Industrial 4G Router Mainboard with 3 Gigabit Ethernet Ports | Model JC3 / JD3 / TD3

The JC3 / JD3 / TD3 is a compact, high-performance industrial-grade 4G router mainboard engineered for embedded and edge-networking applications. Measuring just 11×9 cm, this board is ideal for integration into IoT gateways, smart routers, or industrial automation devices where space and reliability are critical.

Equipped with three Gigabit Ethernet ports, it ensures fast and stable network communication, while the onboard COM port supports legacy serial device connectivity such as PLCs, meters, or RS232-based controllers.

The board features a 24V DC input, allowing for flexible deployment in industrial environments with wide voltage support. Combined with optional 4G LTE module support (via mini-PCIe slot) and secure communication protocols, this board provides seamless mobile network access and remote monitoring capabilities.

Key Features:

• CPU & Chipset: Embedded industrial SoC, optimized for networking

• Network Interfaces:
  – 3 × Gigabit RJ45 LAN Ports
  – Supports network routing, bridging, and firewall functions

• Serial Communication:
  – 1 × COM Port (RS232 support)

• Expansion & Modularity:
  – Supports mini-PCIe 4G LTE module (optional)

• Power Input:
  – 1 × 24V DC (Phoenix Terminal or Molex style)

• Form Factor:
  – Compact 11 × 9 cm PCB

• Industrial-Grade Reliability:
  – Wide voltage tolerance, stable operation under harsh environments

• Application Scenarios:
  – Industrial IoT, smart manufacturing, network gateways, edge computing, remote data acquisition