As the technology goes forward and internet becomes vital for people, important tools like free registry cleaner and anti-spyware is seen in many homes. And as more and more people uses internet it is now important that the speed of ones internet is fast. Thats why there is not only several tools like windows registry cleaner avaible but there are several networking cable standard available now which are recommended by IEEE.

Some of these are as follows:

Types of Transmission

Baseband - Data bits are defined by discrete signal changes.

Broadband - Uses analog signals to divide the cable into several channels with each channel at its own frequency. Each channel can only transmit one direction.

Physical media

Twisted pair - Wire is twisted to minimize crosstalk interference. It may be shielded or
unshielded.

m UTP-Unshielded Twisted Pair. Normally UTP contains 8 wires or 4 pair. 100 meter
maximum length. 4-100 Mbps speed.

m STP-Shielded twisted pair. 100 meter maximum length. 16-155 Mbps speed. Lower
electrical interference than UTP.

Coaxial - Two conductors separated by insulation such as TV 75 ohm cable. Maximum length of 185 to 500 meters.

Thinnet - Thinnet uses a British Naval Connector (BNC) on each end. Thinnet is part of the RG-58 family of cable. Maximum cable length is 185 meters. Transmission speed is 10Mbps. Thinnet cable should have 50 ohms impedance and its terminator has 50 ohms impedance. A T or barrel connector has no impedance.

Thicknet - Half inch rigid cable. Maximum cable length is 500 meters. Transmission speed is 10Mbps. Expensive and is not commonly used. (RG-11 or RG-8). A vampire tap or piercing tap is used with a transceiver attached to connect computers to the cable. 100 connections may be made.

The computer has an attachment unit interface (AUI) on its network card which is a 15 pin DB-15 connector. The computer is connected to the transceiver at the cable from its AUI on its network card using a drop cable.

Coax cable types:

m RG-58 /U - 50 ohm, with a solid copper wire core.

m RG-58 A/U - 50 ohm, with a stranded wire core.

m RG-58 C/U - Military version of RG-58 A/U.
m RG-59 - 75 ohm, for broadband transmission such as cable TV.

m RG-62 - 93 ohm, primarily used for ArcNet.

m RG-6 - Used for satellite cable (if you want to run a cable to a satellite!).

Network Cabling

Only these are part of the IEEE specification for ethernet networks.

Fiber-optic - Data is transmitted using light rather than electrons. Usually there are two fibers, one for each direction. Cable length of 2 Kilometers. Speed from 100Mbps to 2Gbps. This is the most expensive and most difficult to install, but is not subject to interference.

Two types of cables are:

1. Single mode cables for use with lasers.

2. Multimode cables for use with Light Emitting Diode (LED) drivers.

Cable Standards

The Electronic Industries Association and Telecommunications Industries Association (EIA/TIA) defined a standard called EIA/TIA 568 which is a commercial building wiring standard for UTP cable. It defines transmission speed and twists per foot.

Category Speed Notes

None Used for old telephone systems

4Mps

10Mps The minimum category for data networks

16Mps

100Mps Cat 5 network cable, used by most networks today

Data patch, Two pair with foil and braided shield undefined

Flat cable for under carpets with two twisted pair

Plenum cable with two twisted pair. It is safe if you're having a fire.

The maximum transmission length is 100 meters. This cable is susceptible to interference.

STP

Shielded twisted pair has a maximum cable length of 100 meters (328 feet). Data rate from 16 to 155 Mbps. Cables require special connectors for grounding but this cabling method resists electrical interference and is less susceptible to eavesdropping. Costs more than UTP or Thinnet, but not as much as Thicknet or Fiber-optic.