Cable use scope

Power system
Wire and hdmi cable products used in the power system mainly has the overhead bare wire, bus (bus), the power cables (plastic cable, oil paper power cable (basically replace the plastic power cables), rubber set of cable, aerial insulated cables), branch cable (instead of part of the bus), electric magnetic line with electrical equipment and power equipment wire and cable etc..
Information transmission system
For information transmission system wire and cable are mainly telephone cable, TV cable, electronic cable, radio frequency cable, fiber optic micro hdmi cable , data cable, electromagnetic wire, electric power communication or other composite cable.
Mechanical instrumentation system in addition to this part of the overhead bare wires outside almost all other products are applied, but the main power cable, electromagnetic wire, data cable, instrumentation cables

Optional elements of cable

Wire and plug in terminal block as the main carrier of power transmission, are widely used in electrical equipment, lighting, household appliances and other lines, its quality directly affects the quality of the project and the life and property safety of consumers. There are a lot of wire varieties on the market, want to use the appropriate wire according to the power load your.
On the market sell wire some cheap and some more expensive, some people often but to relatively cheap, cheap, wires, often have many did not reach the performance that he shows, there may bring many security hidden trouble to yourself. Production technology content of wire is not too high, the raw material is not much difference, if cheap too much, or cut corners, or the number of not giving enough. How to identify it. I give you several methods for easier identification:
1, to look at the packaging, GB wires tend to do relatively well, neat, hand up have a sense of quality.
2, to open the package to see the inside of the wire, the wire GB 1.5 - -6 square wire requirement is thick skinned (insulation thickness) is 0.7mm, too thick is non-standard, corresponding to his inner core is sure enough, line skin you can force pull, not easy to tear is general is the national standard of
3, with the fire, extinguished within 5S after leaving, have certain flame retardant function for GB line.
4, look at the inner core, the inner core material (copper) brightness higher copper is better, and photometric mini hdmi cable uniform, shiny, no sense of hierarchy. The national standard requirements within the core must use oxygen free copper. Non standard such as black rod copper, there may be hidden dangers of accidents.
5, the thickness of inner core countries have certain requirements, but not very strict. But not a lot of mistakes, only a very small a little bit error generally with the eyes of the.
6, length, no compulsory must play meters, but there are many manufacturers also played meters, not necessarily GB dozen meters, but the General GB generally not dozen meters. Non standard dozen meters that is only a kind of means.
7, the provisions of the state on the wires must play a certain identity, the maximum not more than 500mm have identified the same next play out, above the general product trademark, factory name, the implementation of standards

Name of product structure and material of cable

(1) the wire: the most basic essential main component products are current or electromagnetic wave information transmission function.
Main material: the wires are electrically conductive wire core referred to, made by conductive properties of copper, aluminum, copper clad steel, copper clad aluminum and other non-ferrous metal with excellent, optical fiber as the wire.
A bare copper wire, tinned wire; single branch, strand; twisted tinning line.
(2) the insulating layer is coated components: plays a role in wire electrical insulation periphery. That can ensure the transmission of current or electromagnetic waves, light waves travel along the wires and not only flow to the outside, the conductor has the potential (i.e. potential on the formation of the surrounding objects, namely the difference voltage) can be isolated, i.e., both to ensure the normal transmission function of the wire, but also to ensure that the external object and personal safety. Conductor and the insulating layer is composed of terminal block products (except the bare wire) two basic components must have. Main material: PVC, PE, XLPE, PP, F, polypropylene fluorine plastics, rubber, paper, mica tape
(3) filling structure: a lot of wire and cable products are the multi core, these insulating wire core or lines on the cable (or packet multiple cable), a shape is not round, two is an insulating cable core has the very big space, and must join the filling structure in the cable, filling knot the structure is to make the cable outer diameter relative round in favor of bag, extrusion sheath. Main material: PP rope
(4): is a kind of shielding barrier terminal block products in the field and outside electromagnetic isolation components; cable products from different lines in its internal (or group) to also need mutual isolation between. The shielding layer can be said to be an "electromagnetic screen". The conductor shielding of high voltage cables and insulation shielding to electric field distribution homogenization. Main material: bare copper wire, copper clad steel wire, tinned copper wire
(5) layer of protection: when the electric wire and cable products running in different environments, must have on the overall product, especially for the insulating layer protective component, which is the protective layer.
Because the requirements of insulating material has excellent variety of electrical insulation properties, must demand extremely high purity and impurity content of materials; often fail to take into account their on the outside of the protection ability, so for the outside world (i.e., installation, application occasions and in various mechanical force) bearing or resistance, resistance to atmospheric environment, chemical resistance or oil, to prevent biological invasion, and reduce the fire hazards must be composed of various protective layer structure to bear. Main materials: PVC, PE, rubber, aluminum, steel strip
(6) the tensile element: the typical structure is a steel core aluminum stranded wire, fiber optic cable and cable etc.. In a word, the development of special fine, soft, also requires repeated bending, distorting the use of products, the tensile element plays a major role in.

