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Pulsar | User Manual
Installation | Connection | Calibration| Measurements
User Manual revision 1.0
multilaneinc.com

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Summary of Contents for MULTILANE Pulsar

  • Page 1 Pulsar | User Manual Installation | Connection | Calibration| Measurements User Manual revision 1.0 multilaneinc.com...
  • Page 2: Notices

    Copyright © MultiLane Inc. All rights reserved. Licensed To Avoid Fire or Personal Injury software products are owned by MultiLane Inc. or its Use Proper Power Cord. Only use the power cord specified suppliers and are protected by United States copyright for this product and certified for the country of use.
  • Page 3: Table Of Contents

    Connecting to the Instrument ................8 Connection & Mode Selection ................... 9 TDR Measurements ....................9 Time-Domain Reflectometry ..................... 10 Impedance Profile Gating Calibration ..................10 Return Loss ..........................15 Appendix 1 – Adding Pulsar to the Network ............19 multilaneinc.com...
  • Page 4: Table Of Figures

    Figure 16 Return Loss Measurement ............... 17 Figure 17 S11 Measurements ................. 17 Figure 18 Return Loss Mask ..................18 Revision Control Revision number Description Release Date 1/17/2024 4.2.5 Cerberus GUI for Pulsar Product Software The instrument includes the following software: multilaneinc.com...
  • Page 5: Minimum Pc Requirements

    If the Microsoft.NET Framework 3.5 is needed, it can be downloaded through this link: http://download.microsoft.com/download/2/0/e/20e90413-712f-438c-988e- fdaa79a8ac3d/dotnetfx35.exe. For more products updates, check the following webpage: www.multilaneinc.com/products.html Minimum PC Requirements The Windows PC properties for Pulsar’s software should meet the following specifications: Windows XP SP3 or greater ▪ Minimum 1 GB RAM ▪...
  • Page 6: List Of Acronyms

    List of Acronyms Acronym Definition Bandwidth BERT Bit Error Rate Tester Conf Configuration Device Under Test Forward Error Correction Firmware Giga Baud Gbps Gigabits per second Graphical User Interface Hardware Inter-symbol Interference JTOL Jitter Tolerance Known Good Unit Non-Return to Zero PAM4 Pulse Amplitude Modulation (4-level) Signal Integrity...
  • Page 7: Pulsar

    Pulsar Power On/Off TDR Channels Installation After downloading Cerberus setup file, select run and follow this easy step-by-step setup installation procedure: Figure 1: Setup installation procedure multilaneinc.com...
  • Page 8: Connecting To The Instrument

    Connect the power cable to the power jack of Pulsarand plug it into an AC outlet. The power cable is already included in the package accessories. ▪ Power Up Pulsar. ▪ Connect the device to the network* using a RJ45/LAN cable.
  • Page 9: Connection & Mode Selection

    Figure 3: Connection failure notification. *To add the device to the network, consult Appendix I at the end of this manual Connection & Mode Selection After connecting to the instrument by typing its IP in the appropriate text box, select the desired mode of operation and press “Configure”.
  • Page 10: Time-Domain Reflectometry

    This section will list and explain how to perform all measurements that fall under this umbrella. Time-Domain Reflectometry TDR can be used for many applications, such as to characterize the impedance of DUTs, backplanes, and other physical media, locating faults, discontinuities or breaks along a cable, cable matching, and more.
  • Page 11: Figure 6 Confirm Alignment

    ▪ Disconnect the twinax (SMPM to 2.4 mm) cable from the host and click on “Confirm”then “done”. Figure 6 Confirm Alignment ▪ Close the page to exit the calibration wizard. ▪ Plug the OSFP/QDD connector in the host. TDR Measurement ▪...
  • Page 12: Figure 7 Impedance Profile Graph

    Figure 7 Impedance profile Graph. Locating Faults & Discontinuities One popular application for TDR is locating faults and discontinuities in a physical medium. As the velocity of propagation of electromagnetic waves in vacuum is known, additional information related to the characteristics of the physical medium such as the copper cable’s velocity of propagation (VoP) allows the speed of propagation to be estimated and the distance between two points can therefore be calculated.
  • Page 13: Figure 9 Ohm Offset

    Figure 9 Ohm Offset It is also possible to add a positive or negative ohm offset to each/all channels. User defined mask Figure 10 User defined mask The user can define in the measurement section a custom mask by setting the minimum and maximum time, as well as impedance.
  • Page 14: Figure 11 Math Functions

    Math Figure 11 Math Functions A math function is included to perform (-) (+) (*) (/) operations using the selected channels. Propagation Delay Figure 12 Skew Measurements multilaneinc.com...
  • Page 15: Return Loss

    �������� − �������� Return Loss Pulsar can also be used to measure return loss. Similarly to impedance profile, Pulsar performs a TDR measurement in time domain and then converts it to the frequency domain, resulting in return loss measurements.
  • Page 16: Figure 14 Gating Setup

    Figure 14 Gating setup ▪ Apply markers at the points of difference between the main setup’s impedance profile and the other two and press “Apply Gating”. Figure 15 Markers ▪ Close the page to exit the calibration wizard. multilaneinc.com...
  • Page 17: Figure 16 Return Loss Measurement

    Return Loss Measurement Press to measure continuously or for a single capture. Figure 16 Return Loss Measurement Measurements and masks can be loaded in the software by pressing “Measurement” on the bottom right side of the page. The available measurements for return loss are loss at Nyquist and the return loss mask, for which the mask type is available for different standards that the...
  • Page 18: Figure 18 Return Loss Mask

    Figure 18 Return Loss Mask multilaneinc.com...
  • Page 19: Appendix 1 - Adding Pulsar To The Network

    Appendix 1 – Adding Pulsar to the Network To create a local network connection, please follow these steps: ▪ Create a local network connection between the laptop and Pulsar using Internet Protocol Version 4 (TCP/IPv4). o Open “Control Panel” and choose “Network and Internet”.
  • Page 20 This will be used to ping the instrument once the IP Address is changed to match that of the network. ▪ Connect the laptop directly to Pulsar using an Ethernet cable. ▪ Copy the IP Address found on the back of the unit.

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