test equipment is exempt from Part 15 compliance (FCC) in the United States. However, compliance verification tests are systematically performed on most EXFO equipment. Information Electronic test equipment is subject to the EMC Directive in the European Union. The EN61326 standard prescribes both emission and immunity requirements for laboratory, measurement, and control equipment.
Certification Information DECLARATION OF CONFORMITY Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: Equipment Type/Environment: Trade Name/Model No.: 73/23/EEC - The Low Voltage Directive 89/336/EEC - The EMC Directive And their amendments EXFO Electro-Optical Engineering Inc.
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.
Introducing the IQS-3150 Variable Attenuator Models and Options The IQS-3150 Variable Attenuator is available in four models: ³ Standard singlemode ³ Standard multimode ³ Self-adjusting singlemode (added Output Power control mode) ³ 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.
Introducing the IQS-3150 Variable Attenuator 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: ³ Erbium-doped-fiber amplifier (EDFA) and system characterization ³ Component and system loss simulation ³ Optical margin analysis ³ Instrument calibration ³ Power meter linearity measurement ³ Spectral tuning.
Introducing the IQS-3150 Variable Attenuator Main Software Features Main Software Features The dedicated software functions are very similar whether you are using a self-adjusting or standard module. The following is an overview of the main features. Control Center For the standard module, the output power value does not appear on the data display and there is no Output Power tab in the Control Center.
Introducing the IQS-3150 Variable Attenuator Main Software Features Control Modes (Self-Adjusting Modules) With the self-adjusting modules, you can select between two control modes: Attenuation and Output Power. Control Mode Attenuation Description The instrument applies the attenuation values you have selected. The value appearing at the top of the data display (dB) represents your attenuation setting whether it was entered in a test sequence or on the Instrument function tab.
Introducing the IQS-3150 Variable Attenuator Main Software Features Display Modes Both standard and self-adjusting modules give you a choice of three display modes: Absolute, Reference, and X+B. Attenuation Display Mode Description Absolute The displayed attenuation takes into account both the absolute value (default mode) and the offset value. Displayed att. = absolute att.
Introducing the IQS-3150 Variable Attenuator Main Software Features Output power Display Mode Description Absolute The displayed output power takes into account both the absolute (default mode) output power value and the offset value. Displayed power = absolute power + offset value Reference The displayed output power value is relative to a defined reference value (see Selecting a Display Mode on page 30).
Introducing the IQS-3150 Variable Attenuator Conventions Conventions Before using the product described in this manual, you should understand the following conventions: WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Do not proceed unless you understand and meet the required conditions. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
Introducing the IQS-3150 Variable Attenuator Laser Safety Information Laser Safety Information Your IQS-3150 Variable Attenuator does not include laser components in itself. However, other modules or units you will use may do so. Please, make sure to follow all laser safety rules. WARNING Do not install or terminate fibers while a light source is active. Never look directly into a live fiber and ensure that your eyes are protected at all times.
2 Getting Started with Your Variable Attenuator Inserting and Removing Test Modules CAUTION Never insert or remove a module while the controller unit and its expansion units are turned on. This will result in immediate and irreparable damage to both the module and unit. To insert a module into the controller or expansion unit: 1. Exit IQS Manager and turn off all your units. 2. Remove the protective cover from the desired unused module slot. 2a.
Getting Started with Your Variable Attenuator Inserting and Removing Test Modules 4. Insert the protruding edges of the module into the grooves of the unit’s module slot. 5 Protruding edges (right side of module) Retaining screw knob Retaining screw 5. Push the module all the way to the back of the slot, until the retaining screw makes contact with the unit casing. 6.
Getting Started with Your Variable Attenuator Inserting and Removing Test Modules The module is correctly inserted when its front panel is flush with the front panel of the controller or expansion unit. When you turn on the controller unit, the startup sequence will automatically detect your module. Note: You can insert IQ modules into your controller or expansion unit; the IQS Manager software will recognize them. However, the IQS-3150 locking mechanism (retaining screw) will not work for IQ modules.
Getting Started with Your Variable Attenuator Inserting and Removing Test Modules Connector NO YES Retaining screw knob CAUTION Pulling out a module by a connector could seriously damage both the module and connector. Always pull out a module by the retaining screw knob. 3. Cover empty slots with the supplied protective covers. 3a. Slide the top of the protective cover into the upper grooves of the unit. 3b. Snap the cover into place by pushing the retaining screw knob.
Getting Started with Your Variable Attenuator Starting the Variable Attenuator Application Starting the Variable Attenuator Application Your IQS-3150 Variable Attenuator module can be configured and controlled from its dedicated IQS Manager application. Note: For details about IQS Manager, refer to the IQS platform user guide. To start the application: 1. From the Current Modules function tab select the module to use. It will turn white to indicate that it is highlighted.
Getting Started with Your Variable Attenuator Starting the Variable Attenuator Application 2. Click Start Application. OR Press the green LED push button on the front of the corresponding module. You can also double-click its row. Note: Pressing the LED push button will not activate or turn on the module. Note: To start the corresponding monitor window at the same time, click Start App. & Monitor. The window opens on the Monitors function tab.
Getting Started with Your Variable Attenuator Starting the Variable Attenuator Application Data Display Some elements of the data display differ depending on the type of module you are using (standard or self-adjusting).
Getting Started with Your Variable Attenuator Starting the Variable Attenuator Application Title Bar The title bar is located at the top of the main window. It displays the module name and its position in the controller or expansion unit.
Getting Started with Your Variable Attenuator Entering Values Using Sliders and Numeric Boxes Entering Values Using Sliders and Numeric Boxes Many parameters in IQS Manager and module applications can be set using the following tools. Slider Numeric box button Fine-tuning box Navigation buttons ³ Slider: Drag it to the desired value on the scale below. ³ Navigation buttons: Click either buttons to move the slider.
Getting Started with Your Variable Attenuator Exiting the Application Exiting the Application Closing any application that is not currently being used is a good way to free system memory. To close the application from the main window: Click in the top right corner of the main window. OR Click the Exit button located at the bottom of the function bar. To close all currently running applications: From IQS Manager, click Close All Applications.
3 Setting Up Your Variable Attenuator The IQS-3150 comes with factory default settings; however, you can create custom settings and save them in configuration files. Basic Settings When you start the Variable Attenuator dedicated application, it opens the Instrument function tab. To start building your own test settings, click the Settings function tab.
