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Ruilianpu network cable manufacturer explains the types of network cables for you
2011-05-18
Ruilianpu network cable manufacturer explains the types of network cables for you
The network cable produced by the network cable manufacturer is indispensable for connecting to the local area network. Common network cables in local area networks include twisted-pair cables, coaxial cables, and optical cables. Twisted pair is a data transmission line composed of many pairs of wires. Its characteristic is that it is cheap, so it is widely used, such as our common telephone lines. It is used to connect with RJ45 crystal head.
It is divided into two types, STP and UTP, the one we commonly use is UTP.
Today, the editor will explain to you what types of network cables are available in the summer.
1. Twisted pair
The English name of the twisted pair is Twisted Pair. It is a transmission medium commonly used in wiring engineering.
Twisted-pair wire uses a pair of mutually insulated metal wires twisted to resist electromagnetic interference with frequencies less than 25MHz. Twisting two insulated copper wires to each other at a certain density can reduce the degree of signal interference. The radio waves radiated by each wire during transmission will be offset by the radio waves emitted by the other wire. The name "twisted pair" also comes from this.
The wire pair is generally formed by twisting a pair of insulated copper wires of 22-24 gauge. In actual use, the twisted pair is a pair of twisted pairs wrapped together in an insulated cable sheath. There are typically four pairs of twisted-pair wires, and there are more pairs of twisted-pair wires placed in a cable sleeve. We call these twisted-pair cables. In a twisted pair cable (also called a twisted pair cable), different pairs have different twist lengths. Generally, the denser the twisted wire, the stronger the anti-interference ability. Compared with other transmission media, the twisted pair is subject to certain restrictions in terms of transmission distance, channel length and data transmission speed, but the price is relatively low.
2. STP
STP (Shielded Twisted Pair) has one or several shielding layers in the twisted pair, which can reduce electromagnetic interference during data transmission, so its stability is high.
3. UTP is UUTP
UTP (unshielded twisted pair) has no shielding layer, so its stability is poor, but its advantage is that it is cheap.
No shielding jacket, small diameter, saving space occupied;
Light weight, easy to bend, easy to install;
Twisted-pair cables are classified according to the ISO/IEC 11801 specification. Common types include Category 3, Category 5, Category 5, Category 6, Category 7, and Category 7. The former has a thin wire diameter and the latter has a thick wire diameter. The types are as follows:
4. Type 1 line: It is used to transmit voice (a type of specification is used for telephone cables before the early 1980s), which is different from data transmission and has been eliminated by the specification.
5. Class II line: The transmission bandwidth is 1MHZ, used for voice transmission and data transmission at a high transmission rate of 4Mbps. It is common in the old Token Ring that uses the 4Mbps standard token transfer protocol, and has been eliminated by the standard.
6. Category 3 cable: The cable has a transmission bandwidth of 16MHz. It is used for voice transmission and data transmission with a high transmission rate of 10Mbps. It is used for 10BASE-T, and is used as low by ANSI/TIA-568.C.2.
7. Four types of cables: The transmission bandwidth of this type of cable is 20MHz. It is used for voice transmission and data transmission with a high transmission rate of 16Mbps. It is used for token-based LAN and 10BASE-T/100BASE-T, which has been eliminated by the specification.
8. Category 5 cable: This type of cable has added winding density and a transmission bandwidth of 100MHz. It is used for voice transmission and data transmission with a high transmission rate of 100Mbps. It is to be used in 100BASE-T and 10BASE-T networks. Class line instead.
9. Cat5e cable: It has less attenuation and less crosstalk. Compared with Cat5e line, it adds near-end crosstalk power and test requirements, and has a higher attenuation to crosstalk ratio (ACR) and signal-to-noise ratio. Delay error, the function has been greatly improved. The large bandwidth of Cat 5e line is 100MHz.
10. Category 6 cable: The transmission bandwidth of this type of cable is 250MHz. The Category 6 cabling system should have a large margin at 200MHz in the attenuation crosstalk ratio (PS-ACR), which provides 2 times the bandwidth of the Super Category 5. The transmission function of Category 6 cabling is much higher than that of the Super Category 5 specification and is suitable for applications with a transmission rate of 1Gbps. An important difference between Category 6 and Category 5 is that it improves the crosstalk and return loss functions. For a new generation of full-duplex high-speed network applications, excellent return loss is extremely important.
