1000BASE-SX is a fiber optic Gigabit Ethernet standard. It is designed to operate over multi-mode fiber using a 770 to 860 nm, near infrared (NIR) wavelength. Optical power specifications of 1000BASE-SX interface include minimum output power of −9.5 dBm and minimum receive sensitivity of −17 dBm. 1000BASE-SX standard specifies a distance capability between 220 metres (62.5/125 µm fiber with low modal bandwidth) and 550 metres (50/125 µm fiber with high modal bandwidth). The 1000BASE-SX transceivers deliver their best with good quality fiber, optics, and terminations, with the help of which they provide connectivity over significantly longer distances. The 1000BASE-SX standard transceivers are highly popular for intra-building networks and normally installed in large office buildings, co-location offices and branch offices and carrier-neutral Internet exchanges. Cozlink 1000BASE-SX transceivers are industry approved replacements and can easily be used to replace other 1000BASE-SX compliant transceiver brands such as Finisar, Brocade, Dell, HP, Cisco, Huawei and others.
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