Sigma Serial Device Server - Ultima. Supported network protocols: TCP/IP, UDP, HTTP,DHCP, ICMP, ARP. Data transfer rate: 0.100 Gbit/s. Power requirements: DC 9-12V, 500mA. Operating temperature range (T-T): -10 - 70 °C. Certification: RoHS, FCC, CE, UL, TUV, CUL