Dahua VTH5221D User Manual

Network Diagram 16
3.2 Digital System
Digital system network consist of two types:
 VTH adopts PoE power supply from floor switch, as shown in Figure 3-2.
Figure 3-2
 VTH adopts independent power supply from power supply device, as shown in Figure 3-3.

Dahua VTH5221D Specifications

General

Brand	Dahua
Model	VTH5221D
Category	Intercom System
Language	English