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Dahua DH-SD49225I-HC-S3 - Page 3

Dahua DH-SD49225I-HC-S3
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3.1 Mounting Component and Dimension .............................................................................................. 12
3.2 Wall-mounted Bracket Installation Steps ......................................................................................... 13
3.2.1 Installation Environments .......................................................................................................... 13
3.2.2 Installation Steps ............................................................................................................................. 13
4 APPENDIX THUNDER PROOF AND SURGE PROTECTION (OUTDOORS) 16
4.1 Lightning Protection (Indoors) ............................................................................................................ 16
5 APPENDIX ABOUT RS485 BUS ................................................................... 18
5.1 RS485 Bus Main Feature ................................................................................................................... 18
5.2 RS485 Bus Transmission Distance .................................................................................................. 18
5.3 The Problem in Practical Use ............................................................................................................ 18
5.4 RS485 Bus FAQ .................................................................................................................................. 19
6 APPENDIX THE AC 24V WIRE DIAMETER AND TRANSMISSION
DISTANCE RELATION TABLE ................................................................................ 20
7 APPENDIX DC 12V WIRE DIAMETER AND TRANSMISSION DISTANCE
RELATION TABLE ................................................................................................... 21
8 APPENDIX V WIRE GAUGE REFERENCE SHEET ........................................ 22

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