B. INTEGRAL PARTS AND FUNCTIONALITY
B-3
BeFREE 20 – TECHNICAL OVERVIEW
Power
Blue
Short blink: OFF (power saving mode)
Long blink: SLEEP (standby)
Continuous: ACTIVE (operating)
Disk
Blue
Blinking indicates read/write activity of
SSD
Touchscreen Red
Illuminated when touchscreen is disabled
Warning
Red
Illuminated when an error has been
detected
Figure B.3 LED Indicators
B.2.
Touchmonitor
The touchmonitor comprises a high-brightness TFT LCD and a touchscreen. The
display is connected to the embedded computer via LVDS interface. The touchscreen is
operated by the respective controller with USB interface to the embedded computer.
Brightness of the LCD and all visual indicators on the Stripe (Bar-Graph Displays, LED
Indicators and PTT Key backlight) is adjustable by Brightness UP and DOWN keys.
Home / TouchDisable key can be used to temporarily disable touchscreen for cleaning
purposes.
B.3.
Embedded Computer
BeFREE 20 incorporates an industrial grade single-board computer, which operates the
embedded touchmonitor and provides for an extensive connectivity to enable various
external peripherals to be used along (see Chapter B.5 for more details). It is internally
connected to the Tipro Controller (via USB and COM 4) as well as with the Audio
Section / Subsystem (via USB and Analogue Line-In / Line-Out signals).
The computer is based on Intel’s integrated circuits, what enables a wide-range of
operating systems to be applied. A solid state disk is used as a mass storage device. The
heat generated by integrated circuits is transferred via a heat-pipe to an internal heat-sink,
without a fan. As a result the BeFREE 20 is completely silent in operation, without moving
parts.