Wall type terminal block

With screw connection cable technology, insulating materials for PA66 (flammability rating: UL94, V-0), using high-quality connectors highly conductive metallic material. H-type wall-type terminals can be mounted side by side on the thickness of 1mm to 10mm and other Barrier terminal block panels, panel thickness adjustment distance can automatically compensate any terminal block consisting of poles, and can be used to increase the air gap separating plate and creepage distance. No tools can be wall-type terminals securely mounted in a rectangular hole on the panel aside, the installation is extremely convenient. H-type terminal block wall is widely used in some of the solutions that need to pass through the wall of the occasion: Power, filters, electrical control cabinets and other electronic devices. Good plug in terminal block insulation properties, high degree of protection, users only need to work directly in the external wiring, eliminating a lot of unnecessary wiring steps. Insulation material WUK series terminal with modified nylon (PA66), which can be accessed 4mm2 wire voltage of 800V electrical current is 41A connectivity products

Terminals requirements

Mechanical structural safety requirements terminals in terms of chemistry and structural materials and moving parts to ensure the safety of live, such as shell edges, hardware aspects of glitches, and various parts of the connection strength, even stable under electrical terminal block exercise conditions sex, above all in the mechanical structure of the power industry requirements for terminals.
2, enclosure protection requirements mainly JB / T 9568-2000 provides for protection class, it is mainly divided into two types, one is solid foreign protection level, one is water damage caused to equipment and products.
3, insulation coordination requirements are mainly based on the materials used, the working voltage and environmental pollution levels, come together to select clearances and creepage distances, thereby protecting the safety of staff and products work, but also make the product does not occur in the over-voltage insulation damage .
4, the tracking index requirement for the product in the course of the surface of the solid insulating materials in the electric field and an electrolyte to form a conductive path, so that the insulating properties of the insulating material housing decline, affecting the safety of the product. If insulation voltage level at the same conditions, tracking index is high, the product creepage distance can be reduced, if the product enters power sector development in this regard, please pay full attention.
5, the thermoplastic material in the work requirements of the deformation, which is mainly of the temperature and the contact resistance of the terminals in the work, the high temperature which causes the deformation of the housing becomes soft, so that the electrical short-circuit, resulting in a serious accident, so the carrier terminals Select the material flow components was very important.
6, electric shock requirements, the structural aspects of the operating element should not be charged, terminal and internal PCB Spring Terminal Block connections should be accessible to this area mainly for screw torque and reliability requirements, should prevent the screw terminals can be touched, Loose wires accidentally shorted. Such as the ground terminal requirements: ground resistance class security products should not exceed 0.5Ω.

Terminal blocks labeling method

 Same element group, before the number preceded by the letter, if not necessary to distinguish phase, available digital-5N, -2.5, -16 mark.
 Same set of components. With a specific electrical wire terminals connected to a sign. The pressing means is the terminal blocks between the conductor and the conductive body of the pressure generated only generate sufficient pressure to ensure a low contact resistance, a good connection is formed, the reliability of the pressing machine is connected directly to the wire impact good or bad. Speaking of screw-type plug in terminal block screws, studs and are important components platen clamping mechanism; screwless terminals for speaking, spring or spring card is an integral part of the compactor. No screw-type spring terminal block ,clamping mechanism is mainly spring, so crucial to the selection of the spring, it is necessary to ensure that there is sufficient contact pressure to ensure that not too much damage to the wire,PCB Spring Terminal Block is more reliable screwless terminals. When the line, you can block or suppress the spring by pushing a screwdriver, into the line, release the spring, the spring tension back pressed firmly to the wire, resulting in sufficient contact pressure, and then strangled with a spring wire cutting edge, so it does not pull out loose or man-made.
 Each terminal in the middle of said single element in a natural number incremented sequence number.

