Home

SPEAKERBOX

1. Jexyeedg eotoA ous SIN euinjoA Jexyeeds yay euiduv d l T o pem e EN Vous 7 97 o ydes6 1eq 037 L A7 SER youms serie d Fi Pinon ouug0 9 9 uoIsseJduio ejewjos jo3uoo 348 BED esioN eje jos Japdwy 104ju0 J349 WNJOA BeMYOS p Sur 0A yayms ouo y root X r m p E ia s uo HOY 104ju09 ac U0 P S eJewjos 94 91607 uos ojuoo auinjo jespeeu jjespueu eewos pr y Y S1ojeoipul 3319 S o ajqewebod 9 Buisues uonoeuuoo jespuer jespeend A Y ES e snqoJd J8 O SpueWILUOD snqoJdi J8 O0 sjuana Key 92epo asn A iagram ional Block Di 2 Speakerbox Funct Figure B SPEAKERBOX TECHNICAL OVERVIEW B INTEGRAL PARTS AND FUNCTIONALITY B 3 B 1 Microphone Amplifier This is a logarithmic audio amplifier with programmable gain noise gating threshold and compression ratio It processes microphone signal of the currently selected audio device Hands Free goose neck microphone Headset or Handset The noise gating feature enables ambient noise to be suppressed All sound
2. Internal circuitry Suggested external circuitry Vcc 4k7 Figure B 5 External Digital Inputs B 11 Interface and Power Connection As shown in Figure B 6 the Interface amp Power connector RJ 8P 8C is accessible from the bottom part of the housing The corresponding cable is split at the computer side one end for USB and the other for a power supply connection As a rule the Speakerbox requires 12V power from an external power supply e g TM VPB The only exception to the rule is Speakerbox as a standard add on module TM FSx used in a FREE configuration along with a BeFREE 15 touchcomputer or a Powered FREE 15 touchmonitor where the touchcomputer or the touchmonitor provides power to the rest of the configuration via Tipro Power Bus In this case the external cable has only one end USB at the computer side Examples of power and signal connections are presented in Figure B 7 and Figure B 8 for the two representative modular configurations InterCom and Terminal Console Interface amp Power Cable TM FMx Interface Only Cable TM FSx Figure B 6 Speakerbox Bottom View Detail Interface amp Power Connection SPEAKERBOX TECHNICAL OVERVIEW TIPRO B INTEGRAL PARTS AND FUNCTIONALITY B 7 B 12 Differences between Stand Alone and Add On Versions The TM FMU is a Stand Alone version and a functional superset of the TM FSU Add On version of the module It additionally incorpora
3. Manual HID API Reference Manual Modularity Demystified Dispatching Hints amp Tips White Paper Issue No 001 Hook amp PTT in Software Dispatching Hints amp Tips White Paper Issue No 004 HID Telephony Interface Dispatching Hints amp Tips White Paper Issue No 005 e ee A E D E ta H Fa SPEAKERBOX TECHNICAL OVERVIEW TIPRO G NOTICES G 1 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 G 2 Copyright Notice 2007 2014 Tipro All rights reserved Trademarks and registered trademarks are the property of their respective owners SPEAKERBOX TECHNICAL OVERVIEW TIPRO
4. Three digit number reserved for product customizations It is omitted in case of standard version Note 1 Speakerbox interface amp power cable is considered to be an integral part of the module and shall not be ordered separately Note 2 Speakerbox requires 12V power supply to operate see Chapter B 11 for details The respective AC DC adapter is included in the modular configurations where needed and shall not be ordered separately SPEAKERBOX TECHNICAL OVERVIEW TIPRO E ORDERING CODES E 2 E 2 Stand Alone Version Configuration 1 2 3 4 5 6 7 TMC FM C V C15 000 1 C Configuration Complete Device 2 F Speakerbox Module TM FMx 3 M Integrated Controller Master Module 4 C Interface Cables Included 5 V Side Covers End Caps and or AC DC Adapter Power Supply Included 6 Housing Colour C15 black is the standard colour 7 Custom Version Three digit number reserved for product customizations It is omitted in case of standard version Note 1 Stand Alone Speakerbox requires 12Vpc power supply to operate The respective AC DC adapter is included in the packaging along with the EU power cord SPEAKERBOX TECHNICAL OVERVIEW TIPRO F REFERENCES F 1 T REFERENCES HANDSET Technical Overview BeFREE 15 Technical Overview BeFREE 10 Technical Overview POWERED FREE 15 Technical Overview ChangeMe User s
