Tipro BeFREE20 Installation guide

BeFREE 20
15.0” Touchcomputer (J1900) with InterCom
TECHNICAL OVERVIEW
Description and Application
BeFREE20_TO_1_1.doc
Version 1.1
January 4, 2017

TABLE OF CONTENTS II
BeFREE 20 – TECHNICAL OVERVIEW
TABLE OF CONTENTS
A. GENERAL INFORMATION.......................................................................................A-1
A.1. Highlights..............................................................................................................A-1
A.2. Technical Characteristics ......................................................................................A-2
B. INTEGRAL PARTS AND FUNCTIONALITY .......................................................... B-1
B.1. Operator Interface.................................................................................................. B-1
B.2. Touchmonitor ........................................................................................................ B-3
B.3. Embedded Computer............................................................................................. B-3
B.4. Intercom (Audio Section)...................................................................................... B-4
B.4.1. Microphone Amplifier ................................................................................... B-5
B.4.2. Left and Right Speaker Amplifiers................................................................ B-5
B.4.3. Central Speaker Amplifier............................................................................. B-5
B.4.4. Bar-Graph Displays ....................................................................................... B-6
B.4.5. Incremental Encoders .................................................................................... B-6
B.5. External Connectors .............................................................................................. B-7
B.5.1. External Digital Inputs................................................................................... B-7
C. OPERATION ................................................................................................................ C-1
C.1. Configuring BeFREE 20 ....................................................................................... C-1
C.2. Applying BeFREE 20............................................................................................ C-1
D. OPTIONS......................................................................................................................D-1
D.1. Inclination Mechanism..........................................................................................D-1
D.2. HID Telephony Interface ......................................................................................D-1
D.3. Echo-Cancellation Circuitry..................................................................................D-2
D.4. Goose-Neck Microphone ......................................................................................D-2
E. ORDERING CODES .................................................................................................... E-1
E.1. BeFREE 20 ............................................................................................................ E-1
E.2. Inclination Mechanism .......................................................................................... E-2
F. REFERENCES ...............................................................................................................F-1
G. NOTICES......................................................................................................................G-1
G.1. Disclaimer .............................................................................................................G-1
G.2. Copyright Notice ...................................................................................................G-1

A. GENERAL INFORMATION A-1
BeFREE 20 – TECHNICAL OVERVIEW
A. GENERAL INFORMATION
The BeFREE 20 (BF 20) is a member of the modular FREE (also referred to as
FREE/FREE+/BeFREE) product family, integrating a 15.0” touchmonitor, a computer and
an intercom device. It is compatible and combinable with all existing FREE modules. The
touchmonitor comprises a high-brightness TFT LCD and 5-wire resistive touchscreen. The
computer is based on a main-board with Intel quad-core Celeron processor (J1900) and a
solid state disk. Thanks to low-power components and the corresponding electronic and
thermal design the BeFREE 20 is completely silent and without moving parts.
The Intercom section consists of a goose-neck microphone, illuminated PTT key, stereo
loudspeakers, two volume control knobs and two VU-meters. Its primary audio interface is
USB via two independent Audio Codecs, but it is also connected to the analogue sound
card of the embedded computer. This dual interface results in up to six listening (output)
channels and three parallel recording (input) channels. Status of the PTT key is reported
via HID Keyboard and/or HID Telephony interface.
A.1. Highlights
FEATURES
♦space-saving integration of a fanless touchcomputer and an intercom (functionally
equivalent to the combination of BeFREE 15 and two Speakerbox modules)
♦modular – combinable with other FREE modules into multifunctional terminals
♦low-profile horizontal design
♦silent and reliable - no moving parts, industrial grade components, Ethernet
redundancy, redundant internal audio and controller interfaces
♦extensive connectivity (LAN, USB, COM, external display, digital inputs)
♦cable management – hidden and secured, but accessible
♦built-in Tipro controller enables:
modularity and programmability
energy saving modes
touchscreen disable/enable control
brightness adjustment
six programmable keys
two programmable digital inputs (e.g. for an external PTT switch/pedal)
♦stereo loudspeakers (2 x 2W) with two separate volume control encoders
♦additional low-frequency loudspeaker (1 x 1W) with programmable equalizer

