DIN-Rail Industrial 4G LTE VPN Router, 5-Port (1 WAN + 4 LAN)

Industrial 5-port 4G LTE router engineered for critical OT network redundancy. Features automated wired-to-cellular failover, native IPsec/WireGuard VPN tunneling, and 802.11r fast roaming. DIN-rail ready with a rugged -40°C to +85°C operating range.

Part No. VT-LTE400
sku : IoT-IR100
INSTANT QUOTE

DIN-Rail Industrial 4G LTE Router

The OT Network Backbone

A deterministic LTE CAT 1 industrial router engineered for highly efficient, low-latency remote SCADA telemetry. Combines 1×WAN, 4×LAN, and a MediaTek MT76x8 Wi-Fi engine into a single 35mm DIN-rail node, optimizing M2M data bandwidth.

Industrial Router Interfaces

Automated Wired / 4G Failover

When primary wired WAN connectivity drops, internal routing logic instantly shifts data backhaul across to the 4G LTE cellular network. Once physical line linkage is restored, traffic hands back automatically without resetting downstream PLCs.

4G LTE Failover Architecture
Wireless and Wired Network Topology

Industrial WLAN Topologies

Industrial WLAN Topologies: 802.11s Mesh, 802.11r Fast Roaming, and Layer 2 Transparent Bridge

Encrypted Zero-Trust VPN Tunnels

Functioning as an advanced WireGuard cellular router, the VT-LTE400 natively supports modern, lightweight cryptographic routing alongside traditional IPsec and L2TP protocols, ensuring your OT traffic remains completely invisible on the public internet.

Encrypted VPN Tunnels: Encapsulating Modbus Traffic via IPsec, WireGuard, and L2TP
VPN Secure Encrypted Tunnels

Extreme Thermal & Electrical Armor

Passively cooled corrugated aluminum alloy housing. Operates reliably from -40°C to +85°C ambient cabinet temperatures while isolating standard Ethernet data streams from severe VFD ground loops and EMI noise. Designed for immediate control panel integration, it accepts direct 9~24V DC terminal block power.

DIN Rail Installation
Robust Metal Enclosure Design
Hardware Component Architecture

Headless Cabinet Diagnostics

Local Web UI (192.168.8.1) delivers deep RSSI signal inspection. Front-panel LEDs display instant power, 4G dialing, and LAN linkage states, enabling field maintenance without opening a laptop.

Web GUI and LED Diagnostics

Interface Overview & Dimensions

Interface Diagram Front
Interface Diagram Back
Outline Dimensions Schematic

Cellular & Wireless
4G LTE Category & Bands
4G CAT1 (EGSM900, DCS1800, LTE-FDD B1/B3/B5/B7/B8/B20). Coverage: EMEA, SEA, APAC
Transmission Rate
LTE: Max 10Mbps (Downlink) / 5Mbps (Uplink)
Wireless Modes
AP, Client, 802.11s Mesh Networking, 802.11r Fast Roaming
Antenna Interfaces
Standard 50Ω SMA Female (1x Cellular, 1x Wi-Fi)
Hardware Interfaces
Ethernet Ports
4 × 10/100M LAN, 1 × 10/100M WAN
SIM Card Slot
Micro SIM Card (3FF) – 15mm x 12mm (1.8V / 3V)
Dimensions (L x W x H)
37.6 mm × 83.6 mm × 89.2 mm (Native 35mm DIN-Rail mount)
Software & Security
Networking Logic
Wired WAN to LAN/Wi-Fi, 4G to LAN/Wi-Fi, Automated Failover
Advanced Features
Stateful Firewall, VPN (IPsec/WireGuard/L2TP), VLAN Switching, DHCP/DNS, NAT Port Forwarding
Configuration
Local Web GUI (Default: 192.168.8.1)
Power & Environment
Input Voltage
DC 9V ~ 24V (Industrial Terminal Block, V+ / V-)
Operating Temp
-40°C to +85°C
Humidity
0% to 95% (Non-condensing)
Hardware & Enclosure Architecture
  • Native DIN-Rail Integration: Designed with a standard 35mm buckle, no custom mounting brackets needed in crowded control cabinets.
  • Rugged Industrial Build: Extruded aluminum enclosure offers excellent heat dissipation and EMI shielding, operating from -40°C to +85°C.
  • High-Density Edge Processing: A powerful 32-bit industrial CPU ensures zero latency encryption of complex VPN tunnels or routing of dense SCADA telemetry.
Networking & Cyber Security
  • Advanced Wi-Fi Topologies: Beyond standard AP/Client modes, the router natively supports 802.11s Mesh Networking for self-healing facility coverage, and 802.11r Fast Roaming to ensure zero packet loss for moving assets like AGVs.
  • Automated Wired-to-4G Failover: The internal logic is continuously monitoring the WAN link. In the event of a physical internet failure, traffic seamlessly switches to the cellular backup, guaranteeing total SCADA continuity.
  • Enterprise-Grade Cryptography: Reject plain port forwardings. Built-in VPN clients mathematically hide your PLCs from Shodan scanners and public botnets.
Will mounting the VT-LTE400 inside a closed metal control panel affect the 4G and Wi-Fi signals?
Absolutely. A sealed metal control cabinet acts as a Faraday cage, destroying RF signals. The VT-LTE400 utilizes standard 50Ω SMA external antenna interfaces. If you are installing inside a metal box, do not use the standard rubber-duck antennas. Specify our magnetic bulkhead antennas to get the signal safely outside the enclosure.
Is the 4G CAT1 bandwidth sufficient for live CCTV video surveillance?
The VT-LTE400 is meticulously optimized for highly reliable, deterministic IoT telemetry (Modbus TCP, MQTT). While the 10Mbps/5Mbps throughput is massive overkill for PLC polling and SCADA data, continuous multi-channel HD video streaming will bottleneck. For heavy CCTV applications, consult our engineering team for localized fiber or Wi-Fi bridge solutions.
How do I connect legacy PLCs that only have RS485 or RS232 ports to this Ethernet router?
You will deploy one of our Serial-to-Ethernet Gateways alongside the router. The gateway actively translates your legacy serial protocol (Modbus RTU) into Modbus TCP, injecting it into the VT-LTE400’s LAN port to be encrypted and shipped to the cloud.
Will I lose critical telemetry packets during the automatic wired-to-4G failover?
The hardware level switchover takes milliseconds. But there is a small time window where the TCP sockets need to be rebuilt. To achieve mathematically zero data loss, configure your edge SCADA software or MQTT clients with local buffer-and-forward (QoS) logic that perfectly matches the hardware redundancy of your router.
Can I use this router strictly as a local Wi-Fi bridge for my PROFINET PLCs without using a 4G SIM card?
Yes, absolutely. Many of our customers deploy the VT-LTE400 purely for its robust Layer 2 Transparent Bridging (WDS) and 802.11s Mesh capabilities to replace physical Ethernet or festoon cables on the factory floor. The 4G cellular function can simply be disabled or left un-provisioned.
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