Channel Insertion Loss
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 |