NorComp 37S1 is a Multi-Port Serial interface card designed for use in a wide range of industrial applications. It is designed to provide a flexible interface, allowing connection to multiple digital devices or communications networks. The 37S1 offers two RS-232/RS-422/RS-485 serial ports, capable of transferring data at speeds up to 115.2Kbps, along with two additional ports that can be configured for RS-232 or TTL signaling. The RS-485 ports support up to 2000m of cable and are capable of full-duplex communications. This allows the user to easily expand upon the number of devices they can connect to the 37S1, simplifying system setup and allowing connection to longer distances.