| 摘要 |
<p>Disclosed are a data mapping method and system for an OTUk. The method includes: writing OTUk data into a data storage first in first out module according to an OTUk data valid signal and the data storage state in the data storage first in first out module; controlling the data storage first in first out module to read the OTUk data and sending the same to an OTUk overhead and data insertion module according to the frame header information about an OTUku and the data storage state and generating mapping adjustment overhead and sending the same to the OTUku overhead and data insertion module; and the OTUku overhead and data insertion module inserting the OTUk data, a mapping adjustment overhead, frame header information and multi-frame information about the OTUku at the corresponding location of an OTUku frame and generating an OTUku data frame. The present invention reduces the clock loss brought about by clock recovery, thus the number of optical port interconnections can be increased, the jitter exceeding brought about by the optical port interconnection can be reduced, and the normal communication of the OTN can be ensured.</p> |
