Eurotherm T221 LIN/ALIN Bridge is a device that enables communication between LIN (Local Interconnect Network) and ALIN (Advanced Local Interconnect Network) segments. It supports up to 64 dedicated database or file transfer instrument-to-instrument connections per bridge and up to 15 T640s on the ALIN. The T221 also features automatic support for LIN cable redundancy, bridge redundancy, and route redundancy, ensuring reliable communication even in the event of a failure.