5. the host system EXTERNAL EXTERNAL HANDSET HEADSET S9 tT i VOICE SPEAKER ALERT SPEAKER p GOOSENECK l MICROPHONE e m HANDSFREE DEVICE SPEAKERBOX Figure A 1 Speakerbox Simplified Block Diagram SPEAKERBOX TECHNICAL OVERVIEW A GENERAL INFORMATION A 2 All embedded functions switching between the devices volume control side tone feature noise gating and compression of microphone signals are programmable via ChangeMe software and or controllable by the application software By default the module operates as per predefined state diagram see chapter C in so called Off Line operating mode but can be at any time switched respective Windows API has been provided for under total control of the application software i e into the On Line operating mode Integrated mechanical keys 6 of them operate as programmable USB keys i e emulating user definable input from a standard computer keyboard what enables seamless integration of these features into existing application software without any intervention in the code Once configured using ChangeMe the module does not require any proprietary software to operate but rather generic USB HID keyboard for mechanical keys and USB audio for voice drivers of the operating system in use As all other FREE add on modules the Speakerbox module requires a Tipro USB controller to operate The controller is normally
6. Configuring Speakerbox The Speakerbox is a relatively complex device with a number of programmable settings parameters provided for users to configure in accordance to the particular application To enable this feature Tipro supplies the respective programming utility ChangeMe which operates only under Windows operating systems It assists users to define own set of parameters save them into a file for possible replication in the future and program into non volatile memory of the device The USB Speakerbox module implements a standard USB audio Codec Therefore no device specific driver is needed for the module to operate under Windows operating systems However it may or may not be the case with other operating systems such as Linux where it depends on the actual distribution kernel version etc MIC key pressed Connect Gooseneck Mic Send MIC key pressed key event Headset unit connected MIC key released pem HF key released Disconnect Gooseneck Mic Disconnect Handset Disconnect Gooseneck Mic Send MIC key released key event Disconnect LS Connect Headset Send Headset Connected key event Headset unit disconnected m Handset On Hook S p HF key pressed E Connect LS HANDSFREE lt lt Disconnect Headset N Send Headset Disconnected key event Handset Off Hook Handset On Hook HF key released HF key pressed Disconnect LS Connect LS Disconnect Gooseneck Mic Discon
7. SPEAKERBOX FREE FREE BeFREE Inter Com Module TECHNICAL OVERVIEW Description and Application SIE VIS HP um AN SpeakerBox TO 7 l doc Version 7 1 December 15 2014 l Tir RO TABLE OF CONTENTS TABLE OF CONTENTS A GENERAL INFORMATION EE A 1 AN EE A 2 A ALS Termino eeben A 3 A 3 Technical E E A 4 B INTEGRAL PARTS AND FUNCTIONALITY eeeeeeee eene enne nnne nennen B 1 EL Microphone Fstiiirigr cH B 3 B 2 Handset Eug EE B 3 B3 E E E E B 3 E EE E E E E BA EE e E BA B6 ee EE BA B 7 Mechanical Keys with LED Indicators ccsssscsssssssesssessrscessssncessareressccesnass B 4 BS External Headset Connection ee scenes eh epa eeiegk Edge Fo en Ea RR CAE RU Ae Ud eara Uds B 4 H5 External Handset Connection gie B 5 B 10 External Digital INPUTS unen tio qeiude dine ne eiaeia esaea ea B 5 B 11 Interface and Power Connection s eiussesesoee traces terrae oriri eR Ee tese neo E Mera RE B 6 B 12 Differences between Stand Alone and Add On Versions s B 7 C OPERATION e C 1 D Config ring SDeJEGEDOX ee C 1 de ospite ns aaa nae tinsied nag sancantadnaea geese onesie ance a ieee anes C 2 C 3 Using Tipro USB Audio Modules ask C 2 D OPTIONS fr eee D 1 DL HID Telephony Interfaces e reti geh pa REpee e ERR QU ek pa Fr Ru a CAE Wenestdesencteness D 1 I2 eeneg D 1 15 3 Gibose N