Setting Up Your Variable Attenuator Basic Settings Customizing the Wavelength and Fine-Tuning Step Lists You can define lists of wavelengths and fine-tuning steps that will be available during operation. To add a value to the lists: 1. On the Settings function tab, click the Presets tab and, under Wavelength or Fine-Tuning Step, enter the value in the New Value box. 2. Click the button to add the value to the list. To delete a value from the lists: 1.
Setting Up Your Variable Attenuator Basic Settings Setting the B Value The B value settings are necessary for the X+B display mode. These settings apply to one or many wavelengths defined in the Wavelength list and are only enabled when using this display mode. The B value settings are available for both standard and self adjusting modules. The B value is defined as a correction factor or defined as an input power value representing the attenuation in the equivalent output power in dBm.
Setting Up Your Variable Attenuator Basic Settings To set a correction factor for a wavelength: 1. On the Settings function tab, click the Presets tab. 2. Under B Value, in the Wavelength list, use the up/down arrows to select the wavelength for which you want to add a correction factor.
Setting Up Your Variable Attenuator Basic Settings 3. According to the control mode used, select the correction factor as follows: ³ For the Attenuation mode, under Attenuation Mode, click the Correction Factor button, and enter the correction value in the box next to it. ³ For the Output power mode, under Output Power Mode, enter the correction value in the Correction Factor box. Self-adjusting module Standard module 4. Click Apply.
Setting Up Your Variable Attenuator Basic Settings Input Power The Input Power setting, only available in the Attenuation control mode, allows you to set the source power in dBm. This changes the attenuation scale values in the Control Center to the equivalent values of the output power in dBm. You can then use the slider to select an output power value rather than an attenuation value. It is not as precise as the Output Power control mode but it is still useful for certain test applications.
Setting Up Your Variable Attenuator Basic Settings Setting the Drift Tolerance The drift tolerance setting is only available for the self-adjusting modules and is only applicable for the Power Tracking function (see Using the Power Tracking Function (Self-Adjusting Modules) on page 52).
Setting Up Your Variable Attenuator Basic Settings To set the drift tolerance: 1. On the Settings function tab, click the Presets tab. 2. Under Output Power Mode, in the Value box, enter the tolerance value. 3. Click the 28 button to accept the value.
Setting Up Your Variable Attenuator Control Center Settings and Controls Control Center Settings and Controls Once the basic settings are entered, you can set parameters in the Control Center to create your test configuration. Start creating your configuration by selecting a control mode (self-adjusting modules only).
Setting Up Your Variable Attenuator Control Center Settings and Controls Selecting a Display Mode The active display mode determines the significance of the value appearing on the data display. For a description of each display mode, refer to Display Modes on page 6. IMPORTANT For the IQS-3150 Variable Attenuator, the absolute (or total) attenuation is the actual optical insertion loss between the input and output ports, including connector losses.
Setting Up Your Variable Attenuator Control Center Settings and Controls To select a display mode: 1. Click the Instrument function tab. The selected display mode 2. Under Control Center, enter the appropriate settings. 3. Under Mode click the appropriate button. The selected display mode appears next to Mode on the data display.
Setting Up Your Variable Attenuator Control Center Settings and Controls Selecting a Wavelength and a Fine-Tuning Step The attenuator wavelength must be set as closely as possible to the wavelength of the optical source. The IQS-3150 Variable Attenuator module provides a wide range of wavelengths: 1250 nm to 1650 nm for singlemode modules and 700 nm to 1350 nm for multimode modules. The fine-tuning step can be as low as 0.002.
Setting Up Your Variable Attenuator Control Center Settings and Controls Changing the Attenuation or the Output Power You can change the attenuation or the output power (self-adjusting module only) value while performing your tests. In the Attenuation control mode, you can select any value between the minimum insertion loss and the maximum permitted by the module specifications.
Setting Up Your Variable Attenuator Control Center Settings and Controls Defining an Offset Value The offset value is not applied to a particular wavelength. It does not affect the filter attenuation. It can be used to compensate for the loss generated elsewhere in the system. To define an offset value: 1. Click the Instrument function tab. 2. Under Offset, enter de desired value in the box and click the value. to accept Note: The offset values must be between -99.999 dB and 99.999 dB.
Setting Up Your Variable Attenuator Creating a Test Sequence Creating a Test Sequence The IQS-3150 allows you to create test sequences so that the attenuation or output power steps are performed automatically without your intervention. The sequences can be saved and retrieved to be used as is or to be used as a template in which you can insert or remove steps. To build a new sequence starting with an old one, under Sequence File, click the Open button.
Setting Up Your Variable Attenuator Creating a Test Sequence Adding, Inserting, and Removing Steps You can customize test sequences: ³ by adding steps, either to a new sequence or an existing one ³ by inserting steps to an existing sequence. To add, insert, and remove steps: 1. On the Settings function tab, click the Sequencer tab. 2. Under Sequence Steps, select the control mode.
Setting Up Your Variable Attenuator Creating a Test Sequence 3. In the Attenuation or the Output Power box (depending on the selected control mode) enter the attenuation or the output power level you need. In Attenuation mode In Output Power mode 4. In the Duration box, enter the length of time this level will be applied before the next step. 5. Click Add (the new step is added at the end of the step list).
Setting Up Your Variable Attenuator Creating a Test Sequence Setting a Starting Time The start of a test sequence can be set to a definite time of day (Absolute) or be delayed by a countdown (Relative). To set a sequence starting time: 1. On the Settings function tab, click the Sequencer tab. 2. Under Sequence File, open a test sequence or create one (refer to Adding, Inserting, and Removing Steps on page 36).
Setting Up Your Variable Attenuator Creating a Test Sequence 3. Under Starting Time, click the Relative or the Absolute button. 4. In the box below the buttons, enter one of the following value: ³ The amount of time you need between the moment you click the Start button and the moment the sequence starts (Relative). ³ The time (in the next 24 hours) at which you want the sequence to start (Absolute).
Setting Up Your Variable Attenuator Creating a Test Sequence Setting Repetition Scheme The test sequence can be set to repeat itself for a certain number of times or on a continuous basis. Note: If you have entered a setting for the sequence start, the delay or start time will only apply for the first sequence in the loop. To set the sequence repetition scheme: 1. On the Settings function tab, click the Sequencer tab.
