Dahua D-SD22204-GC-LB, Instruction Manual

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V
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
1.3.3.1 Power Cable
.................................................................................................................. 2
1.3.3.2 PoE Power Cable .......................................................................................................... 3
2 Cables ..................................................................................................................................................... 4
2.1 Cable Description .......................................................................................................................... 4
2.2 Cable Connection .......................................................................................................................... 5
2.2.1 Alarm Cable Connection ...................................................................................................... 5
2.2.2 Thunder-Proof Cable Connection
....................................................................................... 6
2.2.2.1 Outdoor
.......................................................................................................................... 6
2.2.2.2 Indoor
............................................................................................................................. 8
3 RS-485 Cable ........................................................................................................................................ 10
3.1 Basic Features ............................................................................................................................. 10
3.2 Common Issues in Use .............................................................................................................. 10
3.3 FAQ on RS-485 Cable ................................................................................................................. 11
4 Wi-Fi Performance ............................................................................................................................... 12
5 Cable Diameter (24V AC) and Transmission Distance
.................................................................... 13
6 Cable Diameter (12V DC) and Transmission Distance
.................................................................... 14
7 Cable Diameter (24V DC) and Transmission Distance
.................................................................... 15
8 Cable Diameter (30V DC) and Transmission Distance
.................................................................... 16
9 Cable Diameter (36V DC) and Transmission Distance
.................................................................... 18
10 Wire Gauge Reference Sheet ........................................................................................................... 20
Appendix 1 Cybersecurity Recommendations ................................................................................... 21