CCS EVCC using AR7420
Overview
Charging via CCS DC Fast Charge requires Powerline Communication (PLC). The TP-Link TL-PA4010 (discontinued, but widely available used) is an inexpensive home PLC unit that is designed to use a residence's mains wiring (power lines) as a communication medium for ethernet. It can be repurposed to be used as a CCS EV Communications Controller (EVCC)[1]. Additional resources have been compiled by uhi22[2].
TL-PA4010
The TL-PA4010 utilizes the Qualcomm Atheros QCA7420 PLC comm IC. Examples can be purchased via eBay etc. for well under USD$20 (Apr2023). Variants include single-PCB versions as well as two-PCB, which are used when the unit provides a pass-through mains connnector. Both variants utilize the same PLC IC and adapt well for CCS.
Setting up a CCS Charging Station
Starting point: [3]