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rbcggl6113

Discovered public repositories for rbcggl6113 in the GitHub catalog.

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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-Cable-And-Copper-Cable-Television-And-Also-The-Differences

Ningbo Youxin Optic-Electronic Technology Co., Ltd (Brand: YOUXIN) located in the Ningbo National Hi-tech Zone, is a professional optical network products and technical services provider. We are committed to providing customers around the world to provide comprehensive products, the latest technology and professional services to help customers to build high-quality network platform, combined with the actual needs of customers, and providing individualized to meet customer demand for a comprehensive solution . With the advancement of technology, there were many inventions and discoveries. The newest one has long been that of soluble fiber optic cables, which have gained far more prominence in the sector compared to copper cables. These cables are broadly employed in workplaces or residential areas. study the create up forward to understand the differences between Fiber Cable and copper cable: About Copper cable television and Fiber Cable Copper cables transmit info via electric signals. It has long been employed like a speaker technique wire, phone wire, pc cable television cable etc for more than many years now. Fiber Cable comprises of plastic material or cyrstal glass strands to transmit info or info digitally using the utilization of gentle instead of electricity. around the other hand, copper cable television encompasses of the one thread of copper. The size within the cable television varies is dependent upon its purpose. Sometimes, the cables are protected using the help of the covering recognized as braiding. The distinction between copper cable television and soluble fiber optic lies here since the latter cannot transmit electricity but recognized for delivering substantial theoretical performance. Difference between Copper cable television and Fiber Cable The significant distinction between copper cable television and Fiber Cable is their numerous resistance versus interface. Copper cable television is fairly weak versus signal interface that arrives from microwave or cell phones. With utilization of soluble fiber optic cable, you are free from all these problems. Moreover, copper cables are affordable and suitable for all your house requirements. soluble fiber optic cables can transmit info to prolonged distances and far more swiftly compared to copper cables. Moreover, this cable television has less excess fat and also a smaller diameter producing it significantly much better than its counterpart. Furthermore, these soluble fiber optic cables require less power and so are inflammable. Copper cables can be electromagnetically tapped whereas Fiber Cables are not easy for being tapped not having interruption in the signal. Fiber Cable help in multi-channel transmission although the use of the one line. Therefore, this cable television finds broad app in wiring of home theatre models and is also as well pricey than copper cabling. But the added advantage of utilizing the soluble fiber optical cables are which they provide increased bandwidth and so are easy for being set up than copper cables. soluble fiber optical cables possess the capability to hold signs that include millions of megabits or terabits every next as in comparison to copper cables, which could hold 2.5 megabit every second. Also, soluble fiber optic cables provides protection and less attenuation percentage but calls for minimal maintenance. LANs (Local place network) also use soluble fiber optics in the backbone and copper cables for your desktop.www.youfibercable.com

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rbcggl6113/Indoor-cable-structure-and-welding-considerations

