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![](https://files.manualsfile.com/91658739-vth8641kms-wp/bg19.png)
1.2.9 VTH8621K/VTH8622K Series
Figure 1-21 Rear panel
Table 1-11 Rear panel description
No. Port
1 Alarm port
2 RS-485 and power output port
3
●
8621K: Power input port
●
8622K: 2-wire port
4 Network port
18
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