Slim rugged industrial-grade port-powered RS232 to RS485 converter ^^ 300 to 115.2K Baud operation (auto-sensing & self-adjusting) ^^ Supports multi-drop RS485 networks (up to 128 nodes) ^^ Built-in selectable 120 terminator for system reliability and easy installation ^^ Built-in 600W surge protection, 15kV static protection and circuit protection