How long network

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Customer Reviews. No customer reviews found. Write Your Own Reviews Only registered users can write reviews. The installer then needs to ensure that the deployment process does not overstrain the cable. Of the three techniques commonly used - pulling, pushing and blowing - only pulling creates undesirable stretching tensile stress. Unlike metal, glass does not suffer fatigue by being compressed, and so the mild compression caused during pushing causes no harm to the fiber. Once deployed, the local environment has a big impact on fiber life.

Elevated temperatures can accelerate crack growth, but it is the presence of water that has been historically of most concern. The growth of cracks under stress is facilitated by water leading to "stress corrosion". You can check what the tendency of a fiber to suffer stress corrosion is by reviewing its "stress corrosion susceptibility parameter", much more conveniently referred to as "n". A high n value around 20 suggests a durable fiber and coating. Bearing in mind the four factors above, how can you calculate the lifetime of your fiber network?

To do this, a network planner needs to take into account two inputs:. Combining the predicted flaw distribution with crack growth theory has generated several optical fiber lifetime models, which can be seen here. In general, these models give a probability of failure for any given fiber km over a chosen lifetime, of somewhere between 20 and 40 years.

For correctly installed tier 1 fiber, the failure probability over such a timeframe is of the order of 1 in , In comparison, the chances of a fiber being damaged by manual intervention, such as digging, over the same timeframe is about 1 in 1, Quality fiber, installed by benign techniques and by careful installers in acceptable conditions should, therefore, be extremely reliable - provided it is not disturbed.

It is also worth pointing out that cable lengths themselves have rarely failed "intrinsically", but there have been failures at joints where the cable and joint type are not well matched, allowing the fibers to move - for example, due to temperature changes.

This leads to over stress of the fiber and eventual fracture. A cable that extends past meters may well still work, but the chances of connectivity issues increase the further you push this limit.

Unlike fiber which can carry and maintain a signal over vast distances of around 60 miles, Ethernet cable is much more limited due to the electrical signals degrading over longer distances.

This is especially true when incredibly thin wires are used, as they are in Ethernet cable. The further the electrical signal is pushed, the more sensitive the data traveling along it becomes, potentially resulting in degradation. It may be tempting to use fiber within your home network, but for many people, it is unlikely that you will ever approach the meter limit of standard Ethernet.

Plus, fiber would be completely overkill and work out to be quite expensive. Within reason, longer runs of Ethernet cable will not result in reduced download or upload speeds. If using Cat5e cable that has a maximum transmission speed of 1 Gbps, the speeds you receive will be pretty much the same regardless of whether it is a 1-meter run or a meter run. Should you be using an older form of Ethernet cable like Cat5, though, you are more likely to see a decrease in speed the longer the cable is.

The take-home message is that you are more likely to get away with maintaining the speed over a longer run if using Cat5e or Cat6 cable that is capable of 1 Gbps compared with Cat5 which is limited to Mbps.

When measuring the length of your Ethernet cable to see if you are approaching that meter limit, it is important to remember that this limit is for a single run. You are not limited to meters total from your router to the device you wish to connect. Here are a few different ways you can measure the length of an Ethernet cable, with some being more practical than others:. You will need to have access to the full run of cable in order to measure it accurately as well as having a tape measure that is actually long enough.

Most bulk reels of Ethernet cable will have footage markings on the outside shielding. This is ok if you are only just starting a new reel of cabling as these markings are really only intended on letting you know how much cable remains in the box.

In order to measure the cable, you would need to know the number on either end of the cable and also have confidence that nothing has been spliced along the way. If you would prefer not to have to make your own Ethernet cable and want the convenience of them being pre-made, the length of the cable will clearly be visible in the product description. Although you get to know the length of the cable straight away, buying pre-made cables can work out to be quite expensive compared to making your own, especially if you need many separate cables at differing lengths.

If you want the easiest solution and the best results, use a network testing tool to measure the length of a run of Ethernet cable.