Jumpers and pigtails kind of very rich, it is worth noting that fiber pigtails and patch cords is not a concept. Fiber jumpers, and the main difference is pigtailed fiber pigtail connector activity only at one end, there are two active jumper connector, simply, the jumper into two can be used as a pigtail. Easy communication to the following detailed description thereof sky distinction.
First, what is the jumper and pigtail?
Jumper is a cable with a desktop computer or a device directly connected, and to facilitate the connection management apparatus, the jumper has a thick protective layer, between the terminal box and Optical used.
Only one end of the pigtail connector on one end and an optical fiber connector, welded to form the cable core is connected to the other, generally appear in the terminal box.
Second, the type of fiber jumpers
Jumper single-mode fiber and multimode fiber jumper fiber jumpers in the data transmission device, typically a single mode fiber jumper yellow connector and protective sleeve blue wavelength of 1310nm / 1550nm, the transmission distance of 10km / 40km, long distance transmission; multimode fiber jumpers: Usually as an orange or blue lake, linker and protective sleeve beige or black, having a wavelength of 850nm, the transmission distance of 500m, a short transmission distance.
Fiber jumpers can generally be divided into the following type connector according to:
①LC optical fiber jumpers: rectangular connector, easy to operate using the modular jack (RJ) is made of a latch mechanism, the SFP optical module is connected to a connector, which are commonly used in the router.
②SC optical fiber jumpers: a rectangular connector, a plug-type fastening the latch, is connected to the optical GBIC module connectors, commonly used in routers and switches.
③ST optical fiber jumpers: round connector, using the turnbuckles fastened, fiber distribution frames used.
④FC optical fiber jumpers: circular fiber connector, an external metal material, is also fastened using a turnbuckle, generally used in the ODF side.
⑤MPO optical fiber jumpers: two high-precision plastic molding composition connector and cable, a small design, reliable connection density.
⑥MTP optical fiber jumpers: core number, small size patchcord, high-density integration is applied to the optical fiber line environment.
Third, the pigtail type
与光纤跳线一样，尾纤按光纤类型分为单模尾纤和多模尾纤，单模尾纤的外护套为黄颜色，波长为1310nm/1550nm，传输距离可达10km/40km，用于长距离连接；多模尾纤的外护套为橙色/湖水蓝，波长为850nm，传输距离为500m，用于短距离连接，易天光通信ETU-LINK提供的光纤跳线及尾纤有多种类型选择。
尾纤根据连接器类型一般可分为以下几种：
①LC型尾纤连接器：LC型尾纤连接器的插针和套筒的尺寸是以上两种连接器的一半，提高了光配线架的空间利用率，它采用操作方便的模块化插孔（RJ）闩锁原理制成。
②SC型尾纤连接器：采用工程塑料材质，价格便宜，外壳呈矩形状，对接端面的插针多采用PC或APC型研磨方式，固定方式为插拔销闩式，操作方便而且不易氧化。
③ST型尾纤连接器：与SC型尾纤连接器不同的是，ST型尾纤连接器的芯外露而SC型尾纤连接器的芯是在接头里面，通常在10Mbps以太网系统中采用ST型尾纤连接器，在10Mbps以太网中采用SC型尾纤连接器。
④FC型尾纤连接器：又被称为圆型带螺纹接头，采用金属材质，耐用性好，常用于配线架上。
四、跳线和尾纤的应用
跳线主要用于光纤配线架或光纤信息插座到交换机之间的连接、交换机与交换机之间的连接、交换机与桌面计算机之间的连接以及光纤信息插座到桌面计算机之间的连接，可应用于管理、设备间和工作区子系统。
尾纤主要应用于光纤通信系统、光纤接入网、光纤数据传输、光纤CATV、局域网(LAN)、测试设备、光纤传感器、串口服务器、FTTH/FTTX、电信网络和预端接安装。
五 、跳线和尾纤的注意事项
①跳线连接的光模块收发波长必须相同，一般情况下，短波光模块搭配多模跳线，长波光模块搭配单模跳线，以保证数据传输的准确性。
②跳线在布线过程中尽可能的减少绕圈，这样可以减少在传输过程中光信号的衰减。
③跳线的接头应保持干净，在使用后应用保护套将接头封装起来，以防油渍和灰尘进入，如果弄上了污渍，应用棉签蘸取酒精清洁。
④ relatively thin pigtails, pigtails cross section of 8 degrees, no high temperature will exceed 100 ℃ damaged, so to avoid the use in high temperature environments.
Optical fiber connectors are an important component of optical fiber communications, in data transmission, the ferrule is good or bad, and technology are made by the method determines the stability of data transmission.