![]() SC connector – simplex and duplex, snap-in mechanism. However it is now gradually being replaced by SC and LC connectors. ![]() It has been the most popular single mode connectors for many years. Designed with a threaded coupling for durable connections. It is specifically designed for telecommunication applications and provides non-optical disconnect performance. Available in single mode and multimode.įC connector also has a 2.5mm ferrule (made of ceramic (zirconia) or stainless alloy). It mates with a interconnection adapter and is latched into place by twisting to engage a spring-loaded bayonet socket.įC connector – simplex only, screw-on mechanism. It has a long 2.5mm diameter ferrule made of ceramic (zirconia), stainless alloy or plastic. It is the most popular connector for multimode fiber optic LAN applications. ST connector – simplex only, twist-on mechanism. Standard fiber optic connectors – 2.5mm ferrule Below are loosely divided family types of fiber connectors which sometimes overlap. However there are also duplex and multi-fiber connector designs. The example shown above are FC connectors with a screwed-on mechanism.įiber Optic Connector Types and their applicationsīoth examples shown above are for single fiber cable (simplex) which is easy to install. The adapter body provides mechanism to hold the connector bodies such as snap-in, push-and-latch, twist-on or screwed-on. Ferrules slide into the sleeve and mate to each other. At the center of the adapter there is a cylindrical sleeve made of ceramic (zirconia) or phosphor bronze. Instead a fiber mating sleeve (adapter, or coupler) sits between two connectors. Unlike electronic connectors, most fiber optic connectors don’t have jack and plug design. Stress relief boot designs are different for 900um tight buffered fiber and 1.6mm~3mm fiber cable. Stress relief boot covers the joint between connector body and fiber cable and protects fiber cable from mechanical damage. This provides the strength for mechanical handing of the connector without putting stress on the fiber itself. Connector housing provides the mechanism for snapping into a mating sleeve (adapter) and hold the connector in place.įiber cable and strength member (aramid yarn or Kevlar) are crimped onto the connector sub-assembly body with a crimp eyelet. The end of the ferrule protrudes out of the sub-assembly body to mate with another SC connector inside a mating sleeve (also called adapter or coupler).Ĭonnector sub-assembly body is then assembled together with the connector housing. The ferrule is then assembled in the SC sub-assembly body which has mechanisms to hold the cable and fiber in place. The end of the fiber is at the end of the ferrule, where it typically is polished smooth. A 124~127um diameter high precision hole is drilled in the center of the ferrule, where stripped bare fiber is inserted through and usually bonded by epoxy or adhesive. SC connector is built around a long cylindrical 2.5mm diameter ferrule, made of ceramic (zirconia) or metal (stainless alloy). SC Connector Structure Elements in a SC connector The example shown is a SC connector which was developed by NTT (Nippon Telegraph and Telephone) of Japan. Although the mechanical design varies a lot among different connector types, the most common elements in a fiber connector can be summarized in the following picture. The adapter has a highly precise zirconium sleeve.More than a dozen types of fiber optic connectors have been developed by various manufacturers since 1980s. The ST Alberino mating adapters (metal and plastic) can be used for all ST FO connectors (not just Diamond products). The ST Alberino FO connectors meet the standards: IEC 61754-2. This technology offers: High-quality plug-in connections - Repeatable connections and a high level of stability - Simple expansion of existing systems - Reduced storage costs. Its values are identical with those of the ST Standard connectors. The “Alberino” insert can be used in all the connectors mentioned above. Diamond has developed a range of products with the same “Alberino” core piece for the following connectors: ST, E-2000®/SC/FC. ST Alberino FO connector for telecommunications (USA), CATV (USA), LAN, measuring and testing devices in industry. The adapter has a highly precise zirconium sleeve. The ST Standard mating adapters (metal) can be used for all ST FO connectors (not just Diamond products). The ST FO connectors meet the standards: IEC 61754-2 and CECC 86 115-801. The standard ST FO connector for telecommunications (USA), LAN, industry, medical and sensor technology. A typical feature of the ST connector is the bayonet connection, also known as the BFOC connector (bayonet FO connector). The ST connector (straight tip) is the standard connector type for installations.
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