Shielded Twisted Pair Cables
Pros and Cons
The protective casing/shielding of STP cables works in connection with the other crosstalk-eliminating techniques implemented in Twisted Pair cables, giving it a performance edge over other types like UTP and coaxial cables.
Properly installed STP cables are the most secure of all.
However, the operation of STP cables is not that simple. First of all, they are bulky, as well as fragile. They need to be correctly installed and then regularly maintained, taking into account physical factors like their bending radius and maximum tension, otherwise they could easily get damaged.
They are costlier than other types of cables, and additionally, the cost of their installation and maintenance is high.
STP cables need to be properly grounded. If this is not taken care of, the shielding will have the opposite effect; rather than eliminating cross talk, the cable will start attracting stray signals and interference.
Unshielded Twisted Pair Cables
Since these cables are inexpensive, less bulky, perform satisfactorily when used to provide basic connectivity, are easy to install, and also require less maintenance, they are very popular.
Various categories of UTP cables are available, which have different specifications, including data speed. UTP cables have the ability to match STP cables' data transmission rates.
In the absence of casing, twisted pairs alone are not as capable of blocking out cross talk, and hence, UTP cables depend on other techniques of signal balancing, including the use of devices like filters and baluns.
Due to the fact that they are susceptible to noise, they have limited applications.
Read more at Buzzle: http://www.buzzle.com/articles/comparison-between-stp-cable-and-utp-cable.html
0 comments:
Post a Comment