The Phoenix Contact 1397845 is an M12MS termination plug, featuring an 8-position, A-coded design with integrated bridges between pin 2 and pin 3, as well as pin 5 and pin 6. This black termination plug is ideal for securely closing off unused ports in industrial automation systems, ensuring system integrity and preventing contamination. Although it is no longer in the product range, it remains a reliable choice for maintaining optimal performance in complex automation networks.