Setting Up Your Variable Attenuator Creating a Test Sequence 2. Under Sequence File, open a test sequence. OR Create a sequence (refer to Adding, Inserting, and Removing Steps on page 36). 3. Under Sequence Loop, click Loop Count and, in the text box, enter the number of times the sequence must be repeated. OR Click the Continuous Loop button. 4. Under Sequence File, click Save As if you want to save that sequence.
Setting Up Your Variable Attenuator Managing Sequence Files Managing Sequence Files The commands to open new or existing sequence files and to save them are located on the Sequencer tab of the Settings function tab. ³ 42 Clicking the New button clears all previous settings allowing you to build a completely new sequence.
Setting Up Your Variable Attenuator Managing Sequence Files ³ Clicking the Open button opens the Open Sequence File dialog box from which you can select a sequence file. ³ Clicking the Save As button opens the Save Sequence File dialog box from which you can select a directory to save your sequence file.
Setting Up Your Variable Attenuator Saving and Recalling Configurations Saving and Recalling Configurations Once you have set the IQS-3150 Variable Attenuator parameters, you can save your custom configuration and recall it at any time. You can also recall the factory-defined settings. Saved configurations include all parameters set in the Control Center (Instrument function tab) and in the Settings function tab (if present). To save a configuration: 1. Select the Configuration function tab.
Setting Up Your Variable Attenuator Saving and Recalling Configurations To recall a configuration: 1. Select the Configuration function tab. 2. Click Open. 3. Select the configuration file you wish to recall and confirm your action. You are returned to the application and the new parameters are set. To revert to factory settings: 1. Select the Configuration function tab. 2. Click the Reset Module to Factory Settings button.
4 Operating the IQS-3150 This section presents basic operations using the Variable Attenuator. Cleaning and Connecting Optical Fibers IMPORTANT To ensure maximum power and to avoid erroneous readings: ³ Always clean fiber ends as explained below before inserting them into the port. EXFO is not responsible for damage or errors caused by bad fiber cleaning or handling. ³ Ensure that your patchcord has appropriate connectors. Joining mismatched connectors will damage the ferrules.
Operating the IQS-3150 Installing the EXFO Universal Interface (EUI) Installing the EXFO Universal Interface (EUI) The EUI fixed baseplate is available for connectors with angled (APC) or non-angled (UPC) polishing. A green border around the baseplate indicates that it is for APC-type connectors. Green border indicates APC option Bare metal (or blue border) indicates UPC option To install an EUI connector adapter onto the EUI baseplate: 1. Hold the EU connector adapter so the dust cap opens downwards.
Operating the IQS-3150 Nulling Electrical Offsets IMPORTANT Light must not reach the detector when nulling offsets. The nulling function is only available for the self-adjusting modules. To perform the power meter nulling: 1. Click the Instrument function tab. 2. Click the Nulling button.
Operating the IQS-3150 Running an Attenuation Sequence Running an Attenuation Sequence Attenuation sequences allow you to automate and ease your testing process. Prepare the test sequence as described in Creating a Test Sequence on page 35. To start an attenuation sequence: 1. Click the Instrument function tab. Note: Once a sequence is started, all controls in the Instrument function tab are disabled to avoid accidental interruptions.
Operating the IQS-3150 Running an Attenuation Sequence You can interrupt a sequence at any time by clicking Pause; click Resume when you are ready to continue. Note: When you click the Pause button, the sequence will not be restarted at the point you paused it. Upon clicking the Resume button, the acquisition will start with the next step in the sequence. If you click Pause between two steps, when you click Resume the system will go directly to the next step.
Operating the IQS-3150 Using the Power Tracking Function (Self-Adjusting Modules) Using the Power Tracking Function (Self-Adjusting Modules) The power tracking function is used to monitor, when in the Output Power control mode, the output power level and automatically adjust the attenuation to keep the output power to the requested level. In order to use the power tracking function, you must define a range of power levels (see Setting the Drift Tolerance on page 27).
Operating the IQS-3150 Using the Shutter Using the Shutter The shutter is used to let light through the input or block it. CAUTION Using the shutter continuously, at a rate of one cycle per three seconds, may damage the instrument permanently or seriously reduce its life cycle. To use the shutter: 1. Click the Instrument function tab. 2. Under Shutter, click the switch to open or close the shutter.
Operating the IQS-3150 Using the Shutter Shutter Status The status of the shutter is shown on the left of the data display. Open Close It is also shown on the Shutter (red) LED push button on the front panel of the module; when lit, the shutter is closed. High-Power Detection The module is equipped with a sensor that detects the presence of unusually high power at the input.
5 Controlling Multiple Variable Attenuators With your platform, you can set common parameters and simultaneously operate several modules of the same kind in a single interface, which is particularly useful in larger systems. Note: You should be familiar with the configuration and operation of a single module before controlling multiple modules simultaneously. Starting a Multimodule Application The multimodule applications available will change according to your module configuration (model, type, etc.).
Controlling Multiple Variable Attenuators Selecting Modules to Control Selecting Modules to Control Before you can modify the module parameters, you must specify which modules you intend to use. To select IQS-3150 Variable Attenuator modules: 1. On the Modules/Config function tab, select the boxes corresponding to the modules you want to control. OR Click Select All if you want to work with all IQS-3150 Variable Attenuator modules. 2. Click Apply Selections and click the Instruments function tab.
Controlling Multiple Variable Attenuators Controlling a Single IQS-3150 Variable Attenuator On the Instruments function tab, you can set parameters for any number of modules at a time. Select the modules for which you want to set the parameters and use the functions in the control center. (For more information on settings and controls, refer to Control Center Settings and Controls on page 29.
Controlling Multiple Variable Attenuators Navigating and Closing Multiple Module Windows Navigating and Closing Multiple Module Windows When controlling multiple modules, a number of windows are open at the same time. To close a window, use the Exit button located under the function tabs. You will return to the preceding window.
6 Monitoring Variable Attenuator Modules When using your IQS-3150 Variable Attenuator module, either alone or with other modules in a test setup, you can view module data and status using its monitor window in IQS Manager. Using Monitor Windows Monitor windows display basic data about modules. A combination of resizable windows allows you to create an integrated data display (refer to the platform user guide).
Monitoring Variable Attenuator Modules Using Monitor Windows To select modules and display their monitor windows: 1. On the Current Modules function tab, select the controller or expansion unit containing the modules you want to monitor. Selected modules (checked) 2. In the Monitor column, select the box next to each module you want to monitor. If you want to monitor all the modules in the current unit, click Select All Monitors. If you want to clear your choices, click Deselect All Monitors.
