Bidirectional Data Transfer
Transparent conversion between RS422/RS485 serial data and Ethernet packets.
IOT9031B (2nd)
RS422/RS485 to Ethernet Serial Server
Reliable bidirectional serial-to-Ethernet connectivity for industrial automation and remote device management.
Connect RS422 and RS485 field devices to 10/100M Ethernet networks with flexible TCP and UDP communication modes.
Hover to zoomDTECH IOT9031B RS422 and RS485 to Ethernet serial server on a pure white background
Serial Interface1 x RS422/RS485Removable terminal
Ethernet1 x 10/100M RJ45Full / half duplex
Network ModesTCP / UDPServer and client
Power InputDC 9-40VWide-range input
Operating Temperature-20°C to 85°CIndustrial environment
Product Overview
A practical path for bringing installed serial equipment into modern industrial data networks.
The IOT9031B converts RS422 or RS485 serial data into Ethernet packets and provides bidirectional transparent transmission between field equipment and IP networks.
It supports multiple TCP and UDP operating modes, automatic IP assignment through DHCP, DNS access and 10/100M adaptive Ethernet, helping integrators connect distributed devices without replacing existing serial equipment.
300-921600bps baud rate
Supports a wide range of serial equipment.
10/100Madaptive Ethernet
Compatible with IEEE 802.3 networks.
DC 9-40Vpower input
Flexible power deployment for control cabinets.
-20°C to 85°Coperating range
Designed for demanding industrial environments.
Key Features
Core capabilities selected for reliable integration, flexible deployment and efficient maintenance.
Flexible Network Modes
Supports TCP Server, TCP Client, UDP Server and UDP Client operating modes.
High-Speed Serial Communication
Configurable baud rates from 300 to 921600 bps for diverse field devices.
Wide-Range Power Input
DC 9-40V input supports flexible installation in industrial systems.
Industrial Metal Enclosure
Compact metal housing with status indicators and wall-mounting flanges.
Simplified Network Setup
DHCP, DNS and HTTP support help streamline configuration and access.
Industrial Applications
Explore practical deployment scenarios for this DTECH industrial connectivity product.
Factory Automation
Connect controllers, meters and serial equipment to production monitoring networks.
Access Control
Integrate serial access controllers and readers into centralized management systems.
Energy Monitoring
Collect field data from meters and monitoring instruments over Ethernet.
Intelligent Transportation
Network distributed serial devices used in transport and roadside systems.
System Connection Diagram
Bridge RS422/RS485 field equipment to Ethernet-based monitoring and control systems.
RS422/RS485 Field DevicesPLC, meter, sensor, controller or data acquisition equipment
RS422/RS485
10/100M Ethernet
Monitoring / Control SystemSCADA, server, HMI, PC or central management platform
Technical Specifications
Verified configuration details for engineering review and product selection.
Hardware
- Model
- IOT9031B (2nd)
- Serial ports
- 1
- Serial interface
- RS422 / RS485 removable terminal block
- Ethernet port
- 1 x RJ45
- Power input
- DC 9-40V
- Dimensions
- 93 x 90.5 x 21 mm
- Mounting
- Wall mount
Ethernet
- Speed
- 10/100M adaptive Ethernet
- Duplex
- Full duplex / half duplex adaptive
- Standard
- IEEE 802.3 compatible
- Network protocols
- TCP, IP, UDP, DHCP, DNS, HTTP
- Network buffer
- Transmit: 16 KB; Receive: 16 KB
Serial Communication
- Interface standard
- RS485 / RS422
- Baud rate
- 300-921600 bps
- Data bits
- 7, 8
- Parity
- None, Odd, Even
- Serial buffer
- Transmit: 2 KB; Receive: 2 KB
Network Operation
- Operating modes
- TCP Server, TCP Client, UDP Server, UDP Client
- IP configuration
- Static IP or DHCP
- Domain access
- DNS supported
- Configuration access
- HTTP supported
Environmental
- Operating temperature
- -20°C to 85°C
- Relative humidity
- 5% to 95%
Related Products
Explore complementary DTECH connectivity products for adjacent signal paths and network requirements.
Need Help Selecting the Right Product?
Share your device interfaces, network environment and project requirements with the DTECH industrial communication team.