The difference between the cable and the optical cable

Cable: when the unit will sound signal into electrical signal through the line after the transfer to the switch, and then by the switch by lines will signal directly to the other telephone answering a call, the process of transmission lines is cable. The inside of the cable is mainly copper core wire. The diameter of the core wire with 0.32mm, 0.4mm and 0.5mm points, the greater the diameter of communication ability is stronger; and according to the core line number, are: 5, 10, 20 of of of, 50, 100, 200 of of of and so on, here refers to the maximum number of users log cable hold and press; packing, this I do not know. Cable: the volume, weight, communication ability, can only be used for short distance communication. Cable: when the unit will sound signal into electrical signal through the line after the transfer to the switch, and then by the switch will this electrical signal is transmitted to the photoelectric conversion device (converts electrical signals into light signals) to another photoelectric conversion device by lines (convert optical signals into electrical signals), then to switching equipment, to the other telephone answering. In between the two photoelectric conversion device is the optical cable line. With that number it only core line of the points, the core line number: 4, 6, 8, 12 and so on. Cable: its volume, small weight, low cost, large communication capacity, the advantages of good communication. Because of many factors, it is only used for long distance and from point to point (i.e. two switching) communication between. The difference between them is: inside the voice patch panel copper core wires; cables inside the glass fiber. Optical fiber communication cable is a certain amount in a certain way to form the cable core, a sheath of outsourcing, and some also covered the outer protective layer, with a line of communication to achieve the optical signal transmission. Once successively in Shanghai, Beijing, Wuhan and other places to carry out field test. Soon after in the local telephone network as interoffice trunk trial, after 1984, gradually for the long-distance lines, and start using single-mode fiber. Communication cables with a transmission capacity greater than copper wire cable, relay section of long distance, small volume, light weight, no electromagnetic interference, since the cable transmission line shaft after 1976 has developed into the trunk, intracity relay, offshore and transoceanic submarine communication and local area network, private network and so on, and began to develop the city user loop distribution network field, provide transmission lines for fiber to the home, width generation integrated service digital network. 12 port patch panel are usually similar to the rope cable by a few or several sets of wires [Each] and twisted by at least two mutually insulated wire, between each group, and often revolve around a central twisted, the entire outer covering layer of bread with highly insulated submarine cable; specified first: distinguish the material. Cable with metal material (mostly copper, aluminum) for conductors; cable with glass fiber as the conductor. Second: is there a difference transmission signal. Cable transmission is a signal. Optical fiber transmission is optical signal. Third: there is a difference between the scope of application. The cables are used for energy transmission and low data transmission of information (such as telephone). Cable used for data transmission.

How do cat6 patch panel Piggyback works ?

One commonly used solution to cable-length limitations is something called HDMI over Cat 6. ­Steven D’Addone, co-owner of Intra Home Systems in New Jersey, an installer of high-end audiovisual 4 port HDMI switch systems, swears by the technology. “We only run cat6 patch panel,” he says. Here’s how it works: A video source, such as an HD cable box, is connected to a small device­­—a “balun,” in the parlance of the trade—with a short HDMI cable. The balun usually takes the form of a small, router-like box or a wall plate. Its job is to pass the HDMI signal along to one or more cat5e cable or Cat 6 cables. (These are the same cables used to wire Ethernet networks—Cat 5e is a more common cable, but the ­newer Cat 6 standard is preferred by AV installers for its higher bandwidth.) At the receiving end, a similar box passes the signal back onto an hdmi wall plate, which then connects to your display. Now, all HDMI over cat6 patch panel baluns are not created equal. Some crudely bridge the HDMI and cat6 patch cables by relying on the signal power of the Barrier Terminal Block original video source—this limits the range considerably. Others compress and then decompress the HDMI signal, but this can cause hardware compatibility problems. D’Addone recommends a third type of system. “What seems to be the most reliable are cat5e network cable products that are high-­bandwidth and powered on both sides,” he says. These boxes, which can be found for about $100 each, create a direct bridge between HDMI and a pair of Cat 6 cables, but provide extra power to ensure the signal can travel distances up to 150 feet. Best of all, powered HDMI over Cat 6 preserves the quality of video and audio ­signals. And given the low cable price—about a dollar per 10 feet online—HDMI over Cat 6 makes the most economic sense for longer throws.

The advantages of HDMI

HDMI advantages comparing with the analog video interface existing such ascomposite, S-Video and video component:

1, quality:HDMI  is a digital interface, since all of the simulated connection (such ascomponent video or S-video) requirements in the converted from analog to digitalwithout loss, so it can provide the best video quality. This difference in the higherresolution, such as 1080p is particularly evident. Digital video than component video is more clear, eliminate the discovery component video in softness and tailing phenomenon. Such as text of this kind of small, high contrast detail the difference will be developed to the extreme.

2, ease of use: HDMI in the single cable integrated video and multi-channel audio,eliminating the use of the A/V system in the multi cable cost, complexity and chaos.This is particularly useful in upgrading or add equipment.

