The IoT router WR222-WLAN+LTE/NB1 brings serial and wireless LAN data to the cellular network. It supports LTE/NBIoT to wireless LAN redundancy and LTE/WLAN auto offload to optimize network performance. The RS232/422/485 port connects to meters, sensors, or Modbus RTU devices to send data to the remote cloud center over the cellular or WLAN network by Modbus TCP or Secured MQTT (MQTTS). The WR212-WLAN is a smart wireless LAN router for serial devices. To safeguard cybersecurity, security features such as Firewall, OpenVPN, GRE tunnel are supported. The embedded MQTTS and RESTful API enables instant public cloud integration such as AWS or Azure. The private cloud platform ThingsMaster and ThingsMaster OTA can also be set up for an instant and secured access to receive data or manage devices remotely.
Related Downloads Inquiry cart

Dual Radio NBIoT + Wi-Fi Wireless Network

NBIoT + M1
    LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/
    LTE TDD: B39 (For Cat M1 Only)
・IEEE 802.11b/g/n for 2.4G 2T2R MIMO delivers up to
    300Mbps throughput


Serial Communication & High Throughput Data Switching
・RS232/422/485 full functions for serial over LTE/NBIoT/WiFi/Ethernet data switching
・2 port Ethernet supports routing and bridging mode

・Modbus RTU to Modbus TCP Conversion
・Modbus Log to collect sensor data
・Modbus Write Single Coil, Register to configure sensor parameters
・Connect up to 25 sensors in one RS485 chain
・DLMS/COSEM protocol to connect power meters


Enhanced Cyber Security & Redundancy

・Firewall for inbound/outbound traffic
・OpenVPN (server/client)
・L2TP with PPP, PAP, CHAP(LCP, IPCP), GRE tunnel
・HTTPs/SSH secure login
・MQTTS with TLS encryption and X.509 authentication
・TACACS+ multi-user authentication for privileged user management

Industrial IoT LAN & Cloud Management
・Various configuration paths, including CGI WebGUI, 
     CLI, SNMP and RMON*
・1:1 NAT, port forwarding and NAPT for local traffic
・ARP response over 802.2 LLC SNAP
・Support SNMPv3 and entity-MIB (RFC4133), MIB II
・NTP v3 time management
・WoMaster Software Utilities
    -NetMaster: Network Management System with VLAN visualization* and ERPS* Ring
    -ViewMaster: Configuration Management
    -ThingMaster: Interactive monitoring dashboard by Modbus Tag to collect data from Modbus devices
    -ThingMaster OTA: Realtime map showing the status, signal strength, location of the remote devices, over-the-air batch device registration, configuration and firmware upgrade*, alerts on critical events to prevent downtime
・Support MQTTS protocol, ready to use AWS/Azure and Private Cloud Agent for cloud management
・LLDP* for topology control, auto-topology drawing
・USB for easy field configuration and firmware update
・ Diagnostic tool includes Ping, TFTP, SNMP Trap, E-mail Alert and System Log


Rugged Design for Wayside Surveillance, ITS Application

・Effective heat dissipation design for operating in -40~70oC environments

・CE Marking

・IEC61000-6-2/IEC61000-6-4 heavy industrial EMC compliance

Standard 3GPP Release 11 Long Term Evolution (LTE), fallback 3GPP Release 7,8,9 for HSPA/UMTS

IEEE 802.11b/g/n for Wireless LAN

IEEE 802.11i for Wireless Security

IEEE 802.3 10Base-T Ethernet

IEEE 802.3u 100Base-TX Fast Ethernet

Ethernet Port

2 x 10/100Base-TX RJ45, Auto Negotiation, Auto MDI/MDI-X
Router Mode: 1 WAN + 1 LAN, Bridge Mode: 2 LAN

System LED 1 x Power: Green ON
1 x SYS: Ready: Green On, Firmware Updating: Green Blinking
1 x Ra: 4G connection: Green On, 2/3G connection: Green Blinking, disconnected: Off
1 x Rb: AP mode: Green On, Station mode connected: Green Blinking, Station mode/radio disable: Off
1 x Serial Port: Activity: Green Blinking

