All About Cat7

Network has become an indispensable part of our daily life. Many homes and businesses today deploy network with either a wired network connection or a wireless connection, and these two network connection methods have their own advantages: wired connection is typically faster than wireless connection and has lower latency; while wireless connection makes it easier to get access to the network from nearly any convenient location. As network technology has kept stepping forward, these two types of network hardware also continue to advance, satisfying the requirements of users. Take wired connection for example, now a newer cable category is Cat7 ethernet cable. This article will focus on Cat7 and share the advantages and disadvantages of Cat7 cabling.

Overview of Cat7

Cat7 ethernet cable is not currently recognized by TIA/EIA, but it is designed to support 10G Ethernet with distance up to 100 meters. It can offer transmission frequencies of up to 600 MHz, which is 6 times larger than Cat5e and 2.4 times larger than Cat6. The Cat7 ethernet cable contains four twisted copper wire pairs, just like the earlier standards, and shielding has been added for individual wire pairs and the cable as a whole. In addition, Cat7 ethernet cable is terminated with GG45 (GigaGate45) connector, which is still compatible cat5e cable and cat6 cable with RJ45 connector.

Cat7 ethernet cable

Advantages And Disadvantages of Cat7 Cabling

Though Cat7 ethernet cable is a newer cable category, it is not the best choice for all network deployment. Why? Keeping reading and you will find the answer in the following part.

Advantages
  • Cat7 has higher bandwidth of up to 600 MHz, which is 6 times larger than Cat5e (100 MHz) and 2.4 times larger than Cat6 (250 MHz).
  • Cat 7 has an overall shield as well as individual shielding of every pair. It performs better to protect against outside interference. Therefore, it is suitable for installing in strong RFI & EMI environment.
  • Cat7 is thicker, more bulky, and more difficult to bend.
  • Cat7 is regarded as the most durable cable and has a longer lifespan of fifteen years than cat5e cable and cat6 cable.
  • Cat7 is compatible with preceding Ethernet cable standards like Cat5e and Cat6. as a result, users can move Cat5e cable or Cat6 cable from existing copper based LAN and install Cat7 without having to change the existing electronics.
Disadvantages
  • Cat7 ethernet cable is not currently recognized by TIA/EIA. It is not a solid, established industry standard.
  • Cat7 is very heavy. Individual pair and overall shielding increases the overall weight and size of Cat7, which makes it not an job for Cat7 cabling. Larger & stronger pathway and more stringent bend radius (100 mm or 4 inch) are required.
  • Cat7 is more expensive. Individual pair and overall shielding also means higher labor costs and more work towards cable termination.
  • Cat7 cabling may cause ground loop problems. If both ends of the cable are connected to ground, it will lead to ground loops which are a major cause of noise, hum, and interference in audio, video, and computer systems. They can also create an electric shock hazard, since ostensibly “grounded” parts of the equipment, which are often accessible to users, are not at ground potential.
Conclusion

For home network deployment, it is not a great option, because it is more expensive and Cat7 cabling is complicated. However, Cat7 is suitable for the place where needs high speed data transmission and is high EMI environment. Therefore, in order to get a successful network deployment, you have to make a careful plan, be familiar with environment, confirm the requirement of network deployment and choose the right transmission media. FS.COM offers the best and most versatile copper cables including Cat5e, Cat6 and Cat7 products. For more details, please visit our site.

UTP Cables Selection Guide

Since the copper cable is capable of the advantages, such as less expensive electronics and flexibility, the fiber optic cable can’t just replace it. As a result, while the consumer electronics keep going increasingly wireless, many LANs still rely heavily on copper cables to handle all the heavy lifting when it comes to transmitting data. For example, if you want to plug your computer into a broadband Internet connection, you just need a cable to complete this connection. This paper will introduce some common categories of copper cable used in today’s networks.

Category 3

The CAT3 cable is an UTP (unshielded twisted pair) cable whose data transmission rate is at the speed of 10Mbps. It is one of the oldest copper cable, and was used on a large scale in the early 90’s when it was the industry standard for computer networks. Of course, it is still used today for wiring offices and homes. Although it is still used in two-line phone configurations, it is no longer the the darling of the times when deploy the networks due to the advent of the Category 5 cable.

Category 5

As the successor of the CAT3 cable, CAT5 cable is capable of superior performance. Compared with CAT3 cable, CAT5 cable is the same with it in the structure–UTP, but has higher transfer rate, up to 100Mbps. The fact is that the speed of 100Mbps is also called Fast Ethernet, so the CAT5 cable has become the first Fast Ethernet-capable cable. But Now, it has been replaced by the CAT5e cable.

Category 5e

The CAT5e standard is an enhanced version of CAT5 cable, which is optimized to reduce crosstalk, or the unwanted transmission of signals between data channels. Similar to CAT 5 in appearance, CAT5e introduces some new wrinkles in the equation. For one thing, CAT5e uses four pairs of copper wire rather than the two that CAT5 relies on. The excellent capacity, that the speed of it can be up to 1000Mbps and the bandwidth can be up to 100 MHz, makes it become the one of the most popularized cable in today’s market. That is also the reason why it can replace the CAT5 cable.

Category 6

Supporting frequencies of up to 250 MHz and the 10BASE-T, 100BASE-TX, 1000BASE-T, and 10GBASE-T standards, it can handle up to 10 Gbps in terms of throughput. Some CAT6 cables are available in STP (Shielded Twisted Pair) forms or UTP forms. Compared with CAT5e cable, it has better insulation and thinner wires which can provide a higher signal-to-noise ratio, and is better suited for environments in which there may be higher electromagnetic interference. However, when deploying a network, the cost of CAT5e cable is much cheaper than CAT6 cable.

