While there are many different fiber optic cable tests the most common version is an insertion loss test also known as an attenuation jumper or connectivity test.
Fiber loss tester.
Short fiber optic premises cabling networks are generally tested in three ways connector inspection cleaning with a microscope insertion loss testing with a light source and power meter or optical loss test set and polarity data meaning that the routing of fibers is confirmed so that when connecting equipment the tech can identify fiber pairs for transmit and receive.
Generally multimode fiber is tested at 850 nm and optionally at 1300 nm with led sources.
Polarity testing generally can be done with a visual fault locator to confirm that fibers are connected per the.
This one ended fiber test method can be used as a fiber optic tester to quantitatively analyze the loss as well as pinpointing the loss locations during installation maintenance and troubleshooting.
This test requires a special testing kit and protective eyewear but it will help you diagnose problems with the cable s connectivity power and reliability.
Singlemode fiber is tested at 1310 nm and optionally at 1550 nm with laser sources.