Mport3101-W, WiFi Serial Device Server
  • 1×RS232/485/422 serial port, 1×100Mbps Ethernet copper port
  • Wall Mounted Wi-Fi Serial Device Server with Modbus Functions
Features and Benefits
  • Support serial port to wireless Wi-Fi/wired Ethernet
  • Support serial terminal device networking, can convert UDP, TCP, Modbus, HTTPD, WebSocket, MQTT protocols, and support virtual serial ports
  • Support conversion between Modbus RTU/ASCII and Modbus TCP protocols, and support Modbus RTU/ASCII Over TCP transparent transmission
  • Support wireless modes of AP, Client, or AP+Client, which can serve as Wi-Fi hotspots, wireless clients, or bridges, to achieve wired and wireless network conversion
  • Industrial grade DC9-36V power supply and anti reverse connection protection
  • High strength metal shell, IP40 protection, fanless shell heat dissipation,
  • -40°C to +85°C working temperature
  • Overview
  • Specifications
  • Downloads
  • Models
Product Description

Unlock remote access and seamless management of your industrial serial devices with the Maiwe Mport3101-W WiFi serial device server.


Wireless Connectivity, Enhanced Control

The Mport3101-W enables remote access and management of industrial serial devices over a WiFi or wired network. Compatible with the free Maiwe Serial Device Management Software (MWVirtualCom), it provides a range of control options to suit your needs.


Flexible Installation, Reliable Performance

Say goodbye to the hassle of laying additional Ethernet cables. The Mport3101-W allows you to connect your RS232/422/485 serial device in locations where wired network connections are unavailable. With support for 802.11 B/G/N WiFi connections and a 10/100Mbps wired network port, it offers unmatched flexibility.


Industrial-Grade Design

Built to thrive in industrial environments, this device server accepts wide-range 9-36V DC power input via a DC jack. It supports baud rates up to 230.4Kbps, ensuring a smooth and stable connection to your serial devices.


Secure Communication, Versatile Configuration

The Mport3101-W offers support for HTTPS, SSH and SSL, ensuring secure communication. It integrates remote Telnet configuration and supports IP, HTTP, ICMP, DHCP, TCP, and UDP protocols. Customize the device server to suit your application with versatile browser-based or virtual com port software configuration.


Robust Protection, Durable Design

This serial device server features 15KV air and 6KV contact ESD protection, safeguarding it against electrostatic discharge. Its high-strength metal shell and IP-40 case design make it wall-mountable, ensuring performance in harsh environments.


Explore Connectivity Possibilities

Transform your industrial operations with the Maiwe Mport3101-W WiFi serial device server. Explore its capabilities in converting serial to IP, providing Ethernet serial connectivity, and enabling remote access to your serial devices. It can be used in industrial monitoring, traffic management, meteorology, water treatment, environmental monitoring, coal mining, petroleum, chemical, new energy and other industries, for remote on-site data collection, remote monitoring, on-site control, etc

Features and Benefits
  1. Support WAN/LAN multiplexing, connecting to external networks through DHCP, static addresses, PPPoE, or connecting to internal networks as a LAN port
  2. The LAN supports DHCP servers and centrally manages and configures user IP addresses dynamically
  3. The WLAN supports AP, Client or AP+Client modes, enabling wireless terminal access, wireless network access or bridging
  4. Support UDP/UDP Multicast mode, enabling fast and efficient point-to-point, point-to-multipoint, or multipoint-to-multipoint communication through UDP protocol l
  5. Support TCP Client/Server mode, establishing session connections through TCP protocol. TCP Client supports up to 16 session connections, TCP Server supports up to 32 session connections, and supports RFC2217 instructions to dynamically modify communication parameters such as serial port baud rate
  6. Support Pair Connection Master/Slave mode, allowing devices to be used in pairs with simple operation
  7. Support Modbus RTU/ASCII Master/Slave mode, enabling conversion between Modbus TCP and Modbus RTU/ASCII protocols
  8. Support Modbus slave pre-reading, single port automatic learning up to 256 RTU or 128 ASCII instructions, achieving fast response
  9. Support RealCOM_ MCP/CCP/MW mode, mapping network to local COM, seamless connection
  10. Support HTTPD Client mode and can perform GET or POST operations with HTTPD servers
  11. Support WebSocket Client mode and can communicate bi-directional with WebSocket servers
  12. Support MQTT mode, which can connect to Alibaba Cloud, OneNet (multi protocol), OneNet (Internet of Things suite), Tencent Cloud, Huawei Cloud, Maiwe Cloud or other cloud platforms to achieve the interconnection of everything between the end and the cloud
  13. Support various subcontracting mechanisms to convert serial port data into Ethernet packets based on data length or time, meeting real-time requirements of different networks
  14. Support registration and heartbeat packets, enabling connection verification and connection status detection
  15. Support Modbus virtual IDs, mapping Modbus slave real IDs to virtual IDs for data communication, avoiding duplicate slave IDs
  16. Support JSON function, which can convert collected Modbus slave device data into JSON format and send it to the server
  17. Support various data encryption algorithms such as DES/3DES/AES/RC2/RC4/BlowFish, to ensure data security
  18. Support SSL (TLS1.0/1.1/1.2) connection encryption, one-way/two-way certificate verification, ensuring connection security
  19. Supports IPv4/IPv6 Ping, IPv4/IPv6 Traceroute, Nslookup, packet capture, and can perform network diagnosis or fault analysis
  20. Support port forwarding, IP/MAC/domain name address filtering and UPnP functions
  21. Support SNMPv1/v2c, enabling information querying, modification, and troubleshooting through MIB, achieving centralized management
  22. Support login events, configuration changes, password changes alarms, support email and SNMP alarm methods


