Computer Network Cables – Types and Uses Frequently Asked Questions
Many types of network cables are used to establish different computer networks. These cables are used as per the various requirements of various types of computer networks. Before setting up a network, you need to know the varieties of network cables.
To set up a computer network, you need to understand several basic terms. The use of switches, hubs, and cables in a computer network is common, but for maximum efficiency, the correct type of devices and cables are required. The cables differ from each other in terms of data transmission speed, crosstalk reduction and installation modes. Find answers to your most frequently asked questions (FAQs) about the different types of network cables and their uses.
Q. What is an unshielded network cable?
A. Unshielded twisted pair cables are widely used with Ethernet networks. The twisted pairs of wires in the cable, as the name suggests, are not shielded. Eight individual copper wires (22 or 24 gauge) are twisted together to form four pairs that restrict signal corruption due to electromagnetic interference. UTP cables must meet specifications that regulate the number of turns allowed in the defined length. A relatively smaller diameter of this cable is beneficial during installation. The speed and performance of this cable is from 10 to 1000 Mbps and it is the most cost-effective network cable. This cable is extremely popular because it can be used effectively with most major network infrastructures.
Q. What is a shielded network cable?
A. In shielded twisted pair cables, a metal foil is used to wrap each pair of copper strands which is then completely covered with a metal mesh. STP not only reduces external disturbances, such as EMI and RFI radiation, but also electrical noise in cables, such as crosstalk and pair-to-pair coupling. It is usually installed with the STP data connector, but can also use an RJ connector base. Unlike UTP, the number of twisted pairs in this cable is only two and they are comparatively more difficult to install. When installing, you must ensure that the metal shield at both ends is properly grounded.
Q. When do I need a shielded cable and what type do I need?
A. The main use of shielded cable is to strengthen the signal transmission through the cable and protect it from disturbances such as crosstalk, electromagnetic interference (EMI), and radio frequency interference. This interference usually occurs when there is twisting or kinking of neighboring structures. This causes data transmission to slow down. Common sources that cause disturbances are large motors and generators, radio towers, and high-voltage light fixtures.
Q. What is a crossover cable?
A. A crossover cable, also known as a crossover cable, is a network cable used to connect two network devices without the need for a hub or switch. These cables are distinctively terminated at one end with green and orange switched pairs. This cable also allows you to directly access hardware on the same network.
Q. What is a solid wire?
A. Inside the jacket of a solid cable, also known as a single-strand cable, there is only one solid piece of copper wire. Solid cables provide mechanical robustness and because it is a single conductor, this cable can be used for structured cabling within a building. In an insulation displacement connector, it is easier to place solid wires.
Q. What is a stranded cable?
A. A stranded cable consists of numerous thin copper wires bundled together within a jacket. Each of these thin strands within the cable can be conveniently bent and flexed. Due to their flexibility, these cables are mainly used to make patch cords that can be easily plugged, unplugged and installed. Even if the twisted cables are frequently twisted, they do not corrupt or affect signal strength.
Q. What type do I need, solid or stranded?
A. Although both solid and stranded cables have the same signal strength, stranded cables are considered better for short lengths due to their flexibility. On the other hand, solid cables are much better for long cable runs.
Q. What is the maximum length?
A. The recommended maximum length for network cables is 330 feet (100 m), which is based on solid cable, as it is the preferred option for maximum length. Always make sure to use repeaters of the length of the connection cables. The distance between two of the hoses should be 30 feet (8 m). Another thing to pay attention to is the flex of the cables. Since these are rated with the lowest flex capabilities, the signals slow down in the event of severe flex.
Q. What is RJ45?
A. Just as lines on the highway control traffic, connectors at the ends of cables align cables to physical locations within themselves. In network installationRJ45 connectors are specifically used to connect Ethernet devices.