Siemens 6DS1220-8AB is an N8-H Local Bus Interface module for the TELEPERM M/TELEPERM ME distributed control system. It functions as the local bus bridge between TELEPERM central processors (AS 230/235/388) and the 20-M Bus, providing an 8-bit data interface for real-time communication with local I/O. The unit is powered via the backplane's DC supply, is intended for cabinet installation with explicit ESD precautions, and weighs about 0.74 kg. Operating range is 0 to 55 C (32°F to 131°F) and storage range is -40 to 70 C; it originates from Germany and carries the 6DS1220-8AB part number.
