Features: Industrial grade RS485 4 channel hub with isolation ensures long distance data transmission in harsh environments, featuring and repeater functions. Equipped with 4 isolated ports, wide 7 36V input , DIN mountable design, and LED indicators for seamless integration into automation systems. Designed for industrial engineers, solution , and integrators managing multi device networks in manufacturing or smart infrastructure projects. Optimizes communication stability in factory automation lines, energy monitoring stations, and building control panels where electromagnetic is prevalent. Combines ABS/metal construction with isolation technology to withstand extreme voltages while maintaining compatibility across industrial equipment. Specifications: []: ABS, PCB, Metal [Product Size]: 121x72x34mm [Product Weight]: 150 [Color]: Black [Supply ]: 7V~36V [ Type]: RS485 [Expand ]: 4 [Communication rate]: 300bps~460800bps rate [Supported Points]: Each RS485 port supports up to 32 [Communication Distance]: 1200m (9600bps) The high the communication rate, the shorter , the high the communication rate, the shorter . [Working ]: RS485 two-wire (A, B), half- transmission Package Includes: RS4854 channel HUB hub communication module, power adapter, screwdriver, packaging box note: Please allow 1-2cm errors due to manual measurement.