What are the classifications of fiber optic jumpers, and there are as many as ten thousand kinds of fiber optic wiring products. Optical fiber jumper (also known as optical fiber connector) means that both ends of the optical cable are equipped with connector plugs to realize the active connection of the optical path; one end with a plug is called a pigtail. Optical fiber jumpers can also be said to be similar to coaxial cables, except that there is no mesh shielding layer.
In the center is the glass core for light propagation. In a multimode fiber, the diameter of the core is 50 μm to 65 μm, roughly equivalent to the thickness of a human hair. The single-mode fiber core has a diameter of 8 μm to 10 μm. The core is surrounded by a glass jacket with a lower refractive index than the core to keep the fiber inside the core. On the outside is a thin plastic jacket to protect the envelope.
The classification of optical fiber jumpers, optical fiber jumpers can be divided into common silicon-based optical fiber single-mode and multi-mode jumpers according to different transmission media, and other optical fiber jumpers such as plastics as transmission media;
Optical fiber jumpers can be divided into: FC jumper, SC jumper, ST jumper, LC jumper, MTRJ jumper, MPO jumper, MU jumper, SMA jumper, FDDI jumper, E2000 jumper according to the structure of the connector head Line, DIN4 jumper, D4 jumper and so on various forms. The more common fiber optic jumpers can also be divided into FC-FC, FC-SC, FC-LC, FC-ST, SC-SC, SC-ST, etc.
Single-mode fiber (Single-mode Fiber): Generally, the fiber optic jumper is indicated by yellow, and the connector and protective sleeve are blue; the transmission distance is longer. Multi-mode fiber (Multi-mode Fiber): Generally, the optical fiber jumper is represented by orange, and some are represented by gray, and the connector and protective sleeve are beige or black; the transmission distance is short.
Classification of fiber optic jumpers
Precautions for the use of fiber jumpers. The transceiver wavelengths of the optical modules at both ends of the fiber jumper must be the same, that is to say, the two ends of the fiber must be optical modules of the same wavelength. The simple way to distinguish is that the colors of the optical modules must be consistent.
Generally, the short-wave optical module uses multimode fiber (orange fiber), and the long-wave optical module uses single-mode fiber (yellow fiber) to ensure the accuracy of data transmission.
Do not excessively bend or loop the optical fiber during use, as this will increase the attenuation of light during transmission. After using the optical fiber jumper, the optical fiber connector must be protected with a protective sleeve. Dust and oil will damage the coupling of the optical fiber. If the optical fiber connector is dirty, you can use a cotton swab dipped in alcohol to clean it, otherwise it will affect the communication quality.
1. Before use, the ceramic ferrule and ferrule end face of the optical fiber jumper must be wiped clean with alcohol and absorbent cotton.
2. The minimum bending radius of the optical fiber is less than 30mm during use.
3. Protect the ferrule and the end face of the ferrule to prevent bruising and pollution, and put on the dust cap in time after disassembly.
4. Do not look directly at the end face of the fiber when the laser signal is being transmitted.
5. In case of man-made or other force majeure damage, the damaged fiber jumper should be replaced in time.
6. Read the instructions carefully before installation, and carry out installation and debugging under the guidance of the engineers of the manufacturer or dealer.
7.If there is an abnormality in the optical fiber network or system, you can use the troubleshooting method to test one by one. When testing or troubleshooting jumper faults, you can do a continuity test first. Usually, you can use a visible laser pointer to illuminate the entire optical fiber link. Or further use a precision optical fiber insertion loss and return loss tester to test its various indicators. If the indicators are within the qualified range, the jumper indicates normal, otherwise it is unqualified.
