| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system for individually recognizing terminals whose transmission requests are awaited by a central unit while carrying out ordinary communication even when a plurality of terminals have transmission requests without causing a wait time not contributed to communication. SOLUTION: Any of indoor units 21 to 25 having a transmission request to an outdoor unit 10 by using a first frame of transmission data to be a transmission request address frame transmits the data of the first frame, to a bit location coincident with its own address of which address information is set, to the outdoor unit 10 by matching the transmission timing to any transmission start timing of any of the indoor units 21 to 25 according to the substantial polling order so as to attach its own address to the data of the first frame on a bus line received by the outdoor unit 10. COPYRIGHT: (C)2005,JPO&NCIPI |