3, Gao Zhineng:HDMI supports video source (such as a DVD player) and bidirectional communication between DTV, the realization of new functions, such as automatic configuration and a key player. By using HDMI, equipment for the connection of the automatic transmission display the most efficient format (such as 480p vs 720p, 16:9 vs 4:3)? From the consumer need to scroll all the formatting options, to guess the best viewing format trouble.

4, high definition content ready: support for HDCP HDMI devices to access highdefinition content high, we bring some comfort to me. HD-DVD and Blu-ray have for today's high definition movie delayed starting image resisting marking (also calledcontent protection mark), to help minimize the potential problems caused by the conversion, but is expected to start this tag within a few years, means that the futureof high definition movie will not pass not protected interface (such as analog element)broadcast in high definition.

Process characteristics vga cable wire product manufacturing

Wire and cable manufacturing process characteristics: the great length of the combination of continuous production mode superposition large continuous length overlay combination mode of production, the impact on the global wire and cable production and controllability, which involves and affects:
A production process and equipment layout workshop equipment required by the various product requirements and reasonable process emissions, so that the various stages of semi-finished products, sequential flow. Device configurations to consider and balance the different WISDOM micro usb connector  productive capacity, and some equipment It may be necessary to configure two or more units, abilities production capacity of the production line can be balanced. vga cable so reasonable matching combinations and arrangements equipment production facilities, according to the product and production capacity necessary to balance considered.
2 production organization and management of production organization and management must be scientific and reasonable, accurate and careful, meticulous, the operator must be meticulously executed according to process requirements, vga cable any link problems will affect the process of smooth, affect product quality and delivery. especially multi-core cable, one  WISDOM rca video cable pair or the basic unit length is short, or quality problems, the entire length of cable will be enough to cause scrapped. Conversely, if a cell is too long, it must be sawn wasteful .
3 large length of continuous quality management overlay portfolio vga cable production, so that any one part of the production process, instantaneous little problem, it will affect the whole cable quality. More quality defects occur in the inner, and did not discover the termination of production , then the greater the losses caused due to the production of wire and cable products unlike assembled, you can open other pieces of heavy equipment and replacement;. either a part or the wire and cable process quality WISDOM dvi to hdmi adapter  problems, these cables is almost irreversible and irreparable. afterwards disposal are very negative, not sawn disposal is downgraded, or scrap the entire cable. unable to open the heavy equipment. quality wire and cable management, it is necessary throughout the entire production process. quality management and inspection department To tour the entire production process inspection, the operator self-inspection, mutual inspection process from top to bottom, this is to ensure product quality, and means an important guarantee for improving economic efficiency of enterprises.

hdmi extension cable and introduced a major role

HDMI's English name is "High Definition Multimedia", in Chinese means High Definition Multimedia Interface. HDMI interface can provide data transfer bandwidth up to 5Gbps, can transmit audio signals without compression and high-resolution video signal. At the same time  WISDOM server cabinet without having to send the signal before the D / A or A / D conversion, hdmi extension cable can guarantee the highest quality audio and video signal transmission. The benefits of using HDMI is: only one HDMI cable, you can transmit audio and video signals simultaneously, unlike now need to connect multiple wires; Meanwhile, the wireless digital / analog or analog / digital converter, can achieve higher audio and video transmission quality. For consumers, HDMI technology not only provides a clear picture, and because the audio / video using the same cable, which greatly simplifies the installation of a home theater system. hdmi extension cable high-definition digital multimedia interface (High-definition Digital Multimedia Interface) HDMI 1.0 standard promulgated. On WISDOM 12 port patch panel  pin HDMI and DVI compatible, but with a different package. Compared with DVI, HDMI can transmit digital audio signals, and adds support for HDCP, while providing a better DDC optional features. HDMI supports data transfer rates of 5Gbps, can transmit as far as 15 meters, sufficient to meet a 1080p video and an 8-channel audio signals. And because the audio signal needs a 1080p video and an 8-channel is less than 4GB / s, HDMI therefore WISDOM hdmi switch  there is a great margin. This allows it to be connected with a DVD player, cable receiver and the PRR. Also HDMI supports EDID, DDC2B, and therefore has the HDMI device has a "plug and play" feature, automatically "consultation" between the source and display devices, automatically selects the most appropriate video / audio formats As prolong color on color No access to drawings

