Features: Female-male attenuator works through polishing optical ferrule to attenuate the intensity of laser High attenuation precision Simple and reliable structure Low wavelength relativity Low polarization related loss Environmentally stable Specifications: Operating wavelength: 1,310 and 1,550nm Return loss: ≥55dB (UPC) and ≥65dB (APC) Attenuation accuracy: ±0.5(1-10) and ±1.0 (11-30) Polarization dependent loss: ≤0.2dB Maximum optical input power: 200nW Working temperature: -30 to + 75°C Storage temperature: -40 to + 85°C Ordering choice: 3, 5, 10, 15, and 20dB Applications: Optical power-adjust CATV and video Telecommunication networks Data processing network Industrial, mechanical, and military