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Serial Servers

MS210-W2DB3-D3

2-Port Wall-mount Industrial RS232 Serial Server / Modbus Gateway

Features and Benefits
  • Gigabit Connectivity2 x RS232 serial ports to 1 x 10/100 Mbps electrical port
  • Rugged EnclosureSupports networking of serial terminal devices, with conversion to UDP, TCP, Modbus and other protocols
  • Rugged EnclosureSupports conversion between Modbus RTU/ASCII and Modbus TCP, and Modbus RTU/ASCII over TCP transparent transmission
  • Redundant PowerProvides industrial-grade DC 9~48 V input with overcurrent and short-circuit protection
  • Rugged EnclosureHigh-strength metal enclosure, IP30 protection rating, fanless heat dissipation
  • Wide TemperatureOperating temperature -40℃~+75℃
  • DIP SwitchEMC level complies with Level 4
Overview

The MS210-W2DB3-D3 is a wall-mount industrial serial server / Modbus gateway that provides 1 x 10/100Base-T(X) electrical port and 2 x RS-232 serial ports (DB9).

The MS210-W2DB3-D3 supports Web-based configuration of multiple management functions, such as serial/network working mode, network log, and system management. It supports UDP, TCP Client/Server, Modbus RTU/ASCII and other conversion modes to implement serial-to-Ethernet or Modbus TCP protocol conversion. For core components, the product adopts an industrial-grade design that delivers wide temperature and wide voltage operation, lightning surge resistance, electromagnetic interference immunity, high reliability, high performance and many other advantages that make it suitable for operation in harsh environments. It can be used in industrial monitoring, traffic management, meteorology, water treatment, environmental monitoring, coal mining, petroleum, chemical and new energy industries for remote on-site data acquisition, remote monitoring and on-site control, and is an indispensable industrial communication product for the development of the Industrial Internet of Things.

Technical Parameters
Standards Compliance
Standard IEEE 802.3i (10Base-T)
IEEE 802.3u (100Base-TX)
EIA RS-232
Software Functions
Protocol IP, TCP, UDP, ICMP, SNTP, DHCP, DNS, HTTP, SNMP, Real COM, RFC2217
IP Address Acquisition Static IP / DHCP
Domain Name Resolution Supported
User Configuration Web-based configuration, with optional Chinese/English bilingual switching
Transparent Transmission Modes UDP Client / UDP Server / UDP Multicast / TCP Client / TCP Server
Modbus Modbus RTU/ASCII to Modbus TCP
TCP Server Connections Up to 8 TCP client connections per serial port
Reconnection Supports reconnection with a customizable interval
Security Protection Supports Web access whitelist/blacklist, MAC address binding, and login password protection
Serial Data Packetization Supported
Heartbeat Packet Supports the TCP keepalive mechanism and customizable heartbeat packet content
Registration Packet Customizable registration packet content
Watchdog Supported
Log Service Supports log viewing and export
Management Service Supports configuration file import and export
Average Transmission Delay <10ms
Bundled Software Windows configuration tool, virtual serial port software
Port Performance
Serial Port Serial Port Type: 2 x RS232
Connection: DB9 male connector
Baud Rate: 2400 bps ~ 230400 bps
Data Bits: 8 bit
Stop Bits: 1 bit, 2 bit
Parity: None, Odd, Even
Flow Control: RTS/CTS
Electrical Port 1 x 10/100Base-T(X) auto-negotiating 10/100 Mbps RJ45 electrical port, full/half duplex, MDI/MDI-X auto-sensing
LED Indicators Power LED (PWR), system running LED (SYS), Ethernet link LED (LAN), and 2 serial data transmit/receive LEDs (TXD1/RXD1, TXD2/RXD2)
Button One-key reboot or restore factory defaults button
Mechanical Performance
Mounting Method Wall mounting
Dimensions 97x107x26mm
Enclosure Protection IP30 protection rating, metal enclosure
Electrical Performance
Input Voltage 9~48 VDC wide-range input, compatible with a 2-pin terminal block and a standard power jack with 2.1 mm inner diameter and 5.5 mm outer diameter, center-positive
Power Consumption <3W
Operating Environment
Operating Temperature -40℃~75℃
Storage Temperature -40℃~85℃
Relative Humidity 5%~95% (non-condensing)
Standards and Certifications
EMI FCC CFR47 Part 15B Class A, CE EN55032 Class A
Electrostatic Discharge Immunity (ESD) Compliant with EN 61000-4-2
Radiated RF Electromagnetic Field Immunity (RS) Compliant with EN 61000-4-3
Electrical Fast Transient/Burst Immunity (EFT) Compliant with EN 61000-4-4
Surge Immunity (Surge) Compliant with EN 61000-4-5
Conducted Disturbance Immunity Induced by RF Fields (CS) Compliant with EN 61000-4-6
Power Frequency Magnetic Field Immunity (PFMF) Compliant with EN 61000-4-8
Vibration Test Compliant with IEC 60068-2-6
Shock Test Compliant with IEC 60068-2-27
Free Fall Test Compliant with IEC 60068-2-32
Resources
Name Version Release Date Download
Datasheet for MS210-W2DB3-D3 205.7 KB
V1.0 Nov 10, 2026
Ordering Information
ModelDescription
MS210-W2DB3-D3 Wall-mount industrial serial server / Modbus gateway, 1 x 10/100 Mbps Ethernet port, 2 x RS-232 serial ports (DB9 male connector), DC 9~48 V wide-range power supply, IP30 protection rating.

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