8. ates Each transition is described by the event which may cause it to happen text in red colour and the actions to be taken upon the event text in black colour In the On Line operating mode the host computer controls the complete operation of the module This mode is intended for advanced users having control over the application software design The respective Windows API HID API is available as well as the associated technical documentation C 3 Using Tipro USB Audio Modules Besides the USB Speakerbox Tipro also offers other USB audio modules e g Handsets Touchmonitors with integrated loudspeakers that can be joined into a single FREE configuration On the other side Windows operating systems present each of them as a USB Audio Device In order to enable independent addressing and differentiation each type of FREE audio module Handset Speakerbox Touchmonitor has a different USB product ID However Tipro can not guarantee that the actual Product ID of the USB Speakerbox module or any other individual FREE USB audio module will not change in the future as this depends on the USB Codec IC vendor s who reserve the right to change it SPEAKERBOX TECHNICAL OVERVIEW TIPRO D OPTIONS D 1 D OPTIONS D 1 HID Telephony Interface Actual statuses pressed released of the six mechanical keys are normally reported to the host computer as a programmable sequence of keystrokes generated by a standard USB keyboar
9. be suppressed and or cancelled This is normally implemented in the application software through specific signal processing routines Alternatively it can be achieved in the hardware using a digital signal processor Basic properties of the optional see Chapter E 1 for details on the respective Ordering Code Echo Cancellation circuitry Echo Canceller are listed below performance full duplex sampling rate 16 kHz acoustic echo cancellation gt 40 dB latency lt 50 ms power consumption 250 mWrv SPEAKERBOX TECHNICAL OVERVIEW TIPRO D OPTIONS D 2 D 3 Goose Neck Microphone By default the goose neck microphone is an integral part of the Speakerbox but it can be optionally omitted See Chapter E 1 for details on the respective Ordering Code SPEAKERBOX TECHNICAL OVERVIEW TIPRO E ORDERING CODES E 1 E ORDERING CODES E 1 Module TM FS U C15 xxx 1 Type F Speakerbox module HandsFree or InterCom 2 Configuration S Standard FREE add on module M Stand alone FREE module with Tipro USB controller 3 Audio Interface and Integrated Options USB USB no goose neck microphone USB integrated Echo Canceller USB with HID Telephony Device USB with HID Telephony Device no goose neck microphone USB with HID Telephony Device integrated Echo Canceller 42 iN S IS t rS 4 Housing Colour C15 black is the standard colour 5 Custom Version
10. d this way emulating a generic HID Keyboard Device An example of the application can be found in the Reference 8 Hook and PTT in Software Since nearly all operating systems are capable of accepting standard USB keyboard input and nearly every application software expect the operator to use it this concept typically enables Tipro Modular Dispatcher Terminals to be integrated into the existing software environment without any intervention in the code However certain software applications are designed to enquire on the status of the keys rather than capturing the respective keyboard events In such cases the HID Telephony Interface is applicable It is supported by the special Speakerbox variants TM FxT that send status reports only when specifically addressed to what is different to HID Keyboard devices that report automatically to the respective driver whenever a change in status occurs TM FxT Speakerboxes represent supersets of the standard TM FxU counterparts being capable to emulate HID Telephony and HID Keyboard device concurrently All Speakerbox variants with HID Telephony support TM FxT as well as the variants with integrated Tipro controller TM FMx comprise a bus powered USB hub and therefore have to be connected to the root hub of the host computer e g BeFREE 15 D 2 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
