Powering Jetson Orin Nano with PoE Header

Issue Overview

Users are seeking information on how to power the Nvidia Jetson Orin Nano development board using the PoE (Power over Ethernet) header, specifically labeled as J19 on the board. The main query revolves around finding compatible adapters that can be used with this header to provide power to the device. This issue is particularly relevant for users who want to explore alternative power supply options for their Jetson Orin Nano, potentially to simplify their setup or to take advantage of PoE capabilities in their network infrastructure.

Possible Causes

1. Lack of Information: The primary cause of this issue is the limited availability of specific information about compatible PoE adapters for the Jetson Orin Nano.

2. Hardware Compatibility Concerns: Users may be unsure about the voltage and current requirements of the Jetson Orin Nano, leading to hesitation in selecting a PoE adapter.

3. Non-Standard Implementation: The J19 header might not follow a standard PoE implementation, causing confusion about which adapters would work correctly.

4. Risk of Damage: Users may be cautious about using incompatible adapters that could potentially damage the board.

Troubleshooting Steps, Solutions & Fixes

1. Identify J19 Header Specifications:

   • Confirm that J19 is indeed a four-pin 2.54mm header as mentioned in the discussion.
   • Check the Jetson Orin Nano technical documentation for specific voltage and current requirements for the PoE header.

2. Research Compatible PoE Adapters:

   • Look for PoE adapters that match the pin configuration and power specifications of the J19 header.
   • Consider adapters designed for similar single-board computers or embedded systems.

3. Consult Nvidia Support:

   • Reach out to Nvidia’s technical support or community forums for official recommendations on PoE adapters.
   • Search for any application notes or technical bulletins that Nvidia may have released regarding PoE usage with the Jetson Orin Nano.

4. Explore Community Solutions:

   • Search for user-reported successful implementations of PoE powering for the Jetson Orin Nano on forums, GitHub repositories, or maker community websites.
   • Look for DIY solutions that other users might have developed and shared.

5. Test with Caution:

   • If attempting to use a PoE adapter, start with lower power settings if adjustable.
   • Monitor the board’s temperature and performance closely during initial tests.
   • Use a multimeter to verify the voltage output of the PoE adapter before connecting it to the Jetson Orin Nano.

6. Consider Alternative Power Solutions:

   • If PoE proves challenging, explore other power supply options recommended by Nvidia for the Jetson Orin Nano.
   • Look into USB-C power delivery options if available on the board.

7. Document and Share Findings:

   • If a working solution is found, document the specific adapter model, settings, and any modifications required.
   • Share the information with the community to help others facing similar issues.

8. Stay Updated:

   • Keep an eye on official Nvidia channels for any updates or announcements regarding PoE support for the Jetson Orin Nano.
   • Check for firmware updates that might improve or add PoE functionality.