D4 fiber adapter     Commodity Profile Download technical documentation   Name：D4 fiber adapter Details：D4 fiber adapter An adapter is a mechanical device designed to align fiber-optic connectors. It contains the interconnect sleeve, that holds the two ferrules together. Features: Low insertion loss, high return loss Good compatibility High precision of mechanical dimensions High reliability & stability Ceramic or Bronze Sleeve PC、APC、UPC optional Simplex / Duplex Application: Local Area Network CATV System Telecommunication Networks Equipment Test