With the expanding interest for higher transfer speed, various kinds of transceiver modules are intended for data transmission, including GBIC, SFP, SFP+, QSFP, etc. All things considered, what do GBIC, SFP, SFP+ and QSFP represent? Among them, SFP has been utilized in fame for more than 15 years. This article will give an answer about what does SFP stand for and reveal to you how you can use it.


What Does SFP Stand for in Networking?

SFP stands for small form-factor pluggable. It is a compact, hot-swappable optical transceiver module that utilized in telecommunications and data communications systems. Rather than being institutionalized by authority guidelines, SFP is determined by the multi-source agreement (MSA). MSA is an agreement between various transceiver makes to make institutionalized items. So the SFP is perfect over a scope of telecoms merchants' equipment. What's more, SFP module is intended to help synchronous optical systems administration (SONET), Gigabit Ethernet, fiber channel and other correspondence models. SFP module can be sorted into different kinds under Gigabit Ethernet models and industry-accepted standards, including 1000BASE-EX, 1000BASE-ZX, 1000BASE-SR and so on. 1000BASE SFP module

1000 BASE SFP module


SFP vs Mini GBIC:What’s the Difference?

To comprehend the contrast among SFP and Mini GBIC, we need to become more acquainted with GBIC first. GBIC is short for gigabit interface converter, which is a hot-swappable transceiver created in 2000. With the interest for higher data transfer capacity and quicker transmission speed, Mini GBIC is created. Smaller than usual GBIC was showed up in 2001. Similarly as its name, Mini GBIC is like the previous GBIC in capacity however with a smaller form factor. In reality, Mini GBIC and SFP transceiver module allude to something very similar, which has traded GBIC in many applications for the little size. SFP, otherwise called Mini GBIC, is an updated hot-pluggable module that can be introduced and removed effectively. It gives adaptability to the transmission in the two information and media transmission applications. SFP and Mini GBIC are exchangeable, yet the name of Mini GBIC isn't authoritatively characterized in the MSA.


How to Use SFP Ports on Switch?

SFP port, a small form-factor hot pluggable interface, is utilized to broaden exchanging usefulness all through the system. It empowers Gigabit changes to permit both copper and optical connections by embeddings the relating Gigabit SFP module. Also, it is most regularly utilized for the uplink over either short and long transmission separations. There are a few sorts of fundamental arrangements:

  • Fiber SFP – At the point when SFP ports on switches are embedded into fiber SFP module with optical port, fiber optic links (SMF fiber/MMF fiber) with duplex LC connector are needed  to support the connection.

  • SFP DAC/AOC – DAC comprises of twinax copper link with SFP DAC connectors on either end. AOC is characterized as a fiber jumper cable ended with SFP AOC connectors on either end. So the SFP DAC/AOC on the DAC/AOC link can be embedded legitimately into the comparing SFP ports on switch.

  • 1000BASE-T Copper SFP – When the SFP ports are plugged by 1000BASE-T copper SFP with electrical port, the system links, for example, Cat5e must be utilized for 1Gbit/s data transmission. It is optimal for short reach distance.

  • BiDi SFP – In contrast to conventional optical transceivers, BiDi SFP module is fitted with wavelength division multiplexing (WDM) diplexers. It joins and isolates data transmitted over a solitary fiber dependent on the wavelengths of the light. So it has just a single port to transmit and get optical data on independent wavelength and supports a transmission distance up to 120km.


SFP module is an adaptable and necessary device in fiber optical connections. When you pick SFP modules in the market, you would be advised to think about the corresponding switches and cables for the applications. Unoptix offers fibre cables and compatible SFP modules with major and minor network equipment manufacturers at a fraction of the cost of vendor-branded equivalents. If you have any requirements, you're welcome to visit Unoptix webshop.