How to route XCVR IO from Cyclone10GX to SFP - How to route XCVR IO from Cyclone10GX to SFP We are designing PCB based on Cyclone 10 GX device. There are total 12 channel tranceivers on this FPGA. We refer to its PCI-e demo board, howver, we found that the traces don't have AC coupling capacitors of XCVR (RX&TX) between FPGA and SFP. Do we need to add AC coupling capacitor for our board when we use fpga interconnecting with SFP? Replies: Re: How to route XCVR IO from Cyclone10GX to SFP Hi We have not hear from you and this Case is idling. It is not recommended to idle for too long. Therefore following our support policy, I have to put this case in close status. My apologies if any inconvenience cause Hence, This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you If your support experience falls below a 9 out of 10, I kindly request the opportunity to rectify it before concluding our interaction. If the issue cannot be resolved, please inform me of the cause so that I can learn from it and strive to enhance the quality of future service experiences. Regards, Wincent_Intel p/s: If any answer from the community or Intel Support is helpful, please feel free to give the best answer or rate 9/10 survey. Replies: Re: How to route XCVR IO from Cyclone10GX to SFP Hi Fvm, thanks for help to answer on behave Hi Ming Zhi, I wish to follow up with you about this case. Do you have any further questions on this matter ? Else I would like to have your permission to close this forum ticket Regards, Wincent_Intel p/s: If any answer from the community or Intel Support is helpful, please feel free to give the best answer or rate 9/10 survey. Replies: Re: How to route XCVR IO from Cyclone10GX to SFP Hi, coupling capacitors are located in SFP module by specification SFF-8431.