TECHNICAL MANUAL FOR COMPACT VHF DSC RM2042

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1 INTRODUCTION RM20421.1 GENERAL DESCRIPTIONRM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042RM2042is a complete VHF receiver-modem, for digital selective calling on the VHF-channels.maintains a continous watch of the calling channel 70, by means of the build-in receiver.decodes and encodes all the messages applicable for a VHF Class A DSC-equipment, asprescribed by international authorities.is intended for use, both as a part of the safety system on board, as well as a convenientautomatic calling device ship/ship, ship/shore and when implemented from land telephonesubscriber to ship.can be connected to the C2149 GMDSS alarm unit, for remote control of distress calls.has an output for an external alarm unit, indicating reception of distress calls.has an NMEA0183-input, for direct connection to on-board navigational equipment, givingautomatic position update in DSC calls.can be connected to a standard line printer for print out of received messages and othervalueable informations.includes as a standard, an electronic memory message bank for different kinds of calls.includes a user programable quick-call register, not only for numbers, but for complete usercomposed DSC-calls.includes a real-time clock with battery back-up.uses a fully alpha-numeric LCD-display, for read-out of all kinds of messages in plainlanguage.supplies the user with a menu-guided programming interface, making it an easy task tocompose all kinds of calls.can be used for channel selection on your new Compact 2000 VHF transceiver.is housed in a corrosion resistant metal cabinet with a green nylon finish.can of course be used in a manual set-up, as a DSC-encoder, providing the connected VHFunitwith key information etc.PAGE 1-2
1 INTRODUCTION RM20421.2 TECHNICAL DATAComplies with IMO, ITU, CEPT and other national requirements.GENERALOperation: As CCIR Rec. 541-3Protocol:Printer Interface:As CCIR Rec. 493-4 asVHF Class A equipment.Parallel Centronics.Navigator Interface: NMEA 0183Power Supply: 12V DC -10% to +30%Power Consumption: Standby typ. 0.1AMaximum 0.4ATemperature Range:-20 C to +55 CDimensions: Height: 98mmWidth : 225mmDepth : 150mmWeight:App. 2kg.RECEIVER WITH DECODERReceiver frequency:Sensitivity:Spurious radiation:156.525MHz.Symbol error rate below0.01 at 0.25uV pd.Less than 2nW.ENCODERModulation:Output level:Tx key information:Programable encoderoutput delay:1700 Hz +- 400 Hz1200 Baud +- 30 ppmAdjustable between +-10 dBmin 600 ohms balanced output.Vcc or GND.1 mSec. to 255mSecs.PAGE 1-3
Page 1: TECHNICAL MANUALFORCOMPACT VHF DSC
Page 5: RM2042CONTENTS1 INTRODUCTION1.1 GEN
Page 9: RM20421 INTRODUCTIONThe RM2042 VHF
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Page 15: 1 INTRODUCTION RM2042MICROPROCESSOR
Page 19: RM2042CONTENTS2 INSTALLATION2.1 MOU
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Page 44 and 45: 3 SERVICE RM2042INTEGREATED CIRCUIT
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5 CIRCUIT DESCRIPTION AND SCHEMATIC
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RM2042CONTENTS6 MICROTELEPHONE INST
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6 MICROTELEPHONE INSTALLATION RM204
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RM20427 PARTS LISTVHF DSC RM2042 SA
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7 PARTSLIST RM2042POSITION DESCRIPT
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TECHNICAL MANUAL FOR COMPACT VHF DSC RM2042

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