Innovation for the next generation 800G BERT | 8 Channel | 66 GBaud PAM4 & 66 Gbit NRZ | SSPRQ, PRBS13Q & PRBS31Q | IEEE802.3ck specs for Long Reach | Real Hardware FEC Analysis | Linear Optics Testing | PCIe Gen 3.0, 5.0 6.0 and 7.0 Applications | Up to 34dB Equalization The ML4079ELN is an 8-channel, 800G BERT purpose built for long reach applications including PCIe-Gen 3, 5, 6 and 7, automotive, transceiver and data center interconnect testing. The ML4079ELN features a wide range of line rate coverage, up to 34dB equalization, built-in ratio level mismatch (RLM), providing a single platform for testing up to 8x66 GBaud. The ML4079ELN includes transmitter equalization (3 or 7 taps FFE), and receiver equalization. The ML4079ELN can provide measurements for Signal-to-Noise Ratio (SNR), histogram measurements, and Real Time BER Measurements and FEC Measurements.

Introduction The ML4079ELN is a fully featured 800G BERT that can be configured for eight channels of 1-1.5Gbps; 2.55-5.9Gbps; 7.3-11Gbps; 24-32Gbps and 4166Gbps NRZ and 21.25-21.75GBaud; 26.562536GBaud and 44-66GBaud PAM4. The transmitters support all standard test patterns mandated by IEEE802.3ck stress testing and OIF such as PRBS13Q, PRBS31Q, etc. Tx can also be programed to output a user-defined pattern. The ML4079ELN supports transmitter and receiver equalization up to 34dB to overcome signal integrity impairments due to channel losses or reflections. Additionally, users can opt to programmatically...

Using ThunderBERT GUI, both instant and accumulated BER, FEC, and SER measurements can be displayed and monitored: Figure 3: ThunderBERT GUI Screenshots Showing BER Measurements Figure 4: ThunderBERT GUI Screenshots Showing SER Measurements RLM Stress Test: Inner/Outer Eye Control on PAM4 Mode: ML4079ELN supports a full Inner and Outer Eye Control Range using the ThunderBERT GUI. This feature enables the robustness testing of the transmitted signal by changing the Inner/Outer Eye settings and measuring the Level Separation Mismatch Ratio (RLM). The obtained value is compared to the IEEE 802.3...

Specifications Parameter

Mechanical Dimensions The ML4079ELN is a benchtop instrument that fits in a 19-inch 2U rack. Two ML4079ELNs arranged side by side take up one 2U slot in a rack. MultiLane also supplies the needed brackets. Note: The ML4079ELN-Lite combined with the 800X and PCIe6-7 configurations provides the full functionality and specifications of the ML4079ELN as listed in the datasheet.

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