Keysight Technologies N4917CPCA User Manual
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Keysight Technologies N4917CPCA User Manual

Keysight Technologies N4917CPCA User Manual

Optical receiver stress test for cpri fronthaul networks
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Keysight N4917CPCA
Optical Receiver Stress Test
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User Guide

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Summary of Contents for Keysight Technologies N4917CPCA

  • Page 1 Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 2: Safety Notices

    CHANTABILITY AND FITNESS FOR A PAR- the exclusive authority by which the U.S. TICULAR PURPOSE. KEYSIGHT SHALL NOT government may use, modify, distribute, or BE LIABLE FOR ERRORS OR FOR INCIDEN- Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 3: Table Of Contents

    Signal Generator for Sinusoidal Interference Signal Generator for System Clock Lightwave Measurement System DCA-X Oscilloscope DCA-M Oscilloscope Clock Recovery Equipment Configuration Recommended Setup using DCA-M Recommended Setup using DCA-X Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 4 Set Result file Parameter Details Running the Jitter Conformance Test Jitter Performance Test Set Result file Parameter Details Running the Jitter Performance Test Fully Automated Jitter Tolerance Testing Index Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 5: Overview

    Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide Overview Optical Receiver Stress Test Solution for CPRI Fronthaul Networks — At a Glance System Description...

  • Page 6: Optical Receiver Stress Test Solution For Cpri Fronthaul Networks - At A Glance

    CPRI Fronthaul environment that are compliant with the following standards: Test Name Reference Standard 10GBASE-LR/ER/SR IEEE 802.3 2018 Clause 52 40GBASE-LR4/ER4 IEEE 802.3 2018 Clause 87 100GBASE-LR4/ER4 IEEE 802.3 2018 Clause 88 CPRI Specification V7.0 Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 7: System Description

    BERT to generate electrical signal • an electrical-optical converter that modulates the optical signal from a fixed or tunable laser • a digital sampling oscilloscope required for calibration of the stressed Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 8 (random, BUJ and sinusoidal timing jitter, ISI and sinusoidal amplitude interference) at the data signal output. It uses a combination of built-in stress sources along with an external generator. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 9 Additionally CPRI fronthaul networks generally run at slightly different line rates, e.g. CPRI option 10 bit rate is 24.33024 Gb/s instead of 25.78125 Gb/s. The N4917CPCA lets the user adjust the bit rate prior to a stressed eye calibration. Once you achieve the calibrated stressed eye, proceed to test an actual device (DUT).
  • Page 10 Overview Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 11: System Requirements For N4917Cpca

    Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide System Requirements For N4917CPCA Hardware and Software Requirements / 12 Supported Equipment / 14 Equipment Configuration / 18...

  • Page 12: Hardware And Software Requirements

    M8070A version 5.1 or later • M8070B version 6.0 or later N1010A FlexDCA Remote Access System • A.06.02 or later PC Interfaces • • Instrument Firmware Requirements M8020A J-BERT Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 13 • M8070A/B System Software as specified earlier 86100D DCA-X • FlexDCA version A.06.02 or later 8164B LMS • Ver.V5.25 or later 81490A/81491A Ref Tx • Ver.5.01 or later Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 14: Supported Equipment

    E8257D PSG Analog Signal Generator up to 67 GHz or • N5173B EXG X-series Microwave Analog Signal Generator up to 40 GHz or • N5183B MXG X-series Microwave Analog Signal Generator up to 40 GHz or Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 15: Lightwave Measurement System

    • 81490A-E09 Reference Transmitter • 81490A-135 Reference Transmitter • 81490A-E10 Reference Transmitter • 81490A-E03 Reference Transmitter • 81490A-E06 Reference Transmitter • 81491A-135 Reference Transmitter • 81491A-085 Reference Transmitter Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 16: Dca-X Oscilloscope

    Clock Recovery • N1077A-216-SMS Clock Recovery 50 Mbd - 16 Gbd • N1077A-232-SMS Clock Recovery 50 Mbd - 32 Gbd • N1078A-216-S50 Clock Recovery 125 Mbd - 16 Gbd Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 17 System Requirements for N4917CPCA • N1078A-225-S50 Clock Recovery 25 - 29 Gbd • N1078A-232-S50 Clock Recovery 125 Mbd - 32 Gbd • N1078A-264-S50 Clock Recovery 125 Mbd - 64 Gbd Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 18: Equipment Configuration

