Tipro BeFREE20 Technical Overview

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: 12 V ± 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 x111 (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 50oC

♦ 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/m2

♦ 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 106 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 @ 1W @ 1 kHz @ 0.5m distance

♦ Loudspeaker (Central)

 type: dynamic

 rated power: 10 W

 output sound pressure level (SPL): 87 dB ± 3 dB @ 1W @ 1 kHz @ 0.5m 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 1W + 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 (109) 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