Monitoring Variable Attenuator Modules Using Monitor Windows 3. Click Start Monitor to apply your selection. IQS Manager will display the selected monitor windows on the Monitors function tab. Note: To start the highlighted module’s corresponding application at the same time, click Start App. & Monitor. The application will appear in a different window.
Monitoring Variable Attenuator Modules Using QuickTools Using QuickTools With QuickTools, you can fine-tune your module directly, while keeping an eye on your entire test setup. Note: You can only access QuickTools if the module’s monitor window is selected from the Monitors function tab and is currently active. To start QuickTools: 1. From the Monitors function tab, elect the monitor window of the module you wish to control. 2. Using the arrow button in the upper left corner, select QuickTools.
Monitoring Variable Attenuator Modules Using QuickTools To close QuickTools: ³ Click the Close button located at the top of the window. OR ³ Click outside the QuickTools window. To close a monitor window: Click the button on the upper left of the monitor window and select Remove Monitor. OR Click the Close All button at the bottom of the window.
7 Measuring Multimode Insertion Loss Often, when using a multimode source (mostly LED sources), part of the optical energy is transmitted into the fiber cladding. These cladding modes attenuate rapidly, but will affect power meter readings if the source is connected using only a short jumper, as would be the case when taking a reference before measuring insertion loss.
Measuring Multimode Insertion Loss There are several methods of eliminating these cladding modes: 66 ³ A cladding mode stripper (preferred method) is a material with a refractive index greater than that of the cladding. With the cladding exposed, the fiber is immersed in the mode stripper (glycerin, oil, or other suitable liquid). Due to the greater refractive index of the stripper, light energy is not reflected at the cladding-stripper interface and passes through the stripper.
8 Maintenance To help ensure long, trouble-free operation: ³ Always clean fiber-optic connectors before using them. ³ Keep the unit free of dust. ³ Clean the unit casing and front panel with a cloth slightly dampened with water. ³ Store unit at room temperature in a clean and dry area. Keep the unit out of direct sunlight. ³ Avoid high humidity or significant temperature fluctuations. ³ Avoid unnecessary shocks and vibrations.
Maintenance Cleaning Fixed Connectors Cleaning Fixed Connectors Regular cleaning of connectors will help maintain optimum performance. Do not try to disassemble the unit. Doing so would break the connector. To clean fixed connectors: 1. Fold a lint-free wiping cloth in four to form a square. 2. Moisten the center of the lint-free wiping cloth with only one drop of isopropyl alcohol. IMPORTANT Alcohol may leave traces if used abundantly.
Maintenance Cleaning Fixed Connectors 6. Moisten a cleaning tip (2.5 mm tip) with only one drop of isopropyl alcohol. IMPORTANT Alcohol may leave traces if used abundantly. Avoid contact between the tip of the bottle and the cleaning tip, and do not use bottles that distribute too much alcohol at a time. 7. Slowly insert the cleaning tip into the connector until it reaches the ferrule inside (a slow clockwise rotating movement may help). 8 7 9 8. Gently turn the cleaning tip one full turn. 9.
Maintenance Cleaning EUI Connectors Cleaning EUI Connectors Regular cleaning of EUI connectors will help maintain optimum performance. There is no need to disassemble the unit. IMPORTANT If any damage occurs to internal connectors, the module casing will have to be opened and a new calibration will be required. To clean EUI connectors: 1. Remove the EUI from the instrument to expose the connector baseplate and ferrule. Turn Pull Push 2. Moisten a 2.
Maintenance Cleaning EUI Connectors 5. Repeat steps 3 to 4 with a dry cleaning tip. Note: Make sure you don’t touch the soft end of the cleaning tip. 6. Clean the ferrule in the connector port as follows: 6a. Deposit one drop of isopropyl alcohol on a lint-free wiping cloth. IMPORTANT Isopropyl alcohol may leave residues if used abundantly or left to evaporate (about 10 seconds). Avoid contact between the tip of the bottle and the wiping cloth, and dry the surface quickly. 6b.
Maintenance Cleaning Detector Ports Cleaning Detector Ports Regular cleaning of detectors will help maintain measurement accuracy. IMPORTANT Always cover detectors with protective caps when unit is not in use. To clean detector ports: 1. Remove the protective cap and adapter (FOA) from the detector. 2. If the detector is dusty, blow dry with compressed air. 3. Being careful not to touch the soft end of the swab, moisten a cleaning tip with only one drop of isopropyl alcohol.
Maintenance Homing the Variable Attenuator (User Calibration) Homing the Variable Attenuator (User Calibration) The variable attenuator contains mechanical elements used to change attenuation or output power (self-adjusting modules) levels. It is a good practice to have the instrument mechanism return to the zero (home) position to reestablish its relative position on the range of attenuation or output power levels.
Maintenance Recalibrating the Unit Recalibrating the Unit Manufacturing and service center calibrations are based on the ISO/IEC 17025 Standard, which states that calibration documents must not contain a recommended calibration interval, unless this has been previously agreed upon with the customer. Validity of specifications depends on operating conditions.
Maintenance Recycling and Disposal (Applies to European Union Only) Recycling and Disposal (Applies to European Union Only) Recycle or dispose of your product (including electric and electronic accessories) properly, in accordance with local regulations. Do not dispose of it in ordinary garbage receptacles. This equipment was sold after August 13, 2005 (as identified by the black rectangle).
9 Troubleshooting Viewing Online Documentation An online version of the IQS-3150 Variable Attenuator user guide is conveniently available at all times from the application. To access the online user guide: Click Help in the function bar. Finding Information on the EXFO Web Site The EXFO Web site provides answers to frequently asked questions (FAQs) regarding the use of your IQS-3150 Variable Attenuator. To access FAQs: 1. Type http://www.exfo.com in your Internet browser. 2. Click the Support tab. 3.
Troubleshooting Contacting the Technical Support Group Contacting the Technical Support Group To obtain after-sales service or technical support for this product, contact EXFO at one of the following numbers. The Technical Support Group is available to take your calls from Monday to Friday, 8:00 a.m. to 7:00 p.m. (Eastern Time in North America). For detailed information about technical support, visit the EXFO Web site at www.exfo.com.