11. CAT6e cable: CAT6 cable is an improved version of CAT6 cable, released in 2008, it is also a dual type specified in ANSI/TIA-568C.2 and ISO/IEC 11801 CAT6/EA specification. Stranded cable should be used in 10 Gigabit networks. The transmission frequency is 500 MHz, and the high transmission speed can also reach 10Gbps, which has greatly improved in terms of external crosstalk.
12. Category 7 line: This line is a twisted pair approved in 2002 in the ISO/IEC 11801 Category 7/F specification. It is to adapt to the application and development of 10 Gigabit Ethernet technology. But it is no longer an unshielded twisted pair, but a shielded twisted pair, so its transmission frequency can reach at least 600 MHz, and the transmission rate can reach 10 Gbps.
13. A coaxial cable is a cable with a central copper conductor wrapped in layers of insulated wires. It is characterized by good anti-interference ability, stable data transmission, and low price. It is also widely used, such as closed-circuit television lines. Coaxial thin cables are generally sold at a few yuan per meter in the market, which is not too expensive. The coaxial cable is used to connect with the BNC head. The coaxial cable sold on the market is generally the finished product that has been connected with the BNC head. You can directly choose it.
14. Optical cable
Optical cable is the most advanced network cable at present, and it is cheap and popular. It is composed of many hair-thin glass fibers, that is, optical fibers and insulating sleeves. Because it relies on light wave transmission, its characteristics are excellent resistance to electromagnetic interference, strong confidentiality, high speed, large transmission capacity and so on.
The above is the wire and cable-related knowledge that Xiaobian compiled for everyone in the summer, I hope it will be helpful to us!
Shenzhen Ruilianpu Technology Co., Ltd. is a cable manufacturer specializing in the production of high-quality international standard Cat5e, Cat6, Cat6, Cat7, and Cat8 cables. It can also undertake OEM production of wires and cables. Manufacturing. In the summer, the editor will also update the wire and cable price list on the company’s official website every day. For more cable information, please check the company’s official website www.ruilianpu.com
The network cable produced by the network cable manufacturer is indispensable for connecting to the local area network. Common network cables in local area networks include twisted-pair cables, coaxial cables, and optical cables. Twisted pair is a data transmission line composed of many pairs of wires. Its characteristic is that it is cheap, so it is widely used, such as our common telephone lines. It is used to connect with RJ45 crystal head.
It is divided into two types, STP and UTP, the one we commonly use is UTP.
Today, the editor will explain to you what types of network cables are available in the summer.
1. Twisted pair
The English name of the twisted pair is Twisted Pair. It is a transmission medium commonly used in wiring engineering.
Twisted-pair wire uses a pair of mutually insulated metal wires twisted to resist electromagnetic interference with frequencies less than 25MHz. Twisting two insulated copper wires to each other at a certain density can reduce the degree of signal interference. The radio waves radiated by each wire during transmission will be offset by the radio waves emitted by the other wire. The name "twisted pair" also comes from this.
The wire pair is generally formed by twisting a pair of insulated copper wires of 22-24 gauge. In actual use, the twisted pair is a pair of twisted pairs wrapped together in an insulated cable sheath. There are typically four pairs of twisted-pair wires, and there are more pairs of twisted-pair wires placed in a cable sleeve. We call these twisted-pair cables. In a twisted pair cable (also called a twisted pair cable), different pairs have different twist lengths. Generally, the denser the twisted wire, the stronger the anti-interference ability. Compared with other transmission media, the twisted pair is subject to certain restrictions in terms of transmission distance, channel length and data transmission speed, but the price is relatively low.
2. STP
STP (Shielded Twisted Pair) has one or several shielding layers in the twisted pair, which can reduce electromagnetic interference during data transmission, so its stability is high.
3. UTP is UUTP
UTP (unshielded twisted pair) has no shielding layer, so its stability is poor, but its advantage is that it is cheap.
