4G IoT M2M Unit(2xDI+2xDO & 1×RS485+1×RS232)
  • 4G IoT
  • IoT M2M Unit
  • M2M Unit
  • Wireless access system
  • IIoT
  • 4G M2M Unit
  • 4G IoT
  • IoT M2M Unit
  • M2M Unit
  • Wireless access system
  • IIoT
  • 4G M2M Unit

4G IoT M2M Unit

No.R40A
4G IoT M2M Unit R40A providing users with wireless network access and I/O. It is widely used in M2M, telemetry, IIoT, transportation, new retail, water conservancy, smart cities, meteorology, firefighting, remote sensing.
I/O & Serial Ports:
2xDI+2xDO & 1×RS485+1×RS232
Communication Protocols:
Modbus RTU/TCP+MQTT+TCP/IP, HTTP/HTTPS, DNS, SSH2+IPSec, OpenVPN, L2TP
Communication Methods:
4G+WIFI+3×LAN+1×WAN (Optional PoE)
Security:
VPN Encryption+Firewall+WiFi Security+ESD/EFT Resistance,Watchdog
Description
The 4G IoT M2M Unit R40A is a cost-effective, high-performance, lightweight industrial-grade edge control terminal that integrates network transmission, data collection, edge computing, logic control, and cloud platform access. With its industrial-grade design and high reliability, it is capable of long-term stable operation in harsh environments, providing a full-stack solution for Industrial Internet of Things (IIoT).



Key Features

● Modbus/MQTT Integration: Supports Modbus RTU/TCP master and MQTT for cloud platforms.
● I/O: 2×DI + 2×DO for device control and monitoring.
● Serial Port: 1×RS485 + 1×RS232 for PLC/legacy equipment communication.
● Edge Logic Control: Local logic execution for real-time decision-making.
● 4G Connectivity: Dual SIM card redundancy with global 4G bands (CAT-1/L-E/L-AU).
● Network Interfaces: 3×10/100Mbps LAN (PoE optional) + 1×WAN port.
● Wireless Access: Dual-mode WiFi (AP/STA), 2.4GHz band, up to 300Mbps.
● Security: IPsec/L2TP/OpenVPN encryption, built-in firewall.
● Industrial Reliability: IP30 rating, -20℃ to +65℃ operating temperature, ESD/EFT Level 3 protection.
● Dual Power Options: Standard 9-36VDC or PoE (48-57VDC).

Typical Application Scenarios

✔Unmanned Data Center/Tunnel Monitoring
✔Meteorological/Hydrological Data Collection
✔ATM/Self-service Vending Machine Networking
✔Bridge/Dam Safety Monitoring
✔Forest Fire Prevention and Early Warning
✔Smart City Terminal Access
✔Power/Energy Remote Monitoring
✔Geological Disaster Monitoring
✔Wireless Backhaul for Mobile Devices

Technical Specifications

Item

Parameters

Description

Power Supply

Input Voltage

Standard: 9~36VDC

PoE Version: 48~57VDC

 

Input Current

Standard Version: Normal: 240mA@12V

PoE Version: Normal: 70mA@48V

 

Reverse Polarity Protection

Support

 

Protection

ESD Level 3, EFT Level 3

System

CPU

MIPS CPU, Clock Speed: 580 MHz

 

Storage

16MB

 

Memory

128MB

Software Parameters

Network Protocols

PPP, PPPoE, TCP, UDP, DHCP, ICMP, NAT, HTTP, HTTPs, DNS, ARP, NTP, SMTP, SSH2, DDNS, SNMP

 

VPN Tunnel

IPsec, OpenVPN, L2TP

 

Firewall

DMZ, DoS Protection, IP Packet, Domain Name andMAC Address Filtering, Port Mapping, Access Control

 

Remote Management

Supports Web-Based Remote Configuration

 

System Log

Support

 

Firmware Upgrade

Supports Serial Local TFTP and Web-Based Software Upgrade

WAN

Quantity

1

 

Specification

RJ45 Port, 10M/100Mbps, Auto-sensing MDI/MDIX

 

Protection

ESD Level 3, EFT Level 3

LAN(PoE)

Quantity

3

 

Specification

RJ45 Port, 10M/100Mbps, Auto-sensing MDI/MDIX

 

PoE(Optional)

Supports 3 PoE Power Output Ports

Compatible with IEEE 802.3at/af Standards

Maximum Output Power per PoE Port: 30W

 

Protection

ESD Level 3, EFT Level 3, Lightning Protection

I/O

RS485

1, Isolation protection, ESD Level 3

 

RS232

1, Isolation protection, ESD Level 3

 

DI

2, Isolation protection, ESD Level 3

 

DO

2, Isolation protection, ESD Level 3

 

Analog Input

4, 12-bit, 0~5V, 0/4~20mA, isolation protection, ESD Level 3

IoT protocols

Modbus Master

Supports Modbus RTU and Modbus TCP master protocols, capable ofcollecting 2000 data points.

 

MQTT

Compatible with AWS IoT Core, Alibaba Cloud, Huawei Cloud, Thingsboard, MQTT private cloud platforms, etc.

Console Interface

Quantity

1

 

Specification

Mini USB

 

Protection

ESD Level 3, EFT Level 3 surge

WiFi

Number of Antenna Ports

1

 

Antenna Port Type

SMA Female

 

Protocol

802.11a/b/g/n(mixed)

 

Mode

AP Mode (Access Point Mode), STA Mode (Station Mode)

 

Frequency Band

2.4G

 

Channel

Channel 1 - 13

 

Security

Open, WPA, WPA2

 

Encryption

AES, TKIP, TKIPAES

 

Number of Connections

16(Max)

 

Speed

300Mbps(Max)

 

Transmission Distance

Outdoors, Unobstructed/Open Area, Coverage Range up to 20 meters

 

SSID Broadcast Switch

Support

Cellular Network

Number of Antenna Ports

1

 

Antenna Port Type

SMA Female

 

4G

Support

SIM Slot

Quantity

2

 

Specification

Drawer-style Interface, Supports 1.8V/3V SIM/UIM Cards (NANO)

 

Protection

Built-in 15KV ESD Protection

Indicator Light

ALARM

Alarm Indicator Light

 

SYS

System Status Indicator Light

 

4G

4G Status Indicator Light

 

WiFi

WiFi Status Indicator Light

Operating Environment

Operating Temperature

-20~+65℃

 

Storage Temperature

-40~+85℃

 

Relative Humidity

5~95%RH(no condensation)

Others

Reset

1 reset button

 

Independent Watchdog

Onboard independent hardware watchdog

 

Enclosure

Aluminum Alloy

 

Dimension

110mmx83mm x43mm(HxLxW)

 

IP rating

IP30

 

Net Weight

500g

 

Installation Method

DIN35 rail mounting, wall mounting

Model Selection

Model SIM Slot WiFi POE RS485/RS232 DI DO AI Function
R40 2 Optional x x x x Only used as router
R40A 2 Optional 1*RS485+1*RS232 2 2 x Supports Modbus master/slave, MQTT, and logic control.
R40B 2 Optional 1*RS485+1*RS232 2 2 4 Supports Modbus master/slave, MQTT, and logic control.

Packaging

  • 1 x Industrial-grade cellular router
  • 1 x DIN35 mounting bracket
  • 1 x Power terminal
  • 1 x I/O interface terminal
  • 1 x WiFi antenna
  • 1 x Cellular antenna
  • 1 x Certificate of conformity
  • 1 x Warranty card
  • 4G IoT
  • IoT M2M Unit
  • M2M Unit
  • Wireless access system
  • IIoT
  • 4G M2M Unit

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