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Technical Expertise
Copyright © 2009-2023 Teledyne LeCroy Xena ApS, Denmark
This technical note explains in detail how Freya tests the link training process to help you optimize the performance of 112G SerDes devices.
It covers: presets, coefficient values and step sizes, link training, Xena’s LT algorithm, how to test the performance of a DUT’s LT, algorithm, FIR filter, the relation between emphasis and tap coefficients, & coefficient settings in Freya.
FreyaCompact ANLT QSFP-DD | FreyaCompact ANLT OSFP | Freya-800G-4S-1P (shown above) | Freya-800G-4S-1P-OSFP | |
Interfaces Port x Speed | QSFP-DD800 1x800GE 2x400GE 4x200GE 8x100GE 8x50GE & QSFP112 | OSFP 1x800GE 2x400GE 4x200GE 8x100GE 8x50GE | QSFP-DD800 1x800GE 2x400GE 4x200GE 8x100GE 8x50GE & QSFP112 | OSFP 1x800GE 2x400GE 4x200GE 8x100GE 8x50GE |
ValkyrieCompact | Included | Included | ✓ | ✓ |
ValkyrieBay | N/A | N/A | ✓ can only be installed in the Val-C12-2400G chassis | ✓ can only be installed in the Val-C12-2400G chassis |
… for this technology
“Xena’s 800 GbE TGA solutions are unrivaled in the market. The solutions’ high flexibility and ability to accommodate varied use cases with multiple interface categories and options also make them resilient to future competition.”
Navdeep Saboo, Industry Analyst