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NVS440R User's Guide
1. Introduction
1.1. Overview
The NVS440R is a state-of-the-art 4-channel network DVR and A/V server. It is a culmination of standard A/V
codec technologies such as MPEG4 and ADPCM, embedded web server, embedded streaming server, various
network protocols and Hard Disk manipulation