• Structured Local Area Networks

    Computech Business Services Ltd recommends the adoption of Structured Cabling standards in all office premises. The presentation below is intended to serve as a guideline and introduction to the concepts involved in the issue of structured cabling and shall assist to strengthen your confidence in the proposed system. Many network administrators keep hearing that the network is down because of some or the other reasons. Various researches indicate that in many cases, the network is down on account of inferior cabling systems and quality of equipment used. And installing standards-complaint structured cabling systems can eliminate much of this downtime.

    Another important factor that needs to be taken into account is that the structured cabling system, though it outlives most other networking components, represents just five percent of the total network investment.

    The structured cable is the only one that needs to be installed to contend with the needs of telephone, video and data communications now and in the future. It is a system that provides a very "structured" approach to the entire cabling system—a single-mixed media network that handles all information traffic like voice, data, video, and even big complex building management systems.

    In brief, it could be described as a system that comprises a set of transmission products, applied with engineering design rules that allow the user to apply voice, data, and signals in a manner that maximizes data rates. Structured cabling divides the entire infrastructure into manageable blocks and then attempts to integrate these blocks to produce the high-performance networks that we have now come to rely on. To the user, this means investment protection.

    In addition to investment protection, structured cabling also provides administrative and management capabilities. All cables originating from the different work locations are terminated on a passive centralized cross-connect in the network room. Simple labeling and colouring mechanisms provide for easy and quick identification of work outlets. Hence, it provides for a single point for all administrative and management requirements.

    Another underlying factor is management of change. It must be realized that system architectures keep changing as the system evolves. And the cabling architecture should be able to change with minimal inconvenience. The provision of a central administrative panel provides the flexibility to make additions, moves, and changes.

    The changes can be facilitated with simple switch over of patch cords. Apart from this, structured cabling is also technology independent. The advantages of Structured cabling are:

    • Consistency – A structured cabling systems means the same cabling systems for Data, voice and video.
    • Support for multi-vendor equipment – A standard-based cable system will support applications and hardware even with mix & match vendors.
    • Simplify moves/adds/changes – Structured cabling systems can support any changes within the systems.
    • Simplify troubleshooting – With structured cabling systems, problems are less likely to down the entire network, easier to isolate and easier to fix.
    • Support for future applications – Structured cabling system supports future applications like multimedia, video conferencing etc with little or no upgrade pain.

    Another primary advantage of structured cabling is fault isolation. By dividing the entire infrastructure into simple manageable blocks, it is easy to test and isolate the specific points of fault and correct them with minimal disturbance to the network. A structured approach in cabling helps reduce maintenance costs too.

    Structured cabling system is fast becoming the norm for small, medium and large networks. Computech Business Services Ltd is the only company in Malawi that design and implement this service.



  • Wide Area Network

    wanA wide area network (WAN) is a network that covers a broad area (i.e., any telecommunications network that links across metropolitan, regional, national or international boundaries) using leased telecommunication lines. Business and government entities utilize WANs to relay data among employees, clients, buyers, and suppliers from various geographical locations. In essence, this mode of telecommunication allows a business to effectively carry out its daily function regardless of location. The Internet can be considered a WAN as well, and is used by businesses, governments, organizations, and individuals for almost any purpose imaginable Computech Business Services provide these services to corporate clients.