Fiber network testing

Fiber network testing

What is the correct method for fiber testing?

There are many ways to test a Fiber Optic Network. The method and a general approach with TeleSol Group are that we would make sure even before testing, we have taken the necessery steps to make the test succeed on the first go.

During the build of a fibre-optic network, we make sure any connection is scoped and cleaned (if necessary) even before the links are created. Entire networks (ISP and OSP) are being scoped. The OSP is tested through CD/PMD test. That will show you the state of your OSP. DWDM systems are being scoped and cleaned (if necessary). That way, we minimize the faults in complex networks even before testing. That is the first wave of testing and preparation.

Once all connections are made and the light changes the name of the dark fiber, we step to another group of testing and analysis.

The OTDR measures distance and loss between the two markers. This can be used for measuring the loss of a length of fiber, where the OTDR will calculate the attenuation coefficient of the fiber, or the loss of a connector or splice. We make sure that the reflection and attenuation stay within the acceptable parameters.

EtherBERT or ethernet bit error rate test is a testing method for telecommunication circuits that uses predetermined stress patterns consisting of a sequence of logical ones and zeros generated by a test pattern generator. A BERT typically consists of a test pattern generator and a receiver that can be set to the same pattern

An Optical Spectrum Analyser (or OSA) is a precision instrument designed to measure and display an optical source's power distribution over a specified wavelength span. An optical analyzer spectrum trace shows power in the vertical scale and the wavelength on the horizontal scale. It is used to determent the power alignment of all waves.

RFC 2544 is the Industry-standard service activation test for single-service Ethernet and IP (i.e. “pipe test”). The test measures key performance indicators and bandwidth profiles such as throughput, latency, packet Jitter, frame loss, and committed burst size (CBS). We would offer it on all bandwidth.

ITU-T Y. 1564 is an Ethernet service activation test methodology, which is the new ITU-T standard for turning up, installing and troubleshooting Ethernet-based services. The only standard test methodology allows for complete validation of Ethernet service-level agreements (SLAs) in a single test.

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