BL-875 is a device from Brainboxes, a specialist manufacturer of serial communication and networking devices. The BL-875 is an advanced serial and Ethernet device server designed for industrial applications. It is designed to easily integrate digital devices into modern Ethernet networks and provides powerful, reliable and secure access to them. The BL-875 features 4 serial ports, a 4 port Ethernet switch and a single USB port. It supports all major industrial and commercial communication protocols and is capable of serial to Ethernet and Ethernet to serial conversion. It also includes various features that help manage serial port-to-Ethernet settings, such as console access, port transparency, and operating mode settings. With its robust design, numerous connectivity options and powerful features, the BL-875 is the perfect choice for industrial applications that require reliable and secure communication over long distances.