A special purpose modem has been designed to fill the interface requirements peculiar to RCA's DatawayTmk hotel/motel data management system. The modem interface operates on dedicated telephone quality wiring over distances up to 4000 feet using frequency shift keying. A data rate of 2880 bits per second is achieved through the interface. This report discussed the requirements of the interface and details the worst case design of the modem transmitter and receiver sections. The approach used relies heavily upon the use of digital logic circuitry in the modulation and demodulation of the FSK signals.
Petrasko, Brian E.
Master of Science (M.S.)
College of Engineering
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Masters Thesis (Open Access)
Schulte, William Lester, "A Special Purpose Modem Design" (1974). Retrospective Theses and Dissertations. 128.