How to Select the Conductor Type of Parking Lot System- TigerWong

The common conductors of parking lot system include power line, communication line, signal line, ground induction coil and many other conductors. We have said how to route before. Today, let's talk about how to select the conductor type. 1. Power cord. The power line is selected according to the load power. The power line commonly used in the parking lot system is rvv-3 * 1.0mm & sup2;, It can supply power to all equipment. If the control bus is used, rvv-3 * 2.5mm & sup2; is recommended;, Because we need to consider the power supply and other equipment of the sentry box. 2. Communication line. The communication line is used to connect the equipment to the computer. It depends on which communication mode you use. For example, if you use RS485 communication, the communication line generally adopts rvvpj-3 * 0.75mm & sup2; Twisted pair shielded wire; 3. New control signal. Rvv-ax0.5mm2 conductor is generally used. If the communication wiring is far away, it is recommended to lay 1-2 more cores. 4. Intercom line. The intercom line transmits audio signal, generally rvvpj-3 * 1mm & sup2; The twisted pair shielded wire is used to connect the intercom extension and the intercom host. 5. Ground induction coil. The ground induction coil is buried under the lane, and bv-1.5mm & sup2 is generally used; Multi strand waterproof flexible copper wire; 6. Network cable. Network cable is used for the connection between computer and server. Generally, there are five types of twisted pair, super five types of twisted pair, coaxial cable, optical cable, etc. Coaxial cable is rarely used now because the communication speed is too slow. Now it is mainly used in Category 5 cable and optical cable. Super class 5 line: the communication distance is 100m and the communication speed is 100m. It is widely used in parking lot system. Optical cable: the communication distance is more than 500m, and the communication speed can reach more than Gigabit.