Front liter single / multimode fiber jumper from the device is mainly used for fiber optic cabling to link the jumper, so as to form a complete optical communication links. Commonly used fiber pigtails are generally divided into FC / SC / ST / LC / MTRJ / SMA / DIN type, multi-mode of 50 / 125μm, 62.5 / 125μm, single mode of 9 / 125μm; by grinding can be divided into PC type, APC type, UPC type. Technical advantages: Insert low damage, high return loss, standard metal parts, zirconia ceramic ferrule. Applications: wide / local area networks, scientific measuring instruments, cable television networks. Operating temperature range: -20 ℃ ~ + 60 ℃. Performance: types of conventional single-mode fiber jumper (FC / SC / ST / LC / MTRJ) conventional multimode fiber jumper (FC / SC / ST / LC / MTRJ) optical properties of 1, PC: insertion loss ≤0.3dB; Return Loss ≥45dB 2, UPC: insertion loss ≤0.2dB; Return Loss ≥50dB 3, APC: insertion loss ≤0.3dB; Return Loss ≥65dB 1, insertion loss ≤0.3dB mechanical and environmental characteristics 1, mutual Transsexual: any docking; 0.2dB 2, repeated mating: 1000; 0.1dB 3, vibration: 10-58Hz; Amplitude: 1.5mm: 0.2dB 4, temperature cycle: -40-80 ℃, 5 cycles; 0.2 dB 5, high temperature: 85 ℃, 100 小时; 0.2dB 6, low temperature: -40 ℃, 100 小时; 0.2dB core cable type 9 / 125μm 50 / 125μm or 62.5 / 125μm size and color outer diameter 2MM, 3MM, color yellow outer diameter of 2MM, 3MM, length standard color is orange 3M or specify a different length on request