System Reset(2~6 Seconds) / Default Settings Reset(over 7 Seconds)

SMA Socket

Up to 4 x RP-SMA Female (without Nylok)

ANT1/3 for Wi-Fi 2T2R, ANT2/4 for LTE 2T2R (Main/Div)

SIM Socket

1x Nano SIM

Micro SD

1x for field diagnostic data logging

Power Input

6-Pin Removable Terminal Block Connector

  2 Pin for Power (V+,V-)

  2 Pins for DI with isolation

     High: DC 2~30V

     Low: DC 0~1V

   2 Pins for 1x DO: 0.1A/30V with isolation


1x RS232/422/485, DB9 Female

 Cellular Properties (NBIoT+CAT M1)

EGPRS 3GPP Release 6

LTE 3GPP Release 13

Data Rate

Cat M1: Max. 375Kbps (DL), Max. 375Kbps (UL)
Cat NB1: Max. 32Kbps (DL), Max. 70Kbps (UL)
EDGE: Max. 296Kbps (DL), Max. 236.8Kbps (UL)
GPRS: Max. 107Kbps (DL), Max. 85.6Kbps (UL) 

Band Information

Cat M1/Cat NB1:
LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28
LTE TDD: B39 (For Cat M1 Only)

 WiFi Properties

IEEE 802.11b/g/n,  Up to 2T2R MIMO

Data Rate

802.11b: 11Mbps / 802.11g: 54Mbps / 802.11n: MCS0 ~ 15, max. 300Mbps


ISM Band, 2.412GHz ~ 2.462GHz (CH1~11), programmable by regional regulation


≦20db, compliant with CE request

Management Interface CGI WebGUI, Command Line Interface (CLI), IPv4/IPv6*, Telnet, SNMP v1/v2c/v3, DDNS, DHCP server/client, DHCP Relay, TFTP, FTP(active/passive), System Log, SMTP, ARP response over 802.2 LLC SNAP, Proxy ARP, DNS (client/proxy), PPPOE*

Traffic Management

Flow Control*, Traffic shaping
User Management

Radius client, TACACS+, local database

Time Management

NTPv3, SNTP, Cellular Time

IoT Industrial Protocol

Serial to MQTT Conversion, Modbus RTU to MQTT Conversion, Modbus RTU to TCP Conversion, MQTTS, CoAP, RESTful API

Meter Protocol DLMS/COSEM*
Network Management

IPv4, SNMP v1/v2c/v3/Trap, MIB II, Entity MIB, DHCP server/client, DHCP relay, TFTP, ARP response over 802.2 LLC SNAP, Proxy ARP, DNS (client/proxy), private MIB

Traffic Management

1:1 NAT, NAPT(SNAT/DNAT), Port Forwarding

Redundancy Protocol

WAN/LTE Redundancy


  Routing: Static Route
  NAT: 1-1 NAT, NAPT(SNAT/DNAT) ), Port Forwarding, DMZ
  Firewall: Stateful Inspection firewall, IP/Port Filter, MAC ACL
  VPN: OpenVPN,  L2TP, GRE


IEEE 802.1X/RADIUS, TLS v1.2, HTTPs/SSH, First login password management
WLAN AP Security: Share Key, WPA/WPA2-PSK(Pre-Shared Key), WPA/WPA2 Enterprise
Encryption: 64/128-bit WEP(Wired Equivalent Privacy), TKIP(WPA-PSK), AES(WPA2-PSK), ), MAC Filter

Serial Communication

TCP Server/TCP Client/UDP mode, TCP Alive check, Force TX Delimiter/Timeout/interval/length, Long Distance Termination


OpenVPN (server/client), L2TP, GRE

Private Cloud

ThingsMaster, ThingMaster OTA

Public Cloud

AWS Agent, Azure Agent


Google map, Baidu map

Cellular Configuration

Radio on/off, 2G, 3G and 4G modes configurable, SIM Security, Connection Status, Cellular to Eth-WAN Redundancy, Backup SIM Retry (1-10 times)

