HLK-RM65 Gigabit WiFi6 AX3000 Routing Module User Manual

1. Introduction

The HLK-RM65 is a high-performance embedded WIFI6 AX3000 module developed by Hi-Link Electronics Co.,Ltd. This highly integrated system-on-chip wireless network router module utilizes the MT7981B+MT7976C+MT7531A solution, offering a theoretical maximum wireless rate of 574Mbps+2402Mbps. It is designed for applications requiring high wireless performance, such as home entertainment and home automation.

The System-on-Chip (SOCs) components are manufactured using advanced silicon processes and integrate a dual-core ARM®Cortex-A53MPCoreTM, operating at frequencies up to 1.3GHz, providing enhanced DRAM bandwidth. The module includes a variety of peripherals, such as SGMII and USB3.0 (host) ports, and two 2.5Gbps HSGMII Ethernet interfaces. The MT7981B, in conjunction with the RF chip, delivers a dual-band concurrent chipset solution suitable for WIFI6 AX3000 wireless router platforms.

2. Product Features

• Dual-band (2.4GHz and 5GHz) MIMO 802.11a/b/g/n/ac/ax RF with bandwidth options of 20/40/80/160MHz.
• Flash/DDR3 support for DDR3, DDR4-2133 2GB, or 4GB.
• Bandwidth range: 2.4-2.4835GHz and 5.180-5.885GHz.
• Integrated 2.4GHz/5GHz Power Amplifier (PA) and Low Noise Amplifier (LNA).
• Wireless connection via I-pex generation seat.
• Available interfaces: WAN, LAN1, LAN2, LAN3, LAN4, LAN5, Start.
• WAN Access modes: PPPoE, dynamic IP, static IP, 3G/4G/5G.
• Supports static address assignment, virtual server, port forwarding, and DMZ host.
• Module power supply voltage: DC 3.3V 5A.

3. Specifications

3.1. Block Diagram

The following diagram illustrates the internal architecture and interconnections of the HLK-RM65 module's main components.

3.2. Dimensions

Refer to the diagram below for the physical dimensions of the HLK-RM65 module.

4. Setup

The HLK-RM65 module is typically used with a development board for testing and integration. The development kit includes the module, a development board, dual-band antennas, connecting lines, and a 12V1A input adapter.

4.1. Initial Assembly

1. Carefully connect the HLK-RM65 module to the designated slot on the development board. Ensure proper alignment and secure connection.
2. Attach the provided dual-band antennas to the IPEX connectors on the module. The module typically has 5 IPEX connectors for optimal Wi-Fi performance.
3. Connect any necessary peripheral devices (e.g., Ethernet cables to LAN/WAN ports, USB devices) to the development board.
4. Connect the 12V1A input adapter to the power input of the development board.

4.2. Firmware

The HLK-RM65 module comes with default OpenWrt21 firmware, supporting Linux secondary development. This allows for extensive customization and configuration of routing functionalities.

5. Operating Instructions

Once the HLK-RM65 module is assembled and powered on, it functions as a routing module. The default OpenWrt firmware provides a web-based interface for configuration.

1. Power On: Connect the power adapter. The module should power on, and indicator lights (if present on the development board) will illuminate.
2. Network Connection: Connect a computer to one of the LAN ports on the development board using an Ethernet cable. Alternatively, search for the default Wi-Fi network broadcast by the module and connect to it.
3. Access Web Interface: Open a web browser and navigate to the default IP address of the OpenWrt router (commonly 192.168.1.1). You may be prompted for a username and password (default credentials are often root with no password, or admin/admin).
4. Configure WAN: Set up your internet connection under the Network > WAN section. Choose your WAN access mode (PPPoE, Dynamic IP, Static IP, or 3G/4G/5G if supported by your setup).
5. Configure Wi-Fi: Navigate to Network > Wireless to configure your 2.4GHz and 5GHz Wi-Fi networks, including SSID, password, and security settings.
6. Advanced Settings: Explore other sections for advanced configurations such as static address assignment, virtual server, port forwarding, DMZ host, and firewall rules.

6. Maintenance

To ensure the longevity and optimal performance of your HLK-RM65 module, follow these maintenance guidelines:

• Environmental Conditions: Operate the module within the specified working temperature range of -20℃ to +80℃. Avoid exposure to extreme temperatures, high humidity, or direct sunlight.
• Cleaning: Keep the module and development board clean and free from dust. Use a soft, dry cloth for cleaning. Do not use liquid cleaners or solvents.
• Power Supply: Always use the recommended 3.3V power supply for the module and the 12V1A adapter for the development board. Using an incorrect power supply can damage the device.
• Firmware Updates: Regularly check for and apply official firmware updates for OpenWrt to benefit from security patches, bug fixes, and new features. Follow the instructions provided by the OpenWrt community or Hi-Link for safe updating procedures.
• Physical Handling: Handle the module with care to avoid physical damage. Do not apply excessive force to connectors or components.

7. Troubleshooting

If you encounter issues with your HLK-RM65 module, consider the following troubleshooting steps:

• No Power: Ensure the power adapter is correctly connected to the development board and plugged into a working power outlet. Check the power indicator lights.
• No Network Connection: Verify that Ethernet cables are securely connected. If using Wi-Fi, ensure the antennas are properly attached and that your device is connecting to the correct SSID. Try restarting the module.
• Cannot Access Web Interface: Double-check the IP address (default 192.168.1.1) and ensure your computer's network settings are configured to obtain an IP address automatically (DHCP). Clear your browser's cache or try a different browser.
• Slow Wi-Fi Speed: Ensure antennas are correctly installed. Check for interference from other devices. Verify your Wi-Fi channel and bandwidth settings in the OpenWrt interface.
• Module Unresponsive: If the module becomes unresponsive, try a hard reset by disconnecting and reconnecting the power. If the issue persists, a firmware reflash might be necessary (consult OpenWrt documentation).

8. Applications

The HLK-RM65 module is versatile and can be integrated into various applications, including:

• Smart home systems
• Instrumentation
• Wi-Fi remote monitoring/control
• Toy field applications
• Color LED control
• Route gateways
• Intelligent agriculture solutions
• Home routing devices
• Fire and security intelligent integrated management systems
• Smart card terminals, wireless POS machines, and handheld devices

9. User Tips

• For advanced configurations and troubleshooting specific to OpenWrt, it is highly recommended to consult the official OpenWrt documentation and community forums.
• When performing firmware upgrades or significant configuration changes, always back up your current configuration to prevent data loss.
• Ensure proper heat dissipation, especially when integrating the module into custom enclosures, to maintain optimal performance and stability.

10. Warranty and Support

For warranty information, technical support, and further assistance, please contact the seller or manufacturer directly. Details regarding specific warranty periods and support channels should be obtained at the point of purchase or from the official product page.

Manufacturer: Shenzhen Hi-Link IoT Module Store