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 optical fiber must be optical modules with the same wavelength. The simple way to distinguish is that the colors of the optical modules should be the same. In general, short-wave optical modules use multimode fibers (orange fibers), and long-wave optical modules use single-mode fibers (yellow fibers) to ensure the accuracy of data transmission.

1. Do not bend and loop the optical fiber excessively during use, which will increase the attenuation of light during transmission.

2. If the optical fiber connector is dirty, you can use a cotton swab dipped in alcohol to clean it, otherwise the communication quality will be affected.

3. After the optical fiber jumper is used, it is necessary to protect the optical fiber connector with a protective sleeve. Dust and oil pollution will damage the coupling of the optical fiber.

4. The minimum bending radius of the optical fiber is not less than 150mm.

5. Before use, the ceramic ferrule and the end face of the ferrule must be wiped clean with alcohol and absorbent cotton.

6. Do not look directly at the end face of the fiber when the laser signal is transmitted.

7. Protect the ferrule and the end face of the ferrule to prevent bumps and pollution, and put on a dust cap in time after disassembly.

8. Read the manual carefully before installation, and carry out installation and debugging under the guidance of the engineer of the manufacturer or dealer.

9. The damaged fiber jumper should be replaced in time when it is damaged by man-made and other irresistible factors.

10. If the optical fiber network or system is abnormal, the troubleshooting method can be used to test one by one. When testing or troubleshooting the jumper, you can do the on-off test first. Usually, you can use a visible laser pointer to judge the entire fiber link. Or further use a precision optical fiber insertion loss and return loss instrument to test its various indicators. If the indicators are within the qualified range, the jumper indicates normal, otherwise it is unqualified.