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EF Mode Controller
EF Mode Controller EF Mode Controller with OLS4

Encircled Flux Mode Conditioners


  • Improve Multimode Measurement Accuracy
  • Use existing MM Sources for Loss Testing to EF Standards
  • Compliant to IEC 61280-4-1 and TIA-568-14-B EF requirments

Product Description

Encircled Flux Compliance

International standards bodies established Encircled Flux (EF) guidelines (TIA-568-14-B and IEC 61280-1-4) to improve measurement repeatability by reducing loss measurement variation to within a target range of ± 10%.

Simple and effective: EF Mode Conditioners attach to the output of your multimode source ensuring the conditioned output meets Encircled Flux specifications.  

AFL offers both 50 µm and 62.5 µm EF Mode Conditioners.  Match fiber size to network fiber under test.  See below for list of fiber and connector combinations available. 

Encircled Flux Mode Conditioners

AFL Part Number  Fiber Size  Connectors
8700-06-0001MR  50/125 µm  FC to FC
8700-06-0002MR  62.5/125 µm  FC to FC
8700-06-0003MR  50/125 µm  SC to SC
8700-06-0004MR  62.5/125 µm  SC to SC
8700-06-0005MR  50/125 µm  SC to LC
8700-06-0006MR  62.5/125 µm  SC to LC

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