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Ethernet Technologies and Cabling - Myrouterloginnet.com
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Ethernet Technologies and Cabling

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Ethernet  is an old- established  technology that enables computers to be connected together using wired connections locally . Otherwise known as LANs (Local Network Connection). Ethernet was first invented at the end of 1970. At that time, the server supported till 3 Mbps. As for the Ethernet we use now, it supports 10/100 Mbps speed. Its speed has wide ranges including :fast ethernet and Giga ethernet. Whereas It is still the same old structure of ethernet, the difference lies in the infrastructure and the cabling technique.

Ethernet was first used for the communication of computers via satellite. The transmission speed was 2.94 Mbps. Currently, the types used are 10Mbps or 10 / 100Mbps in general. 95% of the LANs in the world use ethernet. The protocol that ethernet was based upon it previously, was known as CSMA / CD-protocol (Multiple Access / Collision Detect). It is a protocol based on broadcast. This protocol is used to detect collision, due to the fact that it specified how to place the information pack in the communication line.

Today, ethernet is very common with hubs. Hub devices have a simple structure. As  a result, It provides a common route for ethernet, which can be used in more functional but more expensive devices called switches.

The nature of Ethernet work

In order to connect information through 2 computers using the Ethernet technology, there are 3 parties involved. The first party is the recipient, the second party is the sender, and the third party is the data that will be transferred.  For the first and the second party, the physical media access control (MAC) addresses both of them.

First, the Recipient address: A hexadecimal number that can only be recognized by Ethernet network devices, and a serial number that is no longer unique in the world.

Second, the Sender address: The frame contains the sender’s address.

Third, the Data: must be between 46-1514 bytes.

Ethernet Logic Coding System

There are a wide variety of digital sign coding formats. NRZ-L, NRZI, Manchester, differential Manchester and 4B5B.

The basic principle of Manchester encoding is that the transmission is done with vibration. This helps in knowing whether the line is used or not. that is the reason why this type of transport requires ethernet.

Cabling Technologies

Technology develops very fast and cabling is not an exception. The cabling technology is affected by the number of twisted wires inside the sleeve. The more twisters are there in the sleeve, the more it affects on the efficiency and speed of the connection and transfer. Which implies that there are now cabling technologies which have become no longer valid for usage.

However, in this article we will provide you with the most known cabling technologies.

First, Coaxial cabling

It uses a single copper conductor at the center which is isolated by a plastic layer and a braided metal shield. It is hard to install but can support better than twisted pair in longer distances. In this pattern, it has two types: thin coaxial and thick coaxial.

Thin coaxial is also known as 10Base2, which refers to the approximate 200 meters maximum length. Whereas thick coaxial is known as 10Base5, which refers to the approximate 500 meters length, which is its upmost. This type has extra plastic layer for extra protection. On the other hand, it cannot be bent easily and it is hard to install.

Second, STP cabling

It uses a shielded twisted pair of wires inside the sleeve. It is best used for electrical interference. But the extra shielding makes it bulky.

Third, fiber optic cabling

And this is the most recent technology in cabling. It is made of glass and thus, the speed of the connection are the fastest ever. It is designed to transfer light not electronic signals. That is why there is no problem with electric interference. it has better features and capacity than coaxial and twisted cables. That is why it functions the best in video conferencing. There are various grades of fiber but 50 micron laser is the most used one nowadays.




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