What kind of network cable should the POE switch choose? Everyone should be familiar with POE power supply. In the final analysis, it is the power supply of the network cable, not the traditional power supply. Since it is powered by the network cable, the carrier is the network cable, and the success of the POE power supply lies in the network cable.
Currently known non-standard network cable materials on the market mainly include copper-clad steel, copper-clad aluminum, copper-clad iron, etc. These cables have a large resistance and are not suitable for powering POE. The 802.3af standard requires that the output power of the PSE output port is 15.4W or 15.5W, and the received power of the PD device after transmitting 100 meters cannot be less than 12.95W.
POE switch should choose the network cable? POE switch selection network cable points
Standard network cables can naturally meet the needs of POE, but since many network cables on the market are non-standard, ONV / optical network will take a look at how to choose the appropriate power supply line for POE switches today? What other network cables are suitable for POE? POE switches are inseparable from the website in the process of power supply, so how should the network cable be selected?
The network cable must be connected according to the standard of 568A or 568B, and must be connected with 8 wires, and the length must be within 100 meters. The better the quality of the network cable, the higher the stability of the transmission. At least it is a category 5 network cable. If the budget cost is sufficient, you can choose a category 6 network cable with a longer transmission distance and better results.
1. Super Category 5 line
Cat5e line has the advantages of small attenuation and less crosstalk, and has higher attenuation crosstalk ratio and signal to noise ratio, and smaller delay error. Cat5e line is mainly used for Gigabit Ethernet.
2. Category 6 line
The transmission frequency of this type of cable is 1MHz ~ 250MHz. The Category 6 line system has a large margin for the comprehensive attenuation crosstalk ratio at 2000mhz. It provides twice the bandwidth of Category 5e. The transmission performance of Category 6 cabling is much higher than that of Category 5e, and it is most suitable for applications with transmission rates higher than 1Gbps.
3. Important differences between Super Cat 5 and Cat 6 lines
Category 6 lines have improved performance in terms of crosstalk and return loss. For a new generation of full-duplex tell network applications, excellent return loss performance is very important. At the same time, the basic link model has been cancelled in the six types of standards, and the star topology is not limited to the standard. The permanent link length of the wiring distance is required to not exceed 90 meters, and the channel length does not exceed 100 meters.
POE switch should choose the network cable? POE switch selection network cable points
In order to achieve good POE power supply results, it is generally recommended to use Category 5 network cables, Category 5e network cables, and Category 6 network cables. The internal material of the network cable is also very important. Do not use any aluminum wire, copper clad aluminum wire, copper clad iron wire, iron core wire, etc. It is best to use pure copper wire.
Basically, there are logos on the network cable. The logo of Category 5 cable is "CAT5", the logo of Super Category 5 cable is "CAT5E", and the logo of Category 6 cable is "CAT6". In addition, the characters printed on the plastic wrap of the true Category 5 line are very clear, round, and basically not jagged. The print quality of the fakes is poor, some fonts are not clear, and some are severely jagged.
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