Rj45 Tester Essay
BREF INTRODUCTION AND BACKGROUND ABSTRACT The aim of this project is to design and construct a LAN cable tester - Rj45 Tester Essay introduction. It is a tool for testing LAN cables to find all the problems associated with the cable. The fault in any of the wire in the cable can easily be detected by the use of this small but useful instrument and the speed can be enhanced very easily which was earlier dumped by the cable fault. . One of the primary objectives of an Engineer is to endeavour to deliver the best product or the most efficient services at the lowest cost to the end user.
Our project was found to meet the expected results. This project uses coding in assembly language to provide a very efficient algorithm for carrying out the required task. The block diagram, the associated technology, algorithms, the software and hardware requirements are all well illustrated to assist good understanding. As of true for most project effort of this nature, progress also contributes after the work. For this reason we devoted a significant effort to the selection of techniques whose value is likely to remain applicable in a rapidly involving body of knowledge.
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We had immense benefit from this project in that we learned a great deal in the domain of Network Cable Testing which was entirely a new field for us to work and we trust that this project gives contribute in this field. As is true of most writing efforts of this nature, progress continues after the work on the manuscript stop . For this reason, we devoted significant effort to the selection of the material that we believe is fundamental, and whose values likely to be applicable in a rapidly evolving body of knowledge. Introduction gives an overview about the project.
Circuit The recent technologies used are explained in brief. Moving on to the Diagram and description, Various parts of the project are involved in order to explain various steps taken in project. Description of each block is given in detail to give a clear vision of each step. INTRODUCTION A cable tester is an electronic device which is used to verify the electrical connections in a cable or other wired assembly. Generally a cable tester consists of a source of electric current, a voltmeter and a switching matrix used to connect the current source and the voltmeter to all of the contact points in a cable.
In addition to these parts a cable tester may also have a microcontroller and a display to automate the testing process and display the testing results. A cable tester is used to verify that all of the intended connections exist and that there are no unintended connections in the cable being tested. When an intended connection is missing it is said to be “open” (as in Open circuit). When an unintended connection exists it is said to be a “short” (as in Short circuit). A connection is said to be “miss-wired” if it has two faults: it is open to the correct contact and shorted to an incorrect contact.
Generally, the testing is done in two phases. The first phase, called the opens test makes sure each of the intended connections is good. The second phase, called the shorts test makes sure there are no unintended connections. Network Cable Tester is a tool for testing LAN cables, Data communication cables and Tele-communication cables. It finds all problems associated with testing such faults as opens, shorts, cable integrity and it also finds cable length of individual cables or distance to a fault. DESCRIPTION
One of the most popular experiments that users with multiple PC’s will try is the installation of a home network or LAN. LAN stands for Local Area Network; the correct term applied to any network installed in a limited physical area. In the not-too-distant past, it was common practice to install home LAN’s using coaxial cable, as it was simple to install, readily available, prefabricated in standard lengths and it required no additional components besides the Network Interface Card (NIC) and some hardware like tees and terminators.
The alternative was to use unshielded twisted pair (UTP) cable, usually called 10Base-T cable. This cable resembles the standard telephone cable found in most homes today, except that it is heavier, having four pairs of wires instead of two pairs. Because of the additional four wires, the modular plug used with 10Base-T is an eight-conductor device, which is known as anRJ-45 connector. The term 10Base-T is used to indicate the character of the LAN, with the “10? referring to the maximum transmission speed of 10Mbps.
The “Base” portion of the designation refers to “baseband signalling” and is used to indicate that the medium is carrying Ethernet signals only. The “T” suffix indicates that the transmission medium is a twisted-pair wire. Using 10Base-T with more than two PC’s requires the installation of an additional connectivity device. This device can be a hub, a switch, or a router, depending upon the particular requirements of the LAN. All of this means that the user will be installing multiple connecting cables of varying lengths, and possibly of varying circuit schemes.
In general, there will be one cable connecting each PC to the hub. Additional cables may be used to chain multiple hubs together, or to connect the hub to a broadband modem, or to connect a second NIC in certain PC’s to another LAN. 10Base-T cables are also available prefabricated in standard lengths. It is not the intent of this project to go into any detail on the steps involved in the fabrication of LAN cables. Rather, it deals with the steps in making a tester for these cables that one can use in conjunction with the multimeter to quickly verify the proper assembly of 10Base-T cables.
The choice between using prefabricated cables and “rolling your own” is a matter of personal preference. Some users will choose to simply purchase prefabricated cables, plug them in, And hopefully have an operable LAN. Other will decide to assemble the LAN cables as they are needed, which provides the option of having cables that are exactly the right length. An added benefit is found when actually pulling the cables into place, as the cable connector will not require large holes to be drilled in walls, ceilings, or floors.