Troubleshooting Contacting the Technical Support Group You may also be requested to provide software and module version numbers. This information, as well as technical support contact information, can be found in the About function tab. ³ Select the Technical Support tab to view phone numbers and active Internet links to EXFO’s Technical Support Group. Use these links to send an information request by email or to access EXFO’s web site.
Troubleshooting Transportation Transportation Maintain a temperature range within specifications when transporting the unit. Transportation damage can occur from improper handling. The following steps are recommended to minimize the possibility of damage: 80 ³ Pack the unit in its original packing material when shipping. ³ Avoid high humidity or large temperature fluctuations. ³ Keep the unit out of direct sunlight. ³ Avoid unnecessary shocks and vibrations.
10 Warranty General Information EXFO Electro-Optical Engineering Inc. (EXFO) warrants this equipment against defects in material and workmanship for a period of two years from the date of original shipment. EXFO also warrants that this equipment will meet applicable specifications under normal use.
Warranty Exclusions Exclusions EXFO reserves the right to make changes in the design or construction of any of its products at any time without incurring obligation to make any changes whatsoever on units purchased. Accessories, including but not limited to fuses, pilot lamps, batteries and universal interfaces (EUI) used with EXFO products are not covered by this warranty.
Warranty Service and Repairs Service and Repairs EXFO commits to providing product service and repair for five years following the date of purchase. To send any equipment for service or repair: 1. Call one of EXFO’s authorized service centers (see EXFO Service Centers Worldwide on page 84). Support personnel will determine if the equipment requires service, repair, or calibration. 2.
Warranty EXFO Service Centers Worldwide EXFO Service Centers Worldwide If your product requires servicing, contact your nearest authorized service center. EXFO Headquarters Service Center 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA EXFO Europe Service Center Omega Enterprise Park, Electron Way Chandlers Ford, Hampshire S053 4SE ENGLAND EXFO China Service Center/ Beijing OSIC Beijing New Century Hotel Office Tower, Room 1754-1755 No. 6 Southern Capital Gym Road Beijing 100044 P. R.
A Technical Specifications IMPORTANT The following technical specifications can change without notice. The information presented in this section is provided as a reference only. To obtain this product’s most recent technical specifications, visit the EXFO Web site at www.exfo.com. SPECIFICATIONS a Singlemode Configurations Description Models Fiber type (μm) Wavelength range (nm) Max. attenuation b (dB) Insertion loss c,d (dB) Typical Max.
Technical Specifications GENERAL SPECIFICATIONS Size (H X W X D) Weight Temperature Operating Storage Relative humidity 86 125 mm X 36 mm X 282 mm 0.7 kg (4 15/16 in X 1 7/16 in X 11 1/8 in) (1.
B SCPI Command Reference This appendix presents detailed information on the commands and queries supplied with your IQS-3150 Variable Attenuator. IMPORTANT Since the IQS controllers and expansion units can house many instruments, you must explicitly specify which instrument you want to remotely control. You must add the following mnemonic at the beginning of any command or query that you send to an instrument (except for IEEE 488.
SCPI Command Reference Quick Reference Command Tree Quick Reference Command Tree Command CALibration [1..n] CONTrol[1..n] Parameter(s) P. ZERO 90 MODE ATTenuation|POWer 91 MODE? INPut[1..
SCPI Command Reference Quick Reference Command Tree Command Parameter(s) P. REFerence DBM]> |MAXimum|MINimum|DEFault REFerence? [MAXimum|MINimum|DEFault] 135 RPOWer DBM]> |MAXimum|MINimum|DEFault 137 RPOWer? [MAXimum|MINimum|DEFault] 139 [STATe] 141 [STATe]? 133 142 READ[1..n] [SCALar] POWer DC? 143 SENSe[1..
SCPI Command Reference Product-Specific Commands—Description Product-Specific Commands—Description :CALibration[1..n]:ZERO Description Returns the mechanism of the instrument to its home position. This command is an event and has no associated *RST condition or query form. 90 Syntax :CALibration[1..n]:ZERO Parameter(s) None Example(s) STAT:QUES:BIT9:COND? Returns 1 if the instrument's mechanism should be returned to its home position.
SCPI Command Reference Product-Specific Commands—Description :CONTrol[1..n]:MODE Description This command selects the attenuator's control mode. At *RST, the control mode is ATTenuation. Syntax :CONTrol[1..n]:MODEATTenuation| POWer Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element. The allowed elements for this parameter are: ATTenuation|POWer.
SCPI Command Reference Product-Specific Commands—Description :CONTrol[1..n]:MODE? Description This query returns the attenuator's control mode. At *RST, the control mode is ATTenuation. Syntax :CONTrol[1..n]:MODE? Parameter(s) None Response Syntax Response(s) Mode: The response data syntax for is defined as a element. The response corresponds to the selected control mode. ATTENUATION: the attenuation control mode is selected.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:ARESolution? Description This query returns the smallest attenuation step available. Use this command to determine the maximum resolution of the attenuation. *RST has no effect on this command. Syntax :INPut[1..n]:ARESolution? Parameter(s) None Response Syntax Response(s) Resolution: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:ATTenuation Description This command sets the absolute attenuation to a specific value. The valid range of values depends on the type of instrument and the current wavelength. This value is used only when the ATTenuation control mode is active. In POWer mode, the device adjusts the attenuation automatically to match the desired output power. For this reason, changes made to attenuation via the INPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:ATTenuation DEFault allows the instrument to select a value for the parameter. The parameter corresponds to a valid attenuation value. You can use the INPut[1..n]:ATTenuation? MAX and INPut[1..n]:ATTenuation? MIN queries to determine a valid attenuation range for the current wavelength.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:ATTenuation? Description This query returns a value indicating either the current or the minimum/maximum absolute attenuation value. At *RST, the absolute attenuation value that will be set depends on the instrument you have. Syntax :INPut[1..n]:ATTenuation?[MAXimum|MI Nimum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:ATTenuation? Response(s) Attenuation: The response data syntax for is defined as a element. The response represents either the current or the MINimum/MAXimum absolute attenuation, in dB. Example(s) INP:WAV 1310 NM CONT:MODE ATT INP:ATT 25.30 INP:ATT? Returns: 2.530000E+001 See Also :INPut[1..n]:ATTenuation :INPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:OFFSet Description This command sets an offset value for the attenuation. This offset value will be added to the absolute attenuation. The same offset value will be used for all wavelengths. This value is used only when the ATTenuation control mode is active. The offset is only taken into account when the INPut[1..n]:RATTenuation command is used. At *RST, the current value is set to 0 dB. Syntax :INPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:OFFSet Example(s) INP:WAV 1310 NM CONT:MODE ATT OUTP:APM ABS INP:OFFS DEF INP:ATT 20.50 DB INP:ATT? Returns: 2.050000E+001 INP:RATT? Returns: 2.050000E+001 INP:OFFS –5.000 DB INP:ATT? Returns: 2.050000E+001 INP:RATT? Returns: 1.550000E+001 INP:OFFS 4.000 DB INP:ATT? Returns: 2.050000E+001 INP:RATT? Returns: 2.450000E+001 See Also Variable Attenuator :INPut[1..n]:OFFSet? :INPut[1..n]:RATTenuation :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:OFFSet? Description This query returns a value indicating either the current or the minimum/maximum attenuation offset value. At *RST, the current value is set to 0 dB. Syntax :INPut[1..n]:OFFSet?