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What is the single most important reason to pay attention to faulty terminations and excessive horizontal wiring spans?
Wiki User
∙ 12y ago
Proper cable termination is a basic requirement for two nodes on a network to communicate. Poor terminations can lead to loss or noise-and consequently, errors-in a signal. TIA/EIA has specified two different methods of inserting twisted pair wires into RJ-45 plugs: TIA/EIA 568A and TIA/EIA 568B.
Crossover cable-A twisted pair patch cable in which the termination locations of the transmit and receive wires on one end of the cable are reversed.
Straight-through cable - A twisted pair patches cable in which the wire terminations in both connectors follow the same scheme.
Proper cable termination is a basic requirement for two nodes on a network to communicate. Poor terminations can lead to loss or noise-and consequently, errors-in a signal. TIA/EIA has specified two different methods of inserting twisted pair wires into RJ-45 plugs: TIA/EIA 568A and TIA/EIA 568B. Crossover cable-A twisted pair patch cable in which the termination locations of the transmit and receive wires on one end of the cable are reversed.
When installing horizontal cable, it is important to avoid any sources of
Electromagnetic interference (EMI), such as elevator motors, portable
Heaters, electrical wiring, air conditioning, metal beams, and walls.
Horizontal cable may be run under carpets, along ceiling tiles, over beams, frames, through wiring trays, through firewalls. Cable lengths should be tested after installation and before equipment is attached.
The best practice for installing cable is to follow the TIA/EIA 568 specifications and the manufacturer's recommendations. Be careful not to exceed a cable's bend radius, untwist wire pairs more than one-half inch, or remove more than one inch of insulation from copper wire. Install plenum-rated cable in ceilings and floors, and run cabling away from where it might suffer physical damage. If you follow both the manufacturers' installation guidelines and the TIA/EIA standards, you are almost guaranteed success. Many network problems can be traced to poor cable installation techniques.
Wiki User
∙ 12y ago
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