HUNSN RJ03 Micro Firewall Appliance User Manual

Introduction

This manual provides detailed instructions for the setup, operation, and maintenance of your HUNSN RJ03 Micro Firewall Appliance. The RJ03 is a compact, fanless mini PC designed for network security applications, including use as a firewall, VPN router, or other network appliance. It features an Intel Celeron N5105 processor and multiple 2.5GbE LAN ports.

Please read this manual thoroughly before using the device to ensure proper installation and optimal performance.

Safety Information

• Ensure the device is placed on a stable, flat surface with adequate ventilation.
• Use only the provided power supply. Using an incorrect power supply may damage the device and void the warranty.
• Do not expose the device to water, moisture, or extreme temperatures.
• Avoid opening the chassis unless performing authorized upgrades (RAM, SSD/HDD, WiFi module). Disconnecting internal components improperly can cause damage.
• In case of malfunction, disconnect the power supply and contact support. Do not attempt repairs yourself.

Package Contents

Verify that all items are present in the package:

• HUNSN RJ03 Firewall Appliance
• Power Supply (DC12V3A)
• Power Cord
• Warranty Card

Product Overview

The HUNSN RJ03 is a compact, fanless mini PC designed for robust network applications. Its aluminum chassis acts as a heatsink, ensuring silent operation.

Front Panel

Figure 1: Front Panel Layout

The front panel provides essential user interfaces:

• Power ON/OFF Button: Used to power the device on or off.
• CLR CMOS Button: A small button to clear CMOS settings, often requiring a pin to press.
• USB 3.0 Ports (2x): For connecting high-speed USB devices.
• Type-C Port: Supports display output and USB connectivity.
• TF Card Slot: For TransFlash (MicroSD) memory cards.
• Antenna Connectors (2x): For optional WiFi antennas.

Rear Panel

Figure 2: Rear Panel Layout

The rear panel houses the primary connectivity options:

• USB 2.0 Ports (2x): For connecting standard USB devices.
• HDMI Port: For connecting to a display.
• DisplayPort (DP): For connecting to a display.
• LAN Ports (4x 2.5GbE I226-V): Four 2.5 Gigabit Ethernet ports for network connections (ETH0, ETH1, ETH2, ETH3).
• DC_IN Port: For connecting the 12V power adapter.

Setup Instructions

1. Hardware Installation (Optional)

If you purchased a barebones unit or wish to upgrade, follow these steps to install RAM, SSD/HDD, or a WiFi module. Ensure the device is powered off and disconnected from the power source before proceeding.

1. Open the Chassis: Carefully remove the screws securing the bottom panel of the appliance.
2. Install RAM: The device supports 2 x SODIMM DDR4 2933MHz, up to 32GB. Insert the RAM modules into the SODIMM slots, ensuring they are seated correctly and the clips lock them in place.
3. Install Storage:
   • M.2 NVMe SSD: Insert the M.2 2280 PCIe 3.0 x1 NVMe SSD into its dedicated slot and secure it with the provided screw.
   • 2.5 Inch SATA SSD/HDD: Connect a 2.5-inch SATA SSD or HDD using the internal SATA data and power cables (if included). Secure the drive within the chassis.
4. Install M.2 WiFi Module (Optional): If installing a WiFi 6 module, insert it into the M.2 WiFi slot and connect the antenna cables.
5. Close the Chassis: Replace the bottom panel and secure it with the screws.

2. Connecting Peripherals

1. Power Connection: Connect the provided power adapter to the DC_IN port on the rear panel, then plug the power cord into an electrical outlet.
2. Network Connection: Connect your network cables to the 2.5GbE LAN ports (ETH0-ETH3) as required for your network configuration (e.g., WAN, LAN, DMZ).
3. Display and Input (Optional): For initial setup or direct interaction, connect a monitor via HDMI or DisplayPort, and a keyboard/mouse to the USB ports.

3. Initial Boot

Press the Power ON/OFF button on the front panel. The device should power on. If a display is connected, you will see the boot sequence.

Operating System Installation

The HUNSN RJ03 supports a variety of operating systems and network appliance software. It supports UEFI boot only.

• Compatible Systems: 5.10.x and above core-based FreeBSD router systems, Linux distributions, or Windows operating systems.
• Firewall Software: Compatible with popular open-source solutions such as pfSense and OPNsense.
• Installation Process:
  1. Prepare a bootable USB drive with your chosen operating system or firewall software.
  2. Connect the USB drive to a USB port on the RJ03.
  3. Power on the device and enter the BIOS/UEFI setup (usually by pressing DEL or F2 during boot) to configure the boot order, prioritizing the USB drive.
  4. Follow the on-screen instructions to install the operating system.
• Network Driver Considerations: The Intel I226-V 2.5GbE LAN ports may require specific drivers or a newer kernel version for optimal performance, especially with certain older operating systems or firewall distributions (e.g., older pfSense versions). Ensure your chosen OS version supports these NICs or be prepared to install necessary drivers.

Operation

Once the operating system is installed and configured, the HUNSN RJ03 functions as a reliable network appliance. Specific operation details will depend on the software installed (e.g., OPNsense, pfSense).

• Power Management: The device supports hardware auto power-on (enabled by default), network wake-up (Wake-on-LAN), and system power management features. These can typically be configured in the BIOS/UEFI settings.
• Fanless Design: The fanless design ensures silent operation (0.00dB noise). The aluminum chassis acts as a large heatsink, dissipating heat efficiently.
• Temperature Management: The device is designed to operate within a temperature range of 0°C to 70°C. While the chassis may feel warm to the touch, this is normal for fanless systems and indicates effective heat dissipation.

Maintenance

• Cleaning: Periodically clean the exterior of the device with a soft, dry cloth. Do not use liquid cleaners or aerosols. Ensure ventilation fins are free from dust accumulation to maintain optimal cooling.
• Cooling: Although fanless, ensure the device has adequate airflow around its chassis. Avoid placing it in enclosed spaces without ventilation. If operating in consistently high ambient temperatures or under heavy load, consider adding an external USB fan for additional cooling, especially if system temperatures are a concern.
• Firmware Updates: Check the HUNSN support website or contact customer service for any available BIOS/UEFI firmware updates, which may improve compatibility or performance.

Troubleshooting

Specifications

Warranty and Support

Your HUNSN RJ03 appliance comes with a warranty. Please refer to the included warranty card for specific terms and conditions. For technical support, troubleshooting assistance, or inquiries regarding parts and upgrades, please contact HUNSN customer service through the retailer where you purchased the product or visit the official HUNSN store online.

For additional resources and product information, you may visit the HUNSN Store on Amazon.