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  • Agenda
  • State of the '400G Class' Standards
  • Next Generation '800G Class' Standards
  • Next Generation '800G Class' Standards
  • Notes on Current & Next Gen DCN Standards & technologies
  • Where are we with '400G class' link turn on?
  • Output (Transmitter) Characterization Agenda
  • Patterns
  • Compliant Frequency Response (Reference Receiver)
  • CEI-112G-VSR-PAM4
  • What Changes for Optical Test as We Go From NRZ to PAM4?
  • Clock Recovery for PAM4 Designs
  • Output (Transmitter) Characterization: Optical
  • Why Not Just Adapt NRZ Methods to PAM4?
  • Why did IEEE drop the eye-mask test????
  • TDECQ
  • TDECQ measurement process (from IEEE 802.3bs)
  • TDECQ compares the SER performance of your transmitter to a virtual ideal transmitter
  • TDECQ has evolved over the development of IEEE 802.3bs (400G Ethernet) and 802.3cd (50/100G)
  • IEEE 802.3bs TDECQ
  • IEEE 802.3cd defines changes to TDECQ
  • TDECQ: Measurement Tips
  • Measurement Tips: Finding root causes for high TDECQ
  • Measurement Tips: A TDECQ example
  • Measurement Tips: "Hot spots" show areas of concern
  • Individual eye parameters are good indicators of TDECQ
  • Some struggles to correctly interpret TDECQ
  • TDECQ - what happens as OMA gets smaller?
  • Keysight Oscilloscope Solutions for Optical Test
  • Optical Demo
  • Output (Transmitter) Characterization: Key PAM4 Electrical Measurements
  • Key PAM4 Measurements for Electrical Transmitters
  • Transmitter Linearity at TP0a (IEEE)
  • Signal-to-Noise-and-Distortion Ratio (SNDR)
  • Output Jitter (J3u/J4u, JRMS, and EOJ)
  • Why did the PAM4 jitter measurement methodology change?
  • Output Jitter at TP0a
  • Measurement Tips: 12-Edge Output Jitter
  • CEI-112G-VSR (56G PAM4) - TX Test Considerations
  • Which scope should I use to characterize PAM4 signals?
  • Keysight Oscilloscope Solutions - Electrical
  • Built-in PAM4 Measurement Capability
  • Automated PAM4 Measurement Apps for Keysight Scopes
  • New TX Test Automation SW Apps for Keysight RT Scopes
  • New RX Test Automation SW Apps
  • Electrical Demo
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  • Speaker: Steve Sekel, Strategic Product Planner, BERT / Keysight Technologies
  • Speaker: Steve Sekel, Strategic Product Planner, BERT / Keysight Technologies
  • Speaker: Steve Sekel, Strategic Product Planner, BERT / Keysight Technologies
  • Speaker: Steve Sekel, Strategic Product Planner, BERT / Keysight Technologies
  • Speaker: Steve Sekel, Strategic Product Planner, BERT / Keysight Technologies
  • Speaker: Steve Sekel, Strategic Product Planner, BERT / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies
  • Speaker: Rob Sleigh / Keysight Technologies