RS422/RS485 to Ethernet
Connect RS422 or RS485 field devices to a TCP/IP Ethernet network.
IOT9031BD
DIN-Rail RS422/RS485 to Ethernet Serial Server
Connect RS422 and RS485 field equipment to Ethernet with DIN-rail installation and wide-range DC or PoE power.
DTECH IOT9031BD is a DIN-rail serial device server for bidirectional transparent transmission between RS422/RS485 equipment and TCP/IP Ethernet networks.
Hover to zoomDTECH IOT9031BD DIN-rail RS422 RS485 to Ethernet serial server on a white background
Serial InterfaceRS422 / RS485Terminal-block connection
Ethernet1 x RJ45TCP/IP network connection
Baud Rate300–921600 bpsConfigurable serial communication
Power InputDC 9–40V / PoEStandard and non-standard PoE supported
Operating Temperature−20°C to 85°C5%–95% RH
Product Overview
A practical path for bringing installed serial equipment into modern industrial data networks.
The IOT9031BD links RS422 or RS485 serial equipment to an Ethernet network and provides bidirectional transparent transmission between serial data and network packets.
It supports Modbus protocol conversion and network-based maintenance of connected serial devices, with DIN-rail mounting for control-cabinet installation.
Key Features
Core capabilities selected for reliable integration, flexible deployment and efficient maintenance.
Transparent Data Transmission
Transfers serial data and network packets bidirectionally for connected equipment.
Flexible Network Protocols
Supports UDP, TCP, IP, DHCP, DNS and HTTP as listed by the product source.
DIN-Rail Installation
The compact enclosure is designed for DIN-rail installation in industrial control environments.
Industrial Applications
Explore practical deployment scenarios for this DTECH industrial connectivity product.
Industrial Automation
Connect serial controllers and field equipment to Ethernet-based automation networks.
Data Collection
Network RS422 or RS485 instruments for remote data collection and maintenance.
System / Network Architecture
See how this product fits into an industrial serial communication network.
RS422 or RS485 equipmentIndustrial serial field devices
Serial data
Protected branches
TCP/IP Ethernet networkNetwork packets and serial data transmit bidirectionally
Technical Specifications
Verified configuration details for engineering review and product selection.
Interfaces and Communication
- Model
- IOT9031BD
- Serial interface
- RS422 / RS485
- Ethernet interface
- RJ45
- Baud rate
- 300–921600 bps
- Network protocols
- UDP, TCP, IP, DHCP, DNS, HTTP
- Transmission
- Bidirectional transparent serial-to-network transmission
- Protocol conversion
- Modbus protocol conversion
Power and Environment
- Power input
- DC 9–40V; standard and non-standard PoE
- Operating temperature
- −20°C to 85°C
- Relative humidity
- 5%–95%
- Warranty
- 1 year
Engineering Resources
Use the solution architecture and technical guide to confirm this product's role before final model selection.
Solution
Serial-to-Ethernet Connectivity
Plan the RS422/RS485 field interface, Ethernet transport, power method and host architecture as one documented system.
View Resource Technical GuideHow to Power an RS485 Serial Server with PoE
Verify standards-based or non-standard PoE compatibility, the cable path, serial settings and commissioning steps.
View ResourceRelated Products
Explore complementary DTECH connectivity products for adjacent signal paths and network requirements.
Frequently Asked Questions
Verified answers for product selection and project planning.
Which serial interfaces does the IOT9031BD support?
The verified legacy product page lists RS422 and RS485 serial interfaces.
What baud rate does the IOT9031BD support?
The specified serial baud-rate range is 300 to 921600 bps.
What power input is supported?
The product source lists DC 9–40V input and support for standard and non-standard PoE power.
Need Help Selecting the Right Product?
Share your device interfaces, network environment and project requirements with the DTECH industrial communication team.