# Peripherals

The LAA provides many peripherals to automate the attached DUT. The peripherals
can be controlled from the command line using `laacli`.

## Ethernet ports

![Ethernet ports](/_images/hardware/ethernet.jpg){align=center}

### Public ethernet

The public ethernet port is used to connect the LAA to the lab network. This
network should let the LAA connect to the fleet management cloud service.

### Private ethernet

This ethernet port is used to connect the DUT to the LAA in a private network
managed by the LAA. In this network the IPs are:

* LAA: `198.18.0.1`
* DUT: `198.18.0.2`

## OLED

The OLED screen displays information about the status of the LAA:

* IPv4
* version (or target version if an upgrade is in progress)
* [serial numbers](serials.md)
* organization

If the LAA is unable to get an IPv4 or to connect to the [fleet management
service](/software/fleet.md), the right information will be displayed. More
information on the [connectivity guide](/guides/connectivity.md).

## Thermal probe

The LAA comes with 2 embedded thermal sensors and a thermal probe connector.

![Thermal probe](/_images/hardware/thermal-probe.jpg){align=center}

The values can be fetched with:

```shell
laacli temp amb  # ambiant
laacli temp dut  # thermal probe
laacli temp sys  # CPU
```

## USB ports

![USB connectors](/_images/hardware/usb.jpg){align=center}

### DUT USB

* Port 1: type-C with power delivery
* Port 2, 3 and 4: type-A

Each port can be controlled from the command line with

```
laacli usb 1 on
laacli usb 1 off
```

### LAA USB

There is 2 USB port on the front of the LAA:

* USB OTG port
* Serial over USB: LAA serial console

The USB OTG port can be used to provide a mass storage device using USB gadget
mode (USB mass storage emulation):

```
laacli usbg-ms on filename.img
laacli usbg-ms off
```