| 摘要 |
PURPOSE:To execute the bidirectional transmission and reception by controlling the timing of a burst signal so that it is allowed that a burst signal transmitted from one side and a burst signal transmitted from the other side exist simultaneously on a single transmission line for connecting a main transmission line and a sub-transmission line. CONSTITUTION:When a receiving burst timing detecting part 27 of a main transmission line 11 detects a fact that the reception of a transmitting burst from a sub-transmission line 12 is in an inhibited area, it is instructed to change the transmission timing of the sub-transmission line 12, to a transmitting burst timing instructing part 28, and the transmitting burst timing instructing part 28 adds change information of the transmission timing to the transmitting burst from the main transmission line 11 and sends it out to a transmission line 13. A transmitting burst timing instruction detecting part 31 of the sub-transmission line 12 gives an instruction so as to execute a change from the previous timing T1, to a transmitting burst timing adjusting part 32. |