Hdmi extension cable features an infrared receiver

hdmi extension cable infrared receiver features: 

1 External colloids using electrical terminal block, and add coloring, play better shielding effect. 

2 senior internal IC chip imported from Germany and PD, achieve longer distances and more sensitive receiver acceptance angle, to ensure the 21 pin flat scart cable and consistency of performance. 

3 fixation using high-temperature aging process, to ensure infrared receiver bracket rust during storage.

The introduction of fixed head

Cable sealing sleeve is a suitable connection cable power supply, also can protect the cable, so it won't escape. Cable sealing device is placed in different categories,depending on whether the glands for general processing industry or in need of protection, prevent the risk is too high or the explosion temperature. Into the armored cable glands or no armoring layer and a different type of gland will be required for each variety. The gland itself, can be made of metal, such as copper or aluminum, or plastic, the material is useful in different environments.

When the electrical work is completed, it may be no cable sealing, to ensure theelectrical equipment wire, but there are several reasons, this is a bad idea. Glandsprovide sealing power, so as to ensure that the RCA audio cable will not slip during operation.Security is also provided, because the cable gland to ensure that electricity can not attached to anyone nearby, causing bodily harm. Glands usually provide other safety features, such as the earth wire or insulated cable.

To have two categories: Industrial and hazardous for RCA video cable sealing. Industrial cablesealing joint is a general use of the gland, in order to meet the requirements ofgeneral risk, so it is useful or dangerous explosion in high-temperature environments.If the environment is harmful substances, the use of dangerous gland, because these glands to meet additional requirements necessary. They are fortified with extra, so that they can resist common glands cannot withstand the temperature and external forces.

Two types of cables can be sealed sleeve is classified as armored or unarmoredcable into, which will play glands work will rebound. Armored cat6 ethernet cable will need a gland,can clip into the wire, and the ability to terminate the energy from the armor part. Nonarmoured line does not require termination, but the glands need highly protected andpreserved, in order to maintain the safety of wire.

Most cable gland cell is made from brass, which is considered, as a general materialis resistant to corrosion and electrical conductivity. In the aluminum and the presence of moisture at the same time, the corrosion of brass can start. Brass is often associated with other metal plating, to make the gland is stronger, better corrosion.Plastic is often used as an alternative to metal glands.

Cable industry prospects

With the wire and cable industry competition intensified, large wire and cableenterprises merging and capital operation is becoming more frequent, the domestic wire and cable production enterprises outstanding more and more research and attention to the industry market, especially the thorough research to the enterprise development environment and customer demand trend change. Because of this, a large number of outstanding domestic wire and cable brand rapidly, graduallybecome a leader in the wire and cable industry!

Wire and cable industry report mainly analyzes the operation situation and Prospect Forecast of electric wire and cable industry; power cable products market demand forecasting and purchasing; communication cable products market demand forecasting and purchasing; electrical equipment market condition of the cable; bare wires and wire winding market; competition pattern and competitor wire cableenterprises; development status and the planning of industrial base of wire and cable;construction trend of wire and cable industry base project; the wire and cable industryanalysis and solve problems existing measures and suggestions. At the same time,accompanied by the whole industry for nearly 5 years the comprehensive detailedhand continuous market data, market trends and the development trend of lets you fully, accurately grasp the wire and cable industry. Although the Chinese wire and cable industry has experienced more than 20 years, has made considerable development, but still not out of the big and not strong cycle, are still a big gap compared with world class companies. The existence of industry concentration is low,a large number of enterprises and small scale, the scale economy is far from enough,lack of the capability of independent innovation and product structural contradictionand so on many questions. Despite these problems, but the Chinese wire and cableindustry is facing new opportunities that the rapid take-off, enhance their corecompetitiveness opportunities in development. With the changing of world economic pattern, Chinese mini DVI cable industry is also bound to face restructuring and reshuffle.Especially in Chinese economic development in recent years is facing the problem ofbottleneck of energy, electric power shortage, the state has continued to increasepower investment, the industry entered a period of leap forward development. Toimplement the central decision-making deployment of the construction of infrastructure, stimulating domestic demand, the China State Grid Corp plans to increase investment, accelerate the pace of construction of power grids, it is expected that in the next 2 to 3 years the scale of investment will exceed 1 yuan, of which rural city and the main power grid construction and transformation of investment 790000000000 yuan. The construction scale of 110 (66) kV and above transmissionline 260000 km, 13.5 million KVA substation capacity.

