Triconex 4353 Tricon Communication Module (TCM) in stockTCM Model 4353 Specifications General Information: Model Number: 4353 Serial Ports: Ports: 4 RS 232 RS 485 ports Connectors: DB 9 connectors Network Ports: Copper Ethernet Ports: 2, 10 100BaseT Ethernet ports, RJ 45 connectors (model 4351A and 4353) Fiber Ethernet Ports: 2, fiber optic mode Ethernet ports, MTRJ connectors with 62. 5 125 m fiber cables (model 4352A and 4354) Port Isolation: Isolation Voltage: 500 VDC Supported Protocols: TriStation