The Keysight N4917BSCB is an automated optical receiver stress test solution for characterizing high-performance network components. It enables compliance testing of optical transceivers and modules at 200 Gb/s, 400 Gb/s, and 800 Gb/s data rates, supporting 50 Gb/λ and 100 Gb/λ per-lane optical interfaces. The system automates calibration of stressed optical signals according to IEEE 802.3bs, IEEE 802.3cd, and IEEE 802.3db, eliminating manual calibration complexity. A unified software interface controls all instruments, streamlining test workflows across receiver sensitivity, jitter tolerance, and stress eye closure quaternary (SECQ) measurements.
– Technical Specifications
• Supported Data Rates: 200 Gb/s, 400 Gb/s, 800 Gb/s
• Optical Interfaces: 50 Gb/λ, 100 Gb/λ
• Modulation Format: PAM4
• Calibration Metrics: Outer Extinction Ratio (OER), Transmission and Dispersion Eye Closure (TDECQ), Optical Modulation Amplitude (OMA)
• Performance Measurements: Receiver sensitivity, jitter tolerance, stress eye closure quaternary (SECQ)
– Standards Compliance
IEEE 802.3bs, IEEE 802.3cd, IEEE 802.3db; 400GBASE-LR8, -FR8, -DR4; 400G-FR4 MSA; 800G-SR8; 50GBASE-FR, -LR, -SR; 100GBASE-DR; 100/200/400GBASE-SR/SR2/SR4
– Key Features
• Automated calibration of optical stressed eye with repeatable, stable performance
• Adjustable target calibration values for user-defined testing parameters
• Stress signal calibration per IEEE 802.3bs clauses 121, 122, 124, 138, 140, 167
• Automated calibration per IEEE 802.3bs/cd/db clauses 121, 122, 124, 138, 139, 140
– System Components
The N4917BSCB integrates Keysight M8040A BERT (64 Gbaud), arbitrary waveform generator, optical reference transmitter, DCA series digital sampling oscilloscope, tunable laser source, optical attenuator, and dedicated control software for unified instrument management.
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