Tuesday, April 12, 2016

1000BASE-SX SFP Transceivers for Gigabit Ethernet

Standardized by the IEEE, Gigabit Ethernet is a term describing various technologies for transmitting Ethernet frames at a rate of a Gigabit per second, which has been considered to be a viable solution for increased bandwidth requirements for growing networks. 1000BASE SFP transceiver is a hot-pluggable input/output device that plugs into a Gigabit Ethernet port/slot, linking the port with the network. Recently the market is flooded with various 1000BASE SFP transceivers available for Gigabit Ethernet. With so many options out there in the market, people may feel puzzled about how to select the one that is in in accordance with their application. Therefore the following article will make a brief introduction to the 1000BASE SFP to help you choose the most suitable one.
Fiber-based or Copper-based Gigabit Ethernet
According to cable material, Gigabit Ethernet can be classified into fiber-based Gigabit Ethernet and copper-based Gigabit Ethernet. In fiber-based Gigabit Ethernet, 1000BASE-X is used to refer to Gigabit Ethernet transmission over fiber. 1000BASE-X is a group of standards for Ethernet physical layer standards. These standards include: 1000BASE-SX (A fiber optic Gigabit Ethernet standard for operation over multi-mode fiber), 1000BASE-LX (a fiber optic Gigabit Ethernet standard using a long wavelength laser and a maximum RMS spectral width of 4 nm), 1000BASE-LX10 (which is very similar to 1000BASE-LX, but achieves longer distances over a pair of single-mode fiber), 1000BASE-BX10 (which is capable of up to 10 km over a single strand of single-mode fiber) or the non-standard 1000BASE-EX ( a industry accepted term to refer to Gigabit Ethernet transmission) and 1000BASE-ZX (a multi-vendor term to refer to Gigabit Ethernet transmission) implementations.
While for copper-based Gigabit Ethernet, 1000BASE-CX, 1000BASE-KX, 1000BASE-T and 1000BASE-TX are four standards for Gigabit Ethernet over copper wiring. 1000BASE-CX uses copper cables as a medium. 1000BASE-KX is part of the IEEE 802.3ap standard for Ethernet Operation over Electrical Backplanes. 1000Base-T uses four pairs of Category 5 unshielded twisted pair cables to achieve Gigabit data rates. 1000BASE-TX is similar to 1000BASE-T but uses two pairs of wires rather than four for data transmission.
1000BASE SFP Transceivers for Gigabit Ethernet
1000BASE SFP transceiver is a device that interfaces a network device motherboard to a fiber optic or copper networking cable. It is designed to support Gigabit Ethernet, Fibre Channel and other communications standards. As noted before, there are 1000BASE optical SFP transceivers and 1000BASE copper SFP transceivers used in Gigabit Ethernet. The following part will go on to talk about one of the 1000BASE optical SFP transceivers—1000BASE-SX SFP.
The 1000BASE-SX is one of the physical layer standards for Gigabit Ethernet, meaning the single optic fiber 1000Mbps baseband transmission standard. “S” refers to short-range multimode optical cable, while “X” means 4B/5B block coding for Fast Ethernet or 8B/10B block coding for Gigabit Ethernet. The standard specifies a transmission distance between 220 m and 550 m. It is highly popular for intra-building links in large office buildings, co-location facilities and carrier neutral internet exchanges. Therefore, 1000BASE-SX SFP transceiver module is the best seller in those fields.
Two 1000BASE-SX SFP Transceivers
The 1000BASE-SX SFP transceiver module is compatible with the 1000BASE-SX standard. It can support up to 1km over laser-optimized 50μm multimode fiber cable. The wavelength range that 1000BASE-SX SFP transceiver module transmits and receives is from 770nm to 860nm. Fiberstore provides a variety of 1000BASE-SX SFP transceivers that are fully compatible with other brands. Take AA1419048-E6 and TL-SM311LM as an example.
AA1419048-E6AA1419048-E6 is Avaya Nortel 1000BASE-SX SFP transceiver module for multimode fiber. It is the multimode module with a wavelength of 850nm. Avaya Nortel 1000BASE-SX SFP transceiver module supports hot-pluggable SFP footprint duplex LC connector Interface. This transceiver is built to comply with Multi-Source Agreement (MSA) standards. AA1419048-E6 supports dual data-rate of 1.25Gbps/1.0625Gbps, which is widely used in fiber channel links, Gigabit Ethernet links, Fast Ethernet links, other optical links.
TL-SM311LMBesides AA1419048-E6, TL-SM311LM from TP-LINK is also available in the market for supporting Gigabit Ethernet Application. TL-SM311LM has the same specification with other 1000BASE-SX SFPs, which supports a link length of up to 550m on multimode fiber.
As there are different physical layer standards for Gigabit Ethernet, different 1000BASE SFP transceivers may be used for different application. These 1000BASE SFP transceivers can be used for single-mode and multimode fibers of different reaches. 1000BASE-SX SFP transceiver can operate link spans of up to 550m on any multimode fibers. Fiberstore produces a variety of compatible 1000BASE SFP with high quality and low prize including the above two SFP transceivers. We can also customize optic transceiver to meet your specific requirements. If you have any interest, please send your request to us.

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