显示标签为“HDMI CABLE”的博文。显示所有博文
显示标签为“HDMI CABLE”的博文。显示所有博文

2015年1月8日星期四

12 patch panel mechanical properties

A pull-out force: The coaxial cable connector with anti-cable tensile strength greater than 50N; 212 port 12 port patch panel mechanical Durability: coaxial connector plug after 1000, shall comply with the provisions of the line marked 2.3.1.3,2.3.1.7,2.3.1.8,3.4.2,2.4.3 and 6.2, and the contact surface of the plating layer is still not expose the base material; 4 Digital Distribution All parts are made of materials should have anti-corrosion properties, such as corrosion resistance should be done without preservative treatment; their physical and chemical properties must be stable; must be 12 port patch panel compatible between the various materials; 5 12 port patch panel digital Distribution combustion performance of all non-metallic materials structures shall conform to GB/T5169.7-1985 A standard test requirements; 6 conductive elastic material should be used bronze, bronze; 7 conductor coaxial connector contacts inside and outside the region, should be plated an intermediate layer (buffer layer), then gold-cobalt alloy plating thickness.

2015年1月4日星期日

How to properly use the patch panel?

Living room with a patch panel Living room Electric Category: Electric is the main living room TV and peripheral equipment, audio and video enthusiasts will configure some special surround sound system. In addition, like the telephone, the communication device is a router which is the most common devices seating. voice patch panel living room electrical characteristics: Electric high-value, use a long time, the use of high frequency, high power supply quality requirements; phones, cats, routing and other equipment also requires a lightning protection function. Study with the cat6 patch panell study Electrical category: Electrical within general study are relatively simple, common computer, small size TV or desktop speaker system and so on. The study of electrical characteristics: frequency of use is not necessarily high, electric power is not great. Designed for computer application design: a separate host and three peripheral power jack socket; Alloy shell with environmentally friendly flame retardant engineering plastics, flame retardant, excellent impact resistance, moisture barrier, heat capacity; Built-in lightning protection circuit; Bedroom recommended patch panel Bedroom Electric Type: Common appliances in the bedroom with air conditioning, electric heating, TV. Bedroom electrical characteristics: Most appliances in the bedroom at night use, each use is not a short time. While at night the city power grid load is low, some cities there are nighttime preferential tariff halved, you can take advantage of. Child protection door, you can also prevent foreign matter into smaller wiring board;

2014年12月30日星期二

What is HDMI

Is a kind of full digital image and sound transmission of audio and video signalinterface, can send uncompressed. HDMI can be used for set top box, DVD player,personal computer, video game console, integrated amplifier, digital audio andtelevision equipment. HDMI can also send the audio and video signal, the audio and video signals using the same cable, which greatly simplifies the installation difficulty system line. HDMI was designed to replace the analog video transmission interfacesuch as SCART or RCA of the old terminal. It supports all kinds of TV and computerimage formats, including SDTV, HDTV video screen, plus multi-channel digital audio.In the transmission, various video data will be hdmi extension cable transceiver chip to "transmission minimized differential signal" (TMDS) technology is encoded into data packets. At the beginning of the formulation of specifications when the maximum pixel transmissionrate of 165Mpx/sec, enough to support the 1080p image quality of 60 frames per second picture, or the resolution of the UXGA (1600x1200); later in the HDMI 1.3 specification amplification for 340Mpx/ seconds, to meet the needs of the futurepossible. vga extension cable also supports non transmitting compressed digital audio (8 channelsampling rate of 192kHz, 24bits/sample data length), as well as any compressed audio stream such as Dolby Digital or DTS DSD signal, 1bit also support SACD by the use of 8 channel. In the HDMI 1.3 specification, adding ultra high data volume of non compressed audio stream such as Dolby TrueHD and DTS-HD support. Type Astandard HDMI connector 19 pin connector, Type B another support higher resolutionis defined, but there is still no manufacturers using the Type B connector. Type Bconnection has 29 pins, video channel to allow its transmission expansion to meet future high quality requirements, such as WQSXGA (3200x2048). Type A HDMI can be down compatible in the use of nowadays most display and graphics of Single-linkDVI-D or DVI-I interface (but does not support DVI-A), the said signal source using DVI-D interface can drive vga cable  screen by converting the line, but the conversionscheme does not support audio sending and remote control function. In addition, if there is no HDCP certification DVI screen will not be able to watch the video data withHDCP encryption to protect the output from the HDMI. (all HDMI screen all support HDCP, but most of the DVI interface display does not support HDCP.) Type B HDMI connector will also be downward compatible with Dual-link DVI interface.

