How do you read an OTDR test?

How do you read an OTDR test?

How to Read Your Trace. OTDR displays will show a Y and X axis. The X axis measures distance, and the Y axis measures attenuation and reflection in dB. Before running your trace, select the appropriate fiber network length, pulse width and acquisition time.

How do I open an SOR OTDR file?

Programs that open or reference SOR files

1. VeEX Fiberizer Desktop.
2. VIAVI FiberTrace.
3. Vanguard Data OTDR emulator.

What are OTDR traces?

OTDR trace is a . sor, . trc, or other format file containing a graph with the data about the measured duct. Attenuation is a characteristic showing how much power (dB or dBm) is lost at a given location (attenuation at splice, cross) or in a given section of the duct.

What is pulse in OTDR?

In an OTDR, the pulse carries the energy required to create the backreflection for link characterization. The shorter the pulse, the less energy it carries and the shorter the distance it travels due to the loss along the link (i.e., attenuation, connectors, splices, etc.).

How do I get Traceview?

Traceview is a tool that provides a graphical representations of trace logs….To open a trace log with Traceview from Android Studio, proceed as follows:

1. Start Android Device Monitor.
2. In the Android Device Monitor, select File > Open File.
3. Navigate to the . trace file you want to inspect.
4. Click Open.

How do I view TRC files online?

To open a TRC file, select File → Open → Trace File, select your Trace file, and click Open.

How long does OTDR testing take?

It typically takes at least 3 minutes for a skilled OTDR technician with high-quality equipment to obtain one trace. Printing out the trace adds another 2 to 3 minutes per fiber. In a system of only 48 fibers, this adds approximately 5 man-hours, including set-up time, to the testing procedure.

What is wavelength in OTDR testing?

OTDR users generally used the two-wavelengths provide the best balance of functionality and value. OTDR testing at 1310 nm and 1550 nm is normally sufficient to certify point-to-point or FTTx PON fibers and allows the detection of macro bends.

What is event dead zone in OTDR?

The event dead zone is the approx. minimum distance the OTDR can detect between two events. The attenuation dead zone is the approx. minimum distance required to make a loss measurement for an event.

Can dBm be positive?

Positive dBm means power greater than 1mw and negative means less than 1mw.

What is an OTDR trace?

An OTDR trace is a graphical representation of power and distance of all elements of the optical fiber. Once saved, OTDR results can be used to reference the link for future testing. When to use an OTDR? The OTDR is the single piece of test equipment needed to provide the most accurate and complete end-to-end link validation.

Is OTDR a good alternative to insertion-loss testing?

Premises cabling has short cable runs and almost never includes splices, so OTDR is poised as an alternative to insertion-loss testing with a light source and power meter—with OTDR price roughly 10 times higher than those fiber testers. How to Use an OTDR for Fiber Testing?

What is an OTDR (optical time-domain reflectometer)?

OTDR (Optical Time-Domain Reflectometer) is such a powerful test instruments for fiber optic cable testing: when used properly, it not only simplifies testing requirements, but also help to increase the reliability and value of the network. What Is an OTDR and How Does It Work?

What is the pulse width of ototdr?

OTDR test pulse width wavelength: Normally, it’s 850 nm on multimode fiber optic cable and 1,310 nm on single-mode—the shorter wavelength has more back-scatter, so the trace will be less noisy.