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OTDR 980EXT show error “there are light, test stop”

I received 2 photos. One is OTDR testing with no cable, the other is connected to cable. Then test stopped with the message, means “ there are light, test stop”. Then the cable is not live cable.

The problem should be solved now. If not, contact our tech support team by email tech@firstfiber.cn

Note: if OTDR you bought is not with filter, please do not test active fiber. 

Eric Yang

Eric Yang — Senior Technical Support Engineer

Eric specializes in PON network testing, OTDR diagnostics, and optical fiber monitoring solutions at FirstFiber Technologies.
✉️ Email: tech@firstfibertech.com

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