WLAN Configuration

WLAN Basic Settings: Radio on/off, AP/client mode, 2.4G 11n Band and Frequency selection, SSID/Multi-SSID configuration, SSID broadcast, Cellular to WLAN Auto Offload and advanced WLAN settings, 802.1X


ViewMaster, NetMaster, Ping, Traceroute


MIB-II, Entity MIB, WoMaster Private MIB

Wi-Fi Max. Client

Up to 20

 Power Requirement
Input Voltage

24V (9~30VDC)

Reverse Polarity Protect Yes
Input Current

WR224-WLAN+LTE: 0.18A@24V

Power Consumption

WR224-WLAN+LTE: Max 4.32W@24VDC full traffic, suggest to reserve 15% tolerance


Wall Mount/DIN Rail (DIN bracket not included)

Enclosure Material Steel Metal 

86 x 105 x 29mm(W x D x H) / without mounting Clip

Ingress Protection IP30

Around 350g without package/antenna

Operating Temperature & Humidity -40°C~70°C , 5%~95% Non-Condensing
Storage Temperature -40°C~85°C
MTBF >200,000 hours
Warranty 3 years
Safety EN60950-1 Compliance
EMC EN61000-6-2/EN61000-6-4
EMI CISPR 22, FCC part 15B Class A

EN61000-4-2 ESD, EN61000-4-3 RS, EN61000-4-4 EFT, EN61000-4-5, EN61000-4-6 CS,

EN61000-4-8 Magnetic Field 


RED Compliance

Safety: EN 62368-1

EN 50385/EN62311 MPE assessment

EN 301 489-1/17/19, EN 55032/55024

EN 300 328

EN 301 908-1

FCC Part 15B

Ordering Information
 Model Name


Industrial Wireless IIoT Field Router, 2FE+1COM, SD, 802.11b/g/n WLAN (antennas included)


Industrial Wireless IIoT Field Router, 2FE+1COM, SD, 802.11b/g/n WLAN, NB1+M1, 1SIM, FDD B1-5/8/12/13/18/19/20/26/28, TDD B39 (antennas included)

Package List
1 x Product Unit 
1 x 2-pin Removable Terminal Block Connector 
1 x Quick Installation Guide

WR212-WLAN: 2 x Wi-Fi Antennas, White

WR222-WLAN+NB1+M1: 2 x NBIoT Antennas, Black +  2 x Wi-Fi Antennas, White




  • Built-in Microsoft Azure and Amazon AWS agent
  • ​Secure IoT Modbus Tags
Tag-based data acquisition with MQTT support
MQTT client acting as publisher and subscriber
The latest TLS encryption and X.509 authentication
Selectable serial port and data type. Sensor alive check and display sensor value
  • Multi-Level User Passwords
Different centralized authentication servers are supported such as RADIUS and TACACS+. Using a central authentication server simplifies account administration when you have more than one switches in the network.
Authentication Chain is also supported. An authentication chain is an ordered list of authentication methods to handle more advanced authentication scenarios. For example, you can create an authentication chain which first contacts a RADIUS server, and then looks in a local database if the RADIUS server does not respond.

  • Secured Remote Access by VPN
WR222 can act as a VPN server for data encryption and dynamic remote access. Multiple VPN protocols are supported such as OpenVPN, GRE, and L2TP.  The channels between multiple networks, ex. private/public/hybrid networks are fully secured and with authentication features.


MQTT relies on the TCP transport protocol. By default, TCP connections do not use encrypted communication. To encrypt the whole MQTT communication, ThingsMaster and other MQTT brokers allow the use of TLS instead of plain TCP. In the mission-critical industrial application, encryption is mandatory and highly suggested for industrial communication.

The MQTTS is standardized at IANA as “secure-mqtt”. All WoMaster Routers and Switches support the latest TLSv1.2 encryption and X.509 authentication.

  • ThingsMaster OTA (device management over the air) 
The OTA agent embedded in WR222 upgrades device management over the air, anywhere you are and any time you want over your mobile devices.  ThingsMaster OTA is a secured local OTA software that can be installed in private or public service or even QNAP NAS (network-attached storage). With OTA, all device information such as location, warning event can be shown in real-time.  The maintenance such as configuration reload or device reboot can also be run by the group.
OTA Device Management