SFP Optical Transceiver Modules

SFP package – hot little package module, the highest rate of up to 10G, is mostly used with LC interfaces. SFP is abbreviation of Small Form Pluggable, which can be simply considered as an upgraded version of GBIC. SFP module has half volume of GBIC, only the size of a thumb. It can be configured on the same panel, more than double the number of ports. SFP module has the same other basic functions as GBIC. Some switch vendors said the SFP module is mini GBIC.

SFP modules through the CDR and electronic dispersion compensation on the outside of the module, while the more reduced the size and power consumption. They are used for telecommunications and data communications applications in optical communication. SFP connected network devices such as switches, routers and other equipment motherboards and optical fiber or UTP cables. SFP is also a kind of industry specifications which some fiber optic device providers support. SFP modules support SONET, Gigabit Ethernet, Fiber Channel as well as some other communication standards. This standard extends to SFP+, which can support 10.0 Gbit/s transfer rate, including 8 gigabit Fiber Channel and 10GbE. The introduction of fiber optic and copper versions of the SFP+ module versions, and the module’s XENPAK, X2 or XFP version comparison, SFP+ module will remain in the part of the circuit board to achieve, rather than the module implementation.

SFP transceivers have many different types of transmission and reception, the user can select the appropriate link for each transceiver to provide based on available fiber types (such as multi-mode fiber or single-mode fiber) can reach the optical performance. Available optical SFP modules are generally divided into the following categories: 850nm / 550m distance MMF (SX), 1310nm wavelength / 10 kilometers from the SMF (LX), 1550nm / 40 km distance XD, 80 miles from the ZX, 120 yards from the EX or EZX, and DWDM. SFP transceivers are also available copper interfaces, making the design primarily for fiber optic communication devices are also able to host UTP network cable communication. There are also CWDM SFP and single-fiber “two-way” SFP.

SFP optical module configuration are: lasers (including transmitter TOSA with the receiver ROSA) and board composition IC and external accessories and external accessories, there are housing, base, PCBA, pull ring, clasps, unlock, rubber stopper composition, In order to facilitate the identification generally pull ring color discrimination module parameter type.

In accordance with the rate divided 155M/622M/1.25G/2.125G/4.25G/8G/10G, 155M and 1.25G market is used more, 10G technology is maturing, demand is rising attitude to development. In accordance with the wavelength divided 850nm/1310nm/1550nm/1490nm/1530nm/1610nm, the SFP 850nm wavelength multimode transmission distance 2KM below 1310/1550nm wavelengths for single mode, the transmission distance 2KM above, relatively speaking, this three wavelengths price is cheaper than the other three.

Many people do not know the difference between SFP and SFP+. This sometimes caused unnecessary trouble. 10G module has gone from 300Pin, XENPAK, X2, XFP development, and ultimately with the same size and SFP 10G transmission signal, which is the SFP+. SFP with its compact low cost advantages to meet the equipment needs of high-density optical modules, implemented from 2002 standard to 2010 has replaced 10G XFP and become the mainstream of market.

SFP+ optical modules have these following advantages. First, SFP+ package has the more compact dimensions than than XFP X2 (with the same size as SFP). Second, SFP+ optical modules can be direct connected with XFP, X2 and XENPAK modules which have the same types. Third, the cost ratio is lower than XFP, X2 and XENPAK products.

FiberStore offers cost-effective standards-based compatible Cisco SFP Transceivers. As a 3rd party OEM manufacturer, our Cisco SFP transceiver is delivered to worldwide from our factory directly.

Source: FiberStore

Basic Common Sense Resolution of Fiber Optic Transceivers

Fiber optic transceiver is an indispensable network data transmission equipment. What is fiber optic transceiver? What is the structure of fiber optic transceivers? What is the role of fiber optic transceivers in the data dissemination process?

Fiber optic transceiver includes three basic functional modules: optical media converter chip, the optical signal interface (optical transceiver module) and the electrical signal interface (RJ45), with network management functions include network management information processing unit.

Fiber optic transceiver is a short distance twisted pair electrical signals and optical signals over long distances to swap the Ethernet transmission media conversion unit, in many places, also known as Fiber Converter. Products in generic applications can not be covered in the Ethernet cable, you must use the fiber to extend the transmission distance of the actual network environment, and is usually located in the broadband metropolitan area network access layer applications; in helping the fiber last mile connections to the metro also played a huge role in the network and the outer layer of the network.

Used directly in some of the larger companies, network construction fiber-optic backbone network established for the transmission medium, the internal LAN transmission medium is usually copper. How to implement LAN and connected to the fiber optic backbone? This requires different ports, different linear, convert between different fiber and ensure the quality of the link. The emergence of fiber optic transceivers, conversion between twisted pair electrical signals and optical signals to ensure the smooth transmission of data packets between two networks at the same time it will network transmission distance limit extended to more than 100 kilometers from the copper wire 100 meters ( single-mode fiber).

What are the basic features of fiber optic transceiver:

1. It is completely transparent to the network protocol.

2. Ultra low-latency data transmission.

3. It supports a wide operating temperature range.

4. Using a dedicated ASIC chip data wire-speed forwarding. The programmable ASIC will focus on the multiple functions onto a single chip, has the advantages of simple design, high reliability, low power consumption, enabling the machine to get higher performance and lower cost.

5. Network management equipment to provide network diagnostics, upgrades, status reports, exception reports and control functions, provide a complete operation log and alarm log.

6. Rack equipment can provide hot-swap function, ease of maintenance and uninterrupted upgrade.

7. Support a full range of transmission distance (from 0 to 120 km).

8. Equipment 1 +1 power supply design, support for ultra-wide supply voltage, power protection and automatic switching.

Fiber transceiver classification:

There are many types of fiber optic transceivers. In WDM system, for example, there are CWDM and DWDM transceivers including CWDM SFP, DWDM SFP, CWDM SFP+, DWDM SFP+, CWDM GBIC, CWDM XFP, DWDM XFP, CWDM X2, DWDM X2, CWDM XENPAK, and DWDM XENPAK.

FiberStore provides a full range of optical transceivers, such as SFP+ (SFP Plus) transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP (Mini GBIC) transceiver, GBIC transceiver, CWDM/DWDM transceiver, and PON transceiver. All our fiber transceivers are 100% compatible with major brands like Cisco, HP, Juniper, Nortel, Force10, D-link, 3Com. They are backed by a lifetime warranty, and you can buy with confidence. We also can customize optical transceivers to fit your specific requirements.