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FC/UPC to FC/UPC Variable Fiber Optic VOA In-Line Attenuator 0-60dB
The In-line Variable Optical Attenuator
The in-line variable optical attenuator (VOA) is manually-adjusted, used for precisely balancing the signal strengths in fiber circuits, or balancing an optical signal when evaluating the dynamic range of the measurement system.
Note: Picture is for FC/APC to FC/APC, please take it as reference.