SFP, shorts for Small Form Factor Pluggable. is designed to convert serial electric signals into serial optical signals. SFP modules are typically inserted into a network switch in order to connect a Fiber Optic system with an Ethernet system. The SFP was designed as a predecessor to the Gigabit Interface Converter(GBIC) interface, and supports a greater number of transceivers per inch compared with GBIC. This is the reason why SFP is also known as Mini GBIC.

SFP transceivers are common to support SONET, Gigabit Ethernet, Fibre Channel, and several other communications standards. SFP transceivers can be acquired with a variety of receiver and transmitter types. Users can choose right SFP transceiver for each Fiber Optic link based on the type of optical fiber they are using to provide the required reach.SFP transceivers are available in several different categories, including 850 nm 550m MMF (SX), 1310 nm 10 km SMF (LX), 80 km (ZX), 120 km (EX or EZX), CWDM and DWDM. SFP transceivers are also available with a copper cableinterface to connect to unshielded twisted pair networking cable.

Cisco is famous for their networking equipment. Such as Optical Networking&#65292, Cisco router, Cisco switch, and more. And here, I am going to talk about Cisco SFP transceivers in the following list.

Cisco SFPtransceivers are hot swappable. From different working wavelength and distance, Cisco SFP divided into a wide range of transceivers . Signal transmitting rate of these modules range from 100Mbps up to 4Gbps or more, working distance of these SFP transceiver modules can be from 500 meters to 100 kilo meters, working wavelength of different SFP modules are typically 850nm, 1310nm and 1550nm.

Cisco SFP is an upgraded version fiber optic transceiver. General SFP modules are with SC fiber connector interfaces, however, Cisco SFP is with LC interface. Moreover, the main body size of Cisco SFP is only about half of typical SFP. The small, modular optical interface transceivers offer a convenient and cost effective solution for the adoption of Gigabit Ethernet and Fibre Channel in data center, campus, metropolitan area access and ring networks, and storage area networks. Cisco SFP represents the trends of smaller and more flexibility.

Cisco SFP makes it easy to change and easy for maintenance compared with traditional modules. SFP fiber transceiver modules make the fiber optic network or fiber-Ethernet network easier to upgrade or maintain, users can replace a single SFP module during the process instead of replace the whole board with many modules on it.

In the near future, it is going to expand to SFP+. SFP plus is an upgraded version of the small form pluggable transceivers. SFP plus target at the application of 10Gbps Ethernet and 8.5Gbps Fibre channel, not likeSGMII SFP(Gigabit Media Independent Interface) for 10/100/1000-Mbps Ethernet or Gigabit Ethernet links, this enable SFP plus suitable for more dense installations. What is more, SFP plus is with lower power consumption for less than 1W and it is even cost effective. These transceivers are with managed digital optical monitoring and superior high temperature performance. Then, data rates of 10 Gbits/s will be possible, including 8 gigabit Fire Channel. SFP+ modules have some of their circuitry on the outside, as compared to Xenpak or XFP type modules which have everything inside.

Ingellen, known as a leading supplier of Cisco SFP, offers a great variety of SFP transceivers which are available with different transmitter or receivers. It makes the user convenient to configure and customize the transceiver to get the most appropriate optical reach with either multi-mode fiber or single-node optic fiber type. Also there areSGMII SFP transceiversavailable. SFP transceivers supplied feature as the original Cisco SFP, what's more, they are more economic on the prices.

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