Dahua NVR1A-4P Series, User Manual

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1 Features and Specifications
1.1 Overview
This series NVR is a high performance network video recorder. This series product support local preview,
multiple-window display, recorded file local storage, remote control and mouse shortcut menu operation,
and remote management and control function.
This series product supports center storage, front-end storage and client-end storage. The monitor zone
in the front-end can be set in anywhere. Working with other front-end devices such as IPC, NVS, this
series product can establish a strong surveillance network via the CMS. In the network system, there is
only one network cable from the monitor center to the monitor zone in the whole network. There is no
audio/video cable from the monitor center to the monitor zone. The whole project is featuring of simple
connection, low-cost, low maintenance work.
This series NVR can be widely used in many areas such as public security, water conservancy,
transportation and education.
1.2 Features
Cloud
Upgrade

For the NVR connected with the Internet, it supports online upgrade to
update applications.
Real-time
Surveillance

VGA, HDMI port. Connect to monitor to realize real-time surveillance.
Some series support TV/VGA/HDMI output at the same time.

Short-cut menu when preview.

Support popular PTZ decoder control protocols. Support preset, tour
and pattern.
Playback

Support each channel real-time record independently, and at the same
time it can support search, forward play, network monitor, record search,
download and etc.

Support various playback modes: slow play, fast play, backward play
and frame by frame play.

Support time title overlay so that you can view event accurate occurred
time

Support specified zone enlargement.
User
Management

Each group has different management powers that can be edited freely.
Every user belongs to an exclusive group.
Storage

Via corresponding setup (such as alarm setup and schedule setup), you
can backup related audio/video data in the network video recorder.

Support Web record and record local video and storage the file in the
client end.
Alarm

Respond to external alarm simultaneously (within 200MS), based on
user’s pre-defined relay setup, system can process the alarm input
correctly and prompt user by screen and voice (support pre-recorded
audio).

Support central alarm server setup, so that alarm information can
remotely notify user automatically. Alarm input can be derived from