Public GitHub Catalog Discovered Sep 26, 2026

rbcggl6113 / Fiber-patch-cord-catagory

Fiber patch cord at different transmission mediacan be classified ascommon silicon-based optical fiber single-mode, multimode patch cord, there areother transmission media such as plastics and other fiber patch cord; Accordingto the connector, the patch cord can be classified as FC patch cord, SC patchcord, ST patch cord, LC patch cord, MTRJ patch cord, MPO patch cord, MU patchcord, SMA patch cord, FDDI patch cord, E2000 patch cord DIN4 patch cord, D4patch cord, etc. Common ones are FC-FC、FC-SC、FC-LC、FC-ST、SC-SCand SC-ST patch cord, etcSingle-mode Fiber：Universally, fiber patch cord indicated by yellowcolor, connector and protective sleeve blue; longer transmission distance. Multi-mode Fiber：Generally orange, some with gray, connector andprotection applied beige or black; transmission distance is shorter. www.youfibercable.com

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rbcggl6113/The-application-of-fiber-patch-cord

Fiber optical patchcord products are widely applied to: communications room, FTTH, LAN, fiberoptic sensors, fiber optic communication systems, fiber optic connectorstransmission equipment, defense combat readiness, etc.. Applied to the cabletelevision network, telecommunication network, computer fiber optic networksand optical test equipment. Subdivided down mainly used in several ways.1,optical fibercommunication system2,OFC Optical Access Network3,fiber optics data transmission4,Opticalfiber CATV5,LAN6,Testequipment7,Fiber optic sensorsWaysof Fiber polishing“/”Behindthat fiber optic connectors sectional process, grinding way. “PC”Themost widely used applications in the telecommunications equipment operators,the connector section is flat. ST、DIN 、FDDI。“SC”indicates pigtail connector Model SC connectorindustry transmission equipment the sidelight interface generally with SCconnector, the SC connector engineering plastics, high temperature, not easilyoxidized advantages;ODF the sidelightinterfaces generally use FC connector, FC metal joints but ODF does not have ahigh temperature problem, at the same time, the number of metal connectorpluggable than plastic and more maintenance ODF pigtail more than light boardpigtails.The other common connector Model: ST, DIN, FDDI. PCindicates that the optical fiber connector-sectional process, PC is the mostprevalent. Broadcasting and early CATV APC Model. Pigtail head angled end, theslope normally invisible, can improve the quality of the TV signal, the mainreason is the TV signal is analog optical modulation, when the connectorcoupling surface is perpendicular to the reflected light along the originalpath back. As the non-uniform distribution of the refractive index of fiberwill once again return to the coupling surface at this time although the energyis very small, but the analog signal can not completely eliminate the noise, sothe equivalent on a clear signal superimposed on a weak signal with a delay.Performance ghosting on the screen. The pigtails headband inclination allowsthe reflected light returns along the original path. General digital signalgenerally do not have this problem. Thereis also a process of UPC, its attenuation than the PC is small,generally have special needs equipment enamel plate generally FC / UPC. Foreignmanufacturers the ODF of internal patchcord with FC / UPC, improve the ODFdevice itself targets. When using, please pay attention to below1,Opticalfiber in use, do not over-bending and circling, this will increase theattenuation of light during transmission.2,Thewavelength of the optical transceiver module of the both ends of the opticalfiber jumper must be consistent, which means that both ends of the fiber mustbe the same wavelength of light modules, simple method for distinguishingbetween the color of the optical module to be consistent.3,Afterthe use of the fiber optic jumper sets of fiber optic connectors protected,dust and oil will damage the fiber coupling must use protection. www.youfibercable.com

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rbcggl6113/The-working-thory-of-Optical-Transmitter--Receiver

The most important optical components in opticaltransmitter is semiconductor laser, in fact, it is a laser diode (Laser Diode,LD), of course, do not use the laser diode, but the use of semiconductor lightemitting diode (Light Emitting Diode, LED).1310nm optical transmitters generally usedirect modulation (VSB - Amplitude modulation, VSB-AM), its function is toconvert electrical signals into optical signals, the injected laser power toachieve it through an external circuit. It is set to the bias circuit toprovide the best bias power supply for the laser bias current, laser poweroutput automatic control circuit, to ensure the stability of the output opticalpower, should be designed optical power and laser temperature, such asmicrocomputer automatic control of the optical transmitter working state. Lasers are widely used as the opticaloscillator (mamely, light-emitting devices), it is to rely on the energy stateof the laser medium material itself into the interaction with light. To make the laser work, there must be acertain size of the current, have a certain relationship between the currentsize and light intensity, light intensity of a sharp increase when increasingthe current, this already can make the laser work, If continue to increase thethreshold current, it will form the output of the saturated zone. Thesaturation region current reaches a certain value, it will make the decline inthe quality of the transmission signal or even damage the laser diode. n termsof the optical fiber transmission power required, in the linear region severalMW of output power to meet the requirements of long-distance transmission ofsignals and information. The quality of light transmission In addition to thelight intensity the amount of spectrum and noise. Multi-wavelength spectrum ofhigh-quality analog signal transmission is not suitable, even with the thesinglemode way to work, its luminous lines width, the narrower the width of thelight waves become more pure, the more temporal coherence,good coherence oflight waves. The good coherence of light waves without using lenses and otherdevices will converge to a small point of light, but also more suitable forfiber optic incident. The optical receiver’s main component isoptical detector which is of high sensitivity photodiode (PIN), photodiodephotoelectric effect of semiconductors to complete the detection of the opticalsignal, the optical signal to restore the RF television signal, then the RFsignalqualified RF signal amplification, and the AGC level control output afterprocessing for network distribution. The main technologies are C/N\ C/CTB\ C/CSO. Thesethree indicators are all determined by the performance of the photoelectricconversion module. In the case of the same optical power input, convert theoutput RF level there are various sizes, high conversion efficiency ofphotovoltaic modules, its output level is high, the indicators of the C / Nvalue, and vice versa.C / N value indicators deteriorated. While the C / CSO,C, / CTB linearity of the two technical indicators by the photovoltaic modules,high-quality photovoltaic modules in the same C / CSO, C / CTB indicators, thereceived power allows a wider range.www.youfibercable.com

