PURPOSE: To obtain a data transmission equipment with universality, capable of transmitting a data to plural data output terminal devices from a high function terminal device via a central controller by connecting the high function terminal device as requied.
CONSTITUTION: Data input terminal devices 30∼3n and data output terminal devices 40∼4n correspond one by one and transmit a data in time division via the central controller 1. Further, an interruption generating means 6 generating an interruption request signal to return the data only when the input data is changed is provided to the data input terminal devices 30∼3n. Moreover, the high function terminal device 5 having an address setting means 8 from which a specific address to the optional data input terminal devices 30∼3n and provided with a data input means 9, an interruption generating means 10 and a data transmission means 11 is connected to a signal line 2, and the data is transmitted in time division multiplex from the high function terminal device 5 to the optional data output terminal devices 40∼4n via the central controller 1.
AKIBA OSAMU
SAEKI TAKASHI
SUGIYAMA HAJIME
