The DELCOM-3222 RS-485/232C is a communication interface conversion device produced by DELTE. It is mainly used to achieve the conversion between two different communication interfaces, RS-485 and RS-232C, so as to enable data transmission and communication between different devices and systems. In fields such as industrial automation, building automation, and data collection, it is often the case that different devices use different communication interfaces. This product can solve the problem of interface incompatibility and realize the interconnection of devices.
Functional Features
- Dual Interface Conversion: It is equipped with both RS-485 and RS-232C interfaces, and can perform two-way data conversion between these two interfaces. The RS-485 interface is often used for multi-point communication and long-distance transmission, and has the advantages of strong anti-interference ability and long transmission distance. The RS-232C interface is a common serial communication interface for computers and is widely used in the communication between various devices and computers.
- High-speed Data Transmission: It supports a relatively high data transmission rate, which can meet the requirements of data transmission speed in most industrial and commercial applications. The specific transmission rate may vary according to the actual application scenarios and device configurations, but generally can reach a range from dozens of Kbps to several Mbps.
- Electrical Isolation: To improve the stability of communication and anti-interference ability, this product may adopt electrical isolation technology to electrically isolate between the RS-485 and RS-232C interfaces, effectively preventing the influence of electrical interference on communication and protecting the safe operation of the device.
- Status Indication: It usually comes with corresponding status indicator lights to display the working status and communication status of the device. For example, there may be power indicator lights, data sending indicator lights, data receiving indicator lights, etc., which are convenient for users to understand the running status of the device in real time and to discover and solve communication problems in a timely manner.
Technical Parameters
- Interface Types: The RS-485 interface is a standard differential signal interface, supporting half-duplex communication; the RS-232C interface is a standard serial interface, supporting full-duplex or half-duplex communication.
- Communication Rate: It can support a variety of communication rates, such as 9600bps, 19200bps, 38400bps, 57600bps, 115200bps, and even higher rates, depending on the specifications and configurations of the product.
- Transmission Distance: Under ideal conditions, the transmission distance of the RS-485 interface can reach about 1200 meters; the transmission distance of the RS-232C interface is relatively short, generally within 15 meters.
- Electrical Characteristics: The common-mode voltage range of the RS-485 interface is usually from -7V to +12V, and the differential voltage range is from -6V to +6V; the signal level standard of the RS-232C interface is: Logic “1” (MARK): -3V to -15V; Logic “0” (SPACE): +3V to +15V.
- Working Power Supply: It may be powered by an external power supply. The common power supply specifications are DC 5V or 12V, and the power consumption is relatively low to ensure the energy-saving and stable operation of the device.
Application Areas
- Industrial Automation: On industrial production lines, it connects different types of devices, such as PLCs (Programmable Logic Controllers), sensors, and actuators, to achieve data exchange and the transmission of control commands between devices. For example, it converts the data of sensors using the RS-485 interface into the RS-232C interface for transmission to a computer for data processing and analysis.
- Building Automation: It is used to connect various automation devices in buildings, such as access control systems, elevator control systems, and air conditioning control systems. Through interface conversion, it realizes the communication and integration of different devices and improves the intelligent management level of the building.
- Data Collection Systems: In data collection applications, it converts the RS-485 signals of field devices into RS-232C signals, making it convenient to connect with computers or other data processing devices and realizing the real-time collection and transmission of data.
- Security Monitoring: In security monitoring systems, it connects devices such as surveillance cameras and access control controllers to achieve communication and data transmission between devices and ensure the normal operation of the security system.
