Fiber connector types spf1/3/2024 ![]() ![]() We are going to heavily recommend LC for a lower-density connection, and here is a picture as for why, just look at the size. If you have existing SC panels, for example, then it may make sense to get at least some SC gear. Let us get to the more controversial aspect: a simple recommendation. ![]() Our Recommendation and a Simple Explanation That is why the LC duplex connectors are so popular and many people just call the duplex version of the connector the LC connector. In the fiber optic cable that you are likely to use, you will have two fiber cables one passing data in each direction. Today’s 1U 48-port 25GbE + multiple 100GbE switches would be hard to accomplish with SC connectors just due to their size.Ī quick note here, technically we are showing duplex connectors because there are two fibers. LC Connector in SFP Optic and Portīy LC connectors being half the size, optical networking could increase in density. If you do not know what a ferrule is, think of it as the structured end to a cable that forms the connector (trying for a broad definition here since ferrules are used outside of just optical cabling.) LC connectors utilize a latch to keep the connector in place. The key innovation for LC was that the ferrule is half the size of the SC connector. LC was a response to the SC connector which pre-dated and dominated the market before it. The most popular connector in the world outlived the company that made it. LC stands for “Lucent Connector” even though we have heard some people call them the little connectors. Lucent Technologies developed LC connectors. The SC connector is extremely durable, and it is very easy to just push in/on or pull out/ off. It was originally made by Nippon Telegraph and Telephone (NTT) and it is extremely popular in many industries such as telecom. It became popular in industries where companies were looking to minimize opportunities for truck rolls due to improperly installed connectors. SC was an innovative connector because it was very easy to install and performed well. ![]() You may also hear people call this the standard connector, square connector, or I know someone that calls this the stick-click connector. When we discuss SC, this is an abbreviation for Subscriber Connector. ![]() That is why we are going to focus on those. There are FC and ST connectors in this segment (often found on test and measurement gear as an example), SC and LC connectors are more popular these days, especially in smaller and data center networks. We are going to focus on the SC and LC connectors here. Many of our readers may be purchasing fiber optic cables, and want to know which connectors to use. As a result, it is usually less expensive and easier, especially in small quantities, to purchase pre-terminated fiber optic cables with connectors already attached. On the other hand, copper is cheap and easy to terminate to exact lengths in the field. Fiber Optic Networking Guide SC or LC Connectorįiber optic cables are awesome because one can transmit large amounts of data further and more efficiently at distance than with copper. In this quick guide, we are going to discuss the differences, and more importantly, have a recommendation on which you should choose. While Patrick is installing a MPO/ MTP network, which is a higher-density connector, the most basic connectors many of our readers will encounter include either the SC or LC connectors. The LC connector is available in simplex and duplex (with clips) in standard color including blue (singl emode), green (single mode APC) and beige (multimode).As part of our new fiber optic guide series, we need to start addressing connectors. The LC connectors are available for single mode UPC with white or blue boots, for APC with green boots and for multimode PC with white, red or black boots suitable for 900µm or 3mm cable diameters or with heat shrink and crimp cable retention method for 2mm cable diameters (white and yellow for duplex and yellow for simplex). The LC connector complied with IEC 61754-20, it is applied for High-density connections, SFP and SFP+ transceivers, XFP transceivers. The LC connector (short for Lucent Connector, Little Connector, or Local Connector), It features a 1.25mm Zirconia ferrule in a small form factor (SFF) fibre optic connector housing with a snag free latch which gives an audible click upon engaging for reliable and high density connections. ![]()
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