x9240 wifi modbus tcp/ip radio ethernet modem radio ethernet x9240 modems enable access to any serial equipment from windows, unix & linux computers connected to your wireless tcp/ip network. the x9240 radio ethernet mode......x9240 wifi modbus tcp/ip radio ethernet modem radio ethernet x9240 modems enable access to any serial equipment from windows, unix & linux computers connected to your wireless tcp/ip network. the x9240 radio ethernet modem also enables communication between two distant serial equipments through a network, or directly with a peer to peer connection (ad-hoc mode). the x9240 even allows you to build a wireless serial modbus to modbus/tcp gateway