> For the complete documentation index, see [llms.txt](https://nxp.gitbook.io/rddrone-t1adapt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nxp.gitbook.io/rddrone-t1adapt/status-leds.md).

# Status LEDs

A number of status LEDs are provided: 

* A green power LED that lights up when power is supplied to the board. 
* Two red T1 status LEDs: 'inner' and 'outer' (see Figure 3). A stable T1 connection has been established between the two on-board PHYs when the 'inner' status LED is flashing and the 'outer' status LED is solid on. 
* Two green LEDs on the RJ45 connector. An RJ45 connection has been established when the Data status LED is flashing and the Link status LED is solid on.

![](https://2450828064-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M9tTGlc2SB_GfvlG8d4%2F-MaZIyE65us8r40c59kR%2F-MaZJ6vUobGKEQgwtlPv%2Fimage.png?alt=media\&token=db5fb05a-f59e-4a8a-877e-acf01ad9a10f)