MPO Patchcord end-face inspection video

End surface contamination is the main cause of fiber failure.

Dust, debris, and scratches can cause insertion loss and reflection, which can cause optical transmission to be suppressed and the transceiver to be damaged.

Fiber loss testing and OTDR testing can find this problem, but in general, contaminants in the connecting part will cause fiber testing to take time and the test is not accurate.

Therefore, to ensure that the end surface is clean, the fiber performance can meet the standard requirements