> For the complete documentation index, see [llms.txt](https://docs-7.phoenixlidar.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-7.phoenixlidar.com/rover/hardware/navbox/al3-16-al3-32/nav-box-front-and-rear-ports.md).

# Ports and User Elements

## Front Panel

![](/files/-LRnFX5FaA_uuesEAsJL)

1. Wi-Fi Antenna terminal/s
2. UHF Antenna port (optional)
3. GPS Antenna port/s
4. CPU Power button
5. Sensor Power button
6. LiDAR/IMU port
7. Status LED indicators
8. DC Power Input (12 V - 28 V)
9. External Input/Output Data port

## Rear Panel

![](/files/-LRnG4nSt98hxSJi-fnu)

1. Exhaust vents
2. Mini HDMI port
3. USB 3.0 ports
4. LAN port
5. Mini DisplayPort