Data Cabling

Sentinel work with our partners to provide the full solution, with a combined knowledge of IT networks, structured cabling & telephone systems we can project manage the entire installation from start to finish.

• Traditional telephony cabling
• Cat5e data cabling
• Cat6 data cabling
• OM2 and OM3 fibre optic cabling
• PSTN and ISDN installation
• Broadband and lease line installation
• Excellent rates for all landline calls
• UK based support desk

CAT5 & CAT5e Cabling

[Q] What’s the difference between CAT 5 cable and CAT5e cable?

[A] CAT 5 cable and CAT 5e cable have several differences, the most important are as follows:

  • Network support – CAT 5 cable will support 10/100 Ethernet. That is, Ethernet and Fast Ethernet. CAT 5e cable will support Ethernet, Fast Ethernet, and Gigabit Ethernet. CAT 5e Cable is completely backwards compatible, and can be used in any application in which you would normally use CAT 5 cable.
  • Less cross talk – Cross talk is the electrical interference that results when one wire’s signal effects another wire’s signal. CAT 5e cable has been improved over CAT 5 cable in this respect, and cross talk has been greatly reduced.
  • Bandwidth – This is directly related to network support, in the sense that the bandwidth is the information-carrying capacity of a system. The greater the bandwidth, the greater the information-carrying capacity in a given period of time. CAT 5e cable is rated at 350 megahertz, and it is this increased bandwidth (compared to CAT 5 cable) that allows it to support Gigabit Ethernet.

CAT5e & CAT6

[Q] What is the difference between CAT 6 and CAT 5e cable?

[A] Currently there is a great deal of confusion among Ethernet cable buyers concerning whether to purchase Cat5e, or to use Cat6. Most of this confusion comes from a misunderstanding by the buyer that buying Cat6 cable will give them an “all gigabit” network. This is not the case. Unless every single component in the network is gigabit rated, then you will never have a gigabit network, because your network will always run at the speed of your slowest device. Cat5e cable of good quality can run near or at gigabit speeds, it just cannot be “certified” for this use. By comparison, Cat6 is designed especially for gigabit use, and is certified to operate at said speed. It becomes a matter of whether or not you want to pay all that extra money, for little or no noticeable improvement in the performance of your network. In most cases, it makes more sense to go with Cat5e. It is for this reason that most of your new installations in the private sector are going with Cat5e. It is more economical, performs well, and is readily available in many colours. Many IT professionals when asked about why they specified Cat6 for a specific job, often responded stated that they “wanted the best they could get.” This is the line of thought behind many purchases of cable.

What is the difference between OM2 and OM3 fibre?

Multimode fibre cabling is a common choice to achieve 10-Gbit/sec speeds over distances required by LAN enterprise and data center applications. But several grades of high-bandwidth laser-optimized fibre are available for use in high-speed network installations, and each with a different reach and data-rate capability. It can be challenging to select the most suitable fibre grade for a given system. It may even be necessary to mix fibre already deployed across the network with newer, higher grades.

•50/125-µm (OM2) fibre, used to achieve 1-Gbit/sec data rates and higher;

•50/125-µm (OM2+, OM3, and OM3+) fibre, used to achieve 10-Gbit/sec data rates and higher. OM2+ and OM3+ fibre grades offer nearly double the bandwidth of their parent fibres (“+” represents extended-reach OM2 and OM3 fibre

Request a Free Callback

If you know you just need IT Services send us your name and number and we’ll see if we can help. Get an answer in minutes and save time by speaking to a real person.