Industrial Multifunction VPN Router Managed Ethernet switch w/up to 2 LTE 4G + 2 serial ports + 4 Gigabit Ethernet + 2 dual speed SFP w/ Load Balancing**, VPN, Storage**; 24V/HV input

  • Up to 2 concurrent mobility for 3G/4G LTE Link&GPS(2L model/4 SIMs)
  • Built-in 4 Gigabit Ethernet managed switch
  • Federal Information Processing Standards (FIPS)-compliance**
  • Managed Switch functions cover port management, QOS, VLAN, multicast, redundant ring and security function
  • VPN router for Multi-site VPN, OpenVPN, L2TP over IPsec, IPsec, PPTP**, L2 over GRE , IPGRE
  • Load Balancing** support 8 mechanism
  • Optional EMMC Flash storage on-board**
  • Support NAT and Firewall
  • Support 2 RS422/485 ports with 2.5KV isolation or 2 RS232 ports
  • Dual isolated Input voltage 9~60VDC (24V model); Single isolated input power 90~305VAC/120~430VDC (HV model)
  • Ignition sensing on 24V model
  • Vehicle E-marking* certificate
  • Environmental monitoring for router inside info with voltage, current, temperature ; LTE graphic signal strength
  • Editable login page of captive portal for hot-spot application
  • Dual image firmware



Lantech IMR-3204DF series is a next generation industrial multi-function VPN router w/up to 2x LTE modem + 4x Gigabit Ethernet ports including 2 dual speed SFP+ 2 serial ports that supports advanced function of VPN, Load-balancing**(Basic & Full package), EMMC Flash Storage**, Protocol gateway(Modbus), and LTE quad SIM fail-over for industrial applications. The dual core CPU with 1.6GHz + 256M flash enables the router to multi-task smoothly.

Dual concurrent LTE design 4G/3G for load-balancing
With dual LTE module design (2L model), 4 SIM card slots, IMR-3204DF can allow auto-swap, failover & failback between multiple service providers for real non-stop connection. With concurrent LTE modules, it can also allocate bandwidth by Load Balancing** with 8 schemes between multiple WANs. With one mobile LTE module (1L model), 2 SIM card slots, IMR-3204DF provides redundant link between two service providers. Both GPS and Russian GLONASS systems are supported.

Optional EMMC Flash storage**
The optional EMMC flash storage on router can offer 8G/16G/32G capacity.

Load Balancing** with 8 mechanisms for multi-WANs (premium license)
IMR-3204DF supports Load Balancing** for LTE/WAN connections. There are eight schemes for Load Balancing** function:

Pack Algorithm Description
Standard Fixed Manually route by traffic type through fixed WAN link.
Basic Package Failover Routes connections through preferred WAN link while others stand-by. Sequentially activate another link if preferred link fail occurs. Once failover will not failback until link loss.
Priority Routes connections through preferred WAN link as primary while others follow by. Ex. Wi-Fi  client>LTE>others
Weighted Round-Robin Evenly distribute the traffic over all working WAN links in circular order according to the specified weights.
Custom Route Routing through the selected WAN for each specific traffic, ex: TCP/UDP port number and IP address.
Full Package (incl. basic package) Sticky Session* Binding all connections in an application session to particular WAN link to ensure all connections in the session are routed to the same WAN link , that is suitable for security services like online payment etc.
Smallest Load* Routes connections through the WAN link with highest free bandwidth ratio.
The ratio = 1 – (traffic load / the capability of a WAN link).
The traffic load could be defined by downstream, upstream or total traffic
Fastest* Routes connections through the WAN link with lowest latency time.

2 port serial connection
It builds in 2 port serial connection for RS232, RS422, 485 in which RS422/485 has 2.5KV isolation protection.

Managed switch Function
W/ port managed functions, QOS, VLAN, Multicast, Redundant protection, security

VPN and firewall
Besides traditional VPN peer to peer tunneling, IMR-3204DF support latest Multi-Site VPN function that is an efficient way for mesh tunneling. The registration is under cloud service and encrypted by SSH makes the connection easy and safe. It supports Multi-Site VPN, OpenVPN, L2TP over IPsec, IPsec, PPTP**, L2 over GRE , IPGRE, and NAT for various VPN applications. The built-in Layer-4 firewall includes DDoS, IP address filter / Mac address filter / TCP/UDP port number.

DIDO for alarm & email notice; Event log; Remote Web/SMS** control
2 sets of DIDO function can support additional high/low physical contact for designate applications besides Port / Power events, for example, DIDO function can trigger alarm if the router was moved or stolen. In case of events, the IMR-3204DF will immediately send email and trap. When the router is at remote area with limited access, Web/SMS** control can help to get router status or remotely reboot by Web/SMS**.

24V/HV isolated input voltage selection: dual 9V-60VDC (24V model) or single 90~305VAC/120~430VDC (HV model)
The IMR-3204DF is able to work from 9VDC to 60VDC (24V model). Or with single high power supply at 90~305VAC / 120~430VDC (HV model).

Environmental monitoring for inside router info& alerting; Graphic LTE signal strength
The built-in environmental monitoring can detect router ambient temperature, voltage, current where can send the syslog, email** and SMS** alert when abnormal.

Ignition Sensing
Ignition sense allows you to delay power off the router with a designated time delay.

Built-in Managed Switch Function
Managed switch function is built-in and provides various L2+ functions for network access deployment. It delivers ports and PoE management, VLAN, QoS, multicast, redundant ring, and security functions.

Dual image firmware
It supports dual-image firmware to choose which one to start.

Ruggedized industrial design and FCC*,CE*& E-marking** certificate
The IMR-3204DF is designed to meet with industrial network environment with IP 30 housing. It passed serious tests under extensive Industrial EMI and environmental vibration and shocks standards. With CE & FCC radio certification for LTE and E-marking certificate, the IMR-3204DF is best for outdoor community, vehicle, process control automation etc application. For more usage flexibilities, IMR-3204DF supports wide operating temperature from -20°C to 75°C & -40°C to 75°C (-E model)

*Future Release