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RRAS-MC/A1 IP microphone for rolling stock Operation manual Version 1.01 rras-mca1_g_en_101...
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RRAS-MC/A1 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 any obligation to inform about it. This document can be copied and redistributed under following conditions: 1.
RRAS-MC/A1 1. Introduction RRAS-MC/A1 is a noise-reducing microphone with Ethernet interface, intended for mounting into passenger areas. Device is supplied from factory only with loader. Before first use must be loaded an user application into device. Ethernet 100 Mbps interface Basic features ...
RRAS-MC/A1 2. Technical parameters Processor STM32F207 Internal FLASH memory 512 KB Internal RAM 128 KB EEPROM 2 KB Microphone Type Electret condenser Frequency range 50 Hz to 16 kHz Ethernet Number of lines Data transmission rate 10 / 100 Mbps...
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RRAS-MC/A1 Others Maximum ambient humidity < 95 % non-condensing Expected MTBF > 250 000 h Expected lifetime 15 years Components with reduced lifetime Software Device is supplied with loader, which enables software downloading by application RRAS Configurator via Ethernet line.
RRAS-MC/A1 2.2. Design of front panel RAL 9005 RAL 9006 Fig. 2 - Panel colour design 2.3. Recommended drawing symbol Following drawing symbol is recommended for RRAS-MC/A1 microphone. RJ45 Fig. 3 - Recommended drawing symbol for RRAS-MC/A1 9/18 rras-mca1_g_en_101...
RRAS-MC/A1 3. Conformity assessment The equipment meets the claims of Czech government decree NV616/2006; the conformity assessment has been performed in accordance with harmonized standard EN 50121-3-2:2006. Tested in accordance Type of test Classification with standard EN 55011:2009 Industrial, scientific and medical Complies equipment –...
RRAS-MC/A1 Electromagnetic compatibility (EMC) – EN 61000-4-11:2004 Complies Part 4-11: Testing and measurement techniques – Voltage dips, short interruptions and voltage variations immunity tests *) Some disturbing noise can be heard in the speaker when disturbances appear. 3.1. Other tests...
4.2. ALS indication LED Behind perforation of front panel are concealed the LED indicators, which allows the user an identification of device which communicates at given moment. Diodes blinks red, when the RRAS-MC/A1 unit recognizes its IP address within the Ethernet frame. rras-mca1_g_en_101...
RRAS-MC/A1 5. Ethernet Connector RJ45 for connecting the Ethernet interface is positioned on the cover rear side. Closer information about Ethernet factory settings can be found in chapter 6.1 Factory settings. Ethernet Fig. 5 - Location of Ethernet connector 13/18...
RRAS-MC/A1 6. Configuration All microphone parameters are configured through Ethernet interface. 6.1. Factory setting The microphone set is fitted with „RESTORE“ button to get into factory setting. This button is accessible at the cover upper side. To push the button use a tool (stick) with maximum diameter 1.5 mm.
RRAS-MC/A1 7. Mounting Microphone RRAS-MC/A1 is designed to mount into vehicle wall. Use M4 bolts with cylindrical head for fastening. Microphone can be mounted in any position. 54,0 61,0 Fig. 7 - Mounting aperture and holes for RRAS-MC/A1 7.1. Installation rules Earthing Connect the terminal PE on the microphone rear cover with vehicle frame.
RRAS-MC/A1 9. Maintenance Device requires no periodic control nor maintenance. Cleaning Time after time with regard to way of device usage, it is necessary to remove dust from inside electronics. The equipment can be cleaned by dry soft brush or vacuum cleaner, only when turned-off and disassembled.
RRAS-MC/A1 10. Waste disposal Electronics The disposal of electronic equipment is subject to the regulations on handling disposal electrical waste. The equipment must not be disposed off in common public waste. It must be delivered to places specified for that purpose and recycled.
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