sentences:  Due to the software architecture these solutions offer higher speed than conventional hardware based data diodes.In 2018, Siemens Mobility released an industrial grade unidirectional gateway solution in which the data diode, Data Capture Unit, uses electromagnetic induction and new chip design to achieve an EBA safety assessment, guaranteeing secure connectivity of new and existing safety critical systems up to Safety integrity level (SIL) 4 to enable secure IoT and provide data analytics and other cloud hosted digital services.The US Naval Research Laboratory (NRL) has developed its own unidirectional network called the Network Pump.