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 Compatible, so you need to use level conversion circuit to connect with TTL circuit. 2. 5. The inteational standard of RS-485 does not stipulate the standard of RS485 interface connector, so you can use terminal blocks or DB-9, DB-25 connectors. Because the RS-485 interface has good anti-noise interference, long transmission distance and multi-station capability, the above advantages make it the preferred serial interface. What are the characteristics of RS-485 compared to RS-232-C interface? Answer: Since the RS-232 interface standard appeared earlier, it is inevitable that there are shortcomings, mainly as follows: (1) The signal level of the interface is high, which is easy to damage the chip of the interface circuit, and because the level is different from TTL level.2Kbps. The RS-485 interface allows the connection of up to 128 transceivers on the bus, that is, the RS-485 has multiple Machine communication capability, so that users can use a single RS-485 interface to easily establish a device network. (2) The transmission rate is low.5PF/M, and the terminal load resistance is 100 ohms. The Boss RS-485 interface is a de facto industry standard. This length data is mainly limited by the influence of signal distortion and noise. When the data signal rate drops below 90Kbit/S, assuming the maximum allowable signal loss is 6dBV, the cable length is limited to 1200M. Now due to the new UART chip 16C550, the baud rate reaches 115. The condition is that RS-422 must be able to support multi-machine communication.NO.51mm), the bypass capacitance between the lines is 52. Among them, about 99% of users work in the range of 10-20% symbol distortion, so the maximum distance in actual use will be far more than 50 feet. Can the Waterproof Connectors Manufacturers be shorted as RS-485 A, and the Z-B of RS-422 can be shorted as RS-485 B? Answer: Not necessarily. The highest data transmission rate of RS-485 is 10Mbps. The main difference is: RS-422 has 4 signal lin,Waterproof Connectors Manufacturers ...ادامه مطلب

This Pluggable terminal blocks Companies is an upgraded version of the J1772 standard that was first passed in 1996, adding the latest generation of models that need to be connected to the grid to charge the vehicle's high-energy batteries. According to SAE, this is the world's first and only standard recognized by the entire industry in this field. The standard number is 'J1772-Electric Vehicle and Plug-in Hybrid Vehicle Conductive Charging Interface', approved by the SAE Motor Vehicle Committee; it describes in detail the physical and electrical characteristics of the connector and the vehicle input interface. The J1772 committee has begun to develop higher voltage, DC charging Detailed standards. 'The development of the J1772 standard is a successful case of cooperation between global OEMs and suppliers, the electric utility industry and the professional and technical personnel in govement departments,' he said. The J1772 standard contains a detailed description of the five-pin connector for 120V and 240V charging. Donald Anderson, director of engineering at Chrysler and chairman of the SAE Hybrid Vehicle Technical Standards Committee, called J1772 of immense importance. Connector manufacturers that meet this standard can choose to put the 'SAE J1772' mark on their products. The mark not only provides consumers with an identification aid, but also assures buyers that the products with the mark comply with the SAE J1772 standard. Kissel also said that even if the voltage provided by each country is different (for example, China is 220V), the J1772 standard can still be used in various markets. He also pointed out that due to the differences in the structure of electric vehicles in various countries, it is difficult to say that the J1772 standard is outside the United States. Kissel revealed that the entire development process of the standard only involved about 5,000 person-hours in meetings. During his tenure as SAE Mot,Pluggable terminal blocks Companies ...ادامه مطلب