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Fixed Attenuators from FOS are mating adapters with an air gap in the mating sleeve, providing the necessary attenuation.
These attenuators have the dimensions of a standard mating adapter.
FC/APC Fixed attenuator are supplied with the 'D' hole mount and has the return loss less than - 60 dB. All attenuators are specified for the wavelength 1310nm. Sleeves are maid from bronze
Fixed Attenuator: FM Adapter is the best choice for the optical port saving for the different devices when many insertions and attenuation are necessary. FM adapter combines connector, adapter and air gap attenuator; consist of two ceramic ferrules and one bronze sleeve.
The fiber of the required type is pasted into the ferrules and pre-polished; necessary air gap is provided.
Hybrid Fixed Attenuator – FM Adapter may be used for the situation requiring dissimilar connector styles.
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