Network Protocol


IP Obtaining Method

DHCP/Static IP/PPPoE Dialing

Domain Name Resolution


User Configuration

Web configuration

Simple Transparent Transmission

UDP/ UDP Multicast/ TCP Client/ TCP Server/ RealCOM/ Pair Connection


Modbus RTU/ASCII to Modbus TCP

Serial Packaging Mechanism

The time and length can be set. Maximum packaging length 1460 bytes

TCP Server Connection

Single serial port supports up to 32 TCP client connections

Network Cache

Send: 16Kbyte; Received: 64Kbyte

Serial Cache

Send: 4Kbyte; Received: 4Kbyte

Heartbeat Package

Support TCP Keepalive mechanism and customize heartbeat packet content

Registration Package

Custom registration package content



Httpd Client






Support working modes such as Maiwe, Moxa and Kanghai

Average Transmission Delay



Virtual serial port software

Log Functions

Support storage system, program running logs and log export functions

Wi-Fi RF Parameters

Wireless Standards

2.4GHz 802.11b/g/n

Frequency Range


Band Bandwidth


Maximum Transmission Power

IEEE 802.11n:15~18dBm @HT20/40 MCS7

IEEE 802.11g:15~18dBm @54MHz

IEEE 802.11b:17~19dBm @11MHz

Receiving Sensitivity

HT40 MCS7:-69dBm@10% PER(MCS7)

HT20 MCS7:-71dBm@10% PER(MCS7)

54M:-76dBm@10% PER

11M:-90dBm@ 8% PER


100M Copper Port

1x10/100Base-T(X) auto-sensing RJ45ports, support full/half duplex, auto MDI/MDI-X

Serial Port

Serial port type: 1 RS232/485/422

Connection method: 3.81mm pitch 5-pin terminal block for RS485/422,  DB9M for RS232

Baud rate: 300bps~230400bps

Data bits: 5bit, 6bit, 7bit, 8bit

Stop bit: 1 bit, 2 bit

Check bits: None, Odd, Even

Antenna Interface

1x2.4GHz antenna interface, using SMA-K (external thread internal hole)


One-click restart or factory reset

Indicator LED

Power indicator,

Operation indicator,

Ethernet interface speed and connection/activity status indicator

Serial port sending and receiving data indicator

Power Supply

Input Voltage


Power Consumption



Φ 2.5mm DC round head

Physical Characteristics


96×90×26 mm(mounting brackets included)


Wall mount

IP Code


Working Environment

Operating Temp


Storage Temp


Relative Humidity

5%~95% (non-condensing)

Industry Standard


IEC 61000-4-2 (ESD): Level 3 (Contact discharge:±6kV, Air discharge: ±15kV)

IEC 61000-4-5 (Surge): Level 4 (Power supply: common mode:±4kV, differential mode:±2kV)

RS485/422: common mode ±4kV, differential mode:±2kV

Ethernet port: common mode ±6kV, differential mode:±2kV)

IEC 61000-4-4 (EFT): Level 4 (Power supply:± 4kV

Data port: ± 2kV)






MPort3101-W User Manual

Version 1.1

Mport3101-W Datasheet


Standard Model

100M Copper Port


2.4GHz Antenna

Input Voltage







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