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Cable Certification Standards These standards define three types of performance requirements: components, cable and cabling. Component standards define the performance of the jacks/outlets and plugs (connectors) for each performance category. Today we have performance standards for category 3, 5e, 6, 6A, 7, 7A, 8.1 and 8.2. These standards are what the manufacturers of components use to design and test their products. When a person purchases a cat 6A outlet they assume the manufacturer guarantees that it provides the performance defined by ISO or TIA for cat 6A. Cable standards define the performance of the bare cable with no connectors attached. Just as with the component standard, we assume a box of cable marked cat 6A meets the performance requirements of the ISO and TIA standards for cat 6A. The component and cable standards are used by manufacturers of those components for design and testing. The third standard mentioned above, Cabling, is what field engineers use for testing installed cabling. The cabling standard defines the performance of the completed links and channels when connectors and cable are installed in the field. Field testing is critical because the link and channel performance is what determines whether the networking equipment will operate properly and provide the advertised bandwidth. Setting Up Cable Certifiers When setting up a certifier to test cabling, the desired performance standard is selected as well as the configuration of the cable being tested. The two options for certifying commercial cabling are channel and permanent link. Channel tests consist of the installed cabling plus the patch cords that connect the cabling to the networking equipment. In the diagram below, the installed cabling, called the permanent link (PL) is shown in green and the patch cords are shown in purple. The measurement begins about 2 cm from the channel adapter of the certifier and includes the cable of the patch cord and the connector that mates to the patch panel and work area outlet. The connection at the channel adapter is not included in the test. The black lines and Stop/Go symbols indicate the portions of the cabling being tested. When testing a permanent link (PL) only the installed cabling (green in the diagram) is tested using special PL adapters on the certifier. Here the test includes the connection at the patch panel and work area outlet, plus about 2 cm of the PL adapter cord. This is the most common test performed in the field because it is a test the components that the installer is responsible for and not patch cords which the end-user of the network can change and invalidate the certification test results.

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(1) the construction of electricity power distribution system should set the total distribution box, distribution box, switch box, and follow the "total - points - on" order for classification set, and the formation of "three distribution" mode. (2) the construction of each distribution box with a power distribution system, the installation position of the switch box to be reasonable. The total distribution box to try to close the transformer or external power source in order to introduce the power supply. Distribution box should be installed in electrical equipment or the load is relatively concentrated in the heart, to ensure that the three-phase load balance. Position switch box should be installed depending on site conditions and working conditions as close to the electrical equipment under their control. (3) ensure temporary power distribution system three-phase load balance, the construction site of the power of electricity and lighting electricity should form two electric circuits, power distribution box lighting distribution box should be set separately. (4) All electrical equipment construction site must have its own dedicated switch box. (5) inside the box and set the levels of distribution box must comply with safety regulations, electrical switches should be earmarked, cabinet should be uniform number. Stop using the power distribution box should be cut off, the door locked. Fixed distribution box should be set to the fence, and there are water-resistant anti-smashing action. (6) distribution box and distribution cabinet distinction. According to GB / T20641-2006 "General requirements for low-voltage switchgear and control equipment shell body" Note: the scene to see, not only the door has disappeared, and the switch is still in the "ON" state, a total of six cables exposed above not posted any warning. Since the power distribution box is located north of aerospace southbound bus stop about 50 meters of the location, but also in the southeast corner of the island, past people flocked to the large flow of people.

Network monitoring tool to calculate the bandwidth utilization, and scan through SNMP errors of flow. The tool also provides detailed information on assets, such as operating systems, software and hardware installation, and inform you about the overall availability and performance of network elements. Find it how easy it is to detect, diagnose and solve problems with Orion network performance monitor (NPM) network. Orion's palace is the most simple operation and maintenance of the same kind of products, this means that you will spend more time is actually the management network, does not support the Orion the Forbidden City. Another useful tool is 10 combat network monitor. It can help to monitor all hosts on the network and detection fault time.

NINGBO YULIANG TELECOM MUNICATIONS EQUIPMENT CO.,LTD. is one of the white hair telecom accessories manufacturers in China. Service products for: Connection module,hardware networking tools,network distribution box,wire splcie connector,network patch cord,network keystone jack,network cable management,network server cabinet,lan network cable,Gas discharge tube fiber optic accessires,fiber optic termination,optical fiber patch cord,fiber optic pigtail,fiber optic adapter,optical fiber cable. Fiberhome ,ftth network,ftth telecom,home fiber network,fiber to home technology,fiber optic to home installation,home fiber optic,telekom fiber to the home,Fiber Optic Terminal Distribution Box,Optical termination box,Fiber termination box wall mount,Outdoor fiber distribution box,Indoor optical terminal box,Ftth fiber optic termination box,Fiber connect socket,Fiber optic jumper fiber optic patch cord,Fiber optic assembly,Fiber fast connector,Fast connector fiber optic,LC fast connector,Fast connector LC,Ftth fast connector,Field installable fiber optic connector,Fast SC connector,Quick connector.

