1. Fiber Optic Attenuator 2. Singlemode, Multimode 3. Simplex, Duplex 4. FC, SC, LC, ST 5. 1dB 2dB 1- ... Polishing TypeAttenuator Type ValueStructure Cable Diameter Cord Length SM=Singlemode1=Simplex 85=850mmFC=FC P=PC FC=FC P=PCB=Bulk ... =MM50/125 35=1310/1550nm 6MM=MM62.5/125 ...... Singlemode Simplex FC/APC 10dB Fiber Optic Attenuator