| 摘要 |
PURPOSE:To transmit a display control command to a lot of a telephone sets with display functions by providing a storage means for storing a terminal control command and a display control command dividedly to the 1st storage means for storing the display control command and the 2nd storage means for storing only the terminal control command. CONSTITUTION:A central controller (CC) 1 consists of a CC main body 11 providing, e.g., a microprocessor as a main control section, the 1st storage circuit 12 and the 2nd storage circuit 13 storing the display control command and the terminal control command. The 1st and 2nd storage circuits 12, 13 are made independent, the 2nd storage circuit 13 writes the terminal control command together with the terminal number data in the FIFO system and reads it. The 1st storage circuit 12 consists of n-set storage sections provided individually to telephone sets (TO-T1)3. The storage sections store respectively k-digit display control commands. |