A. GENERAL INFORMATION A-2
BeFREE 20 – TECHNICAL OVERVIEW
♦total 5 W output power generates sound pressure level (SPL) of approximately 93 dB
at 1.0 m distance, what is approximately 25 times louder than average conversation
♦goose-neck microphone with illuminated PTT key
♦dual three-colour bar-graph display
♦five mechanical keys for brightness control, volume adjustment and other functions
♦several LED indicators (power, SSD, microphone, touchscreen ...)
♦optional Inclination Mechanism (VESA 75)
APPLICATIONS
♦operator/dispatcher terminals/consoles for command and control centres in:
transport and traffic control (railways, air traffic …)
public safety (police, fire brigades, ambulance …)
utilities (electricity, gas ...)
building/facility management systems (airports, banks, industrial plants …)
♦trading and banking consoles
♦multifunctional control panels
A.2. Technical Characteristics
ELECTRICAL
♦power supply: 12V ±5% (from an external AC/DC adapter)
♦power consumption:
Operating Mode Typical Maximal
OFF (power saving) 0.2W TBD
SLEEP (Windows standby) 3.0W TBD
IDLE 18.0W TBD
ACTIVE 23.0W 34.0W
Note 1: Values in the table above are temporary approximations of typical consumption, obtained
by measurements at the 12 V power input of the BeFREE 20 (LCD at full brightness) without any
additional Tipro modules and without any other peripherals connected. Terminology for Operating
Modes is taken from “ENERGY STAR Program Requirements for Computers: Version 5.0”.
♦internal interface and power connectors (to provide for modularity):
left-hand side Tipro Bus connector: 6-pin Micro-MaTch header (male) at the
end of a 6-wire ribbon cable
right-hand side Tipro Bus connector: 6-pin Micro-MaTch header (male) at the
end of a 6-wire ribbon cable

A. GENERAL INFORMATION A-3
BeFREE 20 – TECHNICAL OVERVIEW
right-hand side Tipro Power Bus connector: 10-pin Micro-MaTch header
(male) at the end of a 10-wire ribbon cable
♦external interface and power connectors (to provide for external expansions):
standard computer interfaces: LAN, USB, COM, VGA … (see Chapter B.5 for
details)
MECHANICAL
♦casing: plastic ABS, black (C15) colour with matte black (C25) top part
♦gross dimensions (with side-covers): 440 x 342 x 111 (W x D x H ) [mm]
♦goose-neck microphone length/height: 350±50mm
♦weight: 6.3 kg (approximately)
♦protection (sealing) grade: IP 20 (according to EN 60529)
Figure A.1 Physical Dimensions
ENVIRONMENTAL
♦operating ambient temperature range: +5°C to +35°C
♦storage ambient temperature range: -10°C to 50
o
C
♦relative humidity range: 20% to 80% (non-condensing)
EMBEDDED COMPUTER
♦Processor (SoC)
Intel Celeron J1900 2.0 GHz (2.42 GHz burst frequency)
♦Chipset
Northbridge functionality integrated in the SoC
Southbridge functionality integrated in the SoC

A. GENERAL INFORMATION A-4
BeFREE 20 – TECHNICAL OVERVIEW
♦System Memory
4GB DDR3L - 1333
♦Video
graphic processor integrated in the SoC
dual independent display support
resolution: up to 2560x1600
♦Dual Ethernet:
2 x Intel I211, 10/100/1000 Base-TX
♦Audio
Analogue Line In and Line Out (internally connected to Intercom)
♦Mass Storage
type: Solid State Disk
technology: Multi-Level Cell (MLC) NAND
interface: SATA II - 3 Gb/s
form factor: 2.5”
capacity: ≥120 GB
DISPLAY
♦type: TFT LCD
♦size: 15.0” diagonal
♦aspect ratio: 4:3
♦native resolution: 1024 × 768 (XGA)
♦luminance/ brightness (typical): ≥400 cd/m
2
♦contrast ratio (typical): ≥500:1
♦backlight lifetime (typical): ≥50,000 hours
TOUCHSCREEN
♦technology: 5-wire resistive (ELO)
♦positional accuracy: 2.03 mm (standard deviation of error)
♦positional accuracy: ± 4.572 mm (maximum error)
♦touch activation force: < 113g (typically)
♦controller resolution: 4096 x 4096 touch points
♦light transmission: 80 ± 5 % (at 550 nm wavelength)
♦lifetime: 35 x 10
6
touches in one location

