电信级 sc-sc lc-lc sc-fc fc-lc光纤跳线，12芯束状尾纤
电信级 sc-sc lc-lc sc-fc fc-lc光纤跳线，12芯束状尾纤
“upc”的衰耗比“pc”要小，一般用于有特殊需求的设备，一些国外厂家odf架内部跳纤用的就是fc/upc，主要是为提高odf设备自身的指标。
另外，在广电和早期的catv中应用较多的是“apc”型号，其尾纤头采用了带倾角的端面，可以改善电视信号的质量，主要原因是电视信号是模拟光调制，当接头耦合面是垂直的时候，反射光沿原路径返回。由于光纤折射率分布的不均匀会再度返回耦合面，此时虽然能量很小但由于模拟信号是无法彻底消除噪声的，所以相当于在原来的清晰信号上叠加了一个带时延的微弱信号，表现在画面上就是重影。尾纤头带倾角可使反射光不沿原路径返回。一般数字信号一般不存在此问题。
“sc”表示尾纤接头型号为sc接头，业界传输设备侧光接口一般用用sc接头，sc接头是工程塑料的，具有耐高温，不容易氧化优点；odf侧光接口一般用fc接头，fc是金属接头，但odf不会有高温问题，同时金属接头的可插拔次数比塑料要多，维护odf尾纤比光板尾纤要
telecom level sc - sc lc - lc sc - fc fc - lc fiber optic jumper,12core fiber beam end
telecom level sc - sc lc - lc sc - fc fc - lc fiber optic jumper,12core fiber beam end
upc attenuation is smaller than the pc, commonly usedinequipment with special needs, some foreign manufacturers odfframeinternal jump fiber is fc/upc, mainly to improve the index oftheodf equipment itself.
in addition, in the early days of radio, film and televisionandcatv is the application of more apc model, its tail fiberheaduses the angle of end face, can improve the quality of tvsignal,the main reason is that television signals is to simulatethe lightmodulation, when the joint coupling surface is vertical,thereflected light back along the original path. because offiberrefractive index distribution non-uniform coupling surfacewillreturn again, at this time although energy is small but itisimpossible to completely eliminate noise due to the analogsignal,so the equivalent of a superimposed on the original clearsignalwith a weak signal delay, show on the picture is double. tailfibercan make the headband angle reflection not back along theoriginalpath. general digital signal are not usually presentthisproblem.
sc said tail fiber coupling model for sc connectors,opticalinterface transmission equipment industry side generally usescconnectors, sc connectors are engineering plastics, has ahightemperature resistant, not easy oxidation advantages; odf sidefcjoint is commonly used in optical interface, fc is a metaljoint,but the odf will not have a high temperature problem, at thesametime of metal joint is much larger than the number ofpluggableplastic, maintain the odf tail fiber than plate tailfiber

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慈溪市华创通信设备厂
潘先生
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