Cable
is a medium through which information moves from one network device to another.
Network cable installation is a task which requires critical efficiency. A
network design should incorporate aspects like bandwidth consideration,
crosstalk, cable conformance, calculation of approximate transmission error
rates, cable management etc.
Determining the bandwidth requirements:
The
primary concern is to identify the current bandwidth requirements, which varies
according to the size of the network or the number of workstations connected to
the network. If the company plans to expand the business and to increase the
number of employees over the next two years, then the network bandwidth needs
also will increase accordingly. The most accurate assessment of your networks
bandwidth requirements can be obtained by using a network analyzer. Failure in
determining the future bandwidth requirements can end up in losing a lot of
money.
Identifying the network
environment
The
network environment determines the type of cabling that should be selected.
Optical fibre cables can be used for faster bandwidth requirements but at the
same time it’s prone to transmission problems due to dirt and scratches on the
fibre. Twisted copper wires can also be used for network cabling installations
like CAT 5e, CAT 6 etc. These cables have more noise immunity than the older
categories but they are susceptible to radio frequency and electromagnetic
interference problems.
Cabling Installation
Selection
of the correct termination tool enables to install CAT5e jacks 6 to 8 times
faster. Future reworks can be reduced by using punch-down tools, to increase
the accuracy and reliability of the network. It will increase the client
confidence. The three types of commonly used punch-down tools are manual,
impact and multi-wire. A basic impact tool has a spring-loaded head, the
installer can compress it with very little force and when once the spring
reaches its full compression it’s released automatically and the force is
transferred to the head of the impact tool which then seats the conductor. Most
impact tools helps to reduce hand fatigue. Other advantages of impact tool are
ease of use, speed and consistency of termination. The tool helps to connect
each wire in to the corresponding slot in order to make a permanent connection.
Other newer features of tools include replaceable blade heads and wall-friendly
designs to accommodate close-to-close wall installations. Faster and reliable
terminations using efficient tools and less rework can minimize up to 80% of
cost for cabling installation.
Fibre Optic Cables Unshielded Twisted Pair Cables Coaxial Cables
For the
development of a successful network it’s necessary to understand the
characteristics of different types of cables and how they are related to other
aspects of a network is necessary. The different types of cables used in
cabling installations are: Unshielded twisted pair cables (UTP), Shielded
twisted pair cables (STP), Fibre optic cables, Coaxial cables etc. Unshielded
twisted pair cables are available in different categories with different
properties.
Before
delivering to the customer the job must be tested. Variety of test tools which
vary in price, performance and application are available. Test tools can be
verification tools, qualification tools or certification tools. Verification
test tools can be used to find wiring faults like errors in wire pairing,
opens, shorts or split pairs in the cable installation. Certification is the
last stage required by the manufacturers to grant warranties for new cable
installation. Certification testing guarantees cabling system compliance to
industry standards. Qualification testing is a new category of testing that
determines if an existing cabling link can support the requirements for fast
Ethernet, VoIP, or Gigabit Ethernet. Cable testing assures that the installed
cabling links will provide the demanded transmission capability to support the
communication needs of the user.
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