A. GENERAL INFORMATION A-5
BeFREE 20 – TECHNICAL OVERVIEW
AUDIO SECTION (INTERCOM)
♦Loudspeakers (Left and Right)
two in parallel within the left output
two in parallel within the right output
type: dynamic
rated power: 3 W
output sound pressure level (SPL): 84 dB ± 3 dB @ 1 W @ 1 kHz @ 0.5 m distance
♦Loudspeaker (Central)
type: dynamic
rated power: 10 W
output sound pressure level (SPL): 87 dB ± 3 dB @ 1 W @ 1 kHz @ 0.5 m distance
♦Goose-neck Microphone
type: electret condenser, unidirectional
max input: 120 dB SPL
♦Analogue Amplifiers
designed to meet wide-band IP telephony standards
frequency pass-band: (100 Hz - 8 kHz) TYP
output power: 5 x 1 W (2 x 2 x 1 W + 1 x 1 W)
♦USB Audio Codecs
model: Texas Instruments PCM 2900C(Codec A) & PCM 2902C(Codec B)
USB Interface: full-speed, USB 2.0 compliant, certified by USB-IF
resolution: 16-bit Delta-Sigma ADC and DAC
sampling rates (ADC): 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
sampling rates (DAC): 32, 44.1, 48 kHz
recommended data format: 16-bit (rather than 8-bit), stereo (rather than mono)
MECHANICAL KEYS
♦Push To Talk Key (two key-switches in parallel)
model: Cherry MX
key travel: 3.6mm to 4.0mm total, (2 ±0.6) mm pretravel
actuating force: (60 ±20) cN
reliability (Mean Cycles To Failure): MCTF = 1 billion (10
9
) press/release cycles
(50 million is guaranteed minimum)
♦Control Keys
model: Diptronic DTS
key travel (typical): 0.3mm
actuating force (typical): 255 cN
lifetime (minimal): 0.5 million operations

B. INTEGRAL PARTS AND FUNCTIONALITY B-1
BeFREE 20 – TECHNICAL OVERVIEW
B. INTEGRAL PARTS AND FUNCTIONALITY
BeFREE 20 represents an integration of a touchmonitor (display with touchscreen), a
computer, an intercom and a controller.
Figure B.1 Operator Interface of BeFREE20
B.1. Operator Interface
The Stripe (see Figure B.2 below) is an ergonomically designed vertical area along the
right-hand side of the display. It comprises a number of visual indicators and mechanical
keys with a proper tactile feedback in order to provide the operator with a quick insight and
immediate access to important controls. The most prominent position is assigned to the
PTT key, which consists of a full-travel mechanical key-switch and a large actuator with
dimmable background illumination. Several additional LED indicators (see Figure B.3) are
located in a Stripe extension on the left-hand side of the display.
Left
Speaker
Left Encoder
Microphone
Right Encoder
Display
PTT Key
Control Keys
Bar
-
Graph Displays
To chscreen
LED Indicators
R
ight
Speake
r
ON/OFF Key
Central
Speaker
Micro
phone LED

B. INTEGRAL PARTS AND FUNCTIONALITY B-2
BeFREE 20 – TECHNICAL OVERVIEW
Microphone LED Illuminated (red) while the microphone is
active (enabled).
Bar-Graph Displays Green: loudspeakers volume level
Red: VU-meter (actual signal level at the
loudspeakers and the microphone)
Orange: display brightness level
Volume UP Key Press to increase volume of left and right
speakers.
Volume DOWN Key Press to decrease volume of left and right
speakers.
Home / TouchDisable
Key
Long press disables touchscreen. Short
press (re)enables touchscreen.
Brightness UP Key Press to increase brightness of the display
and all visual indicators.
Brightness DOWN
Key
Press to decrease brightness of the display
and all visual indicators.
PTT (Push To Talk)
Key
By default PTT, but can be set to PTM
(Push To Mute) or any other key event.
Blue backlight can be programmed to
blink or turn ON/OFF upon press/release.
Figure B.2 The Stripe (Keys & Indicators)

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.