How to tell if a network cable is good or bad

At present, the most common fake network cable in the market is up to three categories of four counterfeit five categories and super five lines; or fake brand names with miscellaneous brands. So, how to distinguish between true and false? Wiring expert black and white Bear has written to warn users that you can distinguish between true and false by the following methods. The

is first identified from the network cable identification. The three-class line identification is "CAT3", bandwidth 10M, suitable for 10 gigabit nets, at present, the basic has been eliminated; five types of line identification is "CAT5", bandwidth 100M, applicable to the network under hundred trillion; the logo of Super five type line is "CAT5e", bandwidth 155M, is the mainstream product at present; line six is labeled "CAT6 ", bandwidth 250M, used for erecting gigabit network, is the trend of future development." Second, by looking at this approach we can identify most fake 5 class/Super 5 line. The real 5 line of online plastic wrapping on the printed characters is very clear, sleek, basically without jagged. Fake handwriting printing quality is poor, some fonts are not clear, and some are seriously serrated. Authentic 5-Class line is labeled "Cat5", the Super 5 category is labeled "5e", and fakes are usually labeled with uppercase letters "such as CAT5", "5E" words.

Second, feel with your hands. If the "see" method is still not discriminant, you can further through the "touch" method to feel the true and false 5 type/Super 5 line in the material difference. True 5 class/Super 5 line texture is relatively soft, this is mainly in order to adapt to different network environment requirements, twisted-pair cables generally use copper wire to do the conductor core, relatively soft (because some network environment may require a small angle cable for bending, if the wire is hard and easy to cause circuit breakers.) While some unscrupulous manufacturers in the production in order to reduce costs, in the copper added other metal elements, made out of the wire is more hard, not easy to bend, use easy to produce disconnection. ---http://bianceng.cn (learning computer)

again, cut with a knife. This step can only use scissors to remove a small section of plastic foreskin outside the line, so that exposed 4 pairs of core lines. Here, we still use the "see" method to further discriminate, real 5 class/Super 5 line 4 on the core line white that should not be pure white, but with the pair of the core line color of the gray, this is mainly to facilitate the user in the production of Crystal head when the difference between the line pair. Fakes are usually pure white or are not of obvious color. Another point is 4 to the core wire winding density, true 5 type/Super 5 type wire winding density moderate, the direction is counterclockwise. The false line usually has a small density and the direction may be clockwise (less), mainly because it is easier to make, so the production cost is small.

Finally, with a fire. You can test the twisted pair in a high temperature environment and look at the 35 ℃ to 40 ℃, network cable outside the rubber will not become soft, authentic network cable is not soft, false is not necessarily; there are real network cable outside the glue has flame-retardant, and some of the false is not flame retardant, not in line with the safety standards, you may wish to try to buy.