Zhaoyuan where parking access card sold, where there is parking access card Jiangdu sell

 Zhaoyuan where parking access card sold, where there is parking access control card Jiangdu sell intelligent parking system is a combination of a lot of equipment together, in these devices perform their duties, to be able to play the most important function of the parking management system . But one of the devices need to be able to operate normally installed correctly, the following will introduce technical requirements about the installation of these devices Blue Belfast technology! - Parking System Parking System Selection common construction wire conductors have power lines, communication lines, signal line, a sense coil, and many other conductors, we have said before how wiring, So today, we are concerned that how to choose the type of wire. 1. The power cord. Power lines are based on the size of the load power selected, parking systems generally use the power cord is RVV-3 * 1.0mm2, to meet the power supply to each device, if control of the bus and the like, it is recommended RVV-3 * 2.5 mm2, because of the need to consider the sentry box and power supply equipment. 2. communication lines. Communication lines are used to connect the device with the computer, this depends on what kind of communication that you use, for example, if you are using the RS485 communication, the communication line is generally used shielded twisted pair cable RVVPJ-3 * 0.75mm2; and 3. Control The new signal. Generally used RVV-AX0.5mm2 wire, if the communication wiring distance, the proposed multi-core fabric 1-2. 4. intercom lines. Intercom line transmission of an audio signal, generally using a shielded twisted pair cable RVVPJ-3 * 1mm2, is used to connect intercom extension and intercom host. 5. The sense coil. Sense coil buried in the lane underground, generally using a BV-1.5mm2 multi-strand soft copper water; 6. Network cable. Network cable is used to connect a computer and the server, generally used are five twisted pair, UTP twisted pair, coaxial cable, fiber optic cable. Coaxial cable since the communication speed is too slow, now rarely used, is now mainly used UTP cable and fiber optic cable. Over five lines: communication distance of 100 meters, the communication speed 100M, widely used in parking systems. Cable: 500 meters above communication distance, communication speed up to Gigabit over.