Extensible PROFIBUS/MPI/PPI repeater hub. A single device can be used as a repeater, and multiple devices (N pcs) can form a 2N-port hub; Communication rate: 0-1.5Mbps (or 0-12Mbps), self-adaptive; Support redundant power supply; Realize PROFIBUS/MPI/PPI bus, star and hybrid network topologies to facilitate network cabling; Transparent data transmission without delay; Bi-directional extended communication distance in line with the PROFIBUS standard; With communication indicator; 9-40VDC wide voltage isolated power supply; Power supply-RS485-RS485 completely isolated; Lightning and surge protection; Interface: terminal block in accordance with the PROFIBUS standard; Standard lead rail mounting.