11. dressed to a mono audio device mono audio channel same as audio channel stereo channel a combination of one input and two output left and right audio signals addressed to a stereo audio device voice channel the pair of input audio signal and left output audio signal alarm output alert output right output audio signal USB audio output USB digital output audio signal of a computer SPEAKERBOX TECHNICAL OVERVIEW TIPRO A GENERAL INFORMATION A 4 USB audio input USB digital input audio signal of a computer USB audio port regular USB downstream port of a computer used to transmit two USB output signals left and right and to receive one USB input audio signal A 3 Technical Characteristics ELECTRICAL power supply analogue circuitry 12V 5 via Tipro Power Bus from Powered FREE 15 Touchmonitor or BeFREE 15 Touchcomputer or alternatively from an external power supply e g TM VPB power supply digital circuitry 5V 5 from Tipro controller via Tipro bus current consumption analogue circuitry up to 600 mA 300 mArv depending on the actual volume settings current consumption digital circuitry TM FSU amp TM FSC up to 100mA 50 mAtyp current consumption digital circuitry other versions up to 150 mA 75 mArvr control interface TIPRO bus Speakerbox as standard add on FREE module TM FSx control interface USB Speakerbox as FREE module wit
12. eath keycap covers SPEAKERBOX TECHNICAL OVERVIEW TIPRO B INTEGRAL PARTS AND FUNCTIONALITY B 1 B INTEGRAL PARTS AND FUNCTIONALITY Voice Speaker Alert Speaker Goose Neck Microphone Bar Graph Display Incremental Encoder Volume Up Key Microphone MIC Key Volume Down Key Hands Free HF Key Programmable Key Programmable Key Figure BI Speakerbox Operator Interface Figure B 2 shows the functional block diagram of the Speakerbox The voice channel of the computer left output audio signal and input audio signal is routed to the selected mono audio device that can be Hands Free the external Headset or the external Handset Only one audio device can be active at a time The Alert Speaker is permanently connected to the Alert Alarm channel of the computer The Voice Speaker and the Alert Speaker are physically electrically realized as two loudspeakers in parallel to double the output volume All signals undergo certain signal processing inside the Speakerbox The processing includes analogue to digital and digital to analogue conversion block USB codec conditioning amplification attenuation filtering sensing and switching The complete processing is programmable via ChangeMe software utility and can be dynamically changed during operation in the so called On Line operating mode SPEAKERBOX TECHNICAL OVERVIEW TIPRO B 2 B INTEGRAL PARTS AND FUNCTIONALITY euoudoJor xoeuesooc
13. eck Microphone egen D 2 E ORDERING CODES E 1 BU e saer E EE E 1 E 2 Stand Alone Version Configuration ssssesessssesesssressressresseesseetssereseressressressee E 2 F REFERENCES f anna eE EE EEEE EE EEEREN EES F 1 G NOTICES EE G 1 L RE G 1 CMM Copyright IN CG Pc G 1 SPEAKERBOX TECHNICAL OVERVIEW A GENERAL INFORMATION A 1 A GENERAL INFORMATION The Speakerbox also referred to as InterCom is a member of the modular FREE FREE BeFREE also referred to as FREE product family It is a USB audio device for hands free bidirectional voice communication which can be combined with the other family members into multifunctional consoles for various applications Besides the primary function i e hands free voice communication it also provides connection for an external analogue headset and handset as well as a digital control over all audio devices HandsFree Headset and Handset that share the same audio channel The Hands Free audio device comprises a Voice Speaker and a goose neck microphone along with an incremental encoder for volume control a bar graph multicolour LED indicator and two function keys MIC key and HF key Two more keys are provided for immediate loudspeaker volume control of the external headset and handset As a stereo audio device the Speakerbox also incorporates another speaker so called Alert Speaker which is intended for alarm alert messages from
14. f the Handset Headset amplifier orange colour or the gain of the Hands Free amplifier green colour By default it constantly operates as a VU meter If a rotation of the incremental encoder has been detected it automatically displays the gain of the Hands Free amplifier If a press of Volume Up or Volume Down key has been detected it automatically displays the gain of the Handset Headset amplifier B 6 Incremental Encoder This is an endless digital potentiometer used for immediate volume control of the Voice and Alert Speakers It has 24 detents per revolution Every single detent changes the volume for one step up or down but only every second one is represented by one LED in the Bar Graph display in green colour B 7 Mechanical Keys with LED Indicators All six keys are regular programmable keys but four of them HF key MIC key Volume Up key and Volume Down key have also additional predefined functions The HF key controls the Hands Free operation see Chapter C 2 The internal LED is illuminated while the hands Free mode is active The MIC key controls the Goose neck microphone see Chapter C 2 The internal LED is illuminated while the microphone is active The Volume Up and Volume Down keys control the gain of Handset Headset loudspeaker amplifier B 8 External Headset Connection The external headset to be connected to the Speakerbox can be any analogue headset with an electret condenser microphone and a dynamic lo
