Triconex 4351B Triconex 4351 B Tricon communication module [caption id="attachment_2365" align="aligncenter" width="600"] 4351B[/caption] Manufacturer: Triconex Product No.: 4351B Product type: Tricon communication module Serial port: 4 Network port: 2 Port isolation: 500 VDC Protocols: TriStation, Modbus, TCP/IP, ICMP, SNTP, TSAA (supporting IP multicast), Trimble GPS, embedded OPC server (4353 and 4354 models), peer-to-peer (UDP/IP), peer-to-peer