    The N4917CPCA Optical Receiver Stress Test recommended configurations are described below. For assistance with other variants of equipment configuration, contact your local Keysight technical support. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 19: Recommended Setup Using Dca-M

    System Requirements for N4917CPCA Recommended Setup using DCA-M Connect the equipment and cabling as shown in Figure Figure 2 Optical Receiver Stress Test Calibration with DCA-M Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 20: Recommended Setup Using Dca-X

    System Requirements for N4917CPCA Recommended Setup using DCA-X Connect the equipment and cabling as shown in Figure Figure 3 Optical Receiver Stress Test Calibration with DCA-X Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 21 8157xA • using an external tunable or fixed wavelength laser • using LAN connections to the pulse function generator and LMS mainframe Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 22 System Requirements for N4917CPCA Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 23: Concepts And Features Of N4917Cpca Software

    Keysight N4917CPCA Optical Receiver Stress Test User Guide Concepts and Features of N4917CPCA Software Software concept and flow of Optical Receiver Test / 24 Parameter files / 30...

  • Page 24: Software Concept And Flow Of Optical Receiver Test

    Jitter Conformance Test and the Jitter Performance Test. Reference Result file Stressed Eye Jitter Conformance Jitter Performance Measurement Test Test Figure 5 Using the Stressed Eye Calibration Results as reference Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 25: Software Functions And Features

    GUI prior to running the Stressed Eye Calibration. Stressed Eye Calibration This feature of the N4917CPCA software creates a stressed eye, based on the applicable standards, for stressed receiver sensitivity testing. Table 4 lists the setting and measurement parameters for Stressed Eye Calibration.
  • Page 26 Bounded uncorrelated jitter amplitude (UIpp) Bounded uncorrelated jitter PRBS rate (Gb/s) Bounded uncorrelated jitter polynomial Bounded uncorrelated jitter filter (MHz) Bit Rate (Gb/s) DCA Reference Receiver BW De-Emphasis cursors (dB) Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 27 As a prerequisite, you must run the Stressed Eye Calibration prior to running the Jitter Conformance Test. Table 2 lists the Setting and Measurement Parameters for Jitter Conformance Test: Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 28 As a prerequisite, you must run the Stressed Eye Calibration prior to running the Jitter Performance Test. Table 3 lists the Setting and Measurement Parameters for Jitter Performance Test: Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 29 SJ stop frequency (kHz) SJ number of frequency points Setting Parameters SJ amplitude (UI) Optical power (dBm) Data Polarity User entered BER Measurement Parameters User entered pass/fail (GO/NoGO) Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 30: Parameter Files

    Parameter files. There are sub-folders for each supported standard: • 10GBASE • 40GBASE • 100GBASE Each sub-folder contains default parameters for each data lane/ wavelength/ reach. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 31: Stressed Receiver Sensitivity Specifications

    Concepts and Features of N4917CPCA Software Stressed Receiver Sensitivity Specifications For reference, Table 4 lists the salient conditions required for stressed receiver sensitivity test. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 32 1311 1311 Lane L3 Nominal Wavelength 1309.14 1309.14 1331 1331 Stressed receiver sensitivity, OMA -6.8 -17.9 -9.6 -16.8 -10.3 -11.3 -7.5 Aggressor lane OMA -1.3 -13.4 -2.1 -9.8 Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 33: Example Cpri Parameter File

    ERDelta[dB], 0.25 according to standard. ERAdj, True InitialVECPTgt[dB], InitialVECPDelta[dB], InitialVECPAdj, True VECPTgt[dB], VECPDelta[dB], VECPAdj, True J2Tgt[UIpp], J2Delta[UIpp], 0.01 J2Adj, True J9Tgt[UIpp], 0.47 J9Delta[UIpp], 0.04 J9Adj, True FinalOMA[dBm], -6.8 Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 34 Sinusoidal interference input gain DCA_offset[dB], Offset for DCA average power measurement J2SignalType, J2 stressor signal PJ2Freq[MHz], 100.7 Frequency of 2nd periodic jitter PJ2AmpDef[UIpp], Starting value of PJ2 amplitude Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 35 1 = let DCA automatically set reference receiver bandwidth to ~ 75% of data bit rate RefRcvrBw[GHz], 19.34 DCA reference receiver bandwidth Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 36 Concepts and Features of N4917CPCA Software Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 37: Using The N4917Cpca Software

    Keysight N4917CPCA Optical Receiver Stress Test User Guide Using the N4917CPCA Software Starting the System Software / 38 Main GUI / 48 Stressed Eye Calibration / 50 Jitter Conformance Test / 67 Jitter Performance Test / 73 Fully Automated Jitter Tolerance Testing...