Physical structure:Indoor optical fiber cable is formed by the optical fiber(optical transmission carrier) after a certain process.Indoor Fiber Optic Cable optical fiber (fiberglass) as thinas a hair and plastic protective casing and plastic sheath, and metals such asgold, silver, copper and aluminum in the fiber optic cable, usually norecycling value.The indoor cable a certain number ofoptical fiber in accordance with certain cable core, outsourcing sheath, andsome coated outer sheath for optical signal transmission of a communicationline.SpliceNotes:A. Note the cablestripping knife depth. Cable outer sheath stripping key master jacket cutterinfeed depth fiber cut, it will easily occur. In actual operation, should edgerotation sheath cutter at the same time observe the incision, if we saw a whitepolyester tape, you should stop into the knife, remove the cutter. This step isa skilled process, required much practice to master the infeed depth.B.fixed core beam tube fiber optic cable stripping. Cable stripping the cablefixing the cable connector box, stripping the core beam tube, do all thepreparatory work before the fiber splicing.It should be noted at this time1)core beam pipe can not be twisted. Before fixed cable, attention must the corebeam tube location, reinforcing member passing through the fixing screws, thestrengthening of the following items must be filled beam pipe, can not be thecore beam tube, the beam tubes of the core must be in the reinforcing memberinto the optical fiber the accommodating tray ipsilateral, can not be twistedin the reinforcing member. Reinforcement If the pressure in the beam tube ofthe core, the core of the force of the beam tube deformation caused by the lossof too much fiber core beam tube will occur due to chronic stress fracture,left hidden to the project.2) to strengthen thelength of the piece to the right. Determined after the position of the corebeam tube can be fixed fiber optic cable. Cable fixed must not loose the fiberin the location of the connector box, to avoid due to the movement of the cableposition and lead to increased fiber loss or fiber cut problem. The fixing ofthe cable is divided into the remaining portion of the reinforcing member isfixed and cable fixation. The strengthening member fixed to pay attention toits length is too long, the fit of the connector box; too short, less than therole of the fixed fiber optic cable. Usually, when the shear reinforcementmember, should make a fixed cable splint considerable length with the distancebetween the screws of fixing the reinforcing member to the stay. The remainingportion of the cable fixed in the reinforcing member is fixed, with the screwtightening strap, which is firmly fixed in the fiber optic cable at the inletof the connector box.3.) The core beam pipe stripping to the right length. Fixedfiber optic cable, stripping the core beam tube. Long the length of thestripping, contact to the optical fiber heat-shrinkable tube placing groove,will damage the remainder of the disc fiber fiber; stripping length is tooshort, the core bundle tubes are fixed, the fixed clamp will be stuck on thefiber, and easy to damage the optical fiber . Accordingly, it will generally beopen stripping to two fixed bayonet appropriate, without causing damage to thefiber force can be well fixed to the beam tube in the length of the core. Fixedpawl can not card too tight, otherwise the the core beam tube fiber willincrease due to power loss, the time length of the fiber will fracture, leavingthe engineering hidden.C. fiber splice. Fiber connection directly related tothe quality and life of the project, the key lies in the preparation of thefiber end face. Fiber end face is smooth, no glitches or defects, weldingmachine well received confirmation, and can make the joints meet theengineering requirements, the fiber end face substandard welding machinerefused to work, or take out the splice loss, not in accordance withrequirements. In the process of production of fiber end face, stripping out thefiber coating, wire stripper and perpendicular to the fiber axis, wire stripperscratching Fibre; fiber is cut, the operation must be strictly in accordancewith the statutes, the use of the end face cutting knife to do the cuttinglength of the quasi-fast action, hard clever, to ensure that the optical fiberis its breaking, but not crushed; take the fiber, it is necessary to ensurethat the fiber does not touch any object to avoid end face bruised, to do so outof the end face is smooth, with a pass. The welding machine is the keyequipment for fiber splicing, is also a high level of precision and expensiveequipment. Must be strictly in accordance with the statutes in the course ofoperations, or may cause significant losses. Of particular note is theoperating procedures of the welding machine, heat shrink tubing length settingsshould be consistent and requirements.D. I protection of fiber optic splice fiber, it is necessaryto shrink tube protection of the fiber, but also stay disk I fiber.You should focus on:1 The optical fiberin the process of disc fiber disc fiber bend radius is not too small, generallynot less than 4 mm. Bend radius is too small, and likely to cause refractionloss is too large and the dispersion increases. A long time, the fiber cutphenomenon may also occur.2) when the discfiber, note the direction of the fiber distortions generally inverted8 shaped, be careful not to wring Fibre, the plate after fiber allbelow the into the asylum disk baffle to avoid package damage optical fiber.E. connector boxsealed cable connector box seal is very important in practical engineering.Because the surface of the optical fiber connector box water easily producemicro-cracks, the long time the fiber will fracture, and the connector box andis of directly buried way underground majority, so must do the sealing of theconnector box. The sealing of the connector box, the cable and connector box,the sealing of the two parts in the up and down between the cover of theconnector box. During fiber optic splice closure seal, the first seal at thecable sheath polished outer sheath with gauze on vertical fiber optic axialpolished, integrated more closely to the cable and sealing tape, sealing better. The seal between the upper and lower cover of the connector box, mainly Notesealing tape to prevent the seal groove in the connector box, tighten thescrews, leaving no gap evenly. www.youfibercable.com

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rbcggl6113/Use-of-Optical-fiber-cable

Optical fiber cable is mainly madeup of light-guide fiber(as thin as a hair), theprotective plastic casing and plastic sheath. Inside the cable, there is no Gold, silver, copper and aluminum, generally no recoveryvalue. The fiber optic cableis a certain amount of optical fiber cable according to a certain heartoutsourcing jacket, and some coated layer of protection to an optical signaltransmission lines of communication. Namely: the cable by the fiber (opticaltransmission vector) formed after a certain process. The cable is the main transfer tool fortoday's information society InformationNetwork. If the Internetcalled information superhighway, Then, the fiber-optic network isthe cornerstone of the information highway - fiber-optic network is thephysical routing of the Internet. Once a cable is damaged and blocked in thedirection of the information superhighway will come to destruction.Through the optical transmission of information, information other than theaddition to the normal telephone, telegraph, fax, transmit large amounts oftelevision signals, bank transfer, stock market, a moment can not beinterrupted. At present, the transmission of long-distance telecommunicationcables by the PDH to SDH transmission rate by the original 140MB / S to 2.5GB /S, 4 x 2.5GB / S, 16 × 2.5GB / s or even higher, that is,said core one pair canbe opened 30 000 120 000 480 000 or to the development of more telephonechannels. Such a large transmissioncapacity, fiber optic cable to block not only caused huge losses to thetelecommunications sector, but due to poor communication, will give the massesthe inconvenience. For example, a computer user can not access, the stockmarket can not be known, bank exchange can not be processed, people from otherplaces can not deposit and withdraw money, all kinds of information can not betransmitted. In remote mountainous areas, once the fiber optic cable isinterrupted, it will make the county and even fiber optic cable along theseveral counties in the communication on the isolation, to be an isolated island.Losses caused to the military authorities and the people is immeasurable. www.youfibercable.com

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rbcggl6113/China-Telecom-plans-to-take-over-the-parent-company-of-CDMA-assets-with-more-than-1200-billion-RMB

According to two of YOUXIN company relevant staff's words,counted by total market share , China's third largest telecommunications provider, China Telecom (00728.HK) will announce the plans to acquire the parent company held by the CDMA network later this month, the price of materials is slightly higher than the 120 billion yuan of book value of the network.China Telecom declares that they will seek to cope with the acquisition by debt financing ,will not consider the issue of new shares on Financing.China Telecom Chairman Wang Xiaochu had previously said publicly that China Telecom listed company completed the acquisition of the CDMA assets of the parent company before the end of the year.Now China Telecom is operating CDMA mobile communications by network lease. As of the end of last year, the company's total mobile subscribers 126 million, became the world's largest CDMA operatorsBy this news, China Telecom in the afternoon after the opening climb rise, as of 13:40, the stock was up 0.76 percent at HK $ 3.99.www.youfibercable.com

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