![]() They are better than hand-grounded and hand-polished connectors, and have a reflectivity of –40 dB. A pigtail is a piece of optical fiber in a protective sheath terminated on one side with a specific type of connector. Fiber optic pigtails are designed to terminate fiber optic cables. So, if you buy one-sided fiber-optic jumpers (pigtails) that will terminate the cable by welding, then most likely, these pigtails have a SPC polished connector. The end of the fiber is polished in the usual way, just instead of hand polishing it is used machine. Polishing SPC (Super Physical Contact) differs from regular PC polishing only in higher quality. Since manual polishing of the PC as a whole didn’t give the best results (typical insertion loss for single-mode fiber is 0.2 dB, reflectivity is within –30 dB), manufacturers continued to search for new grinding methods So there were types of grinding SPC and APC. They are suitable for most data transmission systems, in which we are talking about short distances and not too demanding applications. All the modern connectors made using adhesive technology fall into this class. The ST, SC, FC connectors and some other less common ones now also have such rounding. Therefore, the ends of the connectors acquired rounding (spherical surface). PC (Physical Contact) polishing initially envisaged only a flat version of the connector, but operating experience showed that a completely flat end of the connector cannot exclude the formation of air gaps between the ends of the optical fibers. Next, we consider in detail each type of polishing (grinding) of fiber-optic connectors. ![]() Please note: optical connectors (connectors) with APC polish are incompatible with other types of connectors, so green is used to designate them. APC polished connectors are widely used in cable television networks. Modern telecommunications equipment typically uses optical connectors with UPC polishing and less commonly APC. polishing should ensure the physical contact of the fibers in order to reduce the back reflection of the signal (reflectivity).Ĭurrently, there are 4 types of polishing of the connecting surface: PC, SPC, UPC and APC. Polishing is designed to ensure that there is no air gap between the connecting surfaces (ends) of the fibers when they are connected to the connector. To connect to the SC connector, fiber-optic patch cords are used (with connectors of the same type or connectors of different types), which are intended for switching between the ports of the active equipment.ĪPC and UPC designates the type of polishing (grinding) of a fiber optic connector.įirst, let us explain what polishing / grinding of connectors is needed for. The SC connector belongs to the class of common use connectors and is widely used in various-scale networks. This type of connector is widely used for both singlemode and multimode fiber. SC (Subscriber Connector) designates the type of fiber optic connector. In this article, we will look at the main differences between the SC / APC and SC / UPC fiber-optic connectors used in GPON devices. What are the main differences between SC / APC and SC / UPC fiber optic connectors used in GPON devices? If you don't know where to find the serial number Click hereĭescription of the optical connectors SC / APC and SC / UPC used in GPON devices. To open a support request, please enter the Serial Number of your device first. Product Selector helping selecting the products matching your needs: Ĭommunity Forum(English), YouTube Channel(English), Tech Library offering additional technical information to business users: Submit a web support request & We don’t offer Phone supportĭiscover our comprehensive online support resources, designed to assist Zyxel Customers worldwide.ĭownload Library for Manual, firmware and quick start guides: Submit a web support request & Phone support ![]() ![]() ![]() Welcome to EMEA Support Portal, your direct Support options are as below: ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |