641M-4 IOT Connectivity 4G- LTE Router



641M-4 IOT - Data Sheet

Data Sheet



The ELPRO 641M-4 IoT Connectivity Router enables your devices to access the Internet of Things (IoT) and Industry 4.0. Delivering a secure, fast, reliable, and simple way to “IoT enable” your devices for remote monitor/control of industrial plant/equipment and environmental applications.

The integrated gateway converts Modbus to MQTT or Sparkplug, using a wide range of interfaces including, Ethernet, RS232, RS485 and discrete inputs/outputs. Providing connectivity and integration solutions across a large range of SCADA and/or cloud based applications.

Using the 4G/LTE CAT4 broadband cellular technology including 4GX, the 641M-4 ensures fast, reliable, and consistent connectivity in mission critical field devices and assets.

For Internet of Things or Industry 4.0 applications the 641M-4 offers a cost-effective fully featured industrial grade router for enabling wide area network connectivity.


Water/Waste Water municipal applications
Oil & Gas and Mining
Embedding in machines for factory automation
Traffic control systems
Extending SCADA radio networks in water and oil and gas systems
Alternative energy systems, such as solar farms and wind turbines
Environmental, flood and disaster management
Video surveillance


Cellular 3G/4G/LTE CAT4 router, including Band 28 support
Compact industrial metal enclosure with DIN rail mounting for easy integration
into machines or electrical cabinets
Dual SIM card support
4 Ethernet, RS232 and RS485 Serial, 2 digital Inputs and 2 digital outputs
Modbus RTU, DNP3, TCP, MQTT, SparkplugB, FTP support
IPSec & OpenVPN Client & Server, L2TP, PPTP
GRE, Port Forward, DMZ
Internal serial server
Wide power supply supporting 9 to 48Vdc input
SMS to read or control inputs/outputs, router status/alarm/state
LAN Fallback for redundant networks and VRRP
Enhanced security for both cyber and data transmission
2 x 10/100M LAN / WAN Ports
Antenna diversity for Cellular bands
Built in GPS with External Antenna Connection


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