The main difference between APC and UPC connectors is the fiber endface. Learn what that means here. The differences between Angled Physical Contact ( APC ) and Ultra Physical Contact (UPC) fiber connectors and which is best for your application. APC Connector is a type of fiber connector that minimizes backreflection due to a 5° to 15° angle-polish applied to end faces.
When describing fiber connectors, we often use terms like “LC UPC simplex single-mode fiber connector” or “ SC APC simplex single-mode fiber connector”. As we know, fiber optic cable assemblies are mainly with connectors and cables, so the fiber cable assembly name is related to the connector name.
We call a cable LC fiber patch cable, because this cable is with LC fiber optic connector. APC vs UPC Optical Connectors. Perhaps the most frequent call we get from distressed customers pertains to APC and UPC or PC connectors.
APC stands for Angle Polished Connector. It is the green connector in the picture below. Note that the tip of the white ceramic has an. This difference is especially important when sending RF signal (as opposed to digital data).
Fiber connectors are not all the same. Secondly, the reflections can be reduced by using either Ultra Physical Contact ( UPC) connectors or Angled Physical Contact ( APC ) connectors as shown in Figure 1.
The UPC reduces reflections (ie increases return loss) by extremely fine polishing of the ends of the fibers so that the return loss can be extended from the. Because of the angle, the reflected light does not stay in the fiber core but instead leaks out into the cladding. Angle-polished connectors should only be mated to other angle-polished connectors. Accurate rotation angle alignment is especially important for polarization- maintaining (PM) fiber , where rotational misalignment between mated fibers decreases the polarization extinction ratio of the connection.
Then have you ever wondered what “UPC” and “ APC ” stand for? Or is there any difference between them? This is what we are going to talk about in . Specifically PC, APC , and UPC. APC PC and UPC connectors in fiber optics. They refer to the way the connector ferrule, the tiny ceramic structure that holds the fiber , is polished.
When it comes to fiber optic cables, you might be curious about the description that contains UPC or APC. For example, what is LC UPC to LC UPC? And what is SC APC to SC APC ? The APC connector can be attached to the INPUT port because the INPUT port is a non- contact mating. UPC and APC are actually two polish types of fiber ferrules.
Molex SC connectors, adapters and cable assemblies have been developed to meet the challenges of the Datacom and Telecom industries, including compatibility with many standard cable sizes and fiber types, adhering to industry mechanical and environmental standards.