USB-RS232 Converter Adapter manufacturers take you to understand: RS232, RS485, RS422 converter
The manufacturer of USB-RS232 Converter Adapter tells you that the industrial control interface converter is to solve the problem that the physical interface and the electrical interface may not match when the communication equipment is interconnected. RS232/RS485/RS422 can be reliably applied between the main control computers and between the main control computer and the microcontroller or peripherals due to its unique electrical properties to form a point-to-multipoint and point-to-multipoint remote multi-computer communication network , So as to achieve multi-machine response communication. The manufacturer of USB-RS232 Converter Adapter tells you that your computer or device may only have an RS-232 port. The manufacturer of USB-RS232 Converter Adapter tells you that if you want effective and reliable RS-485 or RS-422 communication, you must choose the correct RS-232/RS-485/RS-422 converter for your application. Is it half-duplex or full-duplex? Optical isolation or non-optical isolation? Does it require an external power source or does it not require a power source? The following is a brief introduction to commonly used converters.
The RS-485 interface has the following characteristics:
1. The electrical characteristics of RS-485: Logic "1" is represented by the voltage difference between the two wires as +(2-6) volts; Logic "0" is represented by the voltage difference between the two wires as -(2 -6) Volts.
2. The manufacturer of USB-RS232 Converter Adapter tells you that the highest data transmission rate of RS-485 is 10 Mbits/sec.
3. The USB-RS232 Converter Adapter manufacturer tells you that the RS-485 interface is a combination of a balanced driver and a differential receiver, which enhances the ability to resist common mode interference, that is, good anti-noise interference ability.
4. The standard maximum transmission distance of RS-485 interface is 4000 feet, which can actually reach 3000 meters. In addition, the RS-232-C interface allows only one transceiver on the bus to be connected, that is, single station capability. The RS-485 interface allows up to 128 transceivers to be connected to the bus. In other words, the manufacturer of USB-RS232 Converter Adapter tells you that it has multi-station function, so users can use a single RS-485 interface to easily establish a device network.
The manufacturer of USB-RS232 Converter Adapter tells you that any RS-485 that is wired in a place with strong interference or outdoors should choose a photoelectrically isolated RS-232 to RS-485/422 converter.
RS232 to RS485 bidirectional converter, that is, RS232 to RS485 or RS485 to RS232 converter, using "RS232 charge pump" to drive, so no external power supply is required.
The RS232 to RS485 bidirectional converter adopts the I/O circuit to automatically control the direction of the data flow, so that the RS485 mode conversion can be realized without the handshake signal RTS, DTR, etc., to ensure compliance with the existing communication software and interface hardware, and the transmission rate is 300- 115.2Kbps, to ensure that the program written in RS232 half-duplex mode can run in RS485 mode without modification. Multiple protections make it safer to use.
There are two communication methods, one is point-to-point, and the other is point-to-multipoint asynchronous half-duplex differential transmission.
The manufacturer of USB-RS232 Converter Adapter tells you that the RS232 to RS485 two-way converter has a wide range of applications and meets different needs. It is often used to connect with various RS485 and RS232 devices for two-way mutual conversion data transmission. It is suitable for high-tech industries such as automation industry, security industry, rail transit, electric power and electricity, coal mine energy, Internet of Things, aviation and navigation.
USB-RS232 Converter Adapter manufacturers tell you that active RS485 converters RS485 converters just add an external power supply to the passive RS485 converters. Active RS485 converters generally also have photoelectric isolation and lightning/surge protection. It is recommended Active RS485 converter selected for system operation with high stability and safety.
The above is the RS232, RS485, RS422 converter related support introduced by the USB-RS232 Converter Adapter manufacturer, I hope it will be helpful to you, thank you for reading!