CT connection over existing Cat5/6

[Technonotice]

I had originally asked if it was possible to connect the EV charger to the CT clamp via an ethernet connection via switches - i.e. indirect. On investigation it turns out that some devices have that as an option, others don't so instead of asking the question, I will use this as an info post to take some of the more popular devices and identify if you can or can't use MODBUS over ethernet.

The point being, those who are thinking of getting a charger and have options on where to install it but have limitations on the CT connection, may find this useful. For context, I have two outbuildings that both have their own Consumer Units, flat exterior walls and plenty of space next to them to park. My house has some awful render on it, and the cable would go from there to the car and be in the way of anyone walking across the front of the house to the gate I have (it's all private but could end up with someone tripping over the cable).
I would much prefer to have the charger installed on the wall of an outbuilding I have next to the drive, so the cable wouldn't cause any inconvenience, but to do this the CT connection would have to be able to support MODBUS, i.e. work over a switched network instead of directly wired back.

 

[Technonotice]

Turns out it depends on lots of things - mostly the manufacturer of the charger. Pod Solo 3S has a direct, hardwired connection to the CT clamp.
I will do a little more research and put some info up here and amend the original post.

 

[Technonotice]

Connection Type	How it works	Compatible Chargers (Examples)
Direct Connection (Analogue)	Uses the copper pairs inside a Cat5/6 cable as a long extension cord for the CT wires. No network switch involved.	Ohme (Home Pro/ePod), Zappi, Sync Energy, Wallbox
Over Switched Network (Digital)	The charger and a Smart Meter both plug into your router/switch and talk over your local LAN.	Victron (with VM-3P75CT), SMA (with Home Manager), V2C Trydan
Via an Adaptor (Bridge)	A hardware bridge (like a Modbus-to-IP gateway) converts the CT signal into a format the charger can read over Ethernet.	Rolec (with Perific LAN), Easee (via Equalizer), ABB/Schneider (via Gateway)

 

[Everest]

+ if you don't have fixed or wireless Ethernet, between those points, you could add a Powerline adapter into the comms channel to send the resulting data over a power line.