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Application Notes
Abstract
Today’s insatiable demand for internet bandwidth has created the hyperscale data center.
Hyperscale networks can leverage technology architecture to improve and scale appropriately as more demand is added to the system. This scalability allows the network to provide and add more resources to the system that make up a bigger distributed computing network. The design of Chip-to-Module (C2M) channels within the hyperscale physical layer require multiple engineering disciplines that fuse together to create a comprehensive workflow according to IEEE 802.3 Standard Working Group. These channels must routinely perform up to 800 Gb/s (8 x 100 Gb/s) within the internet infrastructure physical layer. Many hyperscale network designers are aware of the standard measurements and specifications such as insertion loss, return loss, crosstalk, impedance profile and eye diagram. However, these traditional Figures of Merit (FOM) may no longer be sufficient to ensure compliance as well as interoperability. The Channel Operating Margin (COM) is an emerging FOM that incorporates all active and passive components within the channel to allow performance trade-offs to be made by channel designers.
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