A clear, less than -75 dBM, 4G signal is available at the EV Charging Stations. And/or a strong and accessible Wi-Fi signal.
Both EV Station and EV Driver can interact with the Backend Software, without interference.
Hub / Satellite. Static Load Management:
The EVBox products have a Hub /Satellite capability, to keep the electrical load (Amps) of the EV Charging Stations under a Maximum system limit.
This 'Static Limit' is programmed into the Hub unit, and communicated to the Satellite units (up to 20 in a group) via a CAT6 cable wired in a daisy-chain configuration between the units..
Dynamic Load Management
If a Dynamic Load Limit is required, then we connect a Current Transformer (CT) around the incoming mains cable, as well as any other significant load, and communicate the measurement back to the Backend Smart Charge software.
Smart Charge will calculate the available electrical system capacity and ramp the EV Chargers up or down accordingly to satisfy the EVs charging at that time.
No 4G or Wi-Fi, but Ethernet available:
For the scenario when a 4G or Wi-Fi signal are not available, but you do have access to an ethernet connection.
We recommend the installation Teltonika RUTX0 router. The EV Station is set up to connect securely and directly. A dedicated (just access to the Smart Charge App) Hotspot is set up for the EV Drivers to interact with the Stations.