RS-IPSG is an industrial security protocol gateway that adopts a modular design and supports 3 Ethernet ports and 2 to 4 isolated RS485 serial ports, enabling secure communication functions. The communication methods, protocols, etc. can be encrypted and filtered. Make any unauthorized data unable to pass through. The module is encapsulated in flame-retardant engineering plastic, and the circuit design has strong electromagnetic interference resistance, making it particularly suitable for the field of safety data acquisition. RS-IPSG can be programmed to define communication methods, encrypt and filter data or protocols, and different interfaces can simultaneously use different specified security protocols for communication.