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Ixiasoft
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Ixiasoft
CEI 28 Very Short Reach (VSR) Specifications for CFP2/CFP4/QSFP+/QSFP28/zQSFP/SMA 2.4 mm
Very short reach (VSR), short reach (SR) and long reach (LR) electrical specifications can be found in details in Common Electrical I/O (CEI) - Electrical and Jitter Interoperability agreements for 6G+ bps, 11G+ bps and 25G+ bps I/O document.
Please refer to chapter 13 of Common Electrical I/O (CEI) - Electrical and Jitter Interoperability agreements for 6G+ bps, 11G+ bps and 25G+ bps I/O for all electrical specifications for CEI-28G-VSR Very Short Reach channel/Interface. You can find the reference model and test points, return loss ( both differential and common mode) specifications for all reference points, full channel reference model and its maximum insertion loss specifications in Common Electrical I/O (CEI) - Electrical and Jitter Interoperability agreements for 6G+ bps, 11G+ bps and 25G+ bps I/O.