RS485 to infrared data collector DC-12V power- supply stable performance! | Обустройство дома

RS485 to infrared: 1. Regarding distance: the actual communication distance of 485 is generally less than 1000 meters, and the communication distance of 1200 meters is usually equipped with repeaters. In addition, the actual use is better not to exceed 300 meters. 2. About baud rate: all support within 2400. Electric meters are generally 1200, and ordinary data communication is 2400. 3. About the communication protocol: 645 protocol supporting the ammeter does not have infrared learning function and can not be used for household appliances control. 4. For the time being, 485 networking is not supported, only for point-to-point communication, please note! 5. The power supply is divided into DC and AC power supply. The DC power supply is 12V~24V and the AC power supply is 220V. 6. Regarding the material grade, the industrial grade is currently used, and the working temperature is - 20 to 85 degrees. The actual recommended temperature is less than 50 degrees. Some explanations about assembly: Most meters are packed in meter boxes, some of which are hung indoors. In view of the above situation, it is explained that: 1. Electric meter box: Generally, electric meter box is sprayed with iron shell, so magnet adsorption is the simplest way to fix it. See below     If the table box can be installed with a hook, the general choice of 3KG can be as follows The best way to use a hook is to stick it under the module with double-sided glue for stability.       2. For indoor meters, suckers or hooks can be used directly. No double-sided glue can be used directly. Because the weight of the module is less than 100g, the ordinary sticker hooks can be fixed. The basic fixed principle is beautiful and reliable. Suction cups or hooks are recommended and double-sided glue is less used.