Channel insertion loss refers to the reduction in signal power due to the insertion of a device in a transmission line or optical fiber. It is typically measured in decibels (dB).
The table below outlines the channel insertion loss budget for the ConnectX-8 SuperNIC in a PCIe Gen5 architecture (32 GT/s).
The listed values are based on measured data. It is advisable to add a 0.5 dB margin to your system, as channel loss may vary.
|
Channel Loss at Gen5 |
Decibels |
|---|---|
|
Total add-in card (bump to Goldfinger) Insertion loss approved by PCI-SIG Gen5 |
9.5 dB @16GHz |
|
SuperNIC PCIe Lanes (PCORE1) |
5 dB @16GHz |
|
Passive PCIe Auxiliary Card |
2.5 dB @16GHz |
|
MCIO harness (including connectors) |
3.5 dB @16GHz |
|
SuperNIC PCIe interface, PCIe Auxiliary Card, and MCIO harness |
11 dB @16GHz |
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