Types of Fiber Optic Jumpers

Classification of fiber optic 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;

According to the structure of the connector, it can be divided into: FC jumper, SC jumper, ST jumper, LC jumper, MTRJ jumper, MPO jumper, MU jumper, SMA jumper, FDDI jumper, E2000 jumper, DIN4 Jumper, D4 jumper, etc. in 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.

Precautions for using fiber optic 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 with 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.

Features of fiber optic jumpers

1. Low insertion loss

2. Good repeatability

3. Large return loss

4. Good inter-plug performance

5. Good temperature stability

6. Strong tensile performance

The difference between optical fiber jumper and optical fiber pigtail

Fiber optic jumpers are used as jumpers from equipment to fiber optic cabling links. It has a thicker protective layer and is generally used for the connection between the optical transceiver and the terminal box.

Pigtails are also called pigtails. Only one end has a connector, and the other end is a broken end of an optical fiber core. It is connected to other optical fiber cores by welding. It often appears in optical fiber terminal boxes and is used to connect optical cables and optical fiber transceivers. (couplers, jumpers, etc. are also used between them).

Optical fiber connector is a device for detachable (movable) connection between optical fiber and optical fiber. It precisely butts the two end faces of optical fiber so that the optical energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent. And to minimize the impact on the system due to its intervention in the optical link, this is the basic requirement of the fiber optic connector. To a certain extent, fiber optic connectors also affect the reliability and performance of optical transmission systems.