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rbcggl6113/The-basic-theory-of-optical-signals-in-optical-fiber-transmission

It’s a new technology that using lightwavetransmission of Television signals and data in the late 20thcentury. And its emergence makes the world’s IT industry have a rapid development,now Optica transmission technology is developing fast which is beyond people’simagine pace, its speed improved for 100 times compared with it 10 years ago,another 100 times will be gained in the future. With the continuous developmentof fiber optic transmission technology, in optical domain, it can be applied inmultiplexing, demultiplexing, routing, stwiching, the network can takeadvantage of the huge fiber bandwidth resourses, increase network capacity andto achieve “ transparent” transmission of a variety of business.. Optical transmission system is made up of Opticaltransmission, Optical receiver, Optic fiber cables and other components. The Optical transmission technology is in the shape of the opticalsignal transmission between sender and recipient.The work for optical transmission television signal is toprocess among optical transmitter, optic fiber cables and optical receiver: Theoptical transmitter in the center room to transform the input RF televisionsignals into optical signals, by the electrical / optical converter(Electric-Optical Transducer, E / O) to complete, and transformation into theoptical signal received by the optical fiber transmission orientation device(opticalreceiver) to receive the optical receiver to transform the opticalsignal obtained from the fiber to restore into electrical signals.Therefore, the rationale of the optical transmission signal is the wholeprocess of electricity / light and optical / electrical conversion, also knownas the optical link.Now light transmission is using light intensity modulation.Such as the so-called coherent light of laser light device issued by aphase-coherent, so take the luminous intensity of the overall changemodulation, which uses the output optical power corresponding to the electrical/ optical converter input signal current changes linearly with changesinfeatures. In the optical / electrical converter (Optical-Electric Transducer, the O/ E), the output is proportional to the input optical signal intensity of thecurrent, the output current waveform of the optical / electrical converter andtherefore the electrical / optical converter input current waveform similar,reaching the purpose of signal transmission. So, how do optic fiber cablesorient the optical signal? The fiber optic cable system is a cylindrical fiber,by fiber cylinder and a cladding composed of quartz glass material. Claddingplays a role in the light tightly enclosed in the fiber to protect the core,and enhance the strength of the fiber itself, while the function of fiber is totransfer optical signal.Although the core and the cladding ofquartz glass materials from production, but in the production of both dopedcomposition, resulting in a refractive index of different sizes (1.463 ~ 1.467core cladding1.45 to 1.46) and, of course, related to the different materialsused. When the laser emission of the light source into the core, the incidentlight to the cladding interface, as long as the angle of incidence greater thanthe critical angle, will produce total internal reflection within the core, theleakage light does not reach all parts of the cladding, so that togetherintothe optical signal within the core will be uninterrupted spread untiloriented optical receiver. The procedure is the theory that optical signal tranfers in optical fiber cable.www.youfibercable.com

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rbcggl6113/FTTH-equipment

Now ONU equipment is using in FTTH. The main fiber comes to machineroom, connects with the Fiber Switch, then distributes to Floor wiring box. Floor wiringbox is actually an optical splitter.Until here, the practice of welding do traditional fiber opticcable is also a traditional cable. Users use the FTTH fiber from opticalsplitter,commonly known as theflat cable, very slender. Please see the details from the pictures. Indoorpanel and connectors with dedicated fiber optic panel and cold joints,the Interface is SC type. This cold joint is differentfrom tranditional cold joint, one side with SC fiber optic connectors,Ends are pre-ground, inside it there is short fiber( this cannot be dismantled,or it willnot be used). Peel the FTTH fiber, in general, there are two fibers(red andblue), taking out one fiber, peel and cut it according to the specific length( You can find the detailsin Splice instruction, commonly use Optical fiber Cleaver). End into the theSplice behind the hole(In the hole there is a fiber-matching liquid, oily), usespecial tools to compress into tight line.TheSplice external interface is an SC adapter outside the hole. Now specificpractices have several Splice installation method slightly different, can notbe detailed.In use, there is a single ONU terminalequipment through a single fiber and fiber-optic jumper access to the outsidefollowed by television and Internet. www.youfibercable.com

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rbcggl6113 / Fiber-patch-cord-catagory

About this discovery

More from rbcggl6113

rbcggl6113/The-application-of-fiber-patch-cord

rbcggl6113/The-working-thory-of-Optical-Transmitter--Receiver

rbcggl6113/The-basic-theory-of-optical-signals-in-optical-fiber-transmission

rbcggl6113/FTTH-equipment

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