What Should You Consider When Choosing an SFP Module?

SFP stands for Small form factor pluggable, also called a gigabit interface converter. It is a widely used SFP transceiver in narrow networking spaces due to its smaller size, to establish quick and stable communication between switches and different networking components. The SFP module works well with both copper and fiber optics, thus allowing you to expand the network that is already in place without having to redesign the infrastructure of the cable. This looks like a metal component and is easier to connect to another device using a cable to receive and transfer data. The SFP ports are found in firewalls, different types of routers, and NIC cards along with the ethernet switches.

In the above section, you have learnt about SFP meaning, now, let’s get an in-depth learning about the types of SFP modules available. Following are SFP module types that can be used to work with varied wavelengths for transferring of data to short and longer distances.

1000BASE-T SFP

It has a rich yet user-friendly R45 interface that will support effective communication up to 100 meters of network distance when you are transferring the data with the help of a CAT5 cable.

1000BASE-SX SFP

It is a short-range small form factor that would work effectively on the LC fiber of type multi-mode with a wavelength of 850-nanometer, to transfer or receive information seamlessly to a distance that is below 550 meters.

1000BASE-LX SFP

It is the best to be used for transferring data to a longer distance and it can support transfers up to 10 kilometers with the help of wavelength of around 1310 nanometer. The supported cable for the transfer is single-mode duplex LC.

1000BASE-EX SFP

This type of SFP is best to be used for transferring data up to 40 kilometers using the duplex LC cable of single-mode.

1000BASE-ZX SFP

It works effectively and supports data transfer up to 80 kilometers without data loss using duplex LC cables of single-mode.

There are different purposes for using SFP modules.

SFP module is widely used for connecting the fiber cables to different network switches and communication devices, which include but are not limited to media converters and industrial ethernet ports. The device enables users to use this interface port to connect with the appropriate transceiver for establishing fiber optical connections. A list of communication standards that are supported by this module is synchronous optical networking, fiber channel and gigabit ethernet.

However, these are mostly used in connecting a single gigabit network switch to another for increasing the network size and performance. It is used in military, commercial and industrial settings where the devices would need high-speed and reliable connectivity. It is used in conjunction with copper or fiber optic cables. The small form factor makes it ideal to be used in areas where accessibility is challenging. For the multimode, it supports up to 1310nm wavelength and for single mode, it supports a wavelength of up to 1550 nm.

The following are the factors you must take into account when choosing an SFP module for your business.

Compatibility

When you are planning to buy an SFP module, the first and foremost thing to check is its compatibility with the different network components that are already in place. There is no regulated international standard available for this module. Therefore, you have to check the compatibility of SFP in the Multi-source agreement which clearly states the manufacturers that work together and therefore allows you to mix and match various SFP brands. Following the MSA guidelines will help you to use cost-effective parts in different network components or you can use the same brand components in the whole network. Using the compatible components will reduce deployment time and equipment expenses.

Condition (Used or New)

You can get second-hand and new SFP modules in the market. The used SFP module can be distinguished from the new one as the SFP used will have scratches and minor damage on the optical port. With the appearance also, you can make out the difference. Another good way to check whether this module is new or not is by testing the optical power and comparing the obtained test result with the values or requirements in the technical document. If you notice a huge difference between a new and a used one, then it’s better to go for the new one.

Cost

The price of the SFP module differs from manufacturer to manufacturer. They will design and manufacture the SFP modules of different types. The performance of the module remains the same except for the price difference. It is highly recommended to choose a compatible SFP receiver from a reliable vendor based on your business needs, at the best price.

Conclusion

Now that you have learnt about the SFP, its significance and various factors that you must keep in mind when choosing the module to make it work at its best with the network devices, you can easily decide the right SFP module for your needs.