15. h integrated Tipro USB controller TM FMx operating as a generic HID Keyboard Device and optionally as an HID Telephony Device see Chapter D 1 audio interface USB operating as a generic USB Audio Device power connectors Tipro Power bus connector 10 pin Micro MaTch receptacle female on the PCB to power Speakerbox from Powered FREE 15 Touchmonitor or BeFREE 15 Touchcomputer gt Audio amp Power connector RJ 8P 8C in the bottom part of the housing to power Speakerbox from an external 12V Power Supply see Chapter B 10 interface connectors left hand side Tipro bus connector 6 pin Micro MaTch header male at the end of a 100 mm long ribbon cable gt right hand side Tipro bus connector 6 pin Micro MaTch receptacle female on the PCB gt Audio amp Power connector RJ 8P 8C in the bottom part of the housing see Chapter B 10 SPEAKERBOX TECHNICAL OVERVIEW TIPRO A GENERAL INFORMATION A 5 MECHANICAL casing plastic ABS black colour C15 net dimensions 138 x 222x 51 without goose neck microphone W D H mm gross dimensions with side covers 158x 222x 51 W D H mm goose neck microphone length height 350 50mm weight 700 g approximately protection sealing grade IP 30 according to EN 60529 ENVIRONMENTAL operating ambient temperature range 0 C to 40 C storage ambient temperature range 10 C to 50 C relative humidity
16. integrated into another module e g a touchcomputer or a touchmonitor module within the same modular configuration Alternatively for a stand alone application a special variant of the module with integrated controller TM FMx is also available see Chapter B 12 A 1 Highlights APPLICATIONS dispatcher terminals banking amp trading consoles multifunctional control panels digital telephony e g Voice over IP devices CONCEPT AND MODULARITY ergonomic hands free voice communication device combination of a USB audio device and an HID keyboard plug amp play operation with generic USB audio and USB HID keyboard drivers optional emulation of HID Telephony device 9 9 optional acoustic echo cancellation circuitry with a digital signal processor echo canceller configurable switching between the hands free and external analogue audio devices separate output for alarm alert tones messages integrated acoustic shock protection 9 9 9 external analogue audio devices handset and headset effectively converted into the corresponding digital USB devices SPEAKERBOX TECHNICAL OVERVIEW TIPRO A GENERAL INFORMATION A 3 combinable with other FREE add on modules e g handsets touchcomputers touchmonitors keypads into multifunctional terminals stand alone operation as a FREE module with integrated Tipro USB controller PROGRAMMABILITY all implemented audio functions are pr
17. nect Handset Connect Handset Send On Hook key event Send Off Hook key event Handset Off Hook Headset unit disconnected J SH HAN DSET NC Connect Handset Disconnect Headset ZS Send Headset Disconnected key event SC LOC me PTT key Ee H 5 Send PTT pressed key event PTT key released Send PTT released SS event Headset unit connected Disconnect Handset Disconnect Gooseneck Mic Peur Disconnect LS Connect Headset Note Key events MIC key pressed MIC key released On Hook Off Hook PTT pressed Send Headset Connected key event PTT released Headset connected Headset disconnected HF key pressed HF key released are sent via USB regardless of the current state Figure C 1 Speakerbox State Diagram Off Line Operating Mode SPEAKERBOX TECHNICAL OVERVIEW C OPERATION C 2 C 2 Operating Modes Off Line is the default mode where the operation is controlled from within the module applying the parameters settings previously defined by ChangeMe programming utility As represented in the state diagram Figure C 1 the Speakerbox can remain in one of the three possible states HANDSFREE HEADSET or HANDSET Since the headset is the highest priority audio device the default state is HEADSET if an external headset is connected The lowest priority state is HANDSFREE Arrows in the state diagram define possible transitions between the st
