Dahua Technology VTH2421FW-P - Alarm Port; Function; Wi-Fi Networking; Video;Voice Call

1.2.12 VTH8641K/VTH8642K Series
Figure 1-27 Rear panel
Table 1-15 Rear panel description
No.
Port
1 RS-485 and power output port
2 Alarm port
3
●
8641K: Power input port
●
8642K: 2-wire port
4 Network port
24