Electrical equipment, wire vga cable selection requirements

1 Scope This standard specifies the rated voltage 450V/750V and below PVC (and other materials) insulated wire and cable sheathing selection requirements. This standard cable design trial in material selection. The  Micro HDMI cable following terms and definitions apply to thisstandard.
Oxygen under the conditions stipulated pointing, vga cable sample in oxygen, nitrogen mixed gas stream to maintain a minimum oxygen content required for stable combustion, vga cable is a way to evaluate the performance of the burning material.
2.1 Special electrical properties of the basic electrical properties of the wire and cable 2: conductive core of the resistance (wire DC resistance), carrying capacity. Electrical insulation: insulation  WISDOM vga to hdmi cable resistance, voltage resistance characteristics. 2.2 means the mechanical properties of tensile strength, elongation, bending, elasticity, flexibility, vibration resistance, wear resistance and impact resistance.
2.3 refers to the product of the thermal performance of heat levels, temperature, heating and cooling characteristics of the cable, carrying short-circuit and overload, thermal deformation vga cable synthetic materials and thermal shock resistance, thermal expansion of the material and impregnating or coating material dropping performance.
2.4 corrosion resistance and weather resistance rj45 modular jack  refers to galvanic corrosion, erosion-resistant organisms and bacteria, resistance to chemicals (oil, acids, alkalis, solvents, chemicals, etc.) erosion resistance, salt spray resistance, sunlight, cold, mildew and moisture properties. 2.5 In the case of the aging properties of mechanical means (force) stress, electrical stress, thermal stress and various other external factors effects, or external climate conditions, and the constituent materials of the product to maintain its original performance capability.

hdmi extension cable to connect an extension cord affect signal

Connect the extension cord will certainly be some hdmi extension cable. Connection, the gauge to see if the line is not so good. Not long natural. Plus connector is generally not recommended
Underground with no impact on the wall, of  WISDOM sfp module course, it also depends on the materials used to the line. If the material is not good, it is natural hdmi extension cable affected. General standard materials are no problem.
If you want to embedding, recommended not to buy the materials used bad line. The long-term will require 24AWG. 1, DVI, and HDMI is a digital interface, HDMI but also in addition to the video with audio, typically used to connect DVD player, etc., while the video and audio output devices, it is also called a multimedia interface, a single DVI digital video interface, generally used to access the LCD monitor.
2, the computer connected to a TV, the two WISDOM rca audio cable  interfaces are inappropriate, the adapter module requires a dedicated, high cost, there are losses, the effect is not necessarily directly with both the TV and the video card has a VGA good.
3, VGA is an analog video interface, can be connected directly, just use a good quality cable signal loss actually feel it, pay attention to the audio to separate pull, TV VGA input port side of a dedicated 3.5 audio input jack.
4, to make television sets and monitors simultaneously with, you can buy one for two VGA connector (note pin hole to correspond), click on  WISDOM dvi adapter the video card installed inside the 2nd monitor and check the "extended to the desktop", so You can point your browser to live, the right player to pull on a TV monitor, the computer is not wrong doing other activities.

the development of some of the problems vga cable

In recent years, China's wire and cable industry to flourish and made remarkable achievements, but compared with their foreign counterparts still in the emerging, low level of technology status, independent innovation ability, the product structure is irrational, affordable products  WISDON 90 degree hdmi cable overproduction , and high-tech, low proportion of high value-added products production, industry chain is not perfect. In this regard, the industry's appeal should strengthen supervision and standardize the development of wire and cable industry.
"At present, the domestic wire vga cable market, prices of many small and medium enterprises to become competitive weapon. Due to the wire and cable materials are typically heavy, light engineering industry, the  mini usb cable price of raw materials accounted for 70% to 80% of the cost, therefore, the pros and cons of raw materials largely affect the quality of wire and cable products, according to statistics, China's cable manufacturing enterprises reached 7000, but the scale cable companies much more of a small business, the production of wire and cable industry concentration low, the biggest share of the enterprise market, but also in the amount of 1% to 2.5%. currently on the national wire and cable market, shoddy, fake, defective products is very serious, and rj45 modular jack  even some "free product" there are quality case of non-compliance. Additionally, the industry regulator there "just punishment regardless of" phenomenon, this situation has also led to the wire and cable industry difficult. Currently, the domestic market wire and cable management is very confusing, in this circle there is an unwritten rule Even some of the manufacturers of quality from regular cable to the middlemen will become the "three noes" products.

WISDOM hdmi extension cable MDF uses

MDF is positioned in front of the central office of information points modular device management. The front of the information point cable ( Cat5e or 6 cable ) into the equipment room after the first into patch panels, patch panels will hit the line modules , patch panels and switches then connect a jumper (RJ45 interface) . Overall, the patch panel is used crossover ethernet cable to manage the device , for example, if there is no patch , direct access to the front of the information points to the switch , so that once the cable problems, faced to rewiring. In addition, the management is also a bit confusing, multiple plug may cause damage to the switch port. MDF exist to solve this problem by replacing the jumper to achieve better management.Dosage and overall network is mainly based on the number of points or the floor ( and similar floor , depending on how the system is designed diagram ) points to the number of network configurations . Different buildings , different system designs , patch panels are the main differences between the devices . For example, a building only four rooms , the master device is set on the first displayport to hdmi cable floor , all floors between network points are entering the device , then the patch is equal to the number of the building all network points / patch panel port number ( 24 mouth, 48 , etc. ) , plus got to margin ; If, on the 9th floor of a building has a room , the master device is set on the fourth floor , then in order to avoid long cable , it may partakers devices are located on each floor , and there is exchange equipment . So the main distribution frame between devices on the network is equal to the number of points / patch panel ports ( 24 , 48 , etc. ) 4 layers.