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Explanation of Cat5e Cable
This document will explain the Cat5E cable. The cat5e cable defined in 2001 under TIA/EIA-568-B consists of four twisted pairs of cable in one cable outlet. These twisted pairs of cable are essential in creating high signal integrity. This type of category 5 cable can either be shielded (a conductive material limiting the electromagnetic fields between locations) or unshielded. This cable is an enhanced version of the original category 5 cable. The enhancement of this cable includes a far end crosstalk which keeps a high signal to noise ratio. Crosstalk refers to keeping the ratio the same even with external sources and other pairs interfering within the cat5e cable.
Standard Associated with The Category 5 Cable
The cable is best used with the standard 1000BASE-T. The name given to the standard 1000BASE-T specifies what the cable will work with most efficiently. The number in the standard reflects the transmission speed in Megabits per second (Mbit/s). The BASE is also known as the baseband. Baseband refers to no FDM or no frequency division multiplexing meaning every signal has complete control over the wire. The T in the standard refers to the type of wires in the cable, twisted pairs, which reduces crosstalk (FEXT and NEXT).
Types and Uses of a Category 5 Cable
There are two types of Cat5e cable. Those types are stranded and solid conductor form. A standard form is much more flexible and is better at bending. The standard form of this category 5 cable has a reliable connection with insulation piercing connectors. However, the solid form is most reliable to an insulation displacement connector and less expensive.
Looking for SCSI Cables and other resources?
This enhanced category 5 cable is used for computer networks as a structured cable. The cable is mostly used for Ethernet connections and this is because of or due to its limitations in the length. This cable cannot exceed 328 ft or 100m in length. Other uses include basic voice services, token ring and ATM (only up to 155 Mbit/s).
TIA/EIA-568-B defines the cable types, the connector types and the cabling topologies for the cat5e cable. A 8P8C modular connector is usually used for connecting this type to other devices. For termination, the T568A and T568B scheme will be needed. T568B is most commonly used and there is no connectivity difference between the schemes. Since there is no difference in connectivity between the schemes , either of these can be used but mixed cables cannot be connected in series or it will cause signal degradation.
Some manufactures will sell a cable extender (up to 150 feet) to use for connecting a host computer to another USB device. This extender can be used to transfer data from a USB port in a camera, printer or other USB device to a computer. One of the main reasons someone would want to purchase an extender is that it provides the ability to place the device at a distance from the computer since a cat5e cable length cannot be more than 328 ft (100m). |
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