显示标签为“cat5e patch cord”的博文。显示所有博文
显示标签为“cat5e patch cord”的博文。显示所有博文

2014年12月22日星期一

The introduction of electric wire and cable

Wires and cables used to transmit electric (magnetic) energy, information and realize electromagnetic energy conversion of wire products, wire and cable generalized also referred to as the cable, special cable refers to insulated cable, it can be defined as:aggregate is composed of the following parts; one or a plurality of insulated wire core,and their respective may have the coating layer, the total protective layer and theouter protective layer, the cable can also have additional no insulation of conductor.For the transmission of electric (magnetic) energy, information and realize electromagnetic energy conversion of wire products.
General electric wire and 21 pin scart cable is also referred to as the cable, special cable refers toinsulated cable. It can be defined as, aggregate is composed of the following parts:one or a plurality of insulated wire core, and their respective may have a coating layer, the total protective layer and the outer protective layer, the 21 pin flat scart cable can also have additional no insulation of conductor. The main features of products: pure metal conductor, no insulation and sheath layer, such as steel core aluminum stranded wire, copper bus, electric locomotive line; processing technology is the pressure processing, such as melting, rolling, drawing, stranding / pressing twist; products are mainly used in suburban, rural, user the main line, switch cabinet etc..

2014年4月27日星期日

terminal block device for voltage requirements

Terminal confirm the selected power terminals to meet the power supply temperature range, the current and voltage requirements to help ensure long-term reliability of the system. In addition, if you choose the power terminal devices to meet the market requirements with a wiring technology, and to ensure user-friendly operation in the design, it will greatly increase the probability of success of the final product. Especially with  displayport 1.2 the effective wall thickness of high-density, extensive use of TC terminals, insulators increasingly thin. This insulating materials, precision injection molds and molding process and put forward a more restrictive and burdensome requirements. Due to the presence of a metal-insulator surface or interior extra material, terminal block surface dust, moisture flux, such as pollution, organic material precipitates and harmful gases adsorbed water film on the surface of the membrane and fuse to form ion conductive channels, absorb moisture, mildew, aging and other insulating materials reasons, will cause a short circuit, leakage, breakdown, poor insulation and low insulation resistance phenomenon. Wiring boards are generally the maximum current 10A Voltage 250V, plug and socket contact is the Department has resistance, current will flow through the heat, the maximum current of 10A refers good contact, the telephone connector  contact through the maximum current; Voltage 250V means wiring board insulation can withstand the maximum working voltage exceeds this value may leak. For more than one section of the terminal is equipped with a uniform level of accessories such as side panels, grouping separator, and so on. potential distribution terminal block can be fixed bridge pieces or insertion into the terminal wiring central cavity. The total separation of adverse swap terminals and other causes of excessive force, and it is a common disease. These types of failures are generally able to detect and eliminate the use of the pcb spring terminal block  inspection process. To make the accuracy of various electronic devices, high stability, in addition to a stable power supply, but also must have a stable reference potential. Insulated copper wire can be used as a larger cross-sectional area leads directly connected to one end of the reference potential, and the other end for electronic equipment DC ground. Anti-static grounding and shielding grounded to prevent static grounding intelligent building computer room within a dry environment to interfere with electronic devices carried called anti-static grounding. To prevent external electromagnetic interference, ground the shield electronic devices and equipment inside and outside the outer shell or worn metal tube, called the shield grounding.

2014年4月17日星期四

WISDOM terminal block is a little drawback

"Interrupted multiple lines using Terminal" (especially touched electrical power, the current is large, the impact of heat on the line terminals working properly) need to pay attention, and the presence of risk.
Its long-term risks, terminal block is not short-term. Because of the time, on screw terminals will corrode, subject to thermal expansion and contraction, will naturally loose, copper oxide, and so some of WISDOM fiber optic connectors  the reasons, resulting in poor contact heat, and accidents.
Buildings should now minimize the use of terminals, whenever possible puncture clamp. Screw terminal called the Dragon three rotating terminal! Originated in the United States! After the production of imitation Taiwan! There are currently only in the production of Taiwan's Golden Pen!
Wire terminals for easy connection and it WISDOM rca cable  is generally used to connect the point source line clockwise twist in a very simple, terminal block is going to take a few shares of wires into the appropriate types of terminals connected together and tighten the wires wiring applications, it is actually some sealed inside an insulating plastic sheet metal, wire can be inserted into the hole at each end, for tightening or loosening screws, such as two wires, and sometimes need to be connected, and sometimes WISDOM scart splitter  need to disconnect, Then you can use the terminal to connect them, and can be disconnected at any time without having to weld them together or intertwined, it is convenient

