RLTK430 3-Port Industrial 4G/LTE VPN Router

The RLTK430 4G WiFi Router is an industrial cellular router designed for reliable communication in locations where fixed internet infrastructure is limited or unavailable. With built-in 4G LTE, it enables PLCs, IP cameras, HMIs, and other IP-based devices to connect to the internet via the mobile network. It can operate both as a Wi-Fi Access Point (AP) and as a Wi-Fi Station (STA), allowing flexible integration into different network topologies and field connectivity scenarios.

Key Features

RLTK430 is designed to provide secure and reliable remote connectivity for industrial field applications. With built-in LTE, multi-VPN support, and flexible Ethernet/Wi-Fi operation, it enables fast deployment and stable remote access to industrial devices.

4G/LTE with Auto-APN & Auto-Reconnect — Quick setup and continuous connectivity.
Multi-VPN (OpenVPN / IPsec / L2TP / GRE / PPTP) — Secure and encrypted remote access.
3× Configurable Ethernet Ports (LAN/WAN) — Flexible network topology support.
Wi-Fi AP & STA Mode — Operate as an access point or connect to existing Wi-Fi networks.
Rugged Design (−20~+70 °C, Metal, DIN-rail) — Built for harsh industrial environments.
Remote Management & Monitoring — Web-based management, firewall/ACL, watchdog support.

Technical Highlights

Compact and rugged 4G/LTE industrial VPN router with 3× configurable Ethernet ports (LAN/WAN) and dual-mode Wi-Fi (AP/STA) for flexible field deployment. Designed for industrial IoT and remote access applications, it delivers fast LTE connectivity with plug-and-play web-based setup. Linux-based firmware ensures flexibility, while surge/ESD protection and a hardware watchdog provide stable 24/7 operation in harsh environments.

Cellular

4G/LTE (3G/2G fallback), 1× SIM, SMA antenna

Ethernet

3× RJ45 Fast Ethernet (LAN/WAN configurable), 10/100 Mbps

Wi-Fi

IEEE 802.11 b/g/n 2.4 GHz, AP and Station modes

Power

9–36 V DC input

Environment

Wide operating temperature range, IP30 metal enclosure, DIN-rail / panel mounting

Security / VPN

OpenVPN, IPsec, L2TP, GRE, PPTP; firewall, ACL, DoS protection

Certifications

CE / FCC (EMC)

Ports & I/O

Overview of the physical interfaces on RLTK430.

SIM slot: Single SIM tray for LTE.
LTE antenna (SMA): External SMA connector.
Ethernet:3× RJ45 Fast Ethernet ports (10/100 Mbps), configurable as LAN or WAN.
Wi-Fi Interface:2.4 GHz Wi-Fi supporting AP and Station modes.
Power input: 9–36 V DC industrial power supply.
System Indicators: LEDs for power, LTE, SIM, and network status monitoring.

Connect It to RoltekConnect Cloud

RLTK430 integrates seamlessly with RoltekConnect Cloud, enabling secure zero-trust remote connectivity for industrial field devices. Role-based and time-restricted access control allows administrators to manage who can connect, when, and what operations are permitted. The platform also supports session auditing, remote device monitoring, configuration management, and firmware updates to simplify maintenance and improve operational security.