FDAT-EN2 Users Manual - Alf-Tech
Contents
1. E Le e ETTITITTIITIT Sla 5 2 o a n z S 2 MO ooo MoMa 3 A SUOFAUUCS Ltd z y y joueq 1204 nomes i 5 eued UOJ4 8 S 3 3 jeued seay lt q N dde LS E 1S ZL S L OW Es zen o ava ie OO era i LOVLINOD 9x H PWOO Mr XINFIOHd e puepue3s se pepnjoul A S10399UU05 M 19S Ul N d LL jaued ju0J4 TOU io T ZS Ak Z 3 8 313 e 3 o z AM A jeued 1294 lt AUS VEMOI i S jeued ju0J4 n c pre z du 3 E 3 al c eued Jesy iJ vo lt 4 HES o H931471 beer Tee L8 E LS ZL S L OW L8 LS ZIS L OW wel NA xa AVG PC OO LOVLNOO vx LOVLNOD zx TU E wr Omr XINJOHd XINJOHd 2 u psepue s se pepnjoul S e joued u014 SJ03 99UU09 M919S ul Bnid Es al A LL Copyright 2005 Alf Electro Technical Services CC All rights reserved2. FIBRE DIGITAL AUDIO TRANSCEIVER A A A U eich anual OBSERVE HANDLING PRECUATIONS Electrostatic Sensitive Devices Electrostatic Discharge The product can be damaged by electrostatic discharge thus care must be taken when handling the product Failure to observe proper handling and installation procedures can cause damage Electrostatic Discharge damage can range from performance degradation to complete product failure Important Safety Instructions Please follow these precautions when using this product Read these instructions Keep these instructions Heed all warnings Follow all instructions WATER AND MOISTURE Designed for indoor use only The product is not protected against liquids It should not be exposed to dripping or splashing and no objects filled with liquids shall be placed on the product INSTALLATION The product must always be installed by qualified service personnel Install in accordance with the manufacturer s instructions Always disconnect the supply power before installing the product Do not install near any heat sources such as radiators heaters or other apparatus that produce heat POWER SOURCES The product should be connected to a power supply only of the type described in the operating instructions or as marked on the unit SERVI CING Contains no user serviceable parts Do not attempt to repair the product as this will void the warranty FUSING Never bypass or use any oth
3. Somerset West PHOENIX Contact Connectors SuPelied with the DAPP EN2 4 7129 CAPE s n e South Africa Physical Layout and Dimensions 5 FDAT EN2 5 www alftech com FDAT EN2 A 6 Introduction RL ee ee eS ee Product Overview Fibre Digital Audio Transceiver FDAT TX EN2 the FDAT Transmitter The FDAT TX transmits 2 audio optionally 4 and 24 digital inputs to the FDAT RX Receiver via a fiber optic cable The Transmitter receives balanced audio inputs and converts it to digital format This digital signal is combined with the 24 digital inputs and then transmitted via fibre optic cable to the Receiver The digital inputs are active LOW As an example the Inputs can be connected to relay outputs or directly to Front Panel ea oe ee it EE 4BQO 140B A svvitches F 0d8 OO 48 FDAT TX AN The LED level indicator can be non he ALETECH used to set the input audio to GE Ee the appropriate level to prevent overdriving the analog to digital converters The audio inputs has another 7 dB headroom from the time when the RED O dB LED lights SRE up before the audio output on LGL the FDAT RX Receiver will clip The OdB LED corresponds to 4dBu Rear Panel 4 OUTPUT Connections 12 AAA AA RAA AAA AA LI LI LI LI FDAT RX EN2 the FDAT Receiver The FDAT RX receives the data via the fibre optic and separates the audio data from the digital data The 2 audio signals optionally 4 Front
4. 4 e Optic Fiber input Receiver I ndicators e Power LED e Data SYNC LED Hardware Ordering Options Part Number Description Frame Mount form factor including all features as described above Select ST Fibre Connecter Standard or SMA Fibre Connector 2 additional audio channels FDAT EN2 ST A FDAT EN2 Transceivers Specifications 0 C to 55 C Recommended Operating Conditions PARAMETER CONDITION _ MIN TYP MAX UNITS NOTES V Supply Voltage 20 24 28 Signal Input Voltage 0 28 V Absolute Maximum Ratings Voltage on V Supply Relative to Ground OV to 34V Voltage on Signal input pins Relative to Ground 60 V to 60 V Operating Temperature 0 C to 70 C Storage Temperature 5 C to 55 C Exposure to absolute maximum rating conditions for extended periods of time may affect reliability Over the Operating Range MAX UNITS NOTES mA 1 Electrical Characteristics PARAMETER CONDITION Supply Current 24V DC TX Transmitter 24V DC RX Receiver Trigger input Current Input pulled to ground Trigger input resistance From 24V to trigger Trigger HIGH level Voltage Trigger LOW level Voltage Trigger input to output delay Relay output Current Transistor output pull down Audio Input and Output Level 0 dB LED turns ON Audio gain Input to output Audio headroom Audio sample rate Audio resolution Audio input impedance TX Transmitter differential Audio output impedance RX Receiver differentia
