https://www.proliteautomation.com/product-page/6es7341-1bh02-0ae0-cp341-20ma-interface-tty
6ES7341-1BH02-0AE0 : CP341 20mA-Interface (TTY) | Prolite Automation
SIMATIC S7-300, CP 341 Communications processor with 20 mA interface (TTY) incl. configuration package on CD
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