Industry equipment belongs to a power cate5e network cable manufacturing industry for power transmission, the relatively low technological content, low barriers to entry, the user is mainly the China State Grid Corp, this market lead to the loss of pricing power for many equipment suppliers, the entire industry after the rapid expansion and raw materials prices after the facing problems, the industry increasingly fierce competition, profits are a declining trend; the two power transmission equipment industry is a cyclical fluctuations relatively small industry, it relates to the high-tech field, technical barriers to high, by a few large companies monopoly. In view of the development prospects of China's power industry, as its sub industries in the promotion of the environment is still expanding space better wire and cable manufacturing industry.

Cable use scope

Power system

Wire and cable products used in the power system mainly has the overhead bare wire,bus (bus), the power cables (plastic cable, oil paper power cable (basically replace the plastic power cables), rubber set of cable, aerial insulated cables), branch cable(instead of part of the bus), electric magnetic line with electrical equipment and power equipment wire and cable etc..

Information transmission system

For information transmission system wire and cable are mainly telephone cable, TV cable, electronic fiber optics cables , radio frequency cable, fiber optic cable, data cable,electromagnetic wire, electric power communication or other composite cable.

Mechanical instrumentation system in addition to this part of the overhead bare wiresoutside almost all other products are applied, but the main power optical fiber cable ,electromagnetic wire, data cable, instrumentation cables

Optional elements of cable

Wire and cable as the main carrier of power transmission, are widely used inelectrical equipment, lighting, household appliances and other lines, its quality directlyaffects the quality of the project and the life and property safety of consumers. There are a lot of wire varieties on the market, want to use the appropriate wire according to the power load your.

On the market sell wire some cheap and some more expensive, some people oftenbut to relatively cheap, cheap, wires, often have many did not reach the performancethat he shows, there may bring many security hidden trouble to yourself. Productiontechnology content of wire is not too high, the raw material is not much difference, if cheap too much, or cut corners, or the number of not giving enough. How to identify it. I give you several micro usb cable for easier identification:

1, to look at the packaging, GB wires tend to do relatively well, neat, hand up have asense of quality.

2, to open the package to see the inside of the wire, the wire GB 1.5 - -6 square wirerequirement is thick skinned (insulation thickness) is 0.7mm, too thick is non-standard, corresponding to his inner core is sure enough, line skin you can force pull,not easy to tear is general is the national standard of

3, with the fire, extinguished within 5S after leaving, have certain flame retardant function for GB line.

4, look at the inner core, the inner core material (copper) brightness higher copper is better, and photometric uniform, shiny, no sense of hierarchy. The national standard requirements within the core must use oxygen free copper. Non standard such asblack rod copper, there may be hidden dangers of accidents.

5, the thickness of inner core countries have certain requirements, but not very strict.But not a lot of mistakes, only a very small a little bit error generally with the eyes of the.

6, length, no compulsory must play fiber optic cable , but there are many manufacturers alsoplayed meters, not necessarily GB dozen meters, but the General GB generally notdozen meters. Non standard dozen meters that is only a kind of means.

7, the provisions of the state on the wires must play a certain identity, the maximumnot more than 500mm have identified the same next play out, above the generalproduct trademark, factory name, the implementation of standards

DVI functionality

DVI (Digital Visual Interface), namely digital video interface. In Silicon Image's PanalLink interface technology, based on TMDS (Transition Minimized Differential Signaling, Minimized Differential Signaling) as basic electrical electronic protocol cat6 ethernet cable connection. TMDS signal is a differential mechanism, the pixel data can be encoded and transmitted via a serial connection. The digital signal generated by the transmitter card in accordance with the transmission through the TMDS channel TMDS encoding protocol to the receiver, after decoding to give a digital display device. A DVI display system includes a transmitter and a receiver. Transmitter is the source of the signal, can be built-in graphics chip, the chip Plug-In Terminal Block can also be in the form of additional graphics appear on the PCB; while the receiver is a circuit monitor, which can accept digital signals, decode and pass to the digital display circuit through which both the signal from a graphics image on the display.

