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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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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 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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How to Use VFL
Nov 04 , 2020
VFL is very easy to use. The steps to use a VFL are provided as following: Step One: remove the plastic connector covers from both ends of the test fiber cable. Step Two: connect the fiber optic visual fault locator one end of the fiber. Press the tester button and observe that light emanates from the other end of the fiber. This gives a simple indication of the continuity of the fiber link. Step ...
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How To Use Our Fiber Stripper CFS-3?
Oct 30 , 2020
The Operation Steps of Fiber Stripper CFS-3 1.Strip the fiber following steps 1 through 3 below. Step 1 : Insert fiber into the opening of the tool. Step 2 : Close the tool squarely around the fiber. Step 3 : Draw the tool along the fiber using thumb pressure while keeping the tool perpendicular to the fiber. 2.Clean the stripped fiber and terminate connection per connector splice or connector man...
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Cleaning of fusion splicer's microscopes (objective lenses)
Oct 23 , 2020
The fusion splicer uses the image processing system to observe the optical fiber. If the microscopic lens becomes dirty, it will affect the normal optical fiber observation, resulting in poor welding effect. Therefore, the lenses of the two microscopes should be cleaned regularly to keep the microlenses clean and tidy. The specific process is as follows: (1) turn off the power supply of the f...
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The Basic Principles of OTDR
Oct 15 , 2020
OTDR is called Optical Time Domain Reflectometer, which injects narrow light pulses into the fiber end face as a detection signal. When the light pulse propagates along the fiber, the backscattered part of Rayleigh scattering everywhere will continue to return to the incident end of the fiber. When the optical signal encounters a crack, Fresnel reflection will occur, and the back reflected light w...
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What is fiber to the home?(FTTH)
Oct 03 , 2020
What is fiber to the home (FTTH)? - Structure and components FTTH is one of the most important technologies for today and future’s networks, because not only it increases the access to bandwidth, but reduces equipment and maintenance cost while intensely improving Quality of Service. Projections specify that individual user Internet use will reach 100Mbps and will eventually go to 1Gbps. And fiber...
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What is the difference between single-mode fiber and multi-mode fiber? Which one to choose?
Sep 21 , 2020
The first is to introduce the difference between multimode fiber and single mode fiber: Multimode fiber The optical signal in multimode fiber propagates through multiple channels; it is usually recommended to be used when the distance is less than miles. The effective distance of multimode fiber from transmitter to receiver is about 5 miles. The usable follow-up is also affected by the type and qu...
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