Teltonika TRB255000000. Product colour: Grey. LED indicators: Power. Safety: IEC 62368-1:2014. EN 50385:2017. EN 62232:2017. Management protocols: SNMP. Supported network protocols: TCP. UDP. IPv4. IPv6. ICMP. NTP. DNS. HTTP. HTTPS. FTP. SMTP. SSL v3. TLS. ARP. PPP (planned)..... Ethernet LAN data rates: 10.100 Mbit/s. Networking standards: IEEE 802.3. IEEE 802.3u. Authentication method: Pre-shared key. digital certificates. X.509 certificates. Serial interface type: RS-232/485