Phoenix Contact 1139012 The CHARX control modular AC charging controller features an embedded Linux system and operates in three modes: standalone, client, and server, with Ethernet interfaces for two connections and cellular communication capabilities via four 4G/2G connections. The system utilizes a modular design with a MICRO-USB type C connector and supports multiple protocols, including OCPP 1.6J, Modbus/TCP, and MQTT. It also accommodates connectable peripheral devices such as energy meters, RFID readers, DC residual current detection, and can be DIN rail mounted.