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                            - DWDM system 
                              - Test equipments 
                              - Telecommunication networks 
                              - Optical amplifiers  
                               
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                              - Wide attenuation range 
                                    - High resolution 
                                    - Wavelength Insensitive 
                                    - Low PDL  
                                   
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                |  Characteristics | 
                 Conditions | 
                  Value 
                 
                    | 
               
               
                | Min | 
                Typ | 
                Max | 
               
               
                |  Attenuation Range(dB) | 
                  | 
                  | 
                1~40 | 
                  | 
               
               
                |  Resolution(dB) | 
                  | 
                  | 
                0.1 | 
                  | 
               
               
                |  Return Loss(dB) | 
                 SPC | 
                 40 | 
                   | 
                  | 
               
               
                |   | 
                 UPC | 
                 50 | 
                   | 
                  | 
               
               
                |   | 
                 APC | 
                 60 | 
                   | 
                  | 
               
               
                |  Operating Wavelength(nm) | 
                 1310 and 1550 | 
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                                      |  Out port cord length | 
                                       1~100dB |  
                                     
        |  Out port Polishing | 
             SPC, UPC, APC | 
         
        
          |  Out port connector | 
           SC, FC, LC, MU, ST | 
         
        
          |  Inport cord length | 
           1~100m | 
         
        
          |  Inport polishing | 
           SPC, UPC, PC | 
         
        
          |  Inport connector | 
           SC, FC, LC, MU, ST | 
         
        
          |  Usage | 
           SM, MM | 
         
        
          |  Filter type Variable Attenuator | 
         
                                   
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