What is the difference between network cable that affects the speed of the Internet? For example, category five and six
Introduction to the differences between various categories of network cables (such as six categories and five lines)
Generally, the network cable is Ethernet network cable, that is, the twisted pair (Twisted Pair). It is a twisted pair of two -pair lines from two interrelated metal wires to be twisted according to a certain winding density.
This article mainly introduces the classification and differences of twisted twisted lines.
Classified by electrical properties
Classified according to the nature of electrical, the twisted wire can be divided into: first type (CAT1), Types (CAT2), three types (CAT3), four types (CAT4), five types (CAT5), super five types (CAT5E),, CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), CAT5E), Cat5e, Six types (CAT6), super six types (CAT6A), and seven types (CAT7). Among them, there are three types of lines, five lines, super five lines, six lines, and the latest seven lines transmitted in Ethernet. The following introduces the introduction:
– Class line:
The maximum frequency bandwidth of the cable is 750kHz, which is used for alarm system, or is only suitable for voice transmission (one type of standard is mainly used for telephone cables before the early 1980s), not for data transmission.
The maximum frequency bandwidth of the cable is 1MHz, which is used for data transmission of voice transmission and maximum transmission rate 4Mbps. It is common in the token network that uses the 4Mbps specification tokens transfer protocol.
Refers to the cable specified in the ANSI and EIA/TIA568 standards. The transmission frequency of the cable is 16MHz, and the maximum transmission rate is 10Mbps (10Mbit/s). Token ring, the maximum network segment length is 100m, and the RJ form connector has faded out of the market.
The transmission frequency of this type of cable is 20MHz, which is used for voice transmission and maximum transmission rate 16Mbps (referring to the data transmission of 16Mbit/S token ring “, which is mainly used for the token-based local area network and 10Base-T/100Base-T. The maximum network segment is 100m and is not widely used in RJ form connectors.
This type of cable increases the winding density. A high -quality insulation material on the jacket. The maximum frequency bandwidth of the cable is 100MHz and the maximum transmission rate is 100Mbps. It is used for data transmission of 10Mbps for voice transmission and maximum transmission rate. It is mainly used for 100Base for 100Base -T and 1000BASE-T network, the maximum network segment is 100M, using RJ forms. This is the most commonly used Ethernet cables. In the twisted cable, different lines have different twisted lengths. Generally, the 4 -pair twisted twisted cycle is within the length of 38.1mm, twisted twisted in the direction of the counterclockwise, and the twisted twisting length of a pair of wire pairs is within 12.7mm. As shown below:
Five types of non -shielding twisted twisted lines are not resistant.
Super five lines:
Over 5 categories have a low attenuation, less string disturbance, and have higher attenuation to the ratio (ACR> and the signal -to -noise ratio (SNR), smaller latter, and the performance is greatly improved. Super 5 lines are mainly used. For Gigabit Ethernet (1000Mbps).
The super five lines use 4 wound pairs and one anti -roller. The color of the line pair is exactly the same as that of the five lines.
The frequency of transmission of this type of cable is 1MHz ~ 250MHz. The six types of wiring systems should have a large amount of comprehensive attenuation comparison than
10OM. As shown below:
There are certain differences in appearance and structure in appearance and structure. Not only does the insulation cross skeleton not only increase the four -pair lines of the twisted twisted lines in the four grooves of the cross skeleton, and the diameter of the cable is diameter. More thicker. The cross skeleton in the center of the cable is rotated with the length of the length, and the four pairs of wires are stuck in the groove of the skeleton to maintain the position of the four pairs of twisted wires to improve the balance characteristics of the cable and the string disturbance attenuation.
Super six or 6A:
The transmission bandwidth of this type of product is between six and seven categories. The transmission frequency is 500MHz, the transmission speed is 10Gbps, and the standard outer diameter is 6mm. Like the seven types of products, the state has not yet introduced formal testing standards, but there are such products in the industry, and various manufacturers have announced a test value.
Super six -type wire angina is dense and the wires are relatively thick. As shown below:
The seventh category is a type of 8 -core shielding line, each pair has a shielding layer (usually metal foil shielding Dintek), and then there is a shielding layer outside the 8 core (generally a metal woven network screen hidden Dintek), interface and interface and The current RJ-45 is the same. As shown below:
The frequency of transmission is 600MHz, the transmission speed is 10Gbps, the single -line standard outer diameter is 8mm, and the standard outer diameter of the multi -core wire is 6mm. The larger the type, the newer the version, the more advanced technology, the wider the bandwidth, and of course the more expensive.
Classification of whether there is a shield
According to the whether there is a shield, the twisted wire is divided into shielded twisted twisted pair (STP) and the unshielding twisted pair (UTP).
Shielding twisted tie
There is a metal shielding layer between the twisted twisted pair and the outer insulation cover. The shielded twisted lines are divided into STP and FTP (FOIL TWISTED-PAIR). STP refers to each line that has its own shielding layer, and FTP only plays a shielding device on the entire cable, and the two ends are correct when they are grounded. Therefore, the entire system is required to be a shielding device, including cables, information points, crystal heads, and wiring racks. At the same time, the building needs a good grounding system. The shielding layer can reduce radiation, prevent information from being eavesdropped, and prevent the entry of external electromagnetic interference, so that the shielding twisted twisted wire has a higher transmission rate than similar non -shielding twisted pair.
Our various types of network products support connecting the internet cable. The shielding network cable can shield the electromagnetic interference of the surrounding environment due to a circle of metal shielding layers in the outer skin. No special precautions. Non -shielding twisted twisted line
Non -shielding Twisted Pair (abbreviated UTP) is a data transmission line that consists of four pairs of transmission cables of different colors, which are widely used in Ethernet and telephone lines.
Non -shielded twisted wire cables have the following advantages:
1. No shielding jacket, small diameter, saving the occupied space, low cost; ⒉. Light weight, easy to bend, easy to install;
3. Reduce the string to minimize or eliminate; 4. It has flame retardant;
5. It has independence and flexibility, suitable for structured comprehensive wiring. Therefore, in the comprehensive wiring system, the non -shielding twisted lines are widely used.
Then, then, then
The above is the introduction and description of Colour high speed cat6 4pairs 24AWG utp cable network cable cat6a patch cord, I hope it can be helpful to you.