Before use, the ceramic ferrule and end face of the ferrule must be wiped clean with alcohol and absorbent cotton .The minimum bending radius of optical fiber shall not be less than 150 mm .Protect the ferrule and the ferrule end face to prevent damage and pollution. After disassembly, put on the dust cap in time .Do not look directly at the end of the optical fiber when transmitting the laser signal .In case of damage caused by man-made and other force majeure factors, the damaged optical fiber patch cord shall be replaced in time . 

Read the instructions carefully before installation and install and debug under the guidance of the engineer of the manufacturer or dealer In case of any abnormality in the optical fiber network or system, the troubleshooting method can be used to test one by one. When testing or troubleshooting the patch cord, the on-off test can be done first. Usually, the visible laser pen can be used to judge the entire optical fiber link. Or further use the precision optical fiber insertion loss return loss instrument to test its indicators. If the indicators are within the qualified range, the patch cord indication is normal, otherwise, it is unqualified. Do not bend or wrap the optical fiber excessively in use, which will increase the attenuation of light in the transmission process. After the optical fiber patch cord is used, it is necessary to protect the optical fiber connector with a protective cover in case dust and oil will damage the coupling of the optical fiber.