HDMI component

Generally, HDMI connected by a signal source and receiver components, and sometimes in a system may also comprise a plurality of HDMI input or output device. Each HDMI signal input interface can receive information in accordance with standard connectors, the same usb 3.0 extension cable signal output interface will carry all of the signal information. HDMI cable and the receiver comprises three different TMDS data channels and one clock channel, these channels to support video, audio data and additional information, video, audio data and additional information transmitted by the three channels to the receiver, and the video after the pixel clock is transmitted through the TMDS clock channel, the receiver accepts the frequency parameters, and then restore the other three data channels to pass over the information. Source code format video and audio signal transmission HDMI inputs include video pixel data, control data and packet. Wherein Mini HDMI cable the data packet contains the information of audio data and auxiliary data, in order to obtain a high reliability, while HDMI audio data and control data, the data packet further includes a BCH error correction code. HDMI processed data information can have a variety of different ways, but ultimately contain two control data in each of the TMDS channel, 8 and 4 video data packets.

hdmi cable wire is used to transmit high-definition multimedia video signal.

hdmi cable can be high-quality transmission of uncompressed HD video and multi-channel audio data, the maximum data transfer speed of 5Gbps. At the same time without the signal before transmission / A or A / D conversion, can guarantee the highest quality audio and video signal transmission. Transmission principle HDMI cable 2HDMI data plug in terminal block cable data lines 1HDMI hdmi cable line has a "plug and play" feature, automatically, "negotiation", automatically selects the most appropriate video / audio formats between the signal source and the display device. Volume DVI HDMI interface, compared with the smaller, and can simultaneously transmit audio and video signals. DVI cable length can not be more than eight meters, otherwise it will Dvi to hdmi adapter affect the picture quality, but HDMI can transmit as far as 15 meters. As long as an HDMI cable, you can replace up to 13 analog transmission line, a home entertainment system can effectively solve the tangled mess behind the wiring problem.

Advantage of the wisdom of the mini-HDMI cable

HDMI cable is used to transmit high-definition multimedia wire video signal. HDMI cable can transmit high-quality HD video and uncompressed multi-channel audio data, the maximum data transfer speed of 5Gbps. At the same time without the signal before electrical terminal block transmission / A or A / D conversion, can guarantee the highest quality audio and video signal transmission. Transfer directory 1HDMI data lines 2HDMI data line principle a mini HDMI cable data cable HDMI cable with a "plug and play" feature, automatically, "negotiation", automatically selects the most appropriate video / audio formats between the signal source and the display device. Volume compared with the wisdom of the mini-DVI mini usb cable is smaller, and can simultaneously transmit audio and video signals. DVI cable length can not be more than eight meters, otherwise it will affect the picture quality, but HDMI can transmit as far as 15 meters. As long as an micro HDMI cable, you can replace up to 13 analog transmission line, a home entertainment Vga extension cable system can effectively solve the tangled mess behind the wiring problem. Advantages: HDMI interface specifications in digital form can transmit uncompressed high-definition video and multi-channel audio data while maintaining the high quality of the case. Its superior performance beyond all previous products. HDMI specification connectors use a single connection, replacing the complex cable behind the product. Interface cable using the HDMI specification does not limit the length. For example: DVI cable length can not be more than eight meters, otherwise it will affect the picture quality, and meet the HDMI specifications do not have this problem. HDMI specification can be used with broadband digital content protection (HDCP), in order to prevent copyrighted audio and video content from unauthorized copying.

hdmi cable uses

hdmi cable wire is used to transmit high-definition multimedia video signal. hdmi cable can be high-quality PCB spring terminal block transmission of uncompressed HD video and multi-channel audio data, the maximum data transfer speed of 5Gbps. At the same time without the signal before transmission / A or A / D conversion, can guarantee the highest quality audio and video signal transmission. Transmission principle HDMI cable 2HDMI data cable data lines 1HDMI hdmi cable line has a "plug and play" feature, automatically, "negotiation", automatically selects the most appropriate video / audio formats between the signal source and the display device. Volume DVI HDMI interface, compared with the smaller, and can simultaneously transmit audio and video signals. DVI cable length can not be more than eight meters, otherwise it will cat5e network cable affect the picture quality, but HDMI can transmit as far as 15 meters. As long as an HDMI cable, you can replace up to 13 analog transmission line , a home entertainment system can effectively solve the tangled mess behind the wiring problem.

