RAK-120S - User Guide, Rev. 1.0
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4.2.
Front I/O Panel
Figure 1: Front I/O Panel
1 Power Switch (see Chapter 4.2.1)
2 Power LED (see Chapter 4.2.2)
3 Storage LED (see Chapter 4.2.3)
4 USB 2.0 (see Chapter 4.2.4)
4.2.1.
Power Switch
Press this switch to turn the system on or off.
Even when the system is turned off via the power switch there is still a standby voltage on
the baseboard. The unit is only completely disconnected from the DC mains, when the power
is removed.
4.2.2.
Power LED
The power LED lights up green if the system powered on.
Prerequisite: The system must be attached by means of the power cord to an appropriate mains (DC).
4.2.3.
Storage LED
The storage LED blinks red when data is being written into or read from the HDD / SSD drive.
4.2.4.
USB 2.0
The RAK-120S provides two USB 2.0 / 1.1 interfaces on the front I/O panel. These connectors allow connection of USB-
compatible devices to the system.
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