18. ogrammable six programmable mechanical keys VERSATILITY user configurable predefined operating mode Off Line dynamically controlled operation by the application software On Line keys with dedicated hardware function and or programmable keys LED indicators with dedicated hardware function and or programmable indicators A 2 Terminology As the Speakerbox is a rather complex audio device certain terms need to be clearly defined in order to avoid misunderstanding The following definitions do not necessarily represent generally accepted technical facts but merely a nomenclature explanation in order to help understand the document properly audio device a device comprising a transducer to turn an electric signal into a sound loudspeaker as well as a transducer to turn a sound pressure into an electric signal microphone both along with the associated electronic circuitry mono audio device an audio device comprising one loudspeaker and one microphone same as audio device stereo audio device an audio device comprising two loudspeakers left and right and one microphone audio output output audio signal of a computer to be connected to the Speakerbox it is input signal to the Speakerbox audio input input audio signal of a computer to be connected to the Speakerbox it is output signal of the Speakerbox audio channel a pair of one input and one output audio signal ad
19. range 20 to 80 non condensing AUDIO Loudspeakers gt two in parallel within the left output gt two in parallel within the right output gt type dynamic gt rated power 2 W gt output sound pressure level SPL 85 dB x 3dB 1 W 1 kHz 0 5 m distance Goose neck Microphone gt type electret condenser unidirectional max input 120dB SPL Analogue amplifiers gt designed to meet wide band IP telephony standards gt frequency pass band 100 Hz 8 KHz Typ gt output power 4x 1 W 2x2x I W USB Audio Codec model Texas Instruments PCM 2902x USB Interface full speed resolution 16 bit Delta Sigma ADC and DAC sampling rates ADC 8 11 025 16 22 05 32 44 1 48 kHz gt sampling rates DAC 32 44 1 48 kHz recommended data format 16 bit rather than 8 bit stereo rather than mono SPEAKERBOX TECHNICAL OVERVIEW TIPRO A GENERAL INFORMATION A 6 MECHANICAL KEYS keyswitch model Cherry MX gt key travel 3 6mm to 4 0mm total 2 0 6 mm pretravel gt actuating force 60 20 cN gt reliability Mean Cycles To Failure MCTF 1 billion 10 press release cycles 50 million is guaranteed minimum keycaps gt construction separate body and cover gt size single keycap bodies with cut out for LED CN15 black colour keycap covers transparent gt key legends pictograms printed on a transparent paper undern
20. s below the threshold are removed inside the amplifier so with a higher threshold the microphone needs to be used closer to the mouth and speech needs to be louder to get through the amplifier The compression feature enables compression of the output signal dynamics in order to minimize the difference between soft low and loud speech The amplifier is also capable of limiting extremely loud speech thus preventing distortion and popping The overall gain can be even lower than one i e attenuation as well as equal to zero i e totally muted input The Hands Free device comprises an additional microphone preamplifier to provide for adjustment of the goose neck microphone range B 2 Handset Headset Amplifier This is a linear audio amplifier with programmable gain that drives the loudspeaker of the currently active external audio device either Headset or Handset It is also a summing amplifier that can add a part of the microphone signal to the output signal for the loudspeaker so called side tone feature The side tone feature is essential to the user of the Handset Headset as it provides an immediate without a delay audio feedback The side tone level is also programmable The gain of this amplifier i e volume of the loudspeaker inside handset and headset can be adjusted by the user in normal operation via two mechanical keys Volume Up and Volume Down at the front left hand side of the module The selected level is immediately di