[MAXimum|MINimu m|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:OFFSet? Response(s) Offset: The response data syntax for is defined as a element. The response represents either the current or the MINimum/MAXimum offset setting in dB. Example(s) CONT:MODE ATT INP:OFFS 12.482 INP:OFFS? Returns: 1.248200E+001 See Also :INPut[1..n]:OFFSet :INPut[1..n]:RATTenuation :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:RATTenuation Description This command sets the relative attenuation to a specific value. The valid range of values depends on the type of instrument, the configuration, and the current wavelength. This value is used only when the ATTenuation control mode is active. At *RST, the relative attenuation value that will be set depends on the instrument you have. Syntax :INPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:RATTenuation DEFault allows the instrument to select a value for the parameter. The parameter is a valid relative attenuation value. You can use the INPut[1..n]:RATTenuation? MAX and INPut[1..n]:RATTenuation? MIN queries to determine a valid range for the attenuation. a) In ABSolute mode, = absolute attenuation + offset value.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:RATTenuation STAT:OPER:BIT8:COND? Keep sending the query as long as attenuation is not reached. When attenuation is reached, the returned value is 0. INP:ATT? Returns: 1.435500E+001 INP:RATT? Returns: 1.535500E+001 OUTP:APM REF INP:ATT? Returns: 1.435500E+001 INP:RATT? Returns: 1.000000E+000 INP:RATT -2.000 STAT:OPER:BIT8:COND? Keep sending the query as long as attenuation is not reached.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:RATTenuation? Description This query returns either the current or the minimum/maximum relative attenuation. At *RST, the relative attenuation value that will be set depends on the instrument you have. Syntax :INPut[1..n]:RATTenuation?[MAXimum| MINimum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:RATTenuation? The response represents either the current or the MINimum/MAXimum relative attenuation, in dB. a) In ABSOLUTE mode, = absolute attenuation + offset value. b) In REFERENCE mode, = absolute attenuation – reference value + offset value. c) In XB mode (dB), = absolute attenuation + correction factor (wavelength-specific) + offset value.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:REFerence Description This command sets, for the current wavelength, a reference value for the attenuation. When the instrument is used in Reference mode, the attenuation configured with the INPut[1..n]:RATTenuation command is relative to this reference value. This command will have no effect when the instrument is used in Absolute or X + B mode. This value it used only when the ATTenuation control mode is active.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:REFerence Example(s) INP:WAV 1310 NM CONT:MODE ATT OUTP:APM ABS INP:OFFS 0.000 DB INP:RATT 33.865 DB OUTP:APM REF INP:RATT? Returns: 0.000000E+001 INP:REF? Returns: 3.386500E+001 INP:REF 12.345 DB INP:RATT? Returns: 2.152000E+001 INP:REF MIN See Also 108 :INPut[1..n]:RATTenuation :INPut[1..n]:REFerence? :OUTPut[1..n]:APMode :OUTPut[1..n]:APMode? :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:REFerence? Description This query returns either the current or the minimum/maximum reference value for the attenuation. At *RST, the reference value that will be set depends on the instrument you have. Syntax :INPut[1..n]:REFerence?[MAXimum|MINi mum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:REFerence? Response(s) Reference: The response data syntax for is defined as a element. The response represents either the current or the MINimum/MAXimum reference value in dB. 110 Example(s) INP:WAV 1310 NM CONT:MODE ATT OUTP:APM REF INP:REF? See Also :INPut[1..n]:RATTenuation? :INPut[1..n]:REFerence :OUTPut[1..n]:APMode :OUTPut[1..n]:APMode? :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:WAVelength Description This command selects a specific wavelength. At *RST, the wavelength that will be selected depends on the instrument you have. Syntax :INPut[1..n]:WAVelengthM]>|MAXimum|MINimum|DEFault Parameter(s) Wavelength: The program data syntax for is defined as a element followed by an optional element.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:WAVelength DEFault allows the instrument to select a value for the parameter. The parameter corresponds to the current wavelength. You can use the INPut[1..n]:WAVelength? MAX and INPut[1..n]:WAVelength? MIN queries to determine a valid range for the wavelength. 112 Example(s) INP:WAV 1310 NM STAT:OPER:BIT8:COND? Keep sending the query as long as attenuation is not reached.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:WAVelength? Description This query returns a value indicating either the current or the minimum/maximum wavelength. At *RST, the wavelength that will be selected depends on the instrument you have. Syntax :INPut[1..n]:WAVelength?[MAXimum|MI Nimum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :INPut[1..n]:WAVelength? Response(s) Wavelength: The response data syntax for is defined as a element. The response corresponds to either the current or the MINimum/MAXimum wavelength setting, in meters. 114 Example(s) INP:WAV? MAX Returns: the maximum valid wavelength. INP:WAV 1310 NM INP:WAV? Returns: 1.310000E–006. See Also :INPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:ALC[:STATe] Description This command activates or deactivates the power tracking that controls the output power level. The power tracking is done via the ALC (Automatic Leveling Control) loop. The state of the ALC loop (on or off) is used only when the POWer control mode is active. At *RST, this value is set to off. Syntax :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:ALC[:STATe]? Description This query indicates if the power tracking that controls the output power level has been activated or not. The power tracking is done via the ALC (Automatic Leveling Control) loop. At *RST, this value is set to off. Syntax :OUTPut[1..n]:ALC[:STATe]? Parameter(s) None Response Syntax Response(s) State: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:APMode Description This command selects, for the active control mode (ATTenuation or POWer), the operation mode (ABSolute, REFerence or X+B ). At *RST, the operation mode is ABSolute for both control modes (ATTenuation and POWer). Syntax :OUTPut[1..n]:APModeABSolute|XB|REF erence Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:APMode 118 Example(s) INP:WAV 1310 NM CONT:MODE ATT OUTP:APM ABS INP:RATT 42.75 INP:RATT? Returns: 4.275000E+001 OUTP:APM XB CONT:MODE POW OUTP:APM REF CONT:MODE ATT OUTP:APM? Returns XB (corresponding to the X+B operation mode) Notes Since the operation mode applies to the active control mode, you