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Views: 922 Author: Tony Publish Time: 22-08-2019 Origin: Site
In use, the computer network cable consists of several types that are usually adjusted to the needs, conditions, network topology, protocols and the size of a certain computer network. For example, there are small computer network cables that are used in small amounts (eg via Ethernet), but there are also almost unlimited uses of computer network cables (eg via internet interconnection). Another example is a condition where the network allows only one type of cable that can be used, or there are other conditions that actually allow the use of cables with a combination of more than one type.
There are at least 3 types of cables that are included in the category of computer network cables. To understand what types of computer network cables covering the criteria and how to use them, here are the full explanation:
Coaxial cable is a type of cable consisting of two carriers which one of the conductor is in the middle of the cable and is surrounded by the other conductor with a circular pattern. Coaxial works by delivering current or electrical signals from source to destination.
Coaxial cable types are currently being abandoned because ports for BNC connectors are rarely found on computer devices or network devices such as switch and routers. Installation of the network coaxial cable is difficult and need expertise esktra especially in making or installing connectors.
The coaxial cable parts are as follows.
Outside Insulation – Outer jacket (outer jacket) which is the outermost part to protect all parts of the cable.
Copper Mesh – Some coaxial cables have a braid shield, some have a foil shield, and others have both a braid and foil shields. These shields can supply ground for the carrier wire (copper) and help protect the copper wire from EMI and RFI.
Insulation – Plastic insulation which is the coating of conductor cable.
Copper Wire – Copper wire is a wire conductor at the center of the cable and is made of copper and may be either solid or stranded
Use of Coaxial cable
In its use within the network, the current coaxial cable has been replaced by the Twisted Pair cable described later. Typically, this coaxial cable is used on the type of network that has a bus network topology and ring topology.
Coaxial Cable Disadvantages
One of the major disadvantages of this type of coaxial cable in the network is because it has a limited range and quality of transmitting data, so it is rarely used. In addition, coaxial cable is also considered less flexible, especially when compared with twisted pair cable.
Twisted pair cable is a cable that consists of several cables that are paired together. Just like a coaxial cable, the workings of Twisted Pair cables are by transmiting current or electrical signals from source to destination. Twisted pair cables have a range no farther than 100 meters, The speed varies from 10 Mbps to 10000 Mbps (10 Gbps).
Types of Twisted Pair Cables
Twisted pair cable is divided into several types, namely STP (Shielded Twisted Pair), FTP (foiled twisted pair), and UTP (Unshielded Twisted Pair).
UTP (unshielded twisted pair)
The UTP cable in its application does not support a protection from its spiral set. Because it does not have any protection on the part of the cable, this type of UTP cable has a major disadvantages is very vulnerable to high voltage and also magnetic field. UTP cable is widely used in telephone network cable, and also small LAN network.
FTP (Foiled twisted pair)
FTP has a better specification than UTP network cable, because the cable layer is protected by some kind of foil, so this makes the FTP type cable has better resistance to noise and magnetic interference than UTP cable.
STP (shielded twisted pair)
Almost the same as FTP, STP cable also has protection inside the cable layer. The only difference is the material used to coat the arrangement of twisted pair cable. STP also has a good ability in warding off noise and magnetic interference.
Unlike the previous two types of network cables that use copper as electrical-conductor element, this fiber optic cable is made of high-quality silica glass, although they can both be made of plastic as well. Because it is made of glass or plastic as well, the signal sent by Fiber Optic is a pulses from source to destination.
The fiber optic cable parts are as follows:
Outer Jacket – which is the outermost part to protect all parts of the cable.
Strength Member – strengthening fibers function to keep the cable from a hard collision.
Coating – The coating works to keep the cable from bending.
Cladding – The cladding serves as a barrier with the main core of fiber optic cable.
Core – Main core serves as a medium of data transmission.
Use of fiber optic cable
Initially, fiber optic cable is only used for special purposes, such as the use of backbone networks in a large company. But over time, the network using fiber optic become increasingly popular and used for general purposes, maybe even now the internet network in your home already supports connectivity using fiber optic
Fiber Optic Advantages
Able to transmit signals at high speed
Simple and also flexible
Can transmit pulses
Resistant to radio or electromagnetic waves
Product manager : Tony
Email: tony@zion-communication.com
