Serial bus type configuration recognition and alarm apparatus

A serial bus type configuration recognition and alarm apparatus for a system having a plurality of various boards, comprising:

• a plurality of first transmission units adapted to hold type information of the boards, for reporting board IDentifications (IDs) held by the first transmission units and board failure status information transmitted from the boards through a first serial bus;
• a second transmission unit connected to the first transmission units through a first serial bus, for collecting board IDs and board failure status information transmitted from the first transmission units, reporting these collected board IDs and the board failure status information, and transmitting an ID of the second transmission;
• and
• a recognition unit connected to the second transmission unit through a second serial bus, for collecting board IDs and board failure status information transmitted from the second transmission unit, ascertaining configuration and failure status of the boards, and reporting these collected board IDs and board failure status to a terminal;
• wherein when the recognition unit requests the board IDs and board failure status information from the first transmission units, the second transmission unit connects the first serial bus with the second serial bus and the first transmission units transmit the board IDs and board failure status information thereof to the recognition unit through the connected first and second serial buses, and when the recognition unit requests the ID of the second transmission unit from the second transmission unit, the second transmission unit transmits the corresponding ID thereof to the recognition unit through the second serial bus.