Dahua SD4E425GB-HNR-A-PV1 - Table of Contents

Table of Contents
Foreword........................................................................................................................................................................................................ I
Important Safeguards and Warnings.................................................................................................................................................III
1 Installation Preparation........................................................................................................................................................................ 1
1.1 Basic Requirements....................................................................................................................................................................1
1.2 Installation Check....................................................................................................................................................................... 1
1.3 Cable Preparation.......................................................................................................................................................................1
1.3.1 Video Cable Requirements......................................................................................................................................... 1
1.3.2 RS-485 Cable Requirements.......................................................................................................................................2
1.3.3 Selecting Power Cable..................................................................................................................................................2
2 Cables..........................................................................................................................................................................................................3
2.1 Cable Description....................................................................................................................................................................... 3
2.2 Cable Connection....................................................................................................................................................................... 4
2.2.1 Alarm Cable Connection..............................................................................................................................................4
2.2.2 Thunder-Proof Cable Connection............................................................................................................................5
3 RS-485 Cable.............................................................................................................................................................................................9
3.1 Basic Features...............................................................................................................................................................................9
3.2 Common Issues in Use..............................................................................................................................................................9
3.3 FAQ on RS-485 Cable.............................................................................................................................................................. 10
4 Wi-Fi Performance................................................................................................................................................................................11
5 Cable Diameter (24 VAC) and Transmission Distance.............................................................................................................12
6 Cable Diameter (12 VDC) and Transmission Distance............................................................................................................ 13
7 Cable Diameter (24 VDC) and Transmission Distance............................................................................................................ 14
8 Cable Diameter (36 VDC) and Transmission Distance............................................................................................................ 15
9 Cable Diameter (48 VDC) and Transmission Distance............................................................................................................ 17
10 Wire Gauge Reference Sheet.........................................................................................................................................................19
Appendix 1 Cybersecurity Recommendations........................................................................................................................... 20
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