PON SYSTEM, OLT, ONU, AND CONDUCTION CHARACTERISTIC DETERIORATION DETECTION METHOD
摘要
<p>PROBLEM TO BE SOLVED: To detect conduction characteristic deterioration.SOLUTION: An OLT 1 comprises: a test frame transmission unit 15 which generates test frames 102 having the designated number 1015 of transmission frames and transmits the test frames to an ONU 4; and a test frame reception unit 16 which receives test frames 103 from the ONU 4 and detects conduction characteristic deterioration from the number of the received test frames and the number 1015 of transmission frames. The ONU 4 comprises: a test frame reception unit 43 which receives test frames 102 from the OLT1 and detects conduction characteristic deterioration from the number of the received test frames 102 and the number 1015 of transmission frames; and a test frame transmission unit 44 which generates test frames 103 having the number 1015 of transmission frames and transmits the test frames 103 to the OLT 1.</p>
