If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Allen Bradley 1734-485ASC Interface Module Technical Overview (Introduction) The Allen Bradley 1734-485ASC Communication Interface Module is a compact communication interface designed to integrate RS-485 serial devices into distributed automation systems. As part of the POINT I/O pl *Your Name: *Your Email: *Your Name: *Vdcode: Submit