SERIAL BUS TYPE FORM RECOGNIZING AND ALARMING DEVICE SUPPORTING HIERARCHICAL STRUCTURE

摘要

PURPOSE: A serial bus type form recognizing and alarming device supporting a hierarchical structure is provided to increase recognition form kinds and failed state collections as supporting the hierarchical structure, and to duplex form recognition by exactly perceiving a data path failure, thereby improving reliability. CONSTITUTION: The first transmitters(201) report self board IDs and board failed state information through the first serial buses(211). The second transmitters(210) collect the transmitted board IDs and the failed state information, report the collected information through the second serial bus(212), and transmit self IDs. A recognizer(220) collects the transmitted board IDs and the failed state information, confirms forms and states of each PBA(Printed circuit Board Assembly)(200), and reports the collected information to a terminal(230). When the recognizer(220) calls the board IDs and the failed state information, the second transmitters(210) connect the first serial buses(211) with the second serial bus(212), and the first transmitters(201) transmit the information to the recognizer(220).