Dahua Technology VTH5421E Series - VTH5421 H Series

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1.2.7 VTH5421H Series
Figure 1-17 Rear panel
Table 1-9 Rear panel description
No. Port
1 Alarm port
2 RS-485 and power output port
3 Power input port
4 Network port
Figure 1-18 RS-485 port