Our main task is to carry huge amounts of information at marvelous speeds. Considering all barriers, twists and lacks, it appears to be not an easy task. That is why all cables, wires and connectors ought to be of a great quality and meet all standards sanctioned by BICSCI.
Who define worldwide standards for Network Cabling?
There are three major institutions, which control quality network cabling almost all over the world. They are following: The Institute of Electrical and Electronics Engineers – responsible for developing new protocols, the American National Standards Institute (ANSI), and the Telecommunications Industry Association / Electronic Industry Alliance (TIA/EIA) – develop criteria for testing procedures of voice and data cabling.
In order to find out typical problems related to network cabling, you can talk to any IT manager in your company. It can be surprising, but more than 40% of all issues occur because of cable breakages and connectors. Companies all over the world spend thousands on it every single year.
· Low attenuation · Poor near-end crosstalk · Poor attenuation-to-crosstalk ratio · Poor delay skew · Impedance · Echo · Splices in cable
Category 5 cables or simply Cat 5 is a common twisted pair cable with high signal integrity. However, they were dislodged by Cat 5e that has better isolation and stable signal. Such cables are used to carry signals for voice services, token ring, and ATM.From the very beginning, specification for Cat 5 was defined in ANSI/TIA/EIA-568-A, with clarification in TSB-95. These documents specify performance characteristics and test requirements for frequencies of up to 100 MHz.
Cables ANSI/TIA/EIA-568-B.2-1 refer to Cat 6 and used for Gigabit Ethernet and other network protocols. It has better specifications for crosstalk and system noise. The cable standard is suitable for 10BASE-T / 100BASE-TX and 1000BASE-T (Gigabit Ethernet) connections. It provides performance of up to 250 MHz.
Category 7 cables are more popular in Europe then Cat 5 and Cat 6. They even surpass other categories in specifications for crosstalk and system noise. This effect was achieved with the help of additional layering and individual wire pairs.