Ningbo XISXI E-commerce Co., Ltd , https://www.petspetsproducts.com
1. As a computer product, the cash register has certain requirements for the external power supply. First, the power supply must have a good grounding, and the resistance must be less than 1 Ω. If the power supply is not grounded or the grounding is poor, the chassis may be charged, which may pose a safety hazard to the workers.
It also has a certain impact on the stable operation of the cash register.
2. The grid voltage of the cash register is 220V/50HZ AC. The allowable fluctuation range of the grid voltage is ±10% of the rated value. Before the equipment is powered on, please check whether the power supply meets the voltage requirements of the product. Only confirm that the external power supply is normal. Only when the device is powered on.
3. The neutral and fire wires of the power supply socket must not be connected incorrectly. The protection ground wire of the cash register must not be directly connected to the zero wire of the power grid in the equipment room. The ground wire must be connected to the absolute ground of the building.
4. In order to avoid interference from other power equipment to the cash register, the cash register must have a separate power cord from the power distribution room, and cannot share a line with other high-power equipment, such as: power tools, refrigerators, freezers, electric heaters, Air conditioners and other devices share one power supply.
5. In order to avoid the sudden interruption of grid power supply, grid voltage fluctuations, and instantaneous spikes, a suitable uninterruptible power supply voltage (UPS) should be selected as needed. However, the protection ground of the UPS voltage should be connected.
6. At boot time, you should first turn on the external device power switch, and then turn on the host power. In the shutdown, you should first turn off the power of the host, and then turn off the power of the external device.
7. Since most of the cash register products use ATX power supply, the power is not completely turned off when the main power is turned off. If it is ensured that the power is disconnected, the outlet switch should be disconnected or the power plug should be unplugged, especially in thunderstorms. Unfavorable, it may cause lightning strikes on the equipment.
8. In order to reduce the interference of the power supply to the data line signal, the power line and the data line (display, network cable, printer data line, serial communication line) should be kept at a distance of more than 100 MM when installed, and the power and data lines must not be allowed. Wrap it together.
What are the precautions when installing the cash register? Let me tell you about it by Xiaobian.
May 26, 2023