Category 6a

CAT6a’s data transmission rate is up to 10,000 Mbps and the maximum bandwidth is 500 MHz. Since it is in the form of STP, a specialized connector is usually needed to ground the cable. When you’re wiring up your home or office for Ethernet for the long haul, CAT6a is the perfect choice in terms of future-proofing.

Category 7

CAT7 cable, also known as Class F, is a fully shielded cable that supports speeds of up to 10 Gbps (10,000 Mbps) and bandwidths of up to 600 Mhz. It consists of a SSTP (screened, shielded twisted pair) of wires, and the layers of insulation and shielding contained within them are even more extensive than that of CAT6 cables. Because of this shielding, It is thicker, more bulky, and more difficult to bend. Additionally, each of the shielding layers must be grounded, or else performance may be reduced to the point that there will be no improvement over CAT6, even worse than CAT5. For this reason, it’s very important to understand the type of connectors at the ends of a CAT7 cable.

Conclusion

When you need a cable to attach your computer to the modem in your home or your office, you can choose the right cable after reading this guide. There are three factors that you should take into consideration: price, the quality of the cables and the kinds of device you have to connect. Fiberstore can offer the most cost-effective solution for your copper cabling, such as CAT3 cable, CAT5e cable and so on. Besides, the price and the quality of these cables are extremely attractive. Wanna buy? Just visit FS.COM.

Originally published at http://www.chinacablesbuy.com/utp-cables-selection-guide.html

Size and Weight Advantages of Fiber Optic Cable over Copper Cable

Size and weight factors are always needed to be taken into consideration when preparing for an cable plant installation. Fiber optic cables are now running existing conduits or raceways that are partially or almost completely filled with copper cable. This is another area where small fiber optic cable has an advantages over copper cable.
In this article, we will do a comparison and try to determine the reduced-size advantage that fiber optic cable has over copper cable. As we already know, a coated optical fiber is typically 250um in diameter. We learn that fiber optic ribbon cable sandwich up to 12 coated optical fibers between two layers of Mylar tape. Twelve of these ribbons stacked on top of each other form a cube roughly 3mm by 3mm. This cube can be placed inside a buffer and surrounded by a strength member and jacket to form a cable. The overall diameter of this cable would be only slightly larger than an RG6 coaxial cable or a bundle of four Category 5e cable.

So how large would a copper cable have to be to offer the same performance as the 144 optical fiber ribbon cable? That would depend on transmission distance and the optical fiber data rate. Take Category 5E cable for example, let’s place a bundle of Category 5e cables up against the 144 optical fiber ribbon cable operating at a modest 2.5Gbps data rate over a distance of just 100m.

A Cat5e cable contains four conductor pairs and as defined in ANSI/TIA-568-B.2 is 0.25” in diameter. Each pair is capable of a 100MHz transmission over 100m. 100MHz transmission carries 200 million symbols per second. If each symbol is a bit, the 100MHz Category 5e cable is capable of a 200Mbps transmission rate. When the performance of each pair is combined, a single Category 5 cable is capable of an 800Mbps transmission rate over a distance of 100m

Now let’s see how many Category 5e cables will be required to provide the same perfor-mance as the 144 optical fiber ribbon cable. The 144 optical fiber ribbon cable has a combined data transmission rate of 360Gbps. When we divide 360Gbps by 800Mbps, we see that 450 Category 5e cables are required to equal the performance of this modest fiber-optic system.
When 450 Category 5e cables are bundled together, they are roughly 5.3 inches in diameter. As noted earlier in this chapter, the 144 optical fiber ribbon cable is approximately the size of four Category 5e cables bundled together. The Category 5e bundle thus has a volume roughly 112.5 times greater than the 144 optical fiber ribbon cable. In other words, Category 5e bundles need 112.5 times more space in the conduit than the 144 optical fiber ribbon cable.

This comparison we just made is very conservative. This distance we used was kept very short and the transmission rate for the optical fiber was kept low. We can get even a better appreciation for the cable size reduction fiber optic cable offers if we increase the transmission distance and the data rate.
In this comparison, let’s increase the transmission distance to 1,000m and the data transmission rate to 10Gbps. The bandwidth of a copper cable decreases as distance increases, just as with fiber-optic cables. Because we have increased the transmission distance by a factor of 10, it’s fair to say that the Category 5e cable bandwidth will decrease by a factor of 10 over 1000m.

With a reduction in bandwidth by a factor of 10, we will need ten times more Category 5e cables to equal the old 2.5Gbps performance. In other words, we need 4,500 Category 5e cables bundled together. In this comparison, however, the bandwidth has been increased from 2.5Gbp to 10Gbps. This means we have to quadruple the number of Category 5e cables to meet the ban width requirement. We now need 18,000 Category 5e cables bundled together. Imagine how many cables we would need if the transmission distance increased to 80,000m. We would need whopping 1,440,000 Category 5e cables bundled together.

These comparisons vividly illustrate the size advantage that fiber optic cable have over copper per cables. The advantage becomes even more apparent as distances increase. Th enormous capacity of such as small cable is exactly what is needed to install high-bandwidth systems in buildings where the conduits and raceways are almost fully populated with copper cables.

Now we have calculated the size advantages of optical fiber over Cat5e cable. Let’s look at the weight advantages. It is pretty easy to see that thousands, tens of thousands, or millions of Cat5e cable bundled together will outweigh a ribbon fiber optic cable roughly one half of an inch in diameter. It’s difficult to state exactly how much less a fiber optic cable would weigh than a copper cable performing the same job – these are just too many variables in transmission distance and data rate. However, it’s not difficult to imagine the weight savings that fiber-optic cables offer over copper cables. These weight savings are being employed in commercial aircraft, military aircraft, and the automotive industries, just to mention a few.

Article source: fibre optic cable manufacturers