Well honestly buddy I don’t think it makes a difference just try it out and see ... plus you have the 5G setup or package? Do you even need an Xpol rather send it my wayI was gifted an Xpol-2. I'd like to use it on a Rain 5g Huawei (LTE CPE B818-2634G Cat19) router. I have 2 SMA to ts9 pigtail adapters. How does one know which way around the cable gets plugged in? Does it matter?