must first define the control mode with the :CONTrol[1..n]:MODE command. See Also :CONTrol[1..n]:MODE :INPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:APMode? Description This query returns, for active control mode (ATTenuation or POWer), the current operation mode (ABSolute|XB|REFerence). At *RST, the operation mode is ABSolute for both control modes (ATTenuation and POWer). Syntax :OUTPut[1..n]:APMode? Parameter(s) None Response Syntax Response(s) Mode: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:DTOlerance Description This command specifies the drift tolerance that will be used for power tracking via the ALC (Automatic Leveling Control) loop. This value is only taken into account when the ALC loop is active (OUTPut[1..n]:ALC[:STATe] ON). This value is used only when the POWer control mode is active. At *RST, the value that will be set depends on the instrument you have. Syntax :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:DTOlerance DEFault allows the instrument to select a value for the parameter. The parameter corresponds to a valid drift tolerance for the power tracking via the ALC loop, in dB. You can use the OUTPut[1..n]:DTOlerance? MAX and OUTPut[1..n]:DTOlerance? MIN queries to determine a valid range for the drift tolerance. Example(s) INP:WAV 1310 NM CONT:MODE POW OUTP:POW -25.00 DBM OUTP:ALC:STAT ON OUTP:DTO 0.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:DTOlerance? Description This query returns the drift tolerance that is used for power tracking via the ALC (Automatic Leveling Control) loop. At *RST, the value that will be set depends on the instrument you have. Syntax :OUTPut[1..n]:DTOlerance?[MAXimum| MINimum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:DTOlerance? Response(s) Drift: The response data syntax for is defined as a element. The response corresponds to either the current or the MINimum/MAXimum drift tolerance that is used for power tracking via the ALC (Automatic Leveling Control) loop. Example(s) OUTP:DTO 5e-3 DB OUTP:DTO? 5.000000E-003 See Also :OUTPut[1..n]:POWer :OUTPut[1..n]:DTOlerance :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:LOCK[:STATe]? Description This query returns the lock state of the instrument's shutter. If the shutter is closed using the red push button (located on the front panel of the instrument), the shutter is automatically locked. Once the shutter is locked, it can only be unlocked by using the red push button again. At *RST the lock state remains unchanged. Syntax :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:OFFSet Description This command sets a power offset value. The power offset value will be added to the absolute output power.The same power offset value will be used for all wavelengths. The offset is only taken into account when the OUTut[1..n]:RPOWer command is used. This value it used only when the POWer control mode is active. At *RST, this value is set to 0 dB. Syntax :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:OFFSet DEFault allows the instrument to select a value for the parameter. The parameter corresponds to a valid power offset in dB. The offset value will be added to the absolute power. The same offset value will be used for all wavelengths. You can use the OUTPut[1..n]:OFFSet? MAX and OUTPut[1..n]:OFFSet? MIN queries to determine a valid range for the power offset.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:OFFSet? Description This query returns a value indicating either the current or the minimum/maximum power offset setting. At *RST, this value is set to 0 dB. Syntax :OUTPut[1..n]:OFFSet?[MAXimum|MINi mum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:OFFSet? Response(s) Offset: The response data syntax for is defined as a element. The response corresponds to either the current or the MINimum/MAXimum power offset value in dB. 128 Example(s) CONT:MODE POW OUTP:OFFS -5.000 DB OUTP:OFFS? Returns: -5.000000E+000 See Also :INPut[1..n]:OFFSet? :OUTPut[1..n]:OFFSet :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:POWer Description This command sets the absolute output power to a specific value. The valid range of values depends on the type of instrument, the configuration, the current wavelength, and the input power. This value is used only when the POWer control mode is active. At *RST, the value that will be set depends on the instrument you have. Syntax :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:POWer Example(s) INP:WAV 1310 NM CONT:MODE POW OUTP:POW -15.000 DBM STAT:OPER:BIT8:COND? Keep sending the query as long as the ouput power is not reached. When output power is reached, the returned value is 0. OUTP:POW MAX STAT:OPER:BIT8:COND? Keep sending the query as long as the ouput power is not reached. When output power is reached, the returned value is 0. See Also 130 INPut[1..n]:ATTenuation OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:POWer? Description This query returns a value indicating either the current or the minimum/maximum absolute power value. At *RST, the value that will be set is device-dependent. Syntax :OUTPut[1..n]:POWer?[MAXimum| MINimum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:POWer? Response(s) Power: The response data syntax for is defined as a element. The response represents either the current or the MINimum/MAXimum absolute power value, in dBm. 132 Example(s) INP:WAV 1310 NM CONT:MODE POW OUTP:POW -15.000 DBM OUTP:POW? Returns -1.500000E+001 See Also :OUTPut[1..n]:ALC[:STATe]? :OUTPut[1..n]:DTOlerance? :OUTPut[1..n]:POWer :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:REFerence Description This command sets a power reference value for the current wavelength. When the instrument is used in REFerence mode, the power is relative to this reference value. This command will have no effect when the instrument is used in Absolute or X + B mode. This value is used only when the POWer control mode is active. At *RST, the value that will be set depends on the instrument you have. Syntax :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:REFerence DEFault allows the instrument to select a value for the parameter. The parameter represents the new power reference value. 134 Example(s) INP:WAV 1310 NM CONT:MODE POW OUTP:ALC:STAT OFF OUTP:APM ABS OUTP:OFFS 0.000 DB OUTP:RPOW -15.000 DBM OUTP:APM REF OUTP:RPOW? Returns: 0.000000E+000 OUTP:REF? Returns: -1.500000E+001 OUTP:REF -10.000 OUTP:RPOW? Returns: -5.000000E+000 See Also :INPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:REFerence? Description This query returns either the current or the minimum/maximum output power reference value. At *RST, the value that will be set depends on the instrument you have. Syntax :OUTPut[1..n]:REFerence?[MAXimum| MINimum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:REFerence? Response(s) Reference: The response data syntax for is defined as a element. The response represents either the current or the MINimum/MAXimum power reference value in dBm. 136 Example(s) INP:WAV 1310 NM CONT:MODE POW OUTP:APM REF OUTP:REF 12.345 DBM OUTP:REF? Returns: 1.234500E+001 See Also :INPut[1..n]:REFerence :OUTPut[1..n]:APMode :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:RPOWer Description This command sets the relative power to a specific value. The valid range of values depends on the type of instrument, the configuration, and the input power. This value is used only when the POWer control mode is active. At *RST, the value that will be set depends on the instrument you have. Syntax :OUTPut[1..
