Industrial IoT Serial Device Server PCBA with RS232 RS485 Ethernet

Industrial IoT Serial Device Server PCBA

Custom industrial IoT serial device server PCBA for connecting legacy serial equipment to modern Ethernet networks. The control board converts RS232, RS485 and RS422 serial data to 10/100M Ethernet and supports TCP, UDP and Modbus communication.

The PCBA is designed for industrial device servers, serial-to-Ethernet converters, IoT gateways and remote equipment monitoring systems.

Serial to Ethernet Control Board

The control board integrates an embedded MCU, Ethernet PHY and UART transceivers to provide transparent serial-to-Ethernet communication.

RS232, RS485 and RS422 devices can be connected to Ethernet-based systems without replacing the original serial equipment.

The board supports 10/100M Ethernet with an RJ45 interface and auto MDI/MDIX.

RS232 RS485 RS422 Interface

Different serial interfaces can be configured according to the connected equipment.

RS232 is suitable for point-to-point serial devices, while RS485 provides longer-distance and multi-device communication for industrial environments. RS422 can be used where differential serial communication is required.

Optically isolated serial interfaces are also available for applications requiring additional electrical isolation.

Modbus Gateway PCBA

The serial device server can work as a Modbus RTU to Modbus TCP gateway.

This allows existing Modbus RTU equipment to communicate with Ethernet-based SCADA, PLC and industrial IoT systems.

The controller can support TCP Server, TCP Client and UDP communication modes as well as Modbus TCP/RTU conversion.

Industrial IoT Communication

The PCBA provides a hardware platform for connecting industrial equipment to Ethernet and IoT networks.

It can be used for remote device management, data collection and communication between serial equipment and industrial network systems.

HTTP, DHCP and DNS functions are also supported for network configuration and communication.

Web and AT Command Configuration

The embedded controller can provide web-based configuration for network and serial communication parameters.

AT commands can also be used for device configuration and management.

Firmware updates can be performed through the network or serial port, depending on the product configuration.

Wide Temperature Industrial Design

The serial device server PCBA is designed for industrial environments with an operating temperature range of -40°C to +85°C.

This wide-temperature design is suitable for equipment installed in factory automation systems, control cabinets, outdoor monitoring equipment and other industrial environments.

Wide Input Voltage

The board supports a wide DC input range from 5V to 36V.

This allows the control board to be integrated into different industrial power systems without requiring a narrow fixed input voltage.

Power protection can be designed according to the application requirements.

ESD and Surge Protection

Industrial communication interfaces can be exposed to electrical interference and transient events.

The PCBA incorporates ESD and surge protection circuits based on IEC 61000-4-2 and IEC 61000-4-5 requirements.

Protection components and circuit design can be customized according to the interface and installation environment.

PCB Manufacturing

The serial device server control board supports 2 to 8 layer PCB designs.

Controlled impedance can be applied to Ethernet traces to maintain signal integrity.

The PCB and assembly process can be customized according to the enclosure size, interface configuration and electrical requirements of the final product.

SMT and DIP Assembly

The industrial IoT PCBA supports SMT and DIP assembly for different electronic components and connectors.

The production process can include PCB fabrication, component sourcing, SMT placement, DIP insertion, soldering, inspection, firmware loading and functional testing.

AOI and other inspection processes can be selected according to the product design.

Firmware and Hardware Customization

The serial device server can be customized for OEM and ODM projects.

Hardware modifications can include MCU selection, serial port quantity, interface configuration and isolation options.

Firmware can also be customized for communication protocols, configuration functions, network management and application-specific requirements.

DIN Rail Integration

For industrial control applications, the board can be integrated into a DIN-rail enclosure.

This allows the serial device server to be installed inside industrial control cabinets and automation systems.

The enclosure, connector arrangement and mechanical structure can be customized for OEM products.

Industrial IoT PCBA Applications

Industrial Device Servers

Control boards for serial device servers used to connect industrial equipment to Ethernet networks.

Serial to Ethernet Converters

PCBA for converting RS232, RS485 or RS422 serial communication into Ethernet communication.

PLC and SCADA Monitoring

Communication boards for remote PLC monitoring, SCADA systems and industrial data acquisition.

Smart Grid and Energy Metering

IoT communication hardware for smart meters, energy monitoring equipment and grid-related devices.

Building Automation

Control boards for HVAC, access control and other building automation equipment requiring network connectivity.

Factory Automation

Industrial communication boards for machine networking, production equipment and factory automation systems.

Environmental Monitoring

Embedded communication hardware for environmental monitoring stations and remote sensing equipment.

IoT Gateways

Serial-to-Ethernet gateway boards for connecting field devices to industrial IoT and edge computing systems.

Technical Specifications

• Product Type: Serial Device Server Control Board / IoT Gateway PCBA

• Serial Interfaces: RS232, RS485, RS422

• Isolation: Optically Isolated Options

• Ethernet: 10/100M RJ45

• Ethernet Function: Auto MDI/MDIX

• Protocols: TCP, UDP, Modbus TCP/RTU, HTTP, DHCP, DNS

• Configuration: Web UI / AT Commands

• Firmware Upgrade: Network / Serial Port

• Input Voltage: DC 5–36V

• Operating Temperature: -40°C to +85°C

• ESD / Surge Protection: IEC 61000-4-2 / IEC 61000-4-5

• PCB Layers: 2–8 layers

• Assembly: SMT + DIP

• PCB Feature: Controlled Impedance Ethernet Traces

• Quality: ISO9001:2015 / IPC-A-610 Class 2/3

• Compliance Support: CE / FCC Documentation

• Customization: OEM / ODM Hardware and Firmware

• Production: Prototype, Small Batch and Mass Production

Custom Industrial IoT PCBA Manufacturing

The serial device server control board combines PCB manufacturing, embedded hardware development, PCBA assembly and firmware customization for industrial communication products.

From RS232, RS485 and RS422 interface design to Ethernet communication, Modbus gateway functions and industrial protection, the PCBA can be customized for different device-server and IoT gateway applications.