DS90UB954-Q1: Need cable suggestion for 953/954 linking...

Dear Sirs,

My customer found their cable cannot work well on DS90UB953/954, but the ALP Margin analysis is passed.

Here is the ALP screen capture and cable spec. they used.

Please help to input your comments if their cable is OK or not? What parameters need to pay attention to?

Why reason ALP margin analysis can pass but fail in real case usage?

Thanks.