In the network hardware, there is a class can not be ignored is the network transmission medium, we often referred to the network cable. Currently more common Subdivisional twisted pair cable, fiber optic cable, coaxial cable and coaxial cable and other crude. 1. fiber optic cable: fiber optic cable is a new generation of transmission medium, the medium compared with copper, fiber, whether in security, reliability or network performance has greatly improved. In addition, the optical fiber transmission bandwidth well beyond copper cable, and maximum connection distance it supports up to two kilometers, is the formation of large-scale network of inevitable choice. Since the optical fiber cable has good resistance to electromagnetic interference, confidentiality, speed, large transmission capacity, etc., so its price is also more expensive, rarely used in household applications. Currently, there are two common types of optical fiber, which are single-mode fiber and multimode fiber (so-called "model" refers to a certain angle of the beam of light into the fiber). Multimode fiber is commonly used for network connections to the same building or a relatively close distance of the region. Single-mode fiber and a higher quality of data transmitted, the transmission distance is longer, is typically used to connect between the office network or wider geographically dispersed. If you use a fiber optic cable as the network transmission medium, the need to increase the light end of the transceiver and other equipment, so the cost of investment in larger applications in general less used. 2. Twisted Pair: Twisted Pair is a flexible communications cable contains a pair of insulated copper wire, which is characterized by cheap, they were widely used, such as our common telephone lines. Depending on the maximum transmission rate, twisted pair can be divided into three categories, Category 5 and 5e categories. Rate category 3 twisted pair is 10mb / s, 5 classes of up to 100mb / s, while the ultra-5 class and up to 155mb / s or more, and can be adapted to the needs of future multimedia data transmission, it is recommended to use Category 5 or Category 5 double stranding. Twisted pair shielded twisted-pair can be divided into (stp) and unshielded twisted pair (utp). Although the rate is low stp twisted pair (only 4mb / s), but strong anti-interference ratio utp twisted pair, so the price should be a lot more expensive, and now a few dollars cheaper UTP such a meter, expensive thing possible more than a dozen yuan to buy one meter. In contrast, utp twisted pair price is generally about one meter a dollar, relatively low. In addition, the commonly used 10m and 100m unshielded twisted pair is the popular name for 10base-t and 100base-t, we often see in the market. And supporting the use of twisted-pair also rj45 crystal head for the joint production of twisted pair LAN rj45 interfaces between its quality is directly related to the stability of the entire network can not be ignored. 3. Coax: Coaxial cable is more familiar to many of my friends for a class of transmission medium, which is composed of layers of insulated wire wrapped around the central copper conductor cable, its greatest feature is a good anti-jamming capability, the transmission data stable, and the price is cheap, so once widely used, such as cable TV lines. However, before the coaxial cable used more, mainly because of lower bus structure of the network coaxial cable costs, but damage to a single cable may cause paralysis of the entire network, it is difficult to maintain, which is its biggest drawbacks. Coaxial Ethernet applications are divided into thick coaxial cable (10base5) and thin coaxial cable (10base2) two kinds. Now a thick coaxial cable used much, and thin coaxial cable is also some markets. Thin coaxial cable is generally the market price of a few dollars one meter, not too expensive. In addition, the coaxial cable is used and connected to the bnc head, sold on the market are generally coaxial cable and bnc connector has been well finished, we can be directly used.

YLTelecom (Ningbo Yuliang Telecom Co.,Ltd)set up in 2011, is a leading professional manufacturer of Fiber Optics and Structured Cabling Products. With 10 years export experience, YLTelecom has grown up to be being perfected company with integrated line of R & D, production, sales and service. Our main products include Fiber Optic Patch Cords, Pigtail, Connector, Adapter, Attenuator, Patch Panel, Terminal Box, ODF, Splice Closure, Media Converter, as well as other FTTH Relative accessories. Besides that, we also have big advantages of Structured Cabling Products, such as Cat5e, Cat6 and Cat6a Lan Cable, Patch Cable, Patch Panel, Keystone Jack as well as Cable Management, Faceplate, Mounting Box, Inline Coupler, Telephone Accessories, Network Cabinet, etc. All of our products are designed and produced according to ISO9001:2008 and international standards, such as Telcordia-326-CORE, ANSI/TIA/EIA, ISO/IEC 11801 and IEEE, etc, we adhere to strict quality controls allowing our products to help you build long term stable business and get more returning customers. We believe that "A Happy Customer is a Regular Customer"!   Now we have over 300 workers in the factory, we believe there will be more with the development of company in the near future. Our regular training will keep our workers with experienced skills and keep pace with the industry trend. What's more, our technical staff and QC members also play a very important role during the production. Because of their consistent efforts, our products are always with high performance.   Our company has won widespread loyalty among our customers through her outstanding expertise Research and Development staff, excellent sales marketing, high quality production, prompt delivery, sincere and quick after-sales services. And all the products have found extensive applications with all kinds of famous brand carriers, and we have exported products to many international markets includingUSA, European Countries,Southeast Asia,AustraliaandMiddle East. We not only provide superior products, but also prompt and professional after-sales service to our customers. Meanwhile, OEM Service is well provided to many clients from us.   We are not just selling products, but we are providing reliable service to help our customers build their business. So our happiness relies on our clients` happiness and we are struggling to improve ourselves and do better in the future. Our whole team is confident to set up pleasant cooperation and get win-win result with your side. If you have any requirement, please don't hesitate to contact us. Trust us and give us an opportunity, we will...!