Dahua VTH5221D User Manual

Foreword IV
Foreword
General
This document mainly introduces function, structure, networking, installation process,
debugging, UI operation and technical parameter of digital VTH products matched with version
4.2 UI interface.
Models
Type
Model Series
Specific Model
Digital
VTH
VTH5221 series
VTH5221DW, VTH5221D, VTH5221DW-C, VTH5221D-C,
VTH5221E-H, VTH5221EW-H
VTH5241 series
VTH5241DW
VTH15
series
Type A
VTH1520A, VTH1520AS-H, VTH1520AH, VTH1520AS
Type B
VTH1550B, VTH1560B(W)
Type
CH
VTH1510CH, VTH1520CH, VTH1550CH, VTH1550CHM
VTH16 series
VTH1660CH
VTH2X series
VTH2221A
2-wire VTH
VTH1550CHW-2, VTH5222CH
Device Upgrade
Please don’t cut off power supply during upgrade. Power can be cut off only after the device
completes upgrade and reboots.
Safety Instructions
The following categorized signal words with defined meaning might appear in the Manual.
Signal Words
Meaning
Indicates a high potential hazard which, if not avoided, will result in
death or serious injury.
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
Indicates a potential risk which, if not avoided, could result in property
damage, data loss, lower performance, or unpredictable result.
Provides methods to help you solve a problem or save you time.

Dahua VTH5221D Specifications

General

Brand	Dahua
Model	VTH5221D
Category	Intercom System
Language	English