The diameter of the ferrule and sleeve it uses is 1. 25mm, which is half of the size used by ordinary SC, FC, etc. It can increase the density of optical fiber connectors in the optical fiber distribution frame. Designed for very high-density networks. Now mostly obsolete but occasionally seen in older installations. Each connector differs in ferrule size, coupling mechanism, insertion loss behavior, handling convenience, and suitability for specific environments such as FTTH, data centers, industrial. GBIC Giga Bitrate Interface Converter, the fiber interface used is mostly SC or ST type SFP small package GBIC, the fiber used is LC type Fiber used: Single mode: L, wavelength 1310 single mode long distance LH wavelength 1310,1550 Multimode: SM wavelength 850 SX/LH means single mode or multimode.
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