50ohm Corrugated RF Coaxial 7/8" Wire Feeder Cable With Fire Retardant Jacket

1.First of all, let's have a specific understanding of what twisted pair is

1. Twisted pair: As a transmission medium, it is composed of two thin copper wires wrapped in insulating material and wound together at a certain ratio

Super Class 5 twisted pair, consisting of four pairs of intertwined wires, totaling eight wires.

2. Why twist the two wires in pairs?

Because this mutual entanglement changes the original electronic characteristics of the cable. This not only reduces its own crosstalk, but also maximizes the prevention of interference from signals on other cables.

3. Twisted pair classification:

1) Twisted pair cables can be divided into 2 pairs, 4 pairs, and 25 pairs based on their number of pairs. (For example, 2 pairs are used for telephones, 4 pairs are used for network transmission, and 25 pairs are used for telecommunication large pair cables)

2) According to whether there is a shielding layer, it can be divided into two categories: shielded twisted pair (STP) and unshielded twisted pair (UTP).

3) According to frequency and signal-to-noise ratio, it can be divided into 3 categories, 4 categories, 5 categories, and over 5 categories. Nowadays, many places have already used Category 6 or even Category 7 wires. Used in computer network communication with at least three categories. The following is a list of various line descriptions:

Class I: mainly used for voice transmission (Class I standards were mainly used for telephone cables before the early 1980s), not for data transmission

Class 2: The transmission frequency is 1MHz, used for voice transmission and data transmission with a maximum transmission rate of 4 [please use civilized language] ps, commonly seen in old token networks that use the 4 [please use civilized language] ps standard token passing protocol.. I"

Class III: Refers to the cables currently specified in the ANSI and EIA/TIA568 standards. The transmission frequency of this cable is 16 MHz, used for voice transmission and data transmission with a maximum transmission rate of 10 [please use civilized language] ps, mainly used for 10base T

Class 4: This type of cable has a transmission frequency of 20MHz and is used for voice transmission and data transmission with a maximum transmission rate of 16 [please use civilized language] ps. It is mainly used for token based LANs and 10base-T/100base-T.

Category 5: This type of cable has increased winding density and is covered with a high-quality insulation material, with a transmission frequency of 100MHz. It is used for voice transmission and data transmission with a maximum transmission rate of 100 [please use civilized language] ps. It is mainly used for 100base T and 10base T networks, which are the most commonly used Ethernet cables.

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