Power connector light
Audio-out (headphone) jack/Audio-in (microphone)
RJ-45 (network) jack
Chapter 2 External component identification
Connects an AC adapter.
On: The device is running on AC power.
Off: The device is running on battery power.
Connects an optional USB device.
Enables airflow to cool internal components.
The device fan starts up automatically to cool
internal components and prevent overheating. It is normal
for the internal fan to cycle on and off during routine
Connects the device to an optional docking device or an
optional expansion product.
Produces sound when connected to optional powered
stereo speakers, headphones, earbuds, a headset, or
television audio. Also connects an optional headset
To reduce the risk of personal injury, adjust
the volume before putting on headphones, earbuds, or a
headset. For additional safety information, refer to the
Regulatory, Safety and Environmental Notices.
When a device is connected to the jack, the
device speakers are disabled.
Connects a network cable.