| 摘要 |
<p>A time synchronous method for Synchronous Digital Hierarchy(SDH) includes the following steps: the host node transmits the synchronous time information to the slave node by the section overhead; the slave node adjusts its own time to time synchronization according to the synchronous time information carried by the received section overhead. A time synchronous system, a host node and a slave node are provided in the present invention. By the present invention, adjusting the finger of the branch will have no effect on the synchronous time information, and the coding signal of the synchronous time information will not bring the phase changed in the process of transmission, so as to improve the precision of time synchronization.</p> |
