Lantronix 1-Port Serial (RS232/ RS422/ RS485) to Ethernet Industrial Device Server supporting Modbus (TCP; ASCII; RTU) - Modbus TCP to Modbus RTU/Modbus ASCII Conversion; Extended Temperature (-40 to +70 C); Wall Mountable; Rail Mountable; One DB-25 Serial Port; One 10/100 Mbps Fast Ethernet RJ-45 PortLANTRONIX DEVICE NETWORKING