Twisted pair cable twisted around should meet the requirements

To reduce interference signals, twisted pair cable each wire pair is composed of two insulated copper wires twisted around each other together, and the same cable on different lines with different degrees of twist around (that is twisted coil how many there). Meanwhile, the standard vga to hdmi cable twisted pair cable wire pair is twisted counterclockwise conducted. However, some non-formal cable manufacturers, but there are many problems: ① In order to simplify the manufacturing process, the cable twisted around all pairs of the same density; ② line on the two insulated wires twisted around the density does not meet the technical requirements; ③ wire pair twisting direction does not meet the requirements. If there are more problems will cause near-end crosstalk twisted pair (UTP refers to the degree of signal interference between the two lines on), so that the transmission distance below standard. Twisted-pair twisted around degree in production has a more stringent standard, the actual purchase, in the case of a conditional number of professional mini displayport cable equipment available to measure, but the average user can only be observed with the naked eye. It should be noted that five UTP twisted around on the degree of midline than three dense, UTP than five secret. In addition to the two insulated copper wires twisted wire pairs according to requirements of the composition were twisted around the outside, between the standard UTP cable pairs must be twisted counterclockwise. Otherwise it will cause the cable resistance does not match, limiting the transmission distance. This is the average user rarely noticed. About the five twisted pair cables twisted degree and other relevant parameters, the interested reader may consult TIA / EIA568A (TIA / EIA 568 cabling standard is ANSI enacted in 1996, provides information on the basis of the standard network cabling Content facilities, including cables, connectors and other equipment. letter "A" is represented as IBM cabling standards, and AT & T said the letter "B".) specified in.

dvi use

DVI interface has + 5V voltage, hot plug detect (HPD) voltage requirements from this voltage acquisition, HPD active level should be greater than 2.4V, so the receiving device HPD series resistance should generally be less than 10kΩ. Applications receiving device can also use this voltage power supply for the system, but should not be greater than the load current 50mA, preferably less than 10mA, the level micro hdmi cable needed to ensure the HPD. To ensure the normal startup interface, EDID memory power at best + 5V generated by the sender. In order to ensure a viable hardware circuit design, software must also have support. Optimized software process is the key to ensure the normal operation of the DVI interface system. DVI interface voice patch panel for applied research on digital television, flat panel TV's, even more critical is the EDID (Extended Display Identification DATA, namely Extended Display Identification Data) programming, HDCP (High-bandwidth Digital Content Protection) function implementation. Those who are new to digital television applications, only after EDID and HDCP implemented on digital TV, DVI interface is the real digital TV interface. No broadcast there, how to use the correct method to output DVI video signal interfaces are accurate indicators of broadcast test, there is no one perfect way.

Advantages of micro hdmi cable

micro hdmi cable 1.3 version: 1, adds support for new lossless compressed digital audio formats Dolby TrueHD and DTS-HD Master Audio?'s. 2, the higher the refresh rate: 1920x1080 resolution in the same pattern, micro hdmi cable 1.3 offers 165Hz refresh rate than the dual channel DVI interface 120Hz refresh rate higher. micro hdmi cable 1.4 version: 1, Ethernet Channel: HDMI Specification 1.4 adds data path in the cable, and to achieve vga to hdmi cable two-way high-speed transmission. This function in the coupling device, the Ethernet cable can be used to speed 100Mb / s transmission and reception of data, and the equipment immediately becoming IP-based devices. HDMI Ethernet Channel will allow an integrated Internet-enabled HDMI devices without the use of additional Ethernet cable, you can share mini HDMI cable its Internet connection with other HDMI devices. This new feature also provides HDMI devices to share content between required interconnection architecture. 2, higher resolution: support 3840 × 2160 24Hz / 25Hz / 30Hz; 4096 × 2160 24Hz resolution. The new specification supports 4096 × 2160 resolution, making the HDMI interface to transmit content at the same resolution as many digital theaters used. The dual-channel DVI interface can support up to 2560x1600 resolution.

hdmi cable uses

hdmi cable wire is used to transmit high-definition multimedia video signal. hdmi cable can be high-quality transmission of uncompressed HD video and multi-channel audio data, the maximum data transfer speed of 5Gbps. At the same time without the signal before transmission / A or A / D conversion, can guarantee the highest quality audio and video signal transmission. Transmission principle HDMI cable 2HDMI data cable data lines Mini hdmi cable line has a "plug and play" feature, automatically, "negotiation", automatically selects the most appropriate video / audio formats between the signal hdmi cable for ps3 source and the display device. Volume DVI HDMI interface, compared with the smaller, and can simultaneously transmit audio and video signals. DVI cable length can not be more than eight meters, otherwise it will affect the picture quality, but HDMI can transmit as far as 15 meters. As long as an HDMI cable, you can replace up to 13 analog transmission line, a home entertainment system can effectively solve the tangled mess behind the wiring problem.