(The fiber filler makes a dam that prevents the cement from leaking while in its fluid state.) In a horizontal run, you place the fiber filling at both ends of the fitting in a vertical run, you fill only the bottom end. First, run the conductors through the fitting. How do you install them? Installation of a sealing fitting is straightforward. Use a drain seal where moisture may accumulate in the fitting to provide an explosion-proof path for water to exit while still sealing the conduit to UL standards. of any enclosure containing arcing or sparking devices. For this reason, unless the device is factory-sealed, you must install sealoffs within 18 in. When activated, an arc- and spark-producing device such as a switch or breaker can ignite these gases in the enclosure and conduit system. Why the need for sealoffs? A conduit system isn't vapor-tight, so the gases inside and outside a conduit can be of the same concentration. Moreover, these barriers limit the passage of vapors from classified to nonclassified locations. They stop or localize explosive pressures from traveling through conduits. When properly installed and filled with a UL-listed sealing compound, they create a physical barrier that minimizes the passage of gases from traveling freely through the conduit. Sealoffs prevent explosions from spreading through conduit systems and igniting outside atmospheres. A classified area is not the place to cut corners. The below chart lists the commonly used color-codes.With lives and property at stake in a hazardous location, it's important you use only the highest quality sealing fittings from reputable manufacturers. It's important to use the proper connector on the proper cable because of different optical core and ferrule sizes. They were designed by Panduit™ to offer a quick connection option when wiring buildings with fiber.Ĭommon applications: building wiring, networkingįiber optic connectors are specific to either multimode or single mode fiber optic cable and the connector's color typically designates compatibility. They look and feel similar to a traditional RJ45 connector.įJ (fiber-jack or opti-jack) connectors are similar to MTRJ connectors in size and scope. MTRJ (mechanical transfer registered jack) connectors are typically used for duplex multimode connections and are increasing in popularity due to their small form factor and easy connection/disconnection. Similar to the ST connector, FC connectors provide a secure, locking connection that delivers a precise optical wave.Ĭommon applications: video over fiber electronics, test equipment, telecom applications ST (straight tip) connectors provide a secure, spring-loaded locking connection that's similar to the BNC connectors historically used in AV applications.Ĭommon applications: networking, datacom applicationsįC (ferrule core) connectors are rapidly decreasing in use thanks to the rise of LC connectors. Their size makes them easier to terminate, but it also limits their application in modern, size-sensitive electronics.Ĭommon applications: networking, multiplexers, media converters, demarc wiring, telecom applications SC (subscriber or standard) connectors are larger and less expensive than LC connectors. They've become the standard for SFP modules and most modern network electronics.Ĭommon applications: networking, SFP modules, AV over fiber extenders, high-density connection applications LC (Lucent) connectors are one of the smallest formats of connector. View step-by-step connector termination videos. The below guide explores the connectors commonly used in audio-visual, networking, broadcast and other low-voltage applications. Fiber optic connectors are available in a variety of formats depending on the cable type and connection style.
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