Thickness of the cable and transmission rate it matter?
A friend asked, cable thickness on it? Why Category 6 cable is faster than the transfer rate of Category 5 cable? That's a good question, is the most we usually use a network cable, network cable on a variety of belonging is rarely understood, doing a lot of projects, we have the illusion, that is not super-Category 5 and Category 6 cable difference today we look at the difference between category 6 and category 5 cable in there. A, Comparative properties and Category 5 cable five lines of Category 6 cable (CAT5):
Transmission frequency of 100MHz, voice transmission and a maximum transfer rate of 100Mbps for data transmission, mainly for 100BASE-T and 10BASE-T network. This is the most commonly used Ethernet cable, the class cables increase the winding density, coat a quality insulating material.
Five lines (CAT5e): transmission frequency of 100MHz, mainly for Gigabit Ethernet (1000Mbps). Attenuation, less crosstalk, and has a higher ratio of crosstalk attenuation (ACR) and SNR (StructuralReturn Loss), less delay error, performance is greatly improved.
Six lines (CAT6): transmission frequency of 250MHz, the transmission rate is higher than ideal for the application of 1Gbps, mainly for Gigabit Ethernet (1000Mbps). Six twisted pair in the shape and structure of five or over five twisted pair has some differences, not only increases the insulation skeleton cross, the four pairs of twisted wires are disposed four cross frame the grooves, and the diameter of the cable is also thicker.
Super-six or 6A (CAT6A): transmission frequency is 200 ~ 250 MHz, the maximum transmission speed of up to 1000 Mbps, mainly used in gigabit networks. Super-six lines are six lines of an improved version of the same is an unshielded twisted pair cable predetermined ANSI / EIA / TIA-568B.2 and class ISO 6 / E level standard, crosstalk, attenuation and SNR than other aspects have been greatly improved.
Seven types of line (CAT7): transmission frequencies up to at least 500 MHz, transfer rate up to 10 Gbps, it is mainly in order to adapt the application and development of Gigabit Ethernet technology. The line is a class ISO 7 / F stage a latest standard unshielded twisted pair.
Second, the difference between the super-category 5 cable and line 6
A difference: the loss of a different, six lines and the UTP network cable One important difference is improved crosstalk and return loss performance aspects. Home improvement proposal directly using six cable.
Difference between the two, a core wire of a different thickness, the UTP cable core between 0.45mm ~ 0.51mm, six cable core is between 0.56mm ~ 0.58mm, than the six UTP cable appearance many crude cable;
Three differences: the different line structure, the outer skin of the UTP cable has a "CAT.5e" identity, six cable The most obvious is the "cross frame", the epidermis "CAT.6" identification. Although over unshielded twisted pair can provide up to 1000Mb / s of bandwidth, but often require special support by means of expensive equipment.
"Six" refers to a six unshielded twisted pair (CAT6). Six unshielded twisted pair parameters have a substantial increase in bandwidth extends to 250MHz or higher.
Six twisted pair in the shape and structure of five or over five twisted pair has some differences, not only increases the insulation skeleton cross, the four pairs of twisted wires are disposed four cross frame the grooves, and the diameter of the cable is also thicker. Central skeleton cross the cable length changes with the rotation angle of the four twisted pairs in the recess card framework, maintain the relative position of the four twisted pairs, crosstalk and improve the balance characteristic of the cable attenuation. In addition, to ensure a balanced structure of the cable is not damaged during installation.
Six bare copper unshielded twisted pair 0.57mm diameter (gauge of 23AWG), insulated wire diameter of 1.02mm, UTP cable having a diameter of 6.53mm. Of course, the thicker the better. Signal stability.
Third, the difference between the super-six line 7 and line type of the super-six lines: maximum transmission frequencies up to 500MHz, is twice six lines, primarily for Gigabit (1OG) network, an outer skin marked "CAT.6A", in addition, the super-six support 10G Ethernet cable, will be similar in appearance to identify 10Gigabit; 6 cable, there are two, generally single stranded bare copper 23AWG diameter, approximately equal to 0.573 mm, there are six categories of 24AWG wire, thickness about 0.511 mm.
Seven types of lines: Seven types of performance wire and cable near the super-six, using copper core 8, the shield has even greater performance, 10Gbps transmission rate can be achieved, for data center applications. Each shield has a pair of layers (typically metal foil shield) and the outer 8 core and a shield layer (typically a metal shield Braided Shield woven wire mesh), the same RJ-45 interface. Shield (typically a metal braid shield mesh) Seven types of line + line S / FTP Cat.7 (HSYVP-7) a maximum transmission frequency of 600MHz mask (typically a metal foil shield), the frequency of the transmission line is based Chao Qi 1000MHz , seven types of full support for Gigabit.
Seven types of core wire using a 0.58mm diameter nearly oxygen-free copper quality transmission conductor, a little thicker than the category 6, the choice of chemically foamed insulation, which greatly improves transmission to the single conductor. From the point of view of the cable core, Category 5, Category 6, Category 7 cable, the diameter of the wire core has increased, the quality of copper used, the faster the transmission rate, the more stable.