Network Cable Tester, Everything You Need to Know

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The quality of the network cable tester is the fundamental guarantee for accurate network cable testing. In actual use, it has an important role, and the application must quickly detect the quality of the network cable tester.

With the popularization and complexity of computer networks, the use of network cable is also increasing. Network cable quality is the basis of network construction, and if it is not good, it will cause a decline in network transmission quality. The network should be transmission performance, especially if network transmission speed is not due to play.

Crystal head quality for the prevention of accidental interruption of the connection has a pivotal role; unreliable connection is the most common problem of inadequate quality, the use of a large number of irresponsible crystal heads will make the network regularly and inexplicably interrupted, wasting a lot of time for the transmission of information, the repair, and maintenance of the trouble, and even some nodes will be regularly out of order, bringing great inconvenience to the user.

When the network has problems, it is necessary to test the connectivity of each network cable. A home tester is a unique tool used to test the performance of network cables, so the quality of a home network cable tester is the fundamental guarantee of accurate testing. According to the literature and research, no special equipment has been found for testing home tester, making it difficult to test the home network cable tester quality.

This paper researches this problem and designs a simple device and method specifically for testing home network cable tester, which can better solve the testing work of home tester and make the quality testing work of related equipment faster and more convenient, which is essential for the quality testing work of network cable tester. It is of great significance for the quality inspection of the network cable tester.

The home network cable tester is a tool for testing 8 network cable wires one by one (or pair by pair), mainly including three primary functions: wire sequence test function, break test function, and short circuit test function.

The home network cable tester includes the main tester and a remote tester. Generally, the main tester and the remote tester contain 8 indicators for the on/off status of the network cable, respectively. When testing, the crystal tips of both ends of the line are inserted into the

The RJ45 ports of the main tester and the remote tester form the test path. Depending on the cable sequence, there are two types of cables: straight-through and crossover. When testing the straight-through line sequence, both the main tester and the remote test end indicator lights up in the order of 1, 2, 3, 4, 5, 6, 7, 8; when testing the crossover line sequence, the leading tester indicator lights up in the order of 1, 2, 3, 4, 5, 6, 7, 8, and the remote test end indicator lights up in the order of 3, 6, 1, 4, 5, 2, 7, 8.

Turn on the test switch. If the main tester and remote test end indicator light up in sequence as required, it means that the network cable line sequence is normal. If the remote test end indicator and the leading tester indicator light up in the same order as the above straight line or cross line indicator lights up in a different order, it means that there is a problem with the line sequence, line sequence test function is complete;

If a wire corresponding to the main tester and the remote test end of the lights are not lit, it means that the wire is broken, the wire short circuit test function is completed; if the detection of a wire, the remote test end at the same time there are multiple lights on, it means that the wire short circuit, the wire fast circuit test function is completed.

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For the common problems of the network cable tester, combined with the principle of the tester and the study’s three primary functions, I designed a simple home network cable tester testing device. The device can simulate the various states of the network cable.

The main body of the home network cable tester is a standard network cable, and this device selects the widely used, high-quality gray category 5 twisted pair cable.

By setting nodes and switches on the eight wires of the cable, the status of the cable can be controlled.

Production process:

• Select the normal network cable that has been pressed with a good crystal head.
• Cut it from the middle (the cable sequence is arranged according to the need).
• Solder the eight inner core wires at the front of the break to the eight input terminals of the eight-channel switch.

The 8 crocodile clips are connected to the output terminals of the controller according to the test requirements.

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Before testing the home network cable tester, the cable tester must be connected to the block diagram given in the home network cable tester testing device.

First, insert the crystal tips of both ends of the testing device into the RJ45 ports of the main tester and remote test end of the home network cable tester under test to form a test path and keep all channels of the switch disconnected before the trial starts.

To ensure the accuracy of the test, generally conduct 3 times of line sequence test, including straight-through line and cross-line sequence test. To apply to a variety of new network cables, need to add an arbitrary line sequence test.

After connecting the equipment, the 8 inner core wires at the back end of the break are connected to the 8 output terminals of the switch via alligator clips following the straight-through line sequence, cross-line sequence, and arbitrary line sequence. Then the 8 channels of the controller are closed to observe the blinking of the indicator light at the remote test end of the home tester under test. The network cable tester line sequence test function is normal, and on the contrary, it means that the tested home network cable tester line sequence test function is not normal.

