<b>TRB</b> is a series of cellular IoT gateways designed for advanced industrial solutions, where a single device requires connectivity. Depending on the model, TRB devices come with either an Ethernet port, RS232, RS485, an Input/Output connector block or the combination of all. | <b>TRB</b> is a series of cellular IoT gateways designed for advanced industrial solutions, where a single device requires connectivity. Depending on the model, TRB devices come with either an Ethernet port, RS232, RS485, an Input/Output connector block or the combination of all. |