Tipro BeFREE20 Technical Overview

Tipro BeFREE20 Technical Overview

15.0” touchcomputer (j1900) with intercom

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

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Summary of Contents for Tipro BeFREE20

  • Page 1 BeFREE 15.0” Touchcomputer (J1900) with InterCom TECHNICAL OVERVIEW Description and Application BeFREE20_TO_1_1.doc Version 1.1 January 4, 2017...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS 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.
  • Page 3: General Information

    ♦ 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...
  • Page 4: Technical Characteristics

    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”.
  • Page 5 A. GENERAL INFORMATION 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...
  • Page 6 A. GENERAL INFORMATION ♦ 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) ♦...
  • Page 7 A. GENERAL INFORMATION 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 ♦...
  • Page 8: Integral Parts And Functionality

    Display PTT Key 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.
  • Page 9 B. INTEGRAL PARTS AND FUNCTIONALITY 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.
  • Page 10: Touchmonitor

    (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).
  • Page 11: Intercom (Audio Section

    B. INTEGRAL PARTS AND FUNCTIONALITY B.4. Intercom (Audio Section) The functional block diagram of the audio section is shown in Figure B.4 below. Left and Right Speaker are physically/electrically realized as two loudspeakers in parallel to double the output volume. The Central Speaker, along with associated hardware equalizer, emphasizes lower frequencies in order to improve naturalness and intelligibility of the reproduced speech.
  • Page 12: Microphone Amplifier

    B. INTEGRAL PARTS AND FUNCTIONALITY B.4.1. Microphone Amplifier This is a logarithmic audio amplifier with programmable gain, noise gating threshold and compression ratio. Noise gating feature enables ambient noise to be suppressed. All sounds below the threshold are removed inside the amplifier, so with higher threshold the microphone needs to be used closer to the mouth and speech needs to be louder to get through the amplifier.
  • Page 13: Bar-Graph Displays

    B. INTEGRAL PARTS AND FUNCTIONALITY the Left and to the Right Speaker. The amplifier can deliver up to 1 W of electric power to the Central Speaker. B.4.4. Bar-Graph Displays Each of the two bar-graph displays comprises 10 three-colour (red, green and orange) LEDs.
  • Page 14: External Connectors

    B. INTEGRAL PARTS AND FUNCTIONALITY B.5. External Connectors Numerous connections for external devices are available at the Connector Plate (see Figure B.5) from underneath the module. Most of them are standard interfaces (USB, LAN, COM, VGA …) intended for users to apply freely. Designator Type Note...
  • Page 15 Figure B.7 Applying Digital Inputs These inputs have an alternative function (direct access to the Tipro controller from an external computer via serial RS232 port, as per Figure B.6) which is intended for installation and maintenance purposes. More details can be found in the Chapter C.1 as well as in the Reference [10].
  • Page 16: Operation

    It is also possible to dynamically modify certain settings (e.g. display brightness, LED indicators, touchscreen disable/enable for cleaning purposes …) from the application software. For that purpose Tipro provides the respective Windows API (HID API) and the associated documentation. BeFREE 20 can be programmed/configured externally, from another computer. That computer needs to operate under Windows with ChangeMe utility installed and have one serial COM port available.
  • Page 17 C. OPERATION Figure C.1 Example BeFREE 20 Configuration Handset BeFREE 20 Handset TM-HTA BF20 TM-HTA Tipro Bus Tipro Tipro Bus USB Audio Tipro Bus Tipro Bus Module Device Module Module Controller USB Audio USB Audio Generic Device Device Root Hub...
  • Page 18: Options

    D. OPTIONS D. OPTIONS D.1. Inclination Mechanism BeFREE 20 can be fitted with an Inclination Mechanism (also referred to as Angle Adjustment Mechanism). Normally, the display surface of BeFREE 20 is inclined for 15 against the horizontal plane. The mechanism enables gradual adjustment of the angle from approximately 30 to 70 Figure D.1...
  • Page 19: Echo-Cancellation Circuitry

    D. OPTIONS D.3. Echo-Cancellation Circuitry Acoustic echo is a physical phenomenon inherent to hands-free devices (such as Intercom) in full-duplex mode, so it needs to be suppressed and/or cancelled. This is normally implemented in the application software through the specific signal processing routines.
  • Page 20: Ordering Codes

    AC/DC adapter is included in the packaging, along with the EU power cord. installations where AC/DC adapter needs to be placed further away (more than about 1m) from the BeFREEE 20 Tipro offers the DC power extension cable (Ordering Code TM- CPH) which is 1.5 m long.
  • Page 21: Inclination Mechanism

    E. ORDERING CODES E.2. Inclination Mechanism U A - C 1 5 - x x x 1 – Accessory Type S – Mechanical Support mechanism (Inclination Mechanism) 2 – Mechanism Type U : Universal 3 – Adapter Type A : BeFREE 20 and BeFREE 10 4 –...
  • Page 22: References

    F. REFERENCES F. REFERENCES 1. “BeFREE 10” – Technical Overview 2. “HANDSET” – Technical Overview 3. “SPEAKERBOX” – Technical Overview 4. “BeFREE 15” – Technical Overview 5. “ChangeMe” – User’s Manual 6. “HID API” - Reference Manual 7. “Modularity Demystified” – “Dispatching Hints & Tips” White Paper – Issue No. 001 8.
  • Page 23: Notices

    G. NOTICES G.1. Disclaimer Information furnished by Tipro is believed to be accurate and reliable. However, Tipro makes no representations or warranties regarding the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice.

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