| 摘要 |
PURPOSE:To enable a single piece of station residence managing information to be inputted to an ADM. CONSTITUTION:An optical transmission line network is composed of a master station 1 and plural slave stations 2, 3 concentrically controlled by the master station 1, and also, an optical signal can be transmitted by using frame constitution capable of transmitting an overhead signal with a main signal in the optical transmission line network. The insertion means 2a of the slave station 2 attaches a first identification code on the station residence managing information to be sent from the slave station 2 to the master station 1, and it is inserted to the prescribed byte of the overhead signal, and the extraction means 2b of the slave station 2 extracts the station residence managing information on which a second identification code is attached from the station residence managing information inserted to the prescribed byte of the overhead signal in a received optical signal. Adversely, the second identification code is attached on the station residence managing information at the master station 1, and it is inserted to the prescribed byte, and the station residence managing information on which the first identification code is attached is extracted from received station residence managing information at the master station 1. |
