400G BERT Production Tester | QSFP-DD, OSFP, QSFP MSA Compliant Interfaces |
  • Low cost, instrument-grade bit error rate tester optimised for high-speed data analysis of 200G/400G transceivers.
  • Cabled interface to the adapter for optimum signal integrity.
  • Adapters available are QSFP-DD, OSFP, QSFP and a host of other types upon request
  • Integrated BERT and host controller enable: - RX CTLE tuning - TX Equalisation control - Current sensing per module - Voltage sense
  • Ability to tune the bit rate in very fine steps to facilitate finding the locking margin.
  • Excellent insertion loss characteristics of the connector saver
  • Supports PRBS13Q/31Q and user-defined patterns.
  • Performs all the measurement functions of the BERT, and a QDD/OSFP/others host in terms of I2C control for configuration, monitoring and functions.
  • Features industrial components, suitable for reliability testing inside an oven over a wide temperature range.
  • Low power consumption.
  • API library, sample code and Python wrapper.

The ML4054B is a fully featured 400G BERT. It has a cabled interface to QSFP-DD, OSFP and other adapters that are at the same time connector savers and are suitable for testing in an oven and can be replaced by the customer on the fly.

This instrument facilitates production testing since no external cabling is needed. It comes in two different form factors: benchtop and low profile. The low-profile version can be directly mounted on the door of the temperature chamber, as per description below.

The GUI allows you to individually control each TX level, equalization, eye balance, pattern and coding. The user may also inject error sequences into the stream. The receiver features CTLE and FFE equalization for up to 14 dB of loss at Nyquist; it also allows advanced troubleshooting capabilities.

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