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Summary of Contents for Keysight N4391B
- Page 1 Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 2 The license set forth in the EULA represents MERCHANTABILITY AND FITNESS FOR A the exclusive authority by which the U.S. PARTICULAR PURPOSE. KEYSIGHT SHALL government may use, modify, distribute, or NOT BE LIABLE FOR ERRORS OR FOR Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
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Page 3: Safety Summary
Failure to comply with these precautions or with specific warnings or operating instructions in the product manuals violates safety standards of design, manufacture, and intended use of the instrument. Keysight Technologies assumes no liability for the customer's failure to comply with these requirements. Product manuals are provided with your instrument on CD-ROM and/or in printed form. -
Page 4: Compliance And Environmental Information
Product Category: With reference to the equipment types in WEEE Directive Annex I, this product is classed as a “Monitoring and Control instrumentation” product. Do not dispose in domestic household waste. To return unwanted products, contact your local Keysight office, or see www.keysight.com/environment/product/ for more information. -
Page 5: Table Of Contents
Environmental Information N4391B Shipping Contents 2 Getting Started N4391B Optical Modulation Analyzer Setup Introduction Integrating the UXRXXX4A High-Performance Oscilloscope Connecting the System Using the correct connectors Enabling and disabling the laser output Keysight N4391B Optical Modulation Analyzer Getting Started Guide... - Page 6 3 Returning the Instrument for Maintenance Returning the Instrument 4 Rack Mount Rack Mounting the N4391B 5 Regulatory Information Declaration of Conformity Compliance with German Noise Requirements Compliance with Canadian EMC Requirements Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
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Page 7: Introduction
Keysight N4391B Optical Modulation Analyzer Getting Started Guide Introduction Documentation General Safety Considerations / 16 N4391B Shipping Contents... -
Page 8: Documentation
Introduction Documentation N4391B Documentation The documentation for the Keysight N4391B Optical Modulation Analyzer consists of • The documentation for the Keysight UXR-Series oscilloscope. This documentation is supplied with the oscilloscope, including extensive online help. Refer to it for using the UXR-Series oscilloscope for modulation measurements, or for configuring the oscilloscope. -
Page 9: General Safety Considerations
The laser radiation symbol. This warning symbol is marked on products which have a laser output. The electrostatic discharge symbol. This warning symbol is marked on products which have components that can be damaged by an electrostatic discharge. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... - Page 10 To prevent electrical shock, disconnect the instrument from mains before WARNING cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 11 Failure to ensure adequate earth grounding by not using these cords may cause instrument damage. This instrument has autoranging line voltage input. Be sure the supply voltage is CAUTION within the specified range. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
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Page 12: Initial Safety Information
IEC 60825-1 we recommend that you stick the laser safety labels, in your language, onto a suitable location on the outside of the instrument where they are clearly visible to anyone using the instrument Keysight N4391B Optical Modulation Analyzer Getting Started Guide... - Page 13 • The laser module has built-in safety circuitry which will disable the optical output in the case of a fault condition. • Refer servicing only to qualified and authorized personnel. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
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Page 14: Line Power Requirements
Keysight Technologies Service Center. • Do not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... -
Page 15: Environmental Information
Directive Annex I, this product is classed as a “Monitoring and Control instrumentation” product. Do not dispose in domestic household waste. To return unwanted products, contact your local Keysight office, or see www.keysight.com/environment/product/ for more information. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... -
Page 16: N4391B Shipping Contents
Envelope-Entitlement Certificate (241.3 mm X 317.5 mm) 8121-1695 Cable-Assembly USB-Plug A TO B 4-COND 500 mm 9230-0333 Envelope-calibration certificate (241.3 mm x 317.5 mm) 9320-6654 China RoHS Addendum for Photonic Test and Measurement Products N4373-90159 Virus Information Sheet Keysight N4391B Optical Modulation Analyzer Getting Started Guide... - Page 17 Adapter-Coaxial Straight 2.92 mm Jack 2.40 mm Jack 50-Ohm 40 GHz 54932-68712 Adaptor Assembly- 1.85 Female-Female-kit of 2 8710-1765 Wrench - Torque 8lb-in, 5/16 Inch N4391-61667 RF Cable Kit 70 G N4391-60123 Assembly Testhead 70 G UXRXXXXX Scope Bandwidth under 80 GHz Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 18 N4391-60124 Assembly Testhead 110 G UXRXXXXX Scope Bandwidth 80 to 110 GHz or 59 AP Adapter accessory kit for instrument with 1 mm connectors, option N4391B-801 Part number Description 5067-1390 Adapter - 1 mm Ruggedized Female to 1 mm Female 5067-1392 Adapter - 1 mm Ruggedized Female to 1.85 mm Female...
