RS232/RS485/RS422 to Ethernet converter,support TCP Server,TCP Client,UDP Uni_Cast,UDP Multi_Cast mode, ... Temperature: -40 ° C to +80 ° C (-40 ° F to 176 ° F), 5% to 95% RH (2)External structure &pin definition Ethernet interface: Standard RJ45 ... knowledge of the Ethernet For more details please visit : fourstar-dy.com Mode:FS-ETH485A,RS232/RS485/RS422 to Ethernet converter.One year warranty ...