The ST fiber optic attenuators are metallic body and ceramic sleeves, it is female to male type attenuator used to connect the ST optical connectors while providing the optical power reducing at a certain level, the ST fiber optic attenuator are 1dB to 30dB range, capable of. The ST fiber optic attenuators are metallic body and ceramic sleeves, it is female to male type attenuator used to connect the ST optical connectors while providing the optical power reducing at a certain level, the ST fiber optic attenuator are 1dB to 30dB range, capable of. Fiber Optic Attenuator is a component installed in a fiber optic transmission system that reduces the power in the optical signal. It is used to limit the optical power received by the photodetector to within the limits of the optical receiver. How to choose an optical fiber patch cord? The Optical. ST fiber optic attenuator is used with ST connections. ST fiber optic attenuators are capable of withstanding over 1W of high power light exposure for extended periods of time, making them well-suited to EDFA and other high-power applications. For detailed inqiry please contact our sales team at: sales@huihongfiber. Bellcore Compliant· Wavelength Independent Durability & Simple and Reliable Structure Operating. SMF Attenuators | Fixed 5dB 10dB 15dB 20dB | Male/Female Simplex Singlemode | LC, SC & ST Attenuators. Suitable for both 1310nm and 1550nm operation.