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The Basic knowledge of PON
Nov 11 , 2020
1.1 Basic principles of PON system PON (passive optical network) refers to an optical access network in which the ODN (optical distribution network) between OLT (optical line terminal) and ONU (optical network unit) all adopts passive equipment. PON is a point-to-multipoint (P2MP) optical access system, which can save fiber resources, ODN does not require power supply, user access is convenient, a...
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Optical fiber alignment of optical fiber splicing machine
Nov 20 , 2020
Using optical fiber fusion machine for optical fiber fusion is one of the mainstream methods of optical fiber field termination, so there are many kinds of optical fiber fusion machine in the market, which is dazzling. How to choose a cost-effective optical fiber fusion machine has become a headache for many skilled workers. We know that the alignment accuracy of the optical fiber fusion machine i...
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The Notes When Using OTDR
Nov 26 , 2020
1. Simple judgment of fiber quality: Under normal circumstances, the slope of the main body of the light curve (single disk or several optical cables) tested by OTDR is basically the same. If the slope of a certain section is large, it indicates that the attenuation of this section is large; if the main body of the curve is of irregular shape, the slope fluctuation is large. Bending or arcing indi...
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Precautions for Using Fusion Splicer in Winter
Dec 07 , 2020
For communication workers working outdoors, the working environment in winter is relatively harsh. Rain and snow, windy weather, and foggy weather all bring great challenges to welding. The staff is shivering in the cold outside. The fusion splicer is also prone to failure. Today, I will give you some tips for using the fusion splicer in harsh environments and the points that should be paid attent...
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Do you know optical cable identifier?
Dec 11 , 2020
Introduction Optical cable identifier instrument, is based on the principle of optical fiber interference, through optical coherent demodulation to convert the tapping vibration signal of the optical cable into visual and audio signals, so as to accurately find and identify targets in various laying methods Optical cable. The fiber optic cable survey instrument can be used not only for the mainten...
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What is the FTTx?
Dec 16 , 2020
FTTx is the abbreviation of “Fiber to the X”, which means “fiber to x”, which is a general term for various fiber-optic communication networks, where X represents the destination of the fiber-optic line. The FTTx network applications in GPON access have the following in common: The data, voice, and video signals of terminal users are sent to ONUs, where the signals are converted into Ethernet pack...
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The simple failure analysis and elimination of fusion splicer
Dec 23 , 2020
1. During the splicing process, the fusion splicer displays "fiber not found or the end face of the fiber is untidy". This is mainly caused by the surface of the optical system being contaminated. The protective glass (located under the electrode) should be cleaned with absolute alcohol, and the lens on the fiber cover should be cleaned at the same time. Wait until the alcohol is dry before procee...
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What's fiber optic pigtail?
Jan 06 , 2021
A fiber pigtail is a single, short, usually tight-buffered fiber optic cable with a factory-installed connector on one end, and un-terminated fiber on the other end, making the maintenance more conveniently. Fiber optic pigtails are used to terminated fiber optic cables via fusion splicing or mechanical splicing as shown in the picture below. The end of the pigtail is stripped and fusion spli...
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What are the main functional differences between OTDR and optical power meters?
Jan 13 , 2021
Anyone who does optical cable construction will often come into contact with optical power meter and OTDR (optical time domain reflectometer). Multi-users do not understand why it is necessary to use an optical power meter to test the optical loss after testing the OTDR. Doesn't OTDR have the function of testing fiber loss? And there are some differences in the main functions of the two devices? O...
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What are the commonly used fiber optic tools？
Jan 21 , 2021
The gradual increase in the construction and maintenance of optical cables in the optical communication industry has prompted an increase in the demand for various optical fiber tools. Common optical fiber tools on the market include optical fiber strippers, optical cable strippers, and optical cable cutting shears. The purpose of these tools is also different, are you really familiar with them? K...
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Four key factors in the purchase of Optical Power Meter
Jan 27 , 2021
There are many kinds of optical power meters, which one is suitable for us? in choosing optical power timing, we should also consider the following factors: (1) Application. Ordinary optical power meters can generally measure the absolute optical power of ordinary optical fiber links, but in some special applications, such as passive optical network (PON), coarse wavelength division multiplexing (...
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Precautions for using VFL
Feb 03 , 2021
Visual Fault Locator are also called VFL, pen-type red light sources, visible light detector, optical fiber fault detectors, optical fiber fault locators, etc. Most of them are used to detect fiber breakpoints. According to their shortest detection distance, they are divided into: 5Km, 10Km, 15Km, 20Km, 25Km, 30Km, 35Km, 40Km, etc. Driven by a constant current source, a stable red light is emitted...
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How does otdr measure breakpoints?
Feb 19 , 2021
The fiber breakpoint measurement with OTDR can be divided into three steps: parameter setting, bai data acquisition and curve analysis. Manual setting of measurement parameters includes: (1) Wavelength selection (λ): Because different wavelengths correspond to different light characteristics (including attenuation, microbending, etc.), the test wavelength generally follows the principle correspond...
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How to clean the end face of optical fiber?
Feb 24 , 2021
Pentype One-Click Fiber Cleaner is loved by many users because of its convenient use. When using, you only need to insert the optical fiber cleaner into the connector, and then gently push it inward. When you hear the "Ka Ta" sound prompt, pull out the cleaner, and the cleaning work is completed. Therefore, it can also be called a one click optical fiber end face cleaner. In order to make it ...
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The Introduce of Fiber Optic Microscope
Mar 10 , 2021
Fiber optic microscopes are used to inspect connectors to check the quality of the termination procedure and diagnose problems. A well made connector will have a clean, smooth, polished and scratch free finish. There is not be any signs ofcracks, chips or fiber not even with the ferrule front. The magnification for viewing connectors can be 30 to 400 power. Seikofire sells S620mini video optical f...
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The correct use of fiber stripper
Mar 17 , 2021
Professional tools should be used when stripping the coating layer of the optical fiber. The most typical tool is the Fiber Stripper; it can thin the plastic outer layer outside the pigtail, and it can also strip the coating layer of the optical fiber. Pay attention to: 1. When peeling off the coating layer of the optical fiber, there should be no impurities in the small holes of the fiber strippe...
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