The receiving and transmitting wavelengths of optical modules at both ends of the fiber jumper must be the same, that is to say, both ends of the fiber must be optical modules with the same wavelength. Generally, the short-wave optical module uses multimode optical fiber (orange optical fiber), and the long-wave optical module uses single-mode optical fiber (yellow optical fiber) to ensure the accuracy of data transmission

Do not bend and wrap the optical fiber excessively in use, which will increase the attenuation of light in the transmission process

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, it can be cleaned with a cotton swab dipped in alcohol, otherwise the communication quality will be affected

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

2. The minimum bending radius of the optical fiber shall not be less than 150mm

3. Protect the insert and the end face of the insert to prevent bruise and pollution, and timely wear the dust cap after disassembly

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

5. In case of man-made and other irresistible factors damage, replace the damaged optical fiber jumper in time

6. Read the instructions carefully before installation, and carry out installation and commissioning under the guidance of the manufacturer or dealer's engineer

7. If the optical network or system is abnormal, the troubleshooting method can be used to test one by one. When testing or removing jumper faults, you can do the on-off test first. Usually, you can use a visible laser pen to light the entire optical fiber link for judgment. Or further use the precision optical fiber insertion loss return instrument to test its various indicators. If the indicators are within the acceptable range, the jumper indication is normal, otherwise, it is unqualified

Optical fiber jumpers are divided into the following three types according to the termination type: ST-ST, SC-SC, and ST-SC. According to the type of optical fiber, there are mainly two types of single-mode optical fiber and multimode optical fiber. The specifications of jumper length include 0.5m, 1m, 2m, 3m, 5m, 10m, etc. According to the material of cable outer sheath, it can be divided into ordinary type, ordinary flame retardant type, low-smoke halogen-free type (LZSH), low-smoke halogen-free flame retardant type, etc

According to the fire rating of the building and the fire resistance requirements of the materials, the generic cabling system shall take corresponding measures. Flame retardant cables and optical cables shall be used when laying cables or optical cables in flammable areas and building shafts; Flame retardant, low smoke and low toxicity cables or optical cables should be used in large public places; Flame retardant wiring equipment shall be used in adjacent equipment room or handover room