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Foreword
General
This document mainly introduces function, structure, networking, installation process, debugging, UI
operation and technical parameter of digital VTH products.
Device Update
Do not cut off the 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
DANGER
Indicates a high potential hazard which, if not avoided, will result in
death or serious injury.
WARNING
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
CAUTION
Indicates a potential risk which, if not avoided, could result in property
damage, data loss, lower performance, or unpredictable result.
TIPS
Provides methods to help you solve a problem or save you time.
NOTE
Provides additional information as the emphasis and supplement to
the text.
Revision History
Version Revision Content Release Time
V1.0.1 Revised “Important Safeguards and Warnings”. December 2022
V1.0.0 First release. November 2020
About the Manual
The Manual is for reference only. If there is inconsistency between the Manual and the actual
product, the actual product shall prevail.
We are not liable for any loss caused by the operations that do not comply with the Manual.
The Manual would be updated according to the latest laws and regulations of related regions. For
detailed information, see the paper User's Manual, CD-ROM, QR code or our official website. If
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