2014年4月16日星期三

WISDOM terminal block insulation materials used

Data transfer is not current fluctuations through , but by pulsating waves , using a special optical fiber as the medium . From the output port fiber terminal blocks , you can see the red light , it is not a laser , nor be harmful to the human eye . WISDOM terminal block dirt and dust will hinder the transmission of light , so when you do not touch the connector to use , do not have to take the time to dust caps on the port , in addition , fiber optic cable can not bend excessively twisted, otherwise it will cause permanent damage and can not be used. Optical and electro-optical fiber terminal requires two conversions , will inevitably lead to loss of the phenomenon , but  usb connector unlike copper fiber susceptible to electromagnetic interference , the long-distance transmission can have a better guarantee. Same element group , before the number preceded by the letter , if not necessary to distinguish phase , available digital -5N, -2.5, -16 mark.
Factors affecting the appearance of WISDOM terminal block terminals : Terminal affinity in terms of appearance and the user have played an important role , power terminals must be easy on-site installation , as they are often easy to see the product installed in the panel front end. Thus , marketers often want the appearance of power terminal block products have some say. Rated cross-section to the preferred terminal series 10mm2 , the WISDOM optical fiber cable  pressure drum lifting frame structure are used . Their role is based on the principle of so-called " lift cylinder principle " as the basis . When tightening the screws , the screws on the top of the conductor leaving Clamp upward movement , thereby Clamp the wire conductor and eventually tie tightly clamped . Since UK terminals can have a high contact force electrical conductor wires embedded in a soft tin plating layer . Such transition resistance on 4mm2 terminal was only 0.3Ω, significantly lower than the lowest value IEC947-7-1/EN60947-7-1 standards , in which the pressure tube frame structure by lifting the upper "Reakdyn- gap " to achieve self-locking screws . Tighten the screws to increase the lift cylinder shaped elastic . In order to meet the high rca audio cable  temperature, low temperature , flame retardant , to ensure stable and reliable part geometry .
Terminal block insulator mostly using thermoset molding . Interface seal body with silicone rubber seal line body molding and other molding . Preloaded - pin jack is touching the body , collectively, into welded, crimp and fit around , etc. , used for electrical connections .

2014年4月2日星期三

plug in terminal of the main explanations

Terminal is the literal interpretation of the meaning of the final end . Like the Internet , said , that we finally have a home computer terminal . Advertising in the same way as those who see the flyers to WISDOM displayport to hdmi cable  consumers last , pop, x display rack , etc., all belong to the terminal advertising materials .
In ancient times the computer world , then ah , no PC, using both large and small machines, centralized computing , plug in terminal connected to the computer user and the host through the serial port using a device that is similar to the display device terminal , the English called the terminal, but , ah, can only display characters. Terminal Terminal usually refers to those " dumb" user equipment and a centralized host WISDOM network cabinet  systems ( such as IBM mainframe computers ) connected . Terminal receives keyboard input from the user , and these inputs to the host system . Host processing system  and the user's keyboard input command and then returns the output and displayed on the terminal screen . The personal computer can run some programs called terminal emulator to mimic the work of a dumb terminal. Terminal is a device for the end user and host communications. This device can be a monitor , a keyboard device or a printing device. They are connected by coaxial cable and a group  WISDOM cat5e patch cord controller (cluster controller), the group controller can be connected directly to a host computer , which can also be connected to the host via a communication controller . Up to 32 terminals can be connected to a single group controller, depending on the specific figures of this group controller model. plug in terminal each terminal can use a separate cable to connect to the cluster controller , you can in order to save the cable , connect it to a nearby multiplexer , and the multiplexer is connected via a cable distant cluster controller on .