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![](https://files.manualsfile.com/91658739-vth8641kms-wp/bg16.png)
No. Port
2 Power port
3 Network port
4 Alarm port
Figure 1-17 RS-485 extended port
1.2.7 VTH5421H/VTH5422H Series
Figure 1-18 Rear panel
15
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For VTH2622G-W.
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