360 comes with an Ethernet cable which will attach directly to the AS ETH 5PXG (20ft I think) ...

You should already have an AS EC QDE adapter for both your units ...and a Ethernet cable between the 2 units ...

You will disconnect the existing Ethernet cable from one unit and attach it to the AS ETH 5PXG ...

You will need one more Ethernet cable to reach from the disconnected unit to the AS ETH 5PXG ...

The AS ETH 5PXG requires 12v power with a switch to keep the AS ETH 5PXG from drawing constant power on your battery ...

Plan the AS ETH 5PXG install to consider your existing Ethernet cable lengths ...

Rickie