WISDOM vga cable and cable industry still wary of the drawbacks

With the introduction of five- integrated transportation system planning , the state railway construction policy warmer, promote urban rail transit construction across the news heard booming transportation construction , for cable companies is undoubtedly favorable . However, the same should also see that the cable industry development and construction of rail transit is not completely synchronized.
WISDOM vga cable users centralized monopoly WISDOM hdmi to dvi adapter  enterprises decentralized , less large central enterprises , no international brands such as traditional cable market criticized in the field of rail transport cable still exists . Compared with traditional cable market , due to the metro cable , marine cable and other cables strictly retardant , halogen-free , smoke suppression requirements ; country regional differences, such as the hot and humid climate of the South and the high and low voltage power cables and more ants environment , mica insulation fireproof cable accessories , mineral insulated cable fire , leakage coaxial cable and other high-end products , our R & D capability is still less than the current low level of popularity , in part dependent on imports of high-end products .
In addition , WISDOM vga cable due to the cat5e patch panel  rapid development of rail transport market , capable of producing less sophisticated end product companies , one of the few companies with limited human and financial resources, in order to meet customer demand, intense side of the purchase of equipment , additional human resources side , resulting in increased fixed costs , a shortage of liquidity , the objective follow-up research and development capabilities of the enterprise caused some impact . The small business , capital, technology, personnel are relatively weak, the product quality can not be guaranteed due to its low price , the market tends to be dominated by them . These companies did not form their own core competitiveness , it is difficult to resist the impact of the market.
Then, in the field of rail transport , the cable companies WISDOM fiber optic cable  should be alert to how the drawbacks of traditional markets , namely domestic enterprises should improve their technical level, the high-end product development and foreign cable snapping ; second is to break the monopoly of the current technology , so that more enterprises to participate come ; Third, production of cable products should be in accordance with national standards.

Polyethylene insulated control vga cable advantages

Polyethylene insulated control cables advantage
1 almost completely maintained polyethylene polyethylene inherent high electrical performance, high breakdown strength, insulation resistance, low dielectric constant, low dielectric loss.
2, low density polyethylene, metal-sheathed cable is WISDOM 12 port patch panel  not so light weight per unit length of cable laying and convenient.
3, vga cable polyethylene has a high heat resistance and aging resistance, low dielectric loss, long-term allowable working temperature of 90 ℃, therefore, the transmission capacity can be greatly improved.
4, it is appropriate vertical drop and vibration high places laying.
5, good chemical resistance.
6, vga cable with good  WISDOM rj45 keystone jack insulation, waterproof, corrosion-resistant, pressure characteristics.
7, the use of flame retardant materials, improving the flame retardancy of the cable, and reducing the concentration of harmful fumes escaping combustion gases to improve the safety and reliability of the cable.
8, shielded control cable with a small dielectric loss. Strong ability to transmit signals. Anti-jamming performance and  WISDOM scart cable good features that can be reliably transmitted weak analog signals.

What is the difference vga cable and wires are

Wire by one or a few soft wire composition , outside vga cable package with light soft sheath ; cable is composed of one or several conductors insulated package composed of a tough outer layer to the WISDOM usb extension cable  outside and then pack made ​​of metal or rubber . vga cable and wire in general by wire, insulation and protection of the foreskin skin composed of three components . Common characteristics of the cable as follows : CEF - ethylene propylene rubber insulated neoprene jacket , marine fire-retardant power cable. CVV - PVC insulated , PVC sheathed flame retardant power cable ship . Oxygen chamber wires often used BV, BX, RV, RVV series of wires, where : BV - PVC insulated copper wires , allowing long-term temperature 65 ℃, the WISDOM micro usb cable  lowest temperature of -15 ℃, operating voltage AC 500V, DC 1000V, fixed installation indoors and outside, can also be dark for surface dressing . BX - rubber insulated copper wire , the maximum temperature 65 ℃, spreads in the room. RV - PVC insulated single core flexible cable, the maximum temperature 65 ℃, the lowest temperature -15 ℃, internal wiring voltage AC 250V, DC 500V, used instruments and equipment . RVV - PVC insulated and sheathed copper wire , allowing long-term working temperature of 105 ℃, operating voltage AC 500V, DC 1000V, for moisture, mechanical protection requirements, often moving and bending the occasion. In fact, the " wire " and " Cable" and  WISDOM dvi cable there is no strict boundaries. The core number is usually small, small diameter products , the simple structure of the product known as wire , not insulated as bare wires, the other is called the cable ; conductor cross-sectional area larger ( greater than 6 mm2 ) as a large wire , representing small ( less than or equal to 6 mm2 ) as a small wire , insulated wire and wire cloth called to say relatively simple, easy to understand ! ! cables generally have more layers of insulation , mostly multi-core structure around the cable tray , the length is generally greater than 100 m . Generally single insulated wire .

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.