5. Panel are output via balanced line outputs The digital outputs EE A oo NNA No have a transistor pull down mesa por ex A output ECH If a relay is used it must be D connected between the output and the 24 V supply If the fibre is not connected or there is a fault with the FDAT TX SS transmitter the outputs will all ARAARA be off and the SYNC LED will KR be OFF The fault output line will be ON pulled LOVV in a fault condition Rear Panel Hardware Features e 2 channels balanced audio optionally 4 e 24 inputs to transistor pull down outputs e Line Fault transistor pull down output on FDAT RX Receiver e Audio level indicator for setup on FDAT TX Transmitter Functional Description The FDAT TX EN2 is an audio data fibre optic transmitter in a Frame Mount form factor Two audio channels and 24 digital inputs are transmitted to the FDAT RX Receiver The FDAT RX Receiver will indicate if a valid link is maintained and if not a fault output will be activated The audio will be muted and all outputs will be switched off Transmitter Connections e 24V DC supply input e 24 inputs e 2 Balanced audio line inputs optionally 4 e Optic Fiber output Transmitter I ndicators e Power LED e 5 Input level Indicator LED s Receiver Connections e 24V DC supply input e 24 pull down transistor outputs e System fault pull down transistor output e 2 Balanced audio line outputs optionally
6. cturing date of the product will be used to determine the warranty period 1 ALFTECH will repair or replace free of charge any part or parts of the Product that are defective but subject to the following conditions 1 1 Transportation charges on equipment and or parts submitted for repair or replacement under this warranty must by borne by the Purchaser Distributor Re seller and or End user 1 2 The warranty period begins on the date of purchase by the first retail consumer or commercial end user and continues for the period of two 2 years from that date 1 3 ALFTECH shall have the sole discretion whether to replace or repair the Product and the replacement Product shall be of equivalent or better specifications relative to the defective product but need not be identical 2 The warranty does not extend to repairs required because of 2 1 Problems caused by parts or systems that do not form an integral part of the Products 2 2 Equipment control use maintenance or installations that are not in accordance with instructions and manuals provided by ALFTECH for the product 2 3 the product is repaired modified or altered unless such repair modification is authorized in writing by ALFTECH or 2 4 the product serial number is defaced or missing 2 5 Normal use which has exhausted the life of the product 3 ALFTECH makes no warranty that the operation of its software products will be uninterrupted or absolutely error free and no warrant
7. e is not taken When a relay is disconnected while an output transistor is on and the relay has no diode directly connected to it the relay will generate a high voltage oscillation arcing over the point where contact was broken This reverse voltage will flow back to the transistor and can damage it Audio Inputs The audio receiver uses a differential line receiver IC for the balanced inputs For balanced inputs care must be taken to make sure the input impedance of the driver and cable is balanced Just a few ohms can degrade the common mode rejection ratio considerably If the inputs are driven by an unbalanced source the input must be connected to the HOT input and the COLD input must be grounded on the connector of the board The input must be balanced around the ground for best performance If the board and the source are both grounded the audio cable ground can be disconnected on the one end Shielded twisted pair cable is recommended for all applications The screen must still be connected on the other end This will avoid ground loops All equipment must always be grounded to the safety ground of the building Follow industry practices for proper system grounding of the cables Input Levels The LED display on the FDAT TX Transmitter can be used to set the input levels At any moment the input with the highest input level will be displayed When the OdB LED lit up the input level is 4dBu The input has another 7dB of headroom thus
8. er type of fuse Replace only with the same type of fuse as found in the operating instructions Fuses must only be replaced by qualified service personnel Always disconnect from power before replacing fuses Product User s Notice FR aa ee No part of this manual including the products and software described in it may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form or by any means except documentation kept by the purchaser for archiving purposes without the express permission of Alf Electro Technical Services CC ALFTECH ALFTECH provides this manual as is without warranty of any kind either expressed or implied including but not limited to the implied warranties or conditions of merchantability or fitness for a particular application or purpose In no event shall ALFTECH its members officers employees or agents be liable for any indirect special incidental or consequential damages including damages for loss of profits loss of business loss of use interruption of business and the like even if ALFTECH has been advised of the possibility of such damages arising from any defect or error in this manual or product Limited Warranty BEE No warranty registration is necessary to obtain warranty on ALFTECH products Please save your proof of purchase receipt If you do not provide proof of the initial purchase date at the time warranty service is requested the manufa
