Hardware Revision History
Overview
The Radxa Dual 2.5G Router HAT product has undergone multiple iterations of optimization. Below is a detailed change log for each hardware version. This document aims to help users understand the differences between versions, ensure compatibility, and guide upgrade decisions.
Version Naming Convention
Hardware versions of the Radxa Dual 2.5G Router HAT follow the "V1.x" format, where the number represents major design iterations.
Version History
V1.5 (Current Production Version)
Hardware Changes
- Production-Optimized Version: Stable design verified through production testing
- Resistor Placement Adjustment: Optimized the layout of resistors around the power interface to resolve component interference issues when connecting/disconnecting the power cable
- Structural Stability Enhancement: Improved overall component layout for increased reliability during long-term use
2-Pin 12V Power Output Connector Specifications
- Pin Pitch: 2.5mm
- Form Factor: 1x2PIN, horizontal mount, SMD
- Compatible Plug: JST PH 2P housing (2.5mm pitch)
- Note: This connector provides 12V DC power output only and does not support PWM speed control
Application Scenarios
- All production environments and commercial applications
- Long-term deployments requiring high stability
V1.4 (Internal Testing Version)
Hardware Changes
- Connector Optimization: Changed the vertical 2-Pin 12V output connector to a horizontal design and adjusted the mounting direction by 180 degrees
- PCB Identifier Update: Silkscreen updated to "Radxa Dual 2.5G Router HAT V1.4"
- Internal Testing Version: Provided only to a limited number of developers for verification testing
Technical Improvements
- Optimized connector layout for more convenient external device connections
- Enhanced stability of the power output interface
2-Pin 12V Power Output Connector Specifications
- Pin Pitch: 2.5mm
- Form Factor: 1x2PIN, horizontal mount, SMD
- Compatible Plug: JST PH 2P housing (2.5mm pitch)
- Note: This connector provides 12V DC power output only and does not support PWM speed control
V1.3 (Development Preview Version)
Hardware Changes
- Mechanical Structure Optimization: Removed 4 surface-mount nuts and adopted a mounting solution using 2 screws with double-pass copper posts
- Interface Height Adjustment: 40-pin connector height specification adjusted to 17.5mm
- Functionality Extension: Added a 2-Pin 12V power output interface to support X4 device connections, with polarity clearly marked in PCB silkscreen
- PCB Identifier Update: Silkscreen updated to "Radxa Dual 2.5G Router HAT V1.3"
- Internal Testing Version: Provided only to a limited number of developers for verification testing
Technical Improvements
- Simplified the installation process for improved assembly efficiency
- Enhanced physical compatibility with Raspberry Pi and Radxa mainboards
- Extended power output functionality with additional device connection options
2-Pin 12V Power Output Connector Specifications
- Pin Pitch: 2.54mm
- Form Factor: 1x2PIN, vertical mount, SMD, without locating post
- Compatible Plug: Standard JST PH 2P housing (2.54mm pitch)
- Note: This connector provides 12V DC power output only and does not support PWM speed control
Version Identification Methods
You can identify your Radxa Dual 2.5G Router HAT version by:
- PCB Silkscreen: Check the version identifier on the circuit board, which typically has a "Vx.x" marking
- Product Packaging: Official production versions have complete version information on the packaging
Technical Support
If you have any questions about hardware versions or need technical support, please contact the Radxa technical support team:
- Technical Forum: forum.radxa.com
- Email: [email protected]