| 摘要 |
PROBLEM TO BE SOLVED: To minimize the influence on a whole system caused by abnormal communication occurring at a part of a transmission line. SOLUTION: A plurality of air conditioning units 20, 20 are connected by a daisy chain method by using a switching hub 31 incorporated in an outdoor unit 30, and data transmissions between a centralized transmission line 10A and an inside and outside transmission line 10B are separatably connected by a gateway 32 connected with the switching hub 31. COPYRIGHT: (C)2008,JPO&INPIT |