21. splayed at the bar graph display in orange colour 10 volume levels mute B 3 Hands Free Amplifier This is a linear audio amplifier with programmable gain that drives the Voice Speaker The gain of this amplifier i e volume of the Voice Speaker can be adjusted by the user in normal operation via the incremental encoder i e endless digital potentiometer at the front right hand side of the module The selected level is immediately displayed at the bar graph display in green colour 20 volume levels mute The amplifier can deliver up to 2 W 2x 1 W of electric power to the Voice Speaker SPEAKERBOX TECHNICAL OVERVIEW TIPRO B INTEGRAL PARTS AND FUNCTIONALITY B 4 B 4 Alarm Alert Amplifier This is a linear audio amplifier with programmable gain that drives the Alert Speaker The gain of this amplifier is normally equal to the gain of the Hands Free amplifier but it can also have a separate response characteristic to the position of the incremental encoder This way for instance the Alert Speaker can be held at a constant volume level while increasing decreasing volume level at the Voice Speaker The amplifier is capable to deliver up to 2W 2x 1 W of electric power to the Alert Speaker B 5 Bar Graph Display It comprises 10 three colour red green and orange LEDs to display the level of the left output signal and the level of the microphone signal a sum of the two as VU meter red colour or the gain o
22. tes a Tipro USB controller with a built in bus powered hub one downstream port is occupied by the Tipro controller another one with the USB Audio Codec Handset Keyboard Speakerbox TM HUA TM KMX TM FMU bus slave bu n USB HUB USB Audio USB Audio Device Device USB cable to PC USB cable to PC To external power supply Figure B 7 InterCom Configuration with TM FMU Stand Alone Module Figure B 7 presents a block diagram of the Stand Alone Speakerbox when integrated into a typical modular InterCom configuration i e a configuration without a touchcomputer touchmonitor module The block diagram of the Add On Speakerbox 1s shown in Figure B 8 along with other modules in a representative Terminal Console configuration i e a configuration comprising a touchcomputer touchmonitor module SPEAKERBOX TECHNICAL OVERVIEW TIPRO B INTEGRAL PARTS AND FUNCTIONALITY B 8 Handset Keyboard BeFREE 15 Speakerbox Chameleon TM HUA TM KMX BF15 TM FSU TM LRX Tipro Bus Tipro Bus Tipro Bus Tipro Bus Tipro Bus Tipro Bus Module Module Module Module Module bus slave bus slave bus slave bus slave USB port USB Audio MAINBOARD US port Device Internal power supply USB port USB port USB cable To external USB cable power supply Figure B 8 Terminal Console Configuration with TM FSU Add On Module SPEAKERBOX TECHNICAL OVERVIEW C OPERATION C 1 C OPERATION C 1
23. udspeaker providing that the SPEAKERBOX TECHNICAL OVERVIEW TIPRO B INTEGRAL PARTS AND FUNCTIONALITY B 5 audio connector matches the connector of the Tipro analogue handset see Figure B 3 and Reference 1 The respective connector is accessible from the rear side of the module and is labelled by a pictogram see Figure B 4 PIN 1 MIC PIN 2 SPK PIN 3 SPK PIN 4 MIC Figure B 3 External Handset Headset Connector and Respective Signals B 9 External Handset Connection The external handset can be any of the standard Tipro analogue handsets e g TM HHA 6A see Reference 1 with PTT PTM key PTT is acronym of Push To Talk PTM of Push To Mute The respective connector is accessible from the rear side of the module and is labelled by a pictogram see Figure B 4 Handset Connection Headset Connection Figure BA Speakerbox Rear View External Audio Device Connections B 10 External Digital Inputs The external handset and headset connections can be alternatively used as digital inputs for an external PushToTalk switch pedal The respective analogue microphone inputs between PIN 1 positive polarity and PIN 4 negative polarity can accept galvanically isolated contact normally open of a mechanical switch or an opto isolator collector to PIN 1 emitter to PIN 4 as shown in the Figure B 5 SPEAKERBOX TECHNICAL OVERVIEW TIPRO B INTEGRAL PARTS AND FUNCTIONALITY B 6

SPEAKERBOX

Contents

Download Pdf Manuals

Related Search

Related Contents