No shielding jacket, small diameter, saving space occupied;
Light weight, easy to bend, easy to install;
Twisted-pair cables are classified according to the ISO/IEC 11801 specification. Common types include Category 3, Category 5, Category 5, Category 6, Category 7, and Category 7. The former has a thin wire diameter and the latter has a thick wire diameter. The types are as follows:
4. Type 1 line: It is used to transmit voice (a type of specification is used for telephone cables before the early 1980s), which is different from data transmission and has been eliminated by the specification.
5. Class II line: The transmission bandwidth is 1MHZ, used for voice transmission and data transmission at a high transmission rate of 4Mbps. It is common in the old Token Ring that uses the 4Mbps standard token transfer protocol, and has been eliminated by the standard.
6. Category 3 cable: The cable has a transmission bandwidth of 16MHz. It is used for voice transmission and data transmission with a high transmission rate of 10Mbps. It is used for 10BASE-T, and is used as low by ANSI/TIA-568.C.2.
7. Four types of cables: The transmission bandwidth of this type of cable is 20MHz. It is used for voice transmission and data transmission with a high transmission rate of 16Mbps. It is used for token-based LAN and 10BASE-T/100BASE-T, which has been eliminated by the specification.
8. Category 5 cable: This type of cable has added winding density and a transmission bandwidth of 100MHz. It is used for voice transmission and data transmission with a high transmission rate of 100Mbps. It is to be used in 100BASE-T and 10BASE-T networks. Class line instead.
9. Cat5e cable: It has less attenuation and less crosstalk. Compared with Cat5e line, it adds near-end crosstalk power and test requirements, and has a higher attenuation to crosstalk ratio (ACR) and signal-to-noise ratio. Delay error, the function has been greatly improved. The large bandwidth of Cat 5e line is 100MHz.
10. Category 6 cable: The transmission bandwidth of this type of cable is 250MHz. The Category 6 cabling system should have a large margin at 200MHz in the attenuation crosstalk ratio (PS-ACR), which provides 2 times the bandwidth of the Super Category 5. The transmission function of Category 6 cabling is much higher than that of the Super Category 5 specification and is suitable for applications with a transmission rate of 1Gbps. An important difference between Category 6 and Category 5 is that it improves the crosstalk and return loss functions. For a new generation of full-duplex high-speed network applications, excellent return loss is extremely important.
11. CAT6e cable: CAT6 cable is an improved version of CAT6 cable, released in 2008, it is also a dual type specified in ANSI/TIA-568C.2 and ISO/IEC 11801 CAT6/EA specification. Stranded cable should be used in 10 Gigabit networks. The transmission frequency is 500 MHz, and the high transmission speed can also reach 10Gbps, which has greatly improved in terms of external crosstalk.
12. Category 7 line: This line is a twisted pair approved in 2002 in the ISO/IEC 11801 Category 7/F specification. It is to adapt to the application and development of 10 Gigabit Ethernet technology. But it is no longer an unshielded twisted pair, but a shielded twisted pair, so its transmission frequency can reach at least 600 MHz, and the transmission rate can reach 10 Gbps.
13. A coaxial cable is a cable with a central copper conductor wrapped in layers of insulated wires. It is characterized by good anti-interference ability, stable data transmission, and low price. It is also widely used, such as closed-circuit television lines. Coaxial thin cables are generally sold at a few yuan per meter in the market, which is not too expensive. The coaxial cable is used to connect with the BNC head. The coaxial cable sold on the market is generally the finished product that has been connected with the BNC head. You can directly choose it.
14. Optical cable
Optical cable is the most advanced network cable at present, and it is cheap and popular. It is composed of many hair-thin glass fibers, that is, optical fibers and insulating sleeves. Because it relies on light wave transmission, its characteristics are excellent resistance to electromagnetic interference, strong confidentiality, high speed, large transmission capacity and so on.
The above is the wire and cable-related knowledge that Xiaobian compiled for everyone in the summer, I hope it will be helpful to us!
Shenzhen Ruilianpu Technology Co., Ltd. is a cable manufacturer specializing in the production of high-quality international standard Cat5e, Cat6, Cat6, Cat7, and Cat8 cables. It can also undertake OEM production of wires and cables. Manufacturing. In the summer, the editor will also update the wire and cable price list on the company’s official website every day. For more cable information, please check the company’s official website www.ruilianpu.com
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