DATA TRANSMISSION SYSTEM

摘要

A data transmission system has a plurality of transmission modules connected to a single cable in a multidrop manner. The system features an ability to check the transmission state at the level of individual transmission modules through use of a proper code notation (typically, Manchester code). The system treats a specific module with proper signals lasting at the same level for more than a given time (except cable outputs) as having a faulty condition and causes the transmission state to halt, thus preventing only such a faulty module or modules from transmitting signals and avoiding breakdown of the entire system.