  • Page 38: Starting The System Software

    To launch the N4917CPCA Test Solution software, click Start. From the Start menu, click All Programs>Keysight N4917CPCA>Keysight N4917CPCA. The main window of the N4917CPCA software is displayed (see Figure Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 39: Selecting A Standard For Optical Receiver Stress Test

    Selecting a Standard for Optical Receiver Stress Test The N4917CPCA software supports different standards for optical receiver stress testing. Select the required standard from the Mode Selection drop-down list. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 40: Connecting To Equipment

    Figure 7 N4917CPCA Mode Selection Connecting to Equipment From the Setting menu select System Connection Check to enter the remote control addresses for each instrument to be controlled. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 41 Using the N4917CPCA Software Figure 8 N4917CPCA System Connection Check Instruments may need to be connected or discovered with Keysight IO NOTE Libraries Connection Expert before running the N4917CPCA Software. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 42 If either "w/o control" (i.e. manual control of instrument) or "not use" is selected then the contents of the VISA address box are not used and it can be left blank. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 43 Start button to test the connections. Connection to each instrument will be verified and either shown as a pass or fail with error information. Figure 10 Successful System Connection Check Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 44: System Performance Check

    Using the N4917CPCA Software System Performance Check Prior to running the N4917CPCA Test Solution software for the first time, or whenever equipment is re-configured, it is recommended to verify the intrinsic system performance. The System Performance Check ensures that all connections are correct and that the basic system performance is sufficient before running a stressed eye calibration.
  • Page 45 40GBASE/10GBASE configurations usually 0 to -0.5 dB of Post-cursor 1 is sufficient. Select the appropriate de-emphasis values and click the Set button to send to the hardware; observe the resulting optical waveform on the DCA. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 46 J9 results than the J2 results, since the J9 parameter is most sensitive to the addition of the other eye impairments. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 47 In the example shown below, the J2 margin: 300 mUI - J2 (mUI) [76 mUI] is less than the J9 margin: 470 mUI - J9 (mUI) [160 mUI]. Figure 13 Results of a System Performance Check Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 48: Main Gui

    Eye, Jitter Conformance and Jitter Performance—that define the functions performed by the software. Switch tabs to access each function. Figure 14 Parameter settings and Results area on main window Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 49 Under each tab, you will commonly find that the left side of the window is an area to set parameters for measurements and the right side is an area that displays information and measurements results in the end. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 50: Stressed Eye Calibration

    Using the N4917CPCA Software Stressed Eye Calibration Set Parameter file and Result file Figure 15 Setting Parameter and Result file locations Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 51 The choice between PJ2 sinusoidal or RJ random jitter and BUJ, as well as the bit rate and DCA reference receiver bandwidth, can all be defined in the parameter file. There are default parameter files for each optical lane Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 52 25.78125 Gb/s or 18.25 GHz for 24.33024 Gb/s. If Ref Rcvr BW Coupling is set to OFF, then initially, the value from the last loaded parameter file will be used, and the user can edit this value in the N4917CPCA GUI prior to starting a stressed eye calibration.

  • Page 53: Parameter Details

    For the 10GBASE standards, the selection is RJ or BUJ as there is no PJ2 NOTE component in the stressed eye for 10GBASE standards. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 54 Using the N4917CPCA Software Figure 18 Adjustment Parameters (PJ2) Figure 19 Adjustment Parameters (BUJ) Although interdependent, Table 5 indicates which adjustment parameter has the most effect on each measurement item. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 55 BUJ amplitude RJ amplitude Figure 20 Other Parameters (PJ2) Figure 21 Other Parameters (BUJ) Generally, there is no need to make any changes to the remaining parameters. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 56 Additionally, you can select the BUJ Polynomial and Filter from this dialog. Figure 23 Selecting the signal kind and BUJ parameters BUJ amplitude and BUJ data rate can be edited in the main window. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 57 Figure 25 Selecting bit rate DCA Reference Receiver Bandwidth: Select Ref Rcvr BW Coupling ON or OFF from the Setting menu. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 58 The value shown in the box may be updated shortly after a stressed eye calibration is started to reflect the automatically set DCA Reference Receiver Bandwidth. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 59: Running The Stressed Eye Calibration

