Nowadays, most of the network cameras installed are still used for transmission. Most commonly used are Super Category 5 and Category 6 lines. If the 100M network is usually a Super Category 5 twisted pair cable, the Gigabit network will take the Category 6 twisted pair cable.
Wire diameter of the network cable:
Here we talk about the national standard super five and six types of wire diameter, because the wire diameter of the network line is available in a variety of ways, non-standard and many. The national standard super five wire diameter is 0.5, and the six national standard wire diameter is 0.56. In theory, the thicker the wire diameter, the farther the distance is transmitted. However, the distance of transmission is also closely related to the material of the network cable.
Material of the network cable:
Common materials on the market: alloy; high aluminum; high silver; pure copper; oxygen free copper. The lowest price of the alloy is iron and the worst.
High-conductivity aluminum We commonly call it copper-clad aluminum, which is mainly aluminum, easy to oxidize, and the resistance will become larger after oxidation. This is why the copper-clad aluminum network cable is used for monitoring and monitoring. There is no problem when the new installation is completed. When there is a period of time, there will be no signal problems. The material of high-conductivity silver is also aluminum, and the quality is better than that of copper-clad aluminum. This is called this, and there is no silver in the material (it is estimated that the price of Meng Xiaobai is more expensive than that of high-conductivity aluminum). Pure copper material, the quality is better than aluminum, but the resistance is still relatively large. Oxygen free copper, also known as copper. At present, the most ideal network cable for the national standard, it is recommended that you do the monitoring to try to choose this network cable.
Know the material if you choose or identify it?
In addition to buying a little more expensive brand price, if you encounter a business is not kind, you have to test it yourself. The commonly used detection method is the multimeter measuring resistance.
A box of cable is normally 300 meters (actually should be about 305), the whole box of test resistance, super five types of resistance should be 27-30 euros, six types of lines around 21-24 euros.
The reliable transmission distance of the network cable is about 100 meters. Do not hear on the Internet that someone else transmits 120 meters, 150 meters without problems. The distance that the signal is transmitted on the network cable assists will be attenuated and the data packet will be lost. After 100 meters, there may be images, but if there are problems in the future, the maintenance will be very troublesome.
Double Girder Gantry Crane With Winch
Both the end of horizontal and vertical rail are equipped with Limit Switch and baffle to avoid the dropping of the main engine.
The internal friction clutch of the hanging machine can lead to the motor idling when over weight hanging and prevent the machine body and load chain from damage.
The upper and lower limit switches will be immediately prompted to stall the motor when over weight lift. Also, there is overheating protection device to protect the motor from overheating and burning.
The emergency stop button will make the whole system power failure and will be restarted manually.