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:RPOWer a) In ABSolute mode, = absolute power + power offset value. b) In Reference mode, = absolute power – power reference value + power offset value. c) In X+B mode (dBm), = absolute power + correction factor (wavelength-specific) + power offset value. Example(s) INP:WAV 1310 NM CONT:MODE POW OUTP:APM ABS OUTP:OFFS -10.500 DB OUTP:RPOW -40.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:RPOWer? Description This query returns a value indicating either the current or the minimum/maximum relative power value. At *RST, the value that will be set depends on the instrument you have. Syntax :OUTPut[1..n]:RPOWer?[MAXimum|MINi mum|DEFault] Parameter(s) Parameter 1: The program data syntax for the first parameter is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n]:RPOWer? a) In ABSOLUTE mode, = absolute power + power offset value. b) In REREFENCE mode, = absolute power – power reference value + power offset value. c) In XB (X+B) mode, = absolute power + correction factor (wavelength-specific) + power offset value. 140 Example(s) CONT:MODE POW OUTP:APM ABS OUTP:RPOW -40.00 dBm OUTP:OFFS 0.0 OUTP:RPOW? Returns -4.000000E+001 OUTP:OFFS 2.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n][:STATe] Description This command controls the state of the instrument's shutter (open or closed). At *RST, the state of the shutter is set to off (closed). Syntax :OUTPut[1..n][:STATe] Parameter(s) ShutterState: The program data syntax for is defined as a element. The special forms ON and OFF are accepted on input for increased readability.
SCPI Command Reference Product-Specific Commands—Description :OUTPut[1..n][:STATe]? Description This query returns the state of the instrument's shutter. At *RST, the state of the shutter is set to off (closed). Syntax :OUTPut[1..n][:STATe]? Parameter(s) None Response Syntax Response(s) ShutterState: The response data syntax for is defined as a element. The represents the current shutters state.
SCPI Command Reference Product-Specific Commands—Description :READ[1..n][:SCALar]:POWer:DC? Description This query returns the power measured at the instrument's input port. This command is an event and has no associated *RST condition or query form. Syntax :READ[1..n][:SCALar]:POWer:DC? Parameter(s) None Response Syntax Response(s) PowerMeasurement: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :SENSe[1..n]:CORRection:COLLect: ZERO Description This command performs an offset nulling on the internal power meter. This command is an event and has no associated *RST condition or query form. 144 Syntax :SENSe[1..n]:CORRection:COLLect:ZERO Parameter(s) None Example(s) STAT? Must return READY SENS:CORR:COLL:ZERO STAT:OPER:BIT10:COND? Keep resending the query as long as the operation is not complete (returned value is not 0).
SCPI Command Reference Product-Specific Commands—Description :SNUMber? Description This query returns a value indicating the instrument's serial number This command is an event and has no associated *RST condition or query form. Syntax :SNUMber? Parameter(s) None Response Syntax Response(s) SerialNumber: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :STATus? Description This query returns a value indicating the status of the attenuator. This command is an event and has no associated *RST condition or query form. Syntax :STATus? Parameter(s) None Response Syntax Response(s) Status: The response data syntax for is defined as a element.
SCPI Command Reference Product-Specific Commands—Description :STATus:OPERation:BIT:CONDition? Description This query returns the state of a specific bit in the OPERation register set. The , ("bit ") indicates for which bit the information must be retrieved in the :STATus:OPERation status register. The value must be a number from 8 to 12. At *RST, the value that will be set depends on the instrument you have.
SCPI Command Reference Product-Specific Commands—Description :STATus:OPERation:BIT:CONDition? Bit <9>: When the returned value is 1, the instrument’s mechanism is being repositioned at its home position (CALibration[1..n]:ZERO). Bit <10>: When the returned value is 1, the nulling of the offsets on the internal power meter is in progress. 148 Example(s) STAT:OPER:BIT8:COND? See Also CALibration[1..n]:ZERO SENSe[1..
SCPI Command Reference Product-Specific Commands—Description :STATus:QUEStionable:BIT: CONDition? Description This query returns the state of a specific bit in the QUEStionable register set. The , ("bit ") indicates for which bit the information must be retrieved in the :STATus:QUEStionable status register. The value must be a number from 9 to 12. At *RST, the value that will be set depends on the instrument you have.
SCPI Command Reference Product-Specific Commands—Description :STATus:QUEStionable:BIT: CONDition? Bit <10>: When the returned value is 1, the operation temperature is outside the recommended operation temperature range as indicated in the instrument’s specifications. 150 Example(s) STAT:QUES:BIT9:COND? See Also :CALibration[1..
Index Index A About function tab ..................................... 79 Absolute display mode ........................................... 6 start time mode ..................................... 35 after-sales service ........................................ 78 application contacting EXFO support from .............. 79 contacting technical support from ........ 79 exiting ................................................... 20 multimodule ............................................
Index display mode Absolute .................................................. 6 Reference................................................. 6 X+B ......................................................... 6 display, data................................................ 17 display, selecting a display mode ................ 30 drift tolerance ............................................. 27 E electronic offsets, eliminating ..................... 48 eliminating offsets/dark current ..................
Index module front panel description ............................ 1 insertion ................................................ 11 models and options ................................. 1 monitoring ............................................ 59 removal ................................................. 11 status..................................................... 18 module information firmware version number ...................... 79 module identification number ............... 79 serial number.............
Index saving a sequence file ................................. 43 saving configuration ................................... 44 sequence adding and inserting steps .................... 36 creation ................................................. 35 file management ................................... 42 number of repetitions............................ 35 opening a file ........................................ 42 running a............................................... 50 saving a file ......................
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