User's Manual
2
to enable users to get target records quickly.
Cloud Upgrade
For the NVR connected to the Internet, it supports application online upgrade.
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.
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Shortcut menu for preview.
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Support multiple popular PTZ decoder control protocols. Support preset, tour and pattern.
Playback
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Support independent real-time recording for each channel. At the same time it supports
functions such as smart search, forward play, network monitor, record search and download.
●
Support various playback modes: slow play, fast play, backward play and frame-by-frame play.
●
Support time title overlay so that you can view the event accurate occurred time.
●
Support specified zone enlargement.
User Management
Users can be added to user groups for management. Each group has a set of permissions that can be
individually edited.
Storage
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With corresponding settings (such as alarm settings and schedule settings), you can back up
related audio/video data in the network video recorder.
●
You can take records via the web and the record files are saved on the PC in which the client
locates.
Alarm
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Respond to external alarm simultaneously (within 200 ms). Based on user’s pre-defined relay
settings, the system can process the alarm input correctly and sends user screen or voice
prompts (supporting pre-recorded audio).
●
Support settings of the central alarm server, so that the system can automatically notify users of
the alarm information. Alarm input can be derived from various connected peripheral devices.
●
Alert you of alarm information via email.
Network Surveillance
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Send audio/video data compressed by IPC or NVS to client-ends through the network, and then
the data will be decompressed and displayed.
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Support max 128 connections at the same time.
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Transmit audio/video data by protocols such as HTTP, TCP, UDP, MULTICAST and RTP/RTCP.
●
Transmit some alarm data or alarm info by SNMP.
●
Support web access in WAN/LAN.
Summary of Contents for NVR41-4KS2 Series
Page 1: ...Dahua Network Video Recorder User s Manual ZHEJIANG DAHUA VISION TECHNOLOGY CO LTD V1 1 0 ...
Page 74: ...User s Manual 58 Figure 2 79 Alarm input port Figure 2 80 Alarm input port ...
Page 101: ...User s Manual 85 Figure 3 41 Step 9 Secure the HDD bracket and put the top cover back ...
Page 132: ...User s Manual 116 Figure 4 19 Modify IP Step 3 Set parameters See Table 4 5 ...
Page 147: ...User s Manual 131 Figure 4 29 Period Step 3 Set record type See Figure 4 30 ...
Page 452: ...User s Manual ...