To ensure the accuracy of the test, this function carries out 3 times break tests, each time selecting any number of wire breaks for testing. After connecting the device, the 8 inner core wires at the back end of the suspension are connected to the 8 output terminals of the 8-channel switch in Figure 2 through alligator clips in order, and then closed any number of switch channels by the relevant test requirements, and observe the indicator lights of the main tester and remote test end of the home network cable tester under test. The home network cable tester break test function is normal; on the contrary, it means that the tested home network tester test function is not normal.

To ensure the accuracy of the test, this function is carried out three times short circuit test. Each time, select any number of wires short circuit for testing. After connecting the device, any number of cables in the eight inner core wires at the back end of the break is connected to the same output terminal of the switch through alligator clips. The rest are connected to the corresponding channels of the control in the corresponding order of straight-through wires; close all switch channels and observe the indicator light of the remote test end of the home network cable tester under test. The home tester short-circuits test function is normal, and vice versa, which means that the tested home network cable tester short-circuits test function is not regular.

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Inject the crystal heads of both end of the cable in the RJ45 ports of the main tester as well as the remote end of the test and then flip off the device into “ON” (S to indicate slower speed) when you do this, the indicator heads on the main tester as well as the remote test end should blink one by one.

1 Straight-through connection test: When testing the straight-through connectivity, the main tester’s indicator will flash from 1-8 in sequence, while the test at the remote end should also be flashing between 1-8 in succession. If this happens, it indicates that the straight-through line connection is in good condition, if not, it needs to be re-tested.

2. Staggered line connectivity test: Test staggered connections The main tester indicator should be between 1 and 8 consecutive flashing, and the test at the remote part of the test must be in the form of 3 4, 5, 2 4,, 7, 8, flashing one after the other. In this case it indicates that the interleaved connectivity is in good condition, if not, it needs to be re-tested.

3. If the line sequence on both ends of the cable is not right test indicator will continue to flash in the range 1-8 flashing one at a time, however the remote part of the tester will be flashing one at a time according to the line number linked with the primary test. In other that way the test at the remote end will not flash in the sequence of (1) (2) and (2).

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Network tester is usually also called professional network tester or network tester, which is a portable and visual intelligent testing device that can detect the operation status of physical layer, data link layer and network layer defined by OSI model, mainly applied in LAN fault detection, maintenance and integrated cabling construction, the function of network tester covers physical layer, data link layer and network layer. So what network tester brands are there?

1, Fluke
Fluke Corporation (Fluke) is the world’s leading manufacturer distribution and service of electronic test instruments. It was founded in 1948 , as a wholly-owned part belonging to Danaher Group. Danaher Group, Fluke is an international company with its headquarters located in Everett, Washington, USA with manufacturing facilities located in the USA, UK, Netherlands and China. Sales and service offices are situated throughout Europe, North America, South America, Asia and Australia. Fluke is a licensed distributor in over 100 countries in the world and employs approximately 2400 people.

2. Bit
Bit TVR1000K validates the actual efficiency of networks cables (10M/100M/1000M) Displays port speeds of the network device duplex, data signal levels, identifies issues between computer and network devices online, and detects physical layer problems in the network cable (open short, open crosstalk etc.).) It also displays the electrical characteristics of network cables (attenuation near-end crosstalk, spread delay, far-end crossing delay offset, etc.) Location of fault points on network cables as well as length tests, fitted with an audio cable locating device for scanning and pinpointing the cable’s direction.

3. Saber
Allows network and cabling personnel to quickly and precisely identify the cable’s location in the panel within the cabinet, or are connected to the hub, switch as well as other network equipment connected to the cable. CTK1015 is able to use three different flashing port indicators that flash at the flashing frequency of network equipment so it doesn’t interfere with the use of the network. However, it is able to quickly locate and pinpoint the network cable connected to network equipment.

4, Naitur
Naitur was established at the time of Beijing Zhongguancun High-Tech Park which is a group of engineers who have a creative and a pioneering spirit. It it is the only high tech company equipped with portable network testing equipment as its most popular product focused on the development and manufacturing of high-quality reliable, user-friendly test equipment for network networks. It is dedicated in the area of mobile monitoring and testing equipment for networks to develop into a world-class supplier.