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Page 19: Getting Started
Keysight N4391B Optical Modulation Analyzer Getting Started Guide Getting Started / 20 N4391B Optical Modulation Analyzer Setup / 27 Connecting the System / 29 Creating Your First Trace on the OMA / 33 Installing Software Components... -
Page 20: N4391B Optical Modulation Analyzer Setup
Getting Started N4391B Optical Modulation Analyzer Setup Introduction The Keysight N4391B Optical Modulation Analyzer consists of a coherent receiver unit and a high-performance oscilloscope. For the instrument to operate, the receiver unit and the oscilloscope need to be assembled according to the procedure described in this section. - Page 21 Torx T20 screwdriver and 5 screws: M4x0.7 10mm counter sink, part number 0515-2044, torque 3 Nm (26-in-lb). Mount the front bracket with 4 additional screws of the same type. Figure 1 Preparing the frame Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 22 Remove the feet from the oscilloscope. Using 4 screws: M4x0.7 8mm, part number 0515-0433, torque 3 Nm (26-in-lb), attach the frame prepared in step 2.1 to the oscilloscope. Figure 2 Preparing the oscilloscope Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 23 Figure 3 on page -23 using a Torx T15 screw driver and 2 screws: M3.5x0.6 8mm, part number 0515-1402, torque 2 Nm (17-in-lb), for each foot. Figure 3 Preparing the coherent receiver unit Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 24 0515-2044, torque 3 Nm (26-in-lb), according to Figure 4, but do not yet tighten them. After all screws are inserted, tighten them completely. Figure 4 Combining oscilloscope and coherent receiver unit Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 25 Figure 5 on page -26. Tighten with torque wrench, torque 0.4 Nm (4-in-lb). To protect the semi-rigid cables from unintended impact, mount the protective cover as shown in Figure 5 on page -26. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 26 Getting Started Figure 5 Finalizing the system Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
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Page 27: Connecting The System
Always use patchcords to connect to your DUT. This protects the connectors of CAUTION the optical modulation analyzer, by minimizing the number of connector changes. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... -
Page 28: Enabling And Disabling The Laser Output
If the Laser output is on, the green LED on the front panel of the module is lit. If the Laser output is off, the green LED on the front panel of the module is not lit. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... -
Page 29: Creating Your First Trace On The Oma
This signal has incorporated bit errors inserted into the transmitter PRBS generation. Power on the equipment. Start the Keysight 89600 VSA Software interface by double-clicking on the Keysight OMA icon ( In the Keysight 89600 VSA Software interface, select File >... - Page 30 Modulation Format list. Ensure that Polarization is set to Auto. If not, select it from the Polarization list. Smart Setup will determine the polarization automatically (single or dual) when set to Auto. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 31 11 Click on the OK button. 12 Select the Restart button ( ) in the tool bar to start the measurement. 13 You should see results similar to the following. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 32 Getting Started Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
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Page 33: Installing Software Components
You can search for updates through the VSA interface by selecting Help > About OMA then clicking on the Check for updates button. Refer to the following screen. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... -
Page 34: Downloading The Photonic Application Suite Package Manager 34
Technical Support link, select the Drivers, Firmware & Software tab, then click on the Download button to start the download process. Click on the Open button to open the zip file. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... - Page 35 Getting Started Double-click on the executable file to run the PAS Package Manager. Start the PAS Package Manager as administrator and select the OMA tab to see all possible OMA packages. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
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Page 36: Installing The Keysight N439Xa Software
After all installations have been finished, verify that the PAS Package Manager lists them with an “Installed Version”. If the installations are not listed, launch the installation of the missing package again. Likely it was interrupted by a system restart. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... -
Page 37: Returning The Instrument
Use the original packing material or comparable packing material to ship the instrument to Keysight. The optical receiver and the UXR-Series oscilloscope are two parts of one NOTE instrument. If you are returning the N4391B to Keysight support, you must return the full instrument, consisting of both parts. - Page 39 Keysight N4391B Optical Modulation Analyzer Getting Started Guide Rack Mount / 40 Rack Mounting the N4391B...
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Page 40: Rack Mounting The N4391B
Using parts from the rack mount kit (part number 1CM104A), mount a rack flange at the left and right of the optical test head. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... - Page 41 Rack Mount Using a Torx T25 screwdriver, mount the rails in the rack. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 42 Mount Kit (N4391-24104). Mount the oscilloscope in the rack according to the procedure in the UXR-Series Oscilloscope Rack Mount Kit Installation Guide (N2156-97000). Mount the oscilloscope directly above the optical modulation analyzer. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 43 Rack Mount Starting from the left, attach the semi-rigid cables very carefully. Tighten with torque wrench, torque Nm (4-in-lb). Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 44 Rack Mount To protect the semi-rigid cables from unintended impact, mount the protective cover. Keysight N4391B Optical Modulation Analyzer Getting Started Guide...
- Page 45 Keysight N4391B Optical Modulation Analyzer Getting Started Guide Regulatory Information / 46 Declaration of Conformity / 46 Compliance with German Noise Requirements / 46 Compliance with Canadian EMC Requirements...
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Page 46: Declaration Of Conformity
Per ISO 7779/ISO 3744 nach ISO 7779/ISO 3744 Compliance with Canadian EMC Requirements This ISM device complies with Canadian ICES- 001. Cet appareil ISM est conforme a la norme NMB-001 du Canada. Keysight N4391B Optical Modulation Analyzer Getting Started Guide... - Page 48 This information is subject to change without notice. © Keysight Technologies 2019 Edition 1.0, March 2019 www.keysight.com...