Dahua Digital VTH Quick Start Guide

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 4
Figure 1-6
1.2.4 VTH5222CH/VTH5222CHW-2
Except different numbers of 2-wire port, VTH5222CH and VTH5222CHW-2 are the same in
other aspects. VTH5222CH has 1 group of 2-wire port, while VTH1550CHW-2 has 3 groups of
2-wire port. VTH5222CH is shown in Figure 1-7.
Figure 1-7
1.2.5 VTH1660CH
Its ports are described in Figure 1-8.
Figure 1-8
1.2.6 VTH2221A/VTH2221A-S2
Its ports are described in Figure 1-9.

Dahua Digital VTH Specifications

General

Brand	Dahua
Model	Digital VTH
Category	Intercom System
Language	English