TECHNICAL MANUAL FOR COMPACT VHF DSC RM2042

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2 INSTALLATION RM2042This mounting kit is used for console flush mounting of 1/4 box and mini 1/4 box.Free distance must be kept to allow free air circulation, ambient temperature max. 40°C.H2063min.160mm27580253mm240mm16mm4.5mm4.5mm16mm4 stk 6mm16mm4 stk 3.5mm uns for M3 DIN 963Cutting out 231x100mm16mm100mm113mmMounting kit H2063:VHF DSC RM2042:1.0 kg2.0 kg27444AWeight:4 pcs M3x308 pcs M5x8275814 pcs M5x30PAGE 2-4
2222 INSTALLATION RM20422.2 POWER SUPPLYThe standard power supply for the VHF DSC unit RM2042 is 12V DC.12V OPERATIONANTENNAFor 24V DC supply an external power supply with the type number N420 can be used. The N420 is inprinciple a 24V DC to 13.2V DC serial regulator.For 110V AC, 127V AC, 220V AC or 237V AC operation, an external power supply with the type numberN163S must be used together with N420.+ RED 2.5 mm2- BLACK 2.5 mm2ON/OFF BLUE 0.5 mmNOT USED WHEN 12VBATTERY SUPPLY2RM2042BLOCK DIAGRAM OF STRAPPING FOR 12V DCVOL ON/OFF2.3 HANDSETP3561423F12A D2 C4135246+13V INT.The handset is normaly connected directly to the VHF radiotelephone, but in a VHF DSC installation withthe RM2042, the handset must be connected to this unit instead.27769501260The handset can be placed anywhere near the VHF DSC unit RM2042.The cable for the handset is five-cored and must be connected to the rear of RM2042 by means of the9 pole SUB-D connector J1-1.Strap for connectionto external supply (12V)For installation of the cable, please see the drawings of the mounting brackets. The cable grommet mustbe placed in the most convenient groove in the mounting bracket.If more than one handset is needed, please see section 6, SPECIAL INSTALLATION WITH 2 OR 3MICROTELEPHONES.24V OPERATIONANTENNAN420RM20422.4 ANTENNAAll commen 50 antennas, which cover the used frequency range with a reasonable standing wave ratio,maximum 1.5, are usable.+24V DC-+ RED 2.5 mm- BLACK 2.5 mmON/OFF BLUE 0.5 mmThe antenna is connected to the set by means of a 50 coaxial cable with low loss, e.g. RG213U. At thecable end a PL259 plug is mounted.BLOCK DIAGRAM OF STRAPPING FOR 24V DCON/OFF CONTROL TO N420VOL ON/OFFThe antenna must be placed as high and clear as possible. The horizontal distance to metal parts mustbe at least one metre.S. P. Radio has an antenna with the necessary specifications available. The mentioned antenna ischaracterized by small external dimensions. For further details, see the special brochure VHF AERIALS.27770P3561423F12A D2 C41 23 45 6+13V INT.501259Strap for connectionto N420 (24V)PAGE 2-5
Page 1: TECHNICAL MANUALFORCOMPACT VHF DSC
Page 5: RM2042CONTENTS1 INTRODUCTION1.1 GEN
Page 9 and 10: RM20421 INTRODUCTIONThe RM2042 VHF
Page 11 and 12: 1 INTRODUCTION RM20421.2 TECHNICAL
Page 13 and 14: 1 INTRODUCTION RM2042LASTThis butto
Page 15: 1 INTRODUCTION RM2042MICROPROCESSOR
Page 19: RM2042CONTENTS2 INSTALLATION2.1 MOU
Page 22 and 23: 2 INSTALLATION RM2042H2067 MOUNTING
Page 27 and 28: 2 INSTALLATION RM20422.5 ELECTRICAL
Page 29: RM2042CONTENTS3 SERVICE3.1 MAINTENA
Page 32 and 33: 3 SERVICE RM20423.3 PROPOSAL FOR NE
Page 34 and 35: 3 SERVICE RM2042CHECK OF RECEIVER S
Page 36 and 37: 3 SERVICE RM2042CHECK OF TX AF DIST
Page 38 and 39: 3 SERVICE RM20423.6.3 ADJUSTMENT OF
Page 40 and 41: 3 SERVICE RM20423.9 NECESSARY ADJUS
Page 42 and 43: 3 SERVICE RM20423.10 PIN CONFIGURAT
Page 44 and 45: 3 SERVICE RM2042INTEGREATED CIRCUIT
Page 46 and 47: 3 SERVICE RM204271055/NEC & 82C55/O
Page 48 and 49: 3 SERVICE RM204274HC32 (SO-14 PACKA
Page 51: RM2042CONTENTS4 MECHANICAL DESCRIPT
Page 55: RM2042CONTENTS5 CIRCUIT DESCRIPTION
Page 58 and 59: 5 CIRCUIT DESCRIPTION AND SCHEMATIC
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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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