    Using the N4917CPCA Software Running the Stressed Eye calibration Click Start(S) to commence the Stressed Eye calibration. Figure 28 Main window Results area (PJ2) Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 60 Using the N4917CPCA Software Figure 29 Main window Results area (BUJ) Figure 30 Measurement results Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 61 During the stressed eye calibration, current values of adjustment parameters are also shown on the GUI. When the calibration has completed, the final values of the adjustment parameters are displayed, as shown in Figure 31 Figure Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 62 Stressed eye calibration status messages During the stressed eye calibration, the lower part of the results area shows status messages and progress of the calibration, as shown in Figure Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 63: Oma Setting For Dut Measurement

    When a successful stressed eye calibration is achieved, the optical attenuator is adjusted to set the OMA to the level specified for DUT measurement and the data pattern is changed to PRBS31. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 64 Using the N4917CPCA Software Figure 35 Main window after Stressed Eye Calibration is complete (PJ2) Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 65 Using the N4917CPCA Software Figure 36 Main window after Stressed Eye Calibration is complete (BUJ) Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 66: Testing A Cpri Interface

    CPRI radio equipment lane under test, and either BER or Clock frequency stability and noise measurements are performed. Figure 37 Example CPRI setup for running a stressed receiver sensitivity testing on a Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 67: Jitter Conformance Test

    The Jitter Conformance Test routine sets up the jitter frequency and amplitude for each test point. You must enter the BER value and make a judgment of whether the result is a pass (GO) or fail (NoGO). Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 68: Set Result File

    The N4917CPCA Test Solution software automatically loads parameters from the most recent Stressed Eye Calibration. Click the Set file button and specify a Results file. Default location for the results files is C:\Users\Public\Public Documents\N4917CPCA\ Result\ Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 69: Parameter Details

    .csv format, consists of a simple list of SJ frequency and amplitude values as shown in Table Table 6 An example of Manual mode jitter frequency/amplitude list Frequency (kHz) Amplitude (UI) 1000 3000 10000 30000 100000 300000 0.15 Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 70: Running The Jitter Conformance Test

    For each SJ frequency/amplitude test point, a dialog box appears where you must enter the BER value, read from the DUT, and decide on selecting either GO or NoGO for the test point. See Figure Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 71 Figure 42 GO/NoGO dialog box with BER and judgment entered Click Next to proceed to the next SJ test point, or click Exit to abort the Jitter Conformance Test. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 72 Using the N4917CPCA Software Results of the Jitter Conformance test are saved in the specified Results file. Figure 43 Jitter Conformance window after the test is complete Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 73: Jitter Performance Test

    BER result and make a judgment of whether the result is a pass (GO) or fail (NoGO). Figure 44 Jitter Performance Test Window Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 74: Set Result File

    Stressed Eye Calibration. Click the Set file button and specify a Results file. Default location for the Results files is C:\Users\Public\Public Documents\N4917CPCA\ Result\ Parameter Details Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 75: Running The Jitter Performance Test

    Click Start(S) to commence the Jitter Performance Measurement. For each SJ frequency test point, a dialog box appears where you must enter the desired SJ amplitude value. See Figure Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 76 Click Next. A dialog box appears where you must enter the BER value, read from the DUT, and decide on selecting either GO or NoGO for the test point. Figure 48 GO/NoGO Dialog Box for Enter SJ Amplitude Dialog Box Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 77 Next Freq to proceed to the next SJ frequency. Figure 50 Enter new SJ Amplitude or proceed to the next SJ Frequency Dialog Results of the Jitter Performance test are saved in the specified Results file. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 78 Using the N4917CPCA Software Figure 51 Jitter Performance window after the test is complete Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 79: Fully Automated Jitter Tolerance Testing

    DUT. It has several additional features such as a choice of search algorithm, user definable BER depth, and so on. Figure 52 Jitter Tolerance Measurement System Results within M8070A software Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 80 Using the N4917CPCA Software For more information on the M8070A/B Jitter Tolerance measurement capabilities, refer to M8070A/B System Software for M8000 Series of BER Test Solutions User Guide. Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...

  • Page 81: Index

    Start(S), Starting values, electrical-optical converter, target stressed eye parameters, File Format Parameter File, Frequency List file, 69, J-BERT M8020A High-Performance BERT system, Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 82 Index Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 83 Keysight N4917CPCA Optical Receiver Stress Test for CPRI Fronthaul Networks User Guide...
  • Page 84 This information is subject to change without notice. © Keysight Technologies 2017, 2019 Edition 2.0, March 2019 www.keysight.com...

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