What is the optical time domain reflectometer OTDR used for?
An Optical Time Domain Reflectometer (OTDR) is a device that tests the integrity of a fiber cable and is used for the building, certifying, maintaining, and troubleshooting fiber optic systems.
How many OTDR are there?
OTDR Types The two predominant categories are bench-top and hand-held. A bench-top OTDR is essentially a feature-rich instrument with a direct AC power source, whereas a hand-held or compact OTDR is typically a lightweight, battery-powered device intended for use in the field.
Who invented OTDR?
Using a tank of water with a pipe that ran out of one side, Babinet then shone a light into the tank, into the stream of water. An arc of light followed the water as it fell. An optical telephone system was patented in 1880 by Alexander Graham Bell.
What test capability can be done by OTDR?
The Optical Time Domain Reflectometer (OTDR) is useful for testing the integrity of fiber optic cables. It can verify splice loss, measure length and find faults. The OTDR is also commonly used to create a “picture” of fiber optic cable when it is newly installed.
What do optical time domain reflectometer OTDR displays and controls encompass?
What is true of mainframe optical time domain reflectometers (OTDR)? They are used mainly in the fiber manufacturing industry. What do OTDR displays and controls encompass? Task options, which include range, pulse width, wavelength, measuring mode, backscatter coefficient, and index of refraction.
How do you test OTDR?
Test Procedure
- Turn on OTDR and allow time to warm-up.
- Clean all connectors and mating adapters.
- Attach launch cable to OTDR. Attach receive cable (if used) to far end of cable.
- Set up test parameters on OTDR.
- Attach cable to test to end of launch cable. Attach receive cable (if used) to far end of cable.
- Acquire trace.