Measurement system and measurement method

A measurement system inspecting an optical transmission line configured by connecting a plurality of optical cables, each of which includes a plurality of optical fibers, wherein the optical transmission line includes a plurality of optical fiber lines configured by connecting the plurality of optical fibers in the plurality of optical cables, the measurement system comprising:

• a first measurement device configured to be disposed at a first end of the optical transmission line;
• and
• a second measurement device configured to be disposed at a second end of the optical transmission line,
• wherein the first measurement device and the second measurement device perform a first measurement to inspect whether the optical cable is misconnected, and a second measurement to inspect the plurality of optical fiber lines in a case where it is determined that there is no misconnection in the first measurement,
• wherein the first measurement device includes
• a first light source configured to output testing light, and
• a first optical switch configured to switch an optical fiber through which the testing light is incident among a plurality of optical fibers of a first optical cable located at the first end of the optical transmission line,
• wherein the second measurement device includes
• a power meter configured to measure an intensity of light, and
• a second optical switch configured to switch an optical fiber optically connected to the power meter among a plurality of optical fibers of a second optical cable located at the second end of the optical transmission line, and
• in the first measurement, the first measurement device emits the testing light to a first optical fiber among the plurality of optical fibers of the first optical cable, and the second measurement device measures an intensity of the testing light which is output from a second optical fiber corresponding to the first optical fiber among the plurality of optical fibers of the second optical cable.