How to distinguish between several types of network cables

Methods to distinguish several types of network cables: 1. The internal structures of Category 6 network cables and Category 5 network cables are different. The internal structure of Category 6 network cables adds a cross skeleton; 2. The copper core size of Category 6 network cables and Category 5 network cables Differently, the copper core of Category 5 network cable is [0.45mm] or less.

How to distinguish several types of network cables:

The distinction methods are as follows:

1. Six The internal structures of Category 6 network cables and Category 5 network cables are different. The internal structure of Category 6 network cables adds a cross skeleton. The four pairs of twisted pair cables are placed in the four grooves of the cross skeleton. The cross skeleton in the center of the cable changes with the length. The rotation angle changes;

2. The copper core size of Category 6 network cable and Category 5 network cable is different. The copper core of Category 5 network cable is less than 0.45mm, the copper core of Category 5e network cable is 0.45mm-0.51mm, and the copper core of Category 6 network cable is 0.45mm-0.51mm. The standard one is 0.56mm-0.58mm.

3. Category 5 network cable: The outer cover will be marked with "CAT5" and the transmission bandwidth is 100MHz. It is used for voice transmission and data transmission with a maximum transmission rate of 100Mbps. It is mainly used for 100M network and 10M network. Has been replaced by Category 5e cable.

4. Category 5e network cable: The outer layer is marked with "CAT5e" and the transmission bandwidth can be as high as 1000Mb/s. However, it is generally only used in 100Mb/s networks and only connects desktop switches to computers because Category 5e unshielded network cables require the support of expensive special equipment.

5. Category 6 network cable: The outer surface is marked with "CAT6", which generally refers to unshielded network cables. It is mainly used in Gigabit networks, and its transmission performance is much higher than the Category 5e network cable standard.

Extended information:

Types of network cables

Twisted pair cables can be divided into For unshielded twisted pair (UTP) and shielded twisted pair (STP).

The outer layer of shielded twisted pair cable is wrapped with aluminum platinum to reduce radiation, but it cannot completely eliminate radiation. The price of shielded twisted pair cable is relatively high, and it is more expensive to install than unshielded twisted pair cable. difficulty.

Unshielded twisted pair cable has the following advantages: unshielded jacket, small diameter, saving occupied space; light weight, easy to bend, easy to install; minimize or eliminate near-end crosstalk; with Flame retardant; independent and flexible, suitable for structured integrated wiring.

Common models of twisted pair cables are as follows:

Category 1 line (CAT1): mainly used to transmit voice (Class 1 standard was mainly used before the early 1980s telephone cable), unlike data transmission.

Category 2 line (CAT2): The transmission frequency is 1MHZ, used for voice transmission and data transmission with a maximum transmission rate of 4Mbps. It is common in old token networks that use the 4MBPS standard token passing protocol.

Category 3 cable (CAT3): Transmission frequency 16MHz, used for voice transmission and data transmission with a maximum transmission rate of 10Mbps. It is mainly used for 10BASE--T, a cable specified in the ANSI and EIA/TIA568 standards.

Category 4 line (CAT4): The transmission frequency is 20MHz, used for voice transmission and data transmission with a maximum transmission rate of 16Mbps. It is mainly used for token-based LAN and 10BASE-T/100BASE-T.

Category 5 line (CAT5): The transmission frequency is 100MHz, used for voice transmission and data transmission with a maximum transmission rate of 100Mbps. It is mainly used for 100BASE-T and 10BASE-T networks. This is the most commonly used Ethernet Network cable, this type of cable has increased winding density and is coated with a high-quality insulating material.

Category 5e (CAT5e): The transmission frequency is 100MHz, mainly used for Gigabit Ethernet (1000Mbps).

It has small attenuation, less crosstalk, higher attenuation to crosstalk ratio (ACR) and signal-to-noise ratio (Structural Return Loss), smaller delay difference, and greatly improved performance.

Category 6 cable (CAT6): The transmission frequency is 250MHz, most suitable for applications with transmission rates higher than 1Gbps, mainly used for Gigabit Ethernet (1000Mbps).

Category 6 twisted pair is somewhat different from Category 5 or Category 5e twisted pair in appearance and structure. It not only adds an insulated cross frame, but also separates the four pairs of twisted pairs. Placed within the four grooves of the cross frame, the diameter of the cable is also thicker.

Category 6e or 6A (CAT6A): The transmission frequency is 200~250 MHz, the maximum transmission speed can also reach 1000 Mbps, and it is mainly used in gigabit networks.

Category 6e cable is an improved version of Category 6 cable. It is also an unshielded twisted pair cable specified in ANSI/EIA/TIA-568B.2 and ISO Category 6/E-class standards. Crosstalk, attenuation and signal-to-noise ratio have been greatly improved.

Category 7 line (CAT7): The transmission frequency can reach at least 500 MHz and the transmission rate can reach 10 Gbps. It is mainly designed to adapt to the application and development of 10 Gigabit Ethernet technology. This line is the latest shielded twisted pair in the ISO Category 7/Class F standard.

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