Depending upon the number of cables required, overall costs may well even out, as the cost savings realized with bulk cable will be reduced by the cost of the necessary cable assembly tools. The UTP jacket stripper is usually built into the crimper tool assembly. Of course, prices for the necessary tools will vary based upon supplier and area. When the LAN doesn’t perform as expected or maybe doesn’t even seem to connect at all, then obviously the time is at hand for some basic LAN troubleshooting and troubleshooting will sometimes require test equipment.
The purpose of this project is to create a simple but reliable 10Base-T cable tester or LAN cable tester. This project is a basic continuity tester rather than a performance level test device. It is intended for use as a troubleshooting tool for basic connectivity testing rather than for performance issue resolution. However, it will work as a basic continuity tester for any standard UTP/RJ-45 cable as used in an Ethernet installation. AIM AND OBJECTIVES The main aim of this project is to design a microcontroller base rj45 cable tester In-depth study into digital electronics
Familiarity with instrument, component and equipment of electrical and electronics of different types. ? To design and construct a RJ 45 cable tester at the lowest possible cost. ADVANTAGES • It is a tool for testing any type of cable- LAN cables, Data communication cables and Tele-communication cables. • It finds all the faults associated with the cable such as opens, shorts, cable integrity and distance to a fault. • It is a small and efficient instrument to detect the fault in any of the wire in the cable and the speed can also be enhanced which was earlier dumped by the cable fault. •
It does not require pulling the cables out of the place, drilling of large holes in walls, ceilings, or floors because of the presence of cable connector. • It reduces the overall costs by replacing only the required cables that have faults, instead of replacing a bulk of cable. • Its circuit is simple to use, easily implemented, cheap and can be assembled with ease. • It has a low energy consumption, eco-friendly and ease of maintenance. SCOPE AND LIMITATION Network Testing is the prime application of LAN Cable Tester. It holds its firm existence in the fast growing Internet broadband present scenario.
The fault in any of the wire in the cable can easily be detected by the use of this small but useful instrument and the speed can be enhanced very easily which was earlier dumped by the cable fault. Moreover we can find its application in the wired communication channel. If a single wire in the cable is not working it will produce some interference resulting to noise, hence it will distort the information content and proper information would not be transferred or received. By the use of LAN Cable Tester we can find the actual fault in our network and make it appropriate.
The implementation of this LAN cable tester is efficient to those organizations and industries where the use of LAN wire connection is more prominent. ADVANTAGES It is a tool for testing any type of cable- LAN cables, Data communication cables and Tele-communication cables. • It finds all the faults associated with the cable such as opens, shorts, cable integrity and distance to a fault. • It is a small and efficient instrument to detect the fault in any of the wire in the cable and the speed can also be enhanced which was earlier dumped by the cable fault. •
It does not require pulling the cables out of the place, drilling of large holes in walls, ceilings, or floors because of the presence of cable connector. • It reduces the overall costs by replacing only the required cables that have faults, instead of replacing a bulk of cable. • Its circuit is simple to use, easily implemented, cheap and can be assembled with ease. • It has a low energy consumption, eco-friendly and ease of maintenance. MATERIALS AND METHOD The method to be employed in the implementation of this project includes simple modularization of the whole system.
This help in the simplification and understanding of the rj45 tester. While some of the materials to be used include: • LEDs • Connecting cables • Regulators • Oscillator • Latches • Step down transformer • Diodes • 89s52 Microcontrollers • Crystal oscillator • Capacitor • LAN wire connector • Resistor Block diagram of RJ45 cable tester [pic] Design procedure This project is to be carried out in three phases: • Phase one: This involves having the schematics of the circuit • Phase two: The circuit is simulated to check for the behavior of each circuit component. and to check for end result (s) Phase three: At this stage, the implementation of the circuit diagram is carried out. • Phase four: At this stage the physical construction of circuit is to be implemented on an electronics board. CONCLUSION Network Testing is the prime application of LAN Cable Tester. It was said earlier “…hopefully have an operable LAN”. What is meant by that remark? Well, what happens when the LAN doesn’t perform as expected or maybe doesn’t even seem to connect at all? Obviously that time we all need some basic LAN troubleshooting and troubleshooting will sometimes require test equipment.
The purpose of this project is to create a simple but reliable LAN cable tester. It is intended for use as a troubleshooting tool for basic connectivity testing. Even if a single wire in the cable is not working, it will produce some interference resulting to noise. Hence it will distort the information content and proper information would not be transferred or received. By the use of LAN Cable Tester we can find all the problems associated with the cable and the actual fault in our network to make it appropriate.