DTG-720-ISIM
Industrial Multi-WAN Auto-Failover Gateway
Ensuring 24/7 uninterrupted connectivity for field devices with triple-layer remote management. Powered by NXP i.MX6ULL, triple-WAN failover engine, and industrial-grade I/O — built for mission-critical deployments.
Key Features
Fast Failover < 15s
Ethernet + built-in 4G LTE, expandable with USB 4G Dongle, auto-switching with configurable Fast / Balanced / Data Saver presets.
Three-Layer Remote Access
Management IP (192.168.99.1) + Vendor frpc + Customer frpc ensures the device is always reachable.
Industrial I/O
2× isolated DI, 2× SSR DO, RS-485/232, CAN Bus for on-site control needs.
VPN Auto-Reconnect
OpenVPN client automatically re-establishes tunnel after failover events.
MQTT Monitoring
Centralized multi-device telemetry with remote commands (reboot, GPIO, VPN).
Web Management UI
9-page dark-theme responsive SPA with real-time dashboard, backup/restore, and service management.
System Architecture
WAN
- eth0 (WAN/Ethernet)
- lte0 (iSIM miniPCIe)
- lte1 (USB 4G Dongle, optional)
DTG-720-ISIM
- Routing Agent
- NAT / DHCP
- VPN / frpc
LAN
- eth1 (LAN/DHCP)
- eth1:1 (Management IP)
I/O
- RS-485 / RS-232
- CAN Bus
- DI × 2 / DO × 2
Hardware Specifications
Failover Performance Comparison
| Preset | Check Interval | Failover Time | Monthly Data (per uplink) |
|---|---|---|---|
| Fast | 3s | ~12s | ~290 MB |
| Balanced | 5s | ~18s | ~174 MB |
| Data Saver | 15s | ~49s | ~58 MB |
With Probe Standby OFF, standby uplinks consume zero data.
Applications
Industrial Remote Monitoring
Factories, substations, water treatment plants.
IP Camera Surveillance
Failsafe connectivity ensures uninterrupted video.
Smart Building
Energy management and building automation.
Vending / POS
Backup network for retail terminals.
Agricultural IoT
Field sensor gateways.
Construction Sites
Rapid network deployment for temporary sites.
Technical Documentation
Need to choose the right gateway for your project?
Contact us for technical support and pricing.