9. l Frequency response 0 3 dB Inter channel gain difference LED indicator accuracy ross talk 1kHz Total Harmonic Distortion 10dBu 1kHz i uU 3 gt L I L o L oO Ro m uU Notes 1 No audio input and all triggers off For every trigger another approx 5mA must be added 2 The current is the supply current through the 24 V supply line If all outputs are ON the supply current should increase by less than 10 mA This is because the relay outputs are pulled down thus the relay current goes through the GND terminal 3 The Signal input voltage should never be allowed to be between the maximum LOW level and the minimum HIGH level input voltage 4 Delay from when the FDAT TX Transmitter received a trigger input to until the FDAT RX Receiver s output switches ON or OFF 5 The relay outputs are in 3 banks of 8 outputs each If all 8 outputs per bank are ON permanently they are each allowed to draw only 125 mA Only use 24 V relays with a resistance of more than 200 ohm Each relay output has a 22 k pull up resistor and a protection diode connected directly to the 24 V supply 6 The input and output level are between the hot and cold terminals 7 Extra output level available before the output clips after the input level has reached the O dB level Thus the output will clip at 11 dBu Cautions The output transistors do all have diode protection but the outputs can still be damaged if car
10. me without notice and should not be construed as a commitment by ALFTECH ALFTECH assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual including the products and the software described in it Copyright 2005 Alf Electro Technical Services CC All rights reserved Product Name FDAT EN2 FDAT TX Transmitter FDAT RX Receiver Product User s Manual Printed February 2005 Contact Information PSS SSS SS SS ee Alf Electro Technical Services CC t a ALFTECH Corporate Headquarters Address Physical 30 Irene Ave Somerset West 7130 CAPE South Africa Address Postal PO Box 1718 Somerset West 7129 CAPE South Africa Telephone 27 21 852 5221 Fax 27 21 852 8111 E Mail info alftech com Marketing Sales amp Technical Support Telephone 27 21 851 7126 Fax 27 21 852 8111 E Mail info alftech com www www alftech com CONTENTS U gs M an ual I ntroduction 1 FDAT TX EN2 the FDAT Transmitter 1 FDAT RX EN2 the FDAT Receiver 1 FIBRE Hardware Features 2 Functional Description 2 Transmitter Connections 2 DI GITAL A UDIO Transmitter Indicators 2 Receiver Connections 2 T RANSCEIVER Receiver Indicators 2 A Hardware Ordering Options 2 Vom A L F T E C H FDAT EN2 Transceivers Specifications 3 AN Recommended Operating Conditions 3 l l Absolute Maximum Ratings 3 Alf Gg C C Electrical Characteristics 3 Reg No 5574 23 Cautions 4 PO Box 1718 Physical Connection 4
11. the signal will clip at 11dBu For best audio performance the input level must be kept as high as possible without clipping the signal The lower the signal the lower the signal to noise ratio SNR and thus the higher the distortion The LED S are for indication only and must not be used for level measurement Outputs The outputs are balanced and impedance matched The 2 outputs are both driven out of phase They are not floating like a transformer output If an unbalanced output is required connect the ground to ground and the signal to the HOT output Leave the COLD terminal open This will however give half the output level than a balanced output The outputs can easily drive the large Capacitive loads associated with long audio cables Electrostatic Discharge The inputs and outputs can be damaged by electrostatic discharge thus care must be taken when handling the boards Failure to observe proper handling and installation procedures can cause damage Electrostatic Discharge damage can range from performance degradation to complete hardware failure Physical Connection PHOENIX Contact Connectors PVPPlied with the DAPP EN2 The hardvvired connections to the FDAT EN2 are via sets of PHOENIX Contact 3 81 mm pitch connectors as shown in the following illustrations
12. y that all defects in the software product within or without the scope of ALFTECH s applicable product documentation will be corrected 4 This warranty does not extend to any Batteries if installed in the Product 5 This warranty does not extend to any equipment installation assembly or system for which the supplier or installer thereof provides a separate warranty in which event the End user have to exercise his right and claim against such a supplier or installer in accordance with such a warranty 6 This warranty does not extent to the installation setup and configuration of the Product for which the supplier and or installer are liable in their respective capacities Products and Corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies and are only used for identification or explanation and to the owners benefit without intent to infringe e Windows is a registered trademark of Microsoft Corporation e IBM is a registered trademark of International Business Machines e Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated e Corel is a copyright of Corel Corporation This product publication includes images from CorelDRAW 9 which are protected by the copyright laws of the U S Canada and elsewhere Used under License Specifications and Information contained in this manual are furnished for information only and are subject to change at any ti
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