On Arria 10 GX Transceiver Signal Integrity FPGA board, we are trying to test the GX transceivers routed to Samtec’s High density Bulls eye connector (Part code: BQR-J-020). We got the mating cable for this connector from Samtec and the corresponding part no. is BE23S-92SPP-02-02-0300.
While testing, we found that somehow the connectivity is not getting established between the connector and the Bulls eye point of the cable. We made sure the cable is properly attached to the connector using the insertion/extraction tool.
We then tried monitoring with scope, we could see data only if we manually press the cable on to the connector.
We got the cables tested from Samtec and they found no issue with these cables.
Pl. suggest how to debug this issue.
Note: I have attached the pics of the High density Bulls eye connector and the cables.