What is the difference between an optical fiber jumper and an optical fiber pigtail?

Optical fiber jumper connects devices and optical fiber wiring links by installing connectors on both ends of the optical cable. It has a thick protective layer, which is generally used in the connection between the optical end machine and the terminal box, and is applied in some fields such as optical fiber communication system, optical fiber access network, optical fiber data transmission and local area network. Below, let's look at the difference between fiber jumper and fiber pigtail.
First, the difference between fiber jumper and fiber pigtail
Optical fiber jumper Used to make a jumper from a device to an optical fiber cabling link. It has a very thick protective layer and is generally used for the connection of the optical terminal and the junction box.
Only one end of the pigtail cable has a connector, and the other end is the broken end of the cable core. It is welded to other fiber optic cable cores and is often found in fiber optic junction boxes for connecting optical cables to optical transceivers
Fiber jumper is a device for detachable (removable) connections between optical fibers. It precisely connects the two ends of the fiber, so that the transmitted output light energy is coupled to the receiving fiber to the maximum extent, and the impact of its involvement in the optical link on the system is reduced to a minimum. That's the basic requirement. To a certain extent, it also affects the reliability and performance of the optical transmission system.
Second, how to detect whether the fiber jumper is qualified?
With a plug-in loss meter, first measure whether the jumper is on or off with a light pen to ensure that the fiber is not broken. In general, the test index of the carrier level is: the insertion loss is less than 0.3dB, and the return loss is greater than 45dB.
Fiber jumper performance tests are divided into:
1. Optical performance test
Including return loss/insertion loss test, the instrument under test can use the return loss/insertion loss comprehensive tester.
2. End geometry test
The parameters tested include radius of curvature, vertex offset, fiber height, etc.
3. End scratch detection
Using a video fiber magnifying glass, this instrument gives clear images and is extremely simple to operate. Some customers also use magnifying glasses for testing. The instrument integrates 400x, 200x and 80x magnifying glasses for clear and easy viewing of fiber and core end faces. Of course, you can also use the relevant software for automatic checks.
4. Fiber tensile test
You need to test the tension that the optical fiber connector can withstand.
5. Ambient temperature experiment
You need to test the performance specifications of optical fiber connectors at different ambient temperatures.
3. Common applications of optical fiber jumper interfaces
The common interface types of optical fiber jumpers are FC, SC, ST, PC, APC, and LC. The fiber jumper of the FC connector is mostly used for the distribution frame, and the fiber jumper of the SC connector is mostly used for the router switch. In addition, there are various types of fiber optic interfaces such as MTRJ, MPO, MU, SMA, FDDI, E2000 and D4.