| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a passive optical network monitoring method and passive optical network in which each of fiber link branches of distributed sections of a passive optical distribution network can be monitored. <P>SOLUTION: The method of the present invention includes the steps of: sending a first optical monitoring signal 40 through the section at a first signal sending time by sending means 81, 34 of a first transceiver device 30, 1-9 of the passive optical network; sending a second optical monitoring signal 41-45 through the section at a second signal sending time by sending means 81, 34 of a second transceiver device 30, 1-9 of the passive optical network, wherein the sending times of the optical monitoring signals 40-45 are adjusted in such a way that the the optical monitoring signals are superimposed while traveling through the section to generate a measuring signal 52; and detecting and analyzing characteristics of at least part of the measuring signal 52 preferably by at least one of the optical monitoring signal sending transceiver devices 1-9. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