5. Dadi
Dadi was founded in 1992, and has an authorized capitalization of $30 million Yuan. it was the first company in China to design and manufacture tools for testing communication and software for monitoring communications as well as a certified national high-tech software and enterprise. The products of Dadi are designed and developed by Dadi. We offer products that cover six key areas: test of the transmission network testing support networks, battery test for service networks, test communications reinforcement equipment, and test of IP networks with more than 20 types of products. They can “tailor” the needs of customers to design a range of products.

6. Duwei Instrument
Duwei Instrume was founded in Zhongguancun which is a National high-tech as well as Zhongguancun high-tech business, and its own brand name “Duwei Instruments” that is engaged in the development and research, manufacturing and selling of measurement and test for communication instruments. With continuous advancements in testing and measuring technology for communication we are committed to providing the most effective tests and measurement options for next-generation communications equipment and networks. The self-developed products cover cable/wireless/satellite TV network testing, broadcasting/radio monitoring, AM/FM/CDR/DTMB signal field strength coverage testing, RF recording/analysis, OTT streaming video service testing, DVB/IPTV/OTT video service monitoring, audio/video/TS code stream analysis, WiFi/Bluetooth integrated testing, transmission/ We also provide test system solution design, technical consulting and system integration services.

7. Baogong
Established in Taiwan in the year 1991, BaoGong Tools is a prominent manufacturer and supplier of electronic hardware tools as well as tests instruments for network peripherals. Through the 20 years of this market BaoGong stick to their tradition of the brand, baoGong “Pro’sKit” (electronic hardware tools category) and “Pro’sKit Lan “Pro’sKit” (network peripheral test instruments) have had numerous achievements in the marketplace and are highly regarded by consumers and customers.

8. Huashengchang
Shenzhen Huashengchang Machinery Industry Co., Ltd. It is an innovative high-tech company that specializes in the design, development and production of all types of measuring instruments. It has hundreds of national utility model patents as well as appearance patents. The company is the vice-president of the China Instrument Industry Association, Shenzhen instrumentation automation industry, the top company, with items for defense of the nation electrical power, HVACR the chemical industry, melting electronic manufacturing, research institutes and various other areas. They offer a variety of products, including non-contact infrared thermometers professional environmental tester volume meter/noisemeter, illuminance measurement temperature and humidity gauge carbon monoxide tester power base multimeter, digital and AC/DC clamp meter. anemometers, pressure meters, car tachometers, etc.

9.Naxuan
Naxuan was founded in July of 2011, and has since made a commitment to be a leading national company that is a leader in network testing equipment Its headquarters is situated within Shanghai Fudan University Venture Park. Due to the growing popularity of chat rooms and web-based conference as well as online shopping, Everythingover IP is becoming an actuality, and they create greater demands on the technology and equipment for networks. NAXAN is hoping to supply network equipment manufacturers and network service providers corporations and government agencies with industry’s most efficient and cost-effective tests of network performance that assist them in testing the capabilities and dependability of the most complex IP network devices, systems, and applications.

10. Yubeyu
Yubeyu is a reputable firm that manufactures and markets every kind of top construction and civil engineering tools. The company is a designer and development team for its products that are in this field and is committed to providing customers with affordable products, optimal design solutions, and an excellent after-sales support. This company is in a long-term collaboration with local universities and well-known research institutes and is based on their expertise in scientific research and is dedicated to the development of localization strategies for various modern instruments.

11.Jiahui
Shanghai Jiahui Optoelectronics Technology Co., Ltd founded in the year 1998 is a technological company that studies, develops and sells fiber optical engineering test equipment as well as portable fiber optic test equipment optical passive components fiber optic cable cleaning and construction tools, as well as fiber optic testing solutions in a variety of areas. Presently, the firm’s primary products are fiber optic engineering instrumentation desktop instruments such as the insertion and return loss tester, ASE light source, fiber optic passive components and cleaning fiber optic cables construction and repair tools products. We also offer fiber optic engineering tests, FTTx network testing and other fiber optic testing products and FTB splitter testing systems, PLC splitter production testing system Fiber optic connector testing as well as coupling monitoring, and other products for controlling production in industrial settings.

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Through the use of home network cable tester testing device to home tester for a large number of tests, found that this method is simple and easy to operate, the accuracy rate of up to 100%.

However, since there are many welding points in this testing device, frequent use of the device is likely to cause poor connection, so after a period of use, it is necessary to test the connectivity before and after the welding points to avoid testing errors caused by the welding problems of the testing device itself.