Dahua VTH2221A Quick Start Guide

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VTH15XX-S2 type CH series Figure 1-3
In VTH15XX-S2 type B series, different types of digital VTH have different port positions, but
the same port provides the same function. Taking VTH1560B-S2 as an example, specific
functions of ports are introduced, as shown in Figure 1-4.
VTH15XX-S2 type B series Figure 1-4
In VTH15XX type CH series, different types of digital VTH have different port positions, but the
same port provides the same function. Taking VTH1550CH as an example, specific functions of
ports are introduced, as shown in Figure 1-5.
VTH15XX type CH series Figure 1-5
In VTH15XX type B series, different types of digital VTH have different port positions, but the
same port provides the same function. Taking VTH1560B as an example, specific functions of
ports are introduced, as shown in Figure 1-6.
VTH15XX type B series Figure 1-6

Dahua VTH2221A Specifications

General

Brand	Dahua
Model	VTH2221A
Category	Intercom System
Language	English