E810-Z01/E810-Z01M Production  Introduction

E810-Z01/E810-Z01M is an RS232 to RS485 isolation converter launched by EBYTE., which supports the conversion between three-wire RS232 interface and two-wire RS485 interface. Photoelectric isolation technology is used to protect both parties of communication from interference.The circuit is designed according to EMC level 3 standard, with 1.5KV isolation voltage, electrostatic protection contact discharge 4KV, air discharge 8KV, and differential mode 1KV and common mode 2KV lightning surge protection, which can effectively isolate the damage caused by lightning and static electricity to the equipment. No configuration is required, and transparent data transmission between the master and slave interfaces.

Features

• The power supply supports DC 8~28V wide voltage input and has overcurrent and reverse
  connection protection

• Conversion between three-wire RS232 interface and two-wire RS485 interface
  No configuration required, ready to use

• The signal interface has static electricity, lightning strike, and surge protection

• The signals and power supplies of both communication parties are completely isolated
  

• Using super strong anti-interference and high-speed isolation devices, the baud rate can reach up to 460800bps

• RS485 supports up to 32 nodes

Parameters

The Function of RS232 to RS485 Interface Converter

The RS232 to RS485 interface converter is an important device. The RS232 to RS485 bus conversion equipment plays a crucial role in long - distance data communication between computers, external devices, or intelligent instruments with different standard serial interfaces. The RS232 to RS485 interface converter is significant in aspects such as interface conversion, enabling long - distance multi - machine communication, extending communication distance, increasing transmission rate, simplifying system structure, and enhancing system stability. The following are the main functions of the RS232 to RS485 interface converter:

1. Interface Conversion

The converter can convert the TXD (Transmit Data) and RXD (Receive Data) signals of the RS - 232 serial port into two - wire balanced half - duplex RS - 485 signals. This conversion allows devices with RS232 interfaces to communicate with those with RS - 485 interfaces, thus expanding the compatibility and application scope of the devices.

2. Realization of Long - distance Multi - machine Communication

The RS - 232 interface is a point - to - point communication interface, which cannot support communication among multiple machines. Moreover, the transmission distance between devices is generally no more than 15 meters. In contrast, the RS - 485 interface can support point - to - point and point - to - multi - point long - distance multi - machine communication networks, enabling multi - machine response communication. By using the RS232 to RS485 interface converter, RS - 232 devices can be connected to the RS - 485 network, thus achieving long - distance multi - machine communication and improving communication efficiency and flexibility.

3. Extension of Communication Distance

The transmission distance of the RS - 485 interface far exceeds that of the RS - 232 interface, generally reaching up to 1.2 kilometers or even farther (the specific distance depends on the transmission medium and signal quality). Therefore, using the RS232 to RS485 interface converter can significantly extend the communication distance, making the communication between devices more convenient and reliable.

4. Increase of Transmission Rate

Compared with the RS - 232 interface, the RS - 485 interface has a higher transmission rate. By converting RS - 232 signals to RS - 485 signals through the converter, the data transmission rate can be increased to meet higher - requirement communication needs.

5. Simplification of System Structure

In applications such as industrial automation control systems, access control systems, parking systems, and self - service banking systems, data communication between multiple devices is often required. Using the RS232 to RS485 interface converter can connect multiple RS - 232 devices to the same RS - 485 network, thus simplifying the system structure and reducing the wiring cost and complexity.

6. Enhancement of System Stability

Optical isolation technology is commonly used in RS232 to RS485 interface converters. Through optical isolation, the electrical connection between the input and output circuits can be effectively isolated, preventing interference from factors such as current, noise, and high voltage. This isolation can improve the stability and reliability of the system and ensure accurate data transmission.

Common Application Scenarios of RS232 to RS485 Interface Converter

The RS232 to RS485 interface converter is widely used in various scenarios because it can enable long - distance data communication between different standard serial interfaces. The following are some specific application scenarios:

1. Industrial Automation Control System

In the field of industrial automation, it is often necessary to connect the main control computer with various peripheral devices or single - chip microcomputers to achieve remote monitoring and control. The RS232 to RS485 interface converter can convert the RS - 232 interface of the main control computer to the RS - 485 interface, facilitating connection to the industrial on - site communication network and realizing long - distance multi - machine communication and data transmission.

2. One - Card - Pass System

The one - card - pass system usually includes multiple subsystems such as access control, attendance, and consumption. Data communication between these subsystems is required to achieve information sharing and synchronization. By using the RS232 to RS485 interface converter, RS - 232 interface devices of different subsystems can be connected to the RS - 485 network, realizing efficient data transmission and unified management.

3. Access Control System

The access control system needs to read card information and control the opening and closing of access control devices. In some large - scale access control systems, multiple access control controllers and card readers may need to be connected. Through the RS232 to RS485 interface converter, the RS - 232 interfaces of these devices can be converted to RS - 485 interfaces, realizing long - distance communication and data transmission for convenient access control and management.

4. Parking System

The parking system needs to record vehicle entry and exit information and conduct toll collection and management. By using the RS232 to RS485 interface converter, the RS - 232 interfaces of different devices in the parking system can be converted to RS - 485 interfaces, realizing long - distance communication and data transmission for convenient parking management.

5. Self - service Banking System

The self - service banking system includes various self - service devices such as ATMs and query machines. Data communication between these devices is required to process business and synchronize information. Through the RS232 to RS485 interface converter, the RS - 232 interfaces of these devices can be converted to RS - 485 interfaces, realizing long - distance communication and data transmission, thus improving the operating efficiency and user experience of the self - service banking system.

6. Canteen Meal - Selling System

The canteen meal - selling system includes various ordering and settlement devices. By using the RS232 to RS485 interface converter, the RS - 232 interfaces of these devices can be converted to RS - 485 interfaces, realizing long - distance communication and data transmission for convenient canteen management and settlement.

7. Attendance Management System

The company employee attendance management system needs to record employees' working hours and attendance information. Through the RS232 to RS485 interface converter, the RS - 232 interface of the attendance device can be converted to the RS485 interface, realizing long - distance communication and data transmission for convenient attendance management and data statistics.

8. Highway Toll - Collection System

In the highway toll - collection system, it is necessary to connect the main control computer with the devices at each toll station for remote monitoring and management. Through the RS232 to RS485 interface converter, the RS - 232 interfaces of these devices can be converted to RS - 485 interfaces, realizing long - distance communication and data transmission, thus improving the operating efficiency and management level of the highway toll - collection system.

In addition to the above common Internet of Things application scenarios, the RS232 to RS485 interface converter can also be widely used in comprehensive communication system application fields such as pan - tilt control, power monitoring, and environmental monitoring. In conclusion, the RS232 to RS485 interface converter plays an important role in multiple fields such as industrial automation, intelligent transportation, and financial services, and is an important tool for realizing long - distance multi - machine communication and data transmission.