Structured Cabling 
Structured Cabling
     
    

      

  
   
   

In the past, buildings could have several different cabling systems for different communications systems, for example; block wiring for voice, thin ethernet, RS232 and Token Ring etc.

     

The ideal solution is to install a standard cable and connector type throughout a building which could, with additional equipment, be used to support all or most of the different type of systems in use. This is known as Generic Cabling.

    

Also, for true flexibility, it would be desirable to have this generic cabling installed and ready for use at all possible locations within a site. This would allow a department to expand or to move to another area with minimum disruption, more importantly saving costs! This is commonly known as Flood Wiring.

     

A structured cabling system consists of outlets, which provide the user with an RJ45 presentation. Each user outlet is cabled back to a rack cabinet using an individual cable containing four twisted pairs, this cabling is known as the 'horizontal cabling'. In most cases, cable which meets the Category 5e specification is used for the horizontal cabling. This cable is terminated onto a patch panel and presented as an RJ45 outlet with different size panels from 16 to 48 way thus providing a connection to the required service.

In a true structured cabling systems, the horizontal cabling and user outlets are the same for all services, so that any outlet can be configured for voice, Ethernet, RS232, video or other service. As user requirements change, the service provided on the outlets can be changed simply by changing the patching configuration in the rack cabinets. If necessary, an adapter is used in the outlet to convert it to the service being provided for example, a video balun will provide the standard RGB, composite video outputs required for CCTV or BT style plug for a telephone systems.

    

Flexible and reliable cabling is essential to a productive network. Fully structured UTP Cat5e & 6 cable is provided form the best manufacturers in the industry and installed by trained qualified engineers to the highest standards.

    

Category 5e, like Category 5 is a 100MHz classification. However, the performance requirements of a Category 5 Enhanced system are more stringent. Category 5e reliably supports 100BaseTX and ATM 155 protocols over copper cabling.
Gigabit Ethernet and ATM 622 can also be supported but take the cable to it's limits by utilizing all 4 pairs equally split with 250Mbps being transmitted.

    

Category 6 or class E is a 200MHz classification and has not been ratified to date. An installation in category 6 cable must use the same manufactures patch/fly leads and outlets to reach the above performance and pass the current tests.

  
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