... advanced features such as such as flexible operation mode, TCP/UDP multicasting, telnet COM port control protocol support (RFC2217 ... TCP, IP, UDP, Telnet, DHCP, ICMP, HTTPEnbeddedNucleus ManagementSerial Console, Telnet Console, Web Management,Firmware Upgradeable LED PowerInput Voltage: 12VDC EnvironmentOperating Temperature: ... 8* 6 * 2 cm Weight 0.3KG Warranty3 Years TCP/IP Serial Device Server