Author Archives: Far.Li

Why Choose Pre-terminated Fiber Pigtail?

In fiber optic cable installation, how to connect cables to the system is the key to the success of the network. If done correctly, the optical signal can pass through the link with low attenuation and little return loss. Fiber pigtail provides an optimal way to connect optical fibers, which is used in 99% single mode applications.

What Is Pre-terminated Fiber Pigtail

The fiber pigtail of the pre-terminated method is a dedicated hardware connection for cable termination, which passes through the same procedure as the field-terminated fiber pigtail. But these steps are taken at the manufacturer’s facility or cable assembly. Pre-terminated fiber pigtails provides more convenient, easier installation and higher performance than field-terminated fiber pigtails. On the fiber pigtail, one end is bare fiber, and the other end has a pre-installed connector. Fiber pigtail is usually spliced on the strands of multi-fiber trunk cables. Simply speaking, optical fiber pigtail equals optical fiber connector plus fiber optic cable. There are many kinds of fiber pigtail. For example, according to the type of connectors terminated on optical fiber cable, optical fiber pigtail can be classified into FC, ST, SC pigtail.

fiber pigtail

Fiber Pigtail

Advantages of Using Pre-terminated Fiber Pigtail

So, what are the advantages of using pre-terminated fiber pigtail? Why do we use the pre-terminated fiber pigtail?

Superior Performance

One of the main advantages of pre-terminated fiber pigtail is that controlled, pre-terminated factory processes results in superior performance. The uniform and high quality connector end face geometry leads to lower insertion loss and better end-to-end attenuation.

Time & Cost Saving

Because the tails are ready to be installed immediately, there is no connector waste, no tedious tool kits or no need of special testers. Customers reported that the average cost reduction of the pre-terminated fiber pigtail was 20% to 30%, mainly thanks to time and labour savings in the field termination practices.

Environmental Friendliness

In addition to the advantages of having no need to test network performance, reducing downtime, rapid deployment and easy maintenance, the pre-terminated fiber pigtail is also environmentally friendly, eliminating waste and consumables associated with field termination. With the reduction of material cost and better flexibility, pre-terminated fiber pigtail is the better choice of most modern users.


Safety is always placed in the most important position in data centers. The pre-terminated fiber pigtail does provide many security benefits. Using the pre-terminated fiber pigtail, the installation needs less manpower, so the required expertise is less, and users can even use their own team to do the work.


In fact, most people are willing to choose pre-terminated fiber pigtail because it can provide easier installation ways to speed up data center deployment, reduce costs and errors, and provide great flexibility. That’s why we use it. But if you want to find out which terminated solution is most suitable for your installation, you need to consider all the factors, including consumables, tools, labor, proper training, and rework if needed. Besides, you need to remember that you can terminate and install the pigtail at the job site. If you need more details, please visit FS.COM. You can customize the pre-terminated fiber cable assemblies according to your application.

Cat6 vs Cat6a Cable: How They Differ From Each Other?

An Ethernet cable, one of the most commonly used network cables in wired networks, connects devices in local area networks, such as computers, routers and switches. In the past few years, Cat6 cables and connectors have become a necessity for new buildings to support Gigabit network applications and to support up to 250MHz of bandwidth. Subsequently, the Cat6a, which supports the data rate of 10G to 100 meters and the bandwidth of up to 500MHz, has been popular, becoming a new requirement for many data centers, hospitals and universities. Cat6 and Cat6a may be the two most commonly used standards for Ethernet cables.

What Is Cat6 Cable

Cat6 cables can improve interference and crosstalk, and support the maximum speed of 10Gbps, with a maximum length of 50M. The Cat6 cable uses RJ-45 connectors to make it fully compatible with the old IT devices and computers.

cat6 vs cat6a: cat6 cable

Figure 1: Cat6 Cable

What Is Cat6a Cable

Cat6a cable is an upgraded version of Cat6 cable that supports 10Gbps running over 100M with a maximum bandwidth of 500MHz. Cat6a is significantly thicker than Cat6 cable because of the increased insulation of cables, which helps to reduce crosstalk between other cables. This is also one of the few drawbacks of using Cat6a cables, because it requires extra space in pipes, cable bridges and cabling racks. Cat6a is backward compatible with Cat6 and Cat5e cables, using the same RJ-45 connector.

cat6a cable

Figure 2: Cat6a Cable

Cat6 vs Cat6a: What Are the Differences?

After learning about the Cat6 and Cat6a cables, our next question is, what are the differences between them?


Cat6a is an improved version of Cat6 routing and can provide better performance. Its cabling is a bit complicated. The rated speed of Cat6 cable is 1Gbps, while the rated speed of Cat6a cable can reach 10Gbps. Because its working frequency is 500Mhz, which is two times that of Cat6 cable running at 250Mhz.

Crosstalk Prevention

Cat6a cables are also stricter in shielding and protecting foreign crosstalk. Crosstalk occurs when a signal from a cable is leaked to another cable. This will distort signals by introducing noise and force network devices to work at a slower speed. As a result, the Cat6a cable is stricter in shielding and protecting external crosstalk, so the Cat6a cable will work better with a lot of other cables.


As always, the reason why making full use of Cat6a cable is not yet realized is the cost. The cost of a single Cat6a cable is two times more than that of a Cat6 cable, not to mention the cost of equipment that works in 10Gbps. As expected, 10Gbps connections will become standardized and affordable in five to ten years. Only then would it be worthwhile to invest in expensive Cat6a cables when cabling a house or any structure under construction.


All in all, there are many differences between Cat6 and Cat6a cables, and you should make decisions according to your needs. If a project requires 10Gbps over longer distances, Cat6a is a better choice. If a project requires capability to project against crosstalk and provide better performance, also Cat6a is a good choice. However, if a shielded cable isn’t necessary, and a lighter option will operate best, Cat6 is you first choice. For Cat6 and Cat6a cables, if there is any need or doubt, please feel free to contact us. FS.COM is looking forward to helping you solve your problem.