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RRAS-MCT/D20 IP audio digitizer for rolling stock Operation manual Version 1.02 rras-mctd20_g_en_102...
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RRAS-MCT/D20 AMiT, spol. s r.o. does not provide any warranty concerning the contents of this publication and reserves the right to change the documentation without obligation to inform any body or authority about it. This document can be copied and redistributed under following conditions: 1.
RRAS-MCT/D20 Contents History of revisions ..................4 Related documentation ................... 4 Introduction ..................5 Technical parameters ................6 Dimensions ..................... 8 Recommended drawing symbol ..............8 Conformity assessment ..............9 Other tests ....................10 Manufacturer type plate ..............11 Power supply ..................12 Digital inputs ..................
RRAS-MCT/D20 History of revisions Document name: rras-mctd20_g_en_102.pdf Revision Date Author of change Changes 18. 6. 2013 Čeřovský L. New document 29. 7. 2013 Čeřovský L. Correction of Technical parameters (supply). 11. 9. 2018 Pokorný M. Chapter 2 – weight update Chapter 3 –...
RRAS-MCT/D20 Introduction RRAS-MCT/D20 is a IP audio signal digitizer, equipped with two audio inputs an one output for loudspeaker. Microphone RRAS-GNM/A can be connected stright to this digitizer. Device is supplied from factory only with loader. Before first use must be loaded an user application into device.
RRAS-MCT/D20 Technical parameters Processor STM32F207 Internal FLASH memory 512 KB Internal RAM 128 KB EEPROM 2 KB Microphone Type External, RRAS-GNM/A Microphone powering Phantom 3.3 V DC, software controlled Signal amplitude Max. 1 V pp. Powering ON: 1.8 kΩ Input impedance Powering OFF: 10 kΩ...
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RRAS-MCT/D20 Connection point WAGO769-668 Wire cross section 0.08 mm to 4 mm Mechanics Mechanical construction Sheet metal cover Color RAL 9005 Mounting To the base, M4 screws Ingress protection rate IP20 Netto – 0,84 kg ± 5% Weight Brutto – 1,10 kg ± 5% Dimensions (w ×...
167,6 186,6 204,6 45,2 Fig. 1 – RRAS-MCT/D20 dimensions Recommended drawing symbol Following drawing symbol is recommended for RRAS-MCT/D20. Only part of it will be visible in following examples. RRAS-MCT/D20 RJ45 AUX IN D-Sub DE-9 Fig. 2 – Recommended drawing symbol for RRAS-MCT/D20...
RRAS-MCT/D20 Conformity assessment The equipment meets the claims of Czech government decree NV117/2016; the conformity assessment has been performed in accordance with harmonized standard ČSN EN 50121-3-2 ed. 4. Tested in accordance Type of test Classification with standard EN 55016-2-1:2014...
RRAS-MCT/D20 Other tests This product was assessed and approved for use in railway applications according to standards: Tested in accordance with Type of test Result standard EN 50155:2007 Elecronic equipment used on rolling Complies stock Railway applications – EN 50121-3-2:2016 Complies Electromagnetic compatibility –...
RRAS-MCT/D20 Manufacturer type plate Type identification plate is placed on the top side of the unit. Identification plate’s information is summarized in the table below, for example of filled manufacturer type plate see Fig. 3. Description Value Note – AMiT logo Manufacturers logo –...
RRAS-MCT/D20 Power supply The IP audio digitizer RRAS-MCT/D20 can be powered by 24 V DC vehicle onboard network. Power supply terminals Fig. 4 – Power supply connector location Wiring RRAS-MCT/D20 example RJ45 24 V= AUX IN D-Sub DE-9 Fig. 5 – IP audio digitizer power supply wiring...
By coupling terminals AD1 and AD2 with common terminal COM is the input activated. The not-connected input is inactive. Wiring of X2 Terminal Label Signal type on RRAS-MCT/D20 connector Common terminal for digital inputs (inputs) Digital input 1 Digital input 2...
Microphone itself is not supplied together with audio digitizer, it must be ordered separately. RRAS-GNM/A microphone connector Fig. 7 – Location of connector for microphone Wiring of X4 Terminal Signal Signal type on RRAS-MCT/D20 LED button „A“ output connector LED A LED button „B“ output LED B MIC-...
Style of loudspeaker support depends on used application. Loudspeaker terminals Fig. 10 – Location of connector with terminals for external loudspeaker Wiring of X2 Terminal Label Signal type on RRAS-MCT/D20 connector Loudspeaker for silent monitoring - (loudspeaker) Loudspeaker for silent monitoring + RRAS-MCT/D20 Loudspeaker FR8WP8OHM (8 ...
RRAS-MCT/D20 Sound input To the IP audio digitizer can be connected a source of sound signal. Support of this input depends on used application. Sound input connector Fig. 12 – Location of connector for sound signal The sound signal is connected through standard BNC connector.
RRAS-MCT/D20 10 Ethernet The Ethernet interface connector is located on the audio digitizer front side. LED indicators are located next to Ethernet connector. Ethernet connector Fig. 13 – Location of Ethernet line connector Line status Activity of Ethernet line is indicated by LEDs (LNK and ACT) next to Ethernet indication connector.
RRAS-MCT/D20 11 Configuration 11.1 The RESTORE button Factory setting of IP audio digitizer is activated by pressing the button RESTORE on the front panel while unit powering is switched on. The small button can be pressed by blunt tiny stick like ballpoint refill etc. Release the buuton after triple LED blink.
RRAS-MCT/D20 12 Mounting IP audio digitizer RRAS-MCT/D20 is designed to mount into distributor. Unit is fastened by four M4 screws. 12.1 Installation rules Technical parameters of IP audio digitizer are warranted only when this wiring principles are applied. Earthing Connect the PE terminal of X2 connector to the vehicle frame with as low as possible impedance.
RRAS-MCT/D20 13 Ordering information and package contents 13.1 Ordering information Audio digitizer RRAS-MCT/D20 Package, see chapter 13.2. 13.2 Package contents Package Part Quantity Audio digitizer for rolling stock Connector counterpart WAGO769-108 Routine testing protocol Insulation testing protocol Certificate of product quality and completeness 13.3 Accessories...
RRAS-MCT/D20 14 Maintenance Device requires no periodic control nor maintenance. Cleaning Time after time, with regard to way of using it is necessary to remove dust from device. The equipment can be cleaned by dry soft brush or vacuum cleaner, only when turned-off and disassembled.
RRAS-MCT/D20 15 Waste disposal Electronics The disposal of electronic equipment is subject to the regulations on handling disposal electrical waste. The equipment must not be disposed of in common public waste. It must be delivered to places specified for that purpose and recycled.
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