2014年12月22日星期一

The application of HDMI

HDMI is the first in 2002, in order to obtain higher quality video and digital audiosystem, in order to meet the needs of users. Many different TV, computer and electronic products manufacturers have adopted the HDMI specification. These standards were introduced in the electronic manufacturing enterprises association,with the major music and film distribution firm cooperation. HDMI uses the EIA/CEA-861 standard definition video waveform and format, the auxiliary data, transport ofcompressed and uncompressed audio, audio and LPCM.
There are two different types of lead in the market, namely the class 1 and 2. These categories only applies to version 1.3 and higher, this is in 2008. Category 1 cableunder standard HDMI cable labels, and suitable for video and audio signal transmission 720p or 1080i. In the second types of information are also consideredspeed cues, and can make video and audio signal, 720p and 1080i and 1600P.Classification of two HDMI hdmi to dvi cable is guaranteed to work with more than 16 foot cable is the only type.
Because the signal attenuation, long lead should have certain limit. Cabletransmission of digital signal is too long is very weak, resulting in image flicker on the screen. The use of HDMI extender, equalizer or repeaters, can avoid the loss of signal problems. These devices can be used for cable connected to each other, thus extending the length of the hdmi to rca cable , and not lose the signal strength. The maximum length of the cable can be used to determined the category. In five, category six cablecan increase the total cable length of 164 feet. If the extended use is based on theoptical fiber, the total length of the cable is increased to 328 feet.

2014年4月14日星期一

Related presentation of its application vga extension cable

DVI digital video interface cable that is connected to the line. DVI is based on TMDS (Transition Minimized Differential Signaling), the smallest differential signal conversion) technology to transmit digital signals, TMDS encoding algorithm to use advanced 8bit data (R, G, B color signal for each of the roadbed) encoded by the minimum WISDOM 12 port patch panel  conversion 10bit data (including horizontal and vertical synchronization information, the clock information, data DE, error correction, etc.), after a DC balanced differential signal transmission data. DVI and LVDS, TTL better compared to electromagnetic compatibility, you can use a special cable to achieve long distance low cost, high-quality digital signal transmission. TMDS transmission structure connecting technology. Digital Visual Interface (DVI) is  cat6 patch panel an international standard open interfaces, vga extension cable on the PC, DVD, high-definition television (HDTV), high-definition projectors and other devices have a wide range of applications. High-density double-metal band braid shield, vga extension cable wire structure used in the 24th line, the line core using 19C +1, with good anti-jamming signal functions, to bring you comfortable and natural audio experience. Traditional products of audio and WISDOM micro usb connector  video signal transmission limitations independent, successful integration of audio and video synchronous transmission, low impedance, low loss, low distortion, superb conductivity and corrosion resistance, durable.

2014年3月30日星期日

Control VGA CABLE industry overall good technical quality

 At present, the higher the gold content of domestic cable companies have relatively few patents, utility model patents more; may often multinational patents are generally patents, we can see the gap between domestic companies and multinational corporations lies.
    Meanwhile, combine patented technology and production, improve the conversion rate of patent achievements, patented technology  terminal block ultimately translate into productivity, effectively enhance the competitiveness of enterprises. Combination of qualified personnel and enhance the development of wire and cable business, science and technology is to support, talent is the key to strengthen the innovation of personnel. Only science and technology as the core driving force and an important starting point in order to effectively change the mode of economic development, to win the future development of the initiative, if technological innovation is the development of life, then the talent is the driving force of technological innovation.
    Currently, VGA CABLE industry overall WISDOM sfp connector  good technical quality, integrated talent scarcity. The reason is that many companies have wanted to bring talent comes in handy, but rarely pay attention to the cultivation of talent, the brain drain has seriously affected the wire and cable industry into the international market pace. For who just graduated from college cable professional theoretical knowledge they learned really a lot more than the actual result of the contact, after entering the plant, when to deal with practical problems often seem confused, powerless, a lot of error analysis and judgment, perhaps to the company artificially caused some loss, this time to feel limited company this person is not strong level, no  hdmi switch longer give him room for improvement, no longer object to let go as a culture in important positions, and very conducive to the growth of talent, and some technical personnel the ability to get free play in the post, leading to interfere too much, technological innovation, enthusiasm and creativity significantly weakened, industry like many such cases.

2014年3月25日星期二

The key performance vga cable

Prefabricated branch cable and other cable products, is in the range of factory production equipment, which will be produced in assembly line of cable products. A good quality prefabricated branch cable, must WISDOM HDMI CABLE  be excellent performance of mining cables, because the performance of the cable is the basis of indicators of prefabricated branch cable products. For domestic product, its conductor, insulation performance, mechanical and physical properties of materials shall comply with the relevant national standards. Prefabricated branch cable quality measure factors including the main branch cable type, size, cross-section, length and branch locations and other WISDOM Displayport CABLE  indicators. Shanghai People's cable to bring you a detailed description of factors.
A branch connection body
   Critical to the performance of the branch connection body, which is the key performance prefabricated branch cable. Branch joins the main body of the cable and the branch cable conductor connected as a whole, and for insulation moisture treatment. Decided to branch connection body lies in material and workmanship, performance-critical branch joins the body, the majority of designers, the cable should be fully concerned with the quality of prefabricated WISDOM VGA CABLE  branch cable, choice of materials and production processes joints, tooling.
2, prefabricated branch cable resistance
  Contact resistance requirements and other branch cable length ratio of the reference resistor R1/R2 ≤ 1.2; when the main cable and the branch cable, respectively, by the rated current, heating for 5 hours, cooled 3 hours as one cycle, 25 cycles after the coupling the surface temperature does not exceed 75 ℃, after each cycle, the surface temperature of the joint surface temperature not higher than the first 25 cycles 8 ℃.