Introduction to the cat5e network cables

Views: 11     Author: Site Editor     Publish Time: 2021-12-16      Origin: Site

Introduction to the cat5e network cables

I have introduced a lot of Cat6 cables, Cat7 cables, and even Cat8 cables, but the most common Cat5e network cables have gradually faded out of our vision. Up to now, it seems that Cat5e network cables have been rarely used, especially in terms of transmission speed, which are difficult to compete with other network cables. Is it necessary to use Cat5e cable in the future?

Many people still think that it is more expensive to use Category 7 or even Category 8 cables. The ultimate reason is still to be found in Cat5e cables. Let’s start with the most basic ones. Cat5e can still be used alone.

The structure of the cat5e network cable


The CAT5e network cable is composed of copper wires, high-density polyethylene insulation and an outer sheath. Each CAT5e cable has four copper wires in it, and its tail is connected to an RJ45 connector (crystal head). There are two types of CAT5e network cables, straight-through and crossover. We mainly introduce the straight-through type.

Wiring method of Cat5e network cable

Each pair of copper wires in the CAT5e cable has a specific color insulating layer for easy identification. Therefore, during the wiring process, the standard color code of the CAT-5 cable must be followed for the wiring operation.

There are two standards recognized by ANSI, TIA and EIA for the connection of the straight-through network cable: T568A and T568B. Both standards can be used. However, T568B is considered by many to be better than the T568A wiring standard.

The difference between Cat5e single-shielded network cable and Category 5e double-shielded network cable

Shielded network cables are divided into single-shielded network cables (wrapped with a layer of aluminum foil paper for twisted-pair cables) and double-shielded network cables (a layer of braided netting is added on the basis of aluminum foil paper). Shielded network cables can effectively organize other high-power wires and strong power sources. Electromagnetic radiation interference greatly reduces the bit error rate of signal transmission and plays a role in shielding interference.

Can the Cat 5e network cable still be used?

Support, Cat5e network cables should be eliminated

1. The transmission bandwidth of CAT5e network cable is low

Now it has entered the optical fiber era. The highest transmission rate of Cat5e is 1Gbps, the bandwidth frequency is 100MHz, and the maximum communication distance is 300M. Cat6 cable and Cat7 cable are much faster than it.

cable Transmission bandwidth Transmission rate
cat5 cable 100MHz 100Mbps
cat5e cable 155MHz 1000Mbps
cat6 cable 250MHz 1000Mbps
cat6a cable 500MHz 10Gbps
cat7 cable 600MHz 10Gbps

2. The internal structure of the cable is not good

Compared with the Cat5e network cable, the Category 6 network cable adds an insulated cross frame. The four pairs of twisted-pair cables are placed in the four grooves of the cross frame, and the overall structure is more stable.

It is best to use the best network cable for installation now

When many users install it, the first thing they think of is to buy the latest one, which can be used for a longer time in the future. Although the super five types may still be useful now, they may not be able to be used in the future.

No, the Cat5ee network cable is still very useful now

Cat5e network cable has its own advantages

Since the development of Cat5e network cable, it has low attenuation, less crosstalk, higher attenuation to crosstalk ratio (ACR), signal-to-noise ratio, and smaller delay error, and its performance has been greatly improved.

Cat5e cables are affordable

In the installation process, in addition to performance, price is also an element that needs to be considered. Compared with Category 6 or even Category 7 network cables, the price of super five cables is relatively stable, whether it is shielded or unshielded, and meets daily needs.

The diameter of Cat 5e cable is thinner

Category 6 cables and Category 6 cables are thicker than the other one, and their flexibility is greatly reduced during installation, and the wiring requirements are higher. Category 5 network cables do not have this concern.

Category 6 and Category 7 crystal heads still need to be paired

At present, the crystal head is still the leading role of 8P8C. In layman’s terms, if you use Category 7 or Category 8 network cables, you need to design the connector mode separately to increase its carrying capacity. However, the current application is not widely used, which causes the cable transmission The bandwidth is high, but the disadvantage that the crystal head does not match requires further development.

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