| 摘要 |
PROBLEM TO BE SOLVED: To provide the communication data loop preventing method of a radio transmission system capable of effectively preventing the infinite transfer loop of communication data from being formed on a signal transmission line for carrying out data communications for performing an operation such as monitoring and controlling to radio transmission units when not less than three radio transmission units are arranged in a relay section. SOLUTION: In this radio transmission system formed by constructing a network to which a plurality of radio devices are connected, a signal transmission line for carrying out data communications for performing an operation such as monitoring and controlling to radio transmission equipment is constituted, and specific information is added to the communication data, and when the communication data having the same specific information added are re- received in the radio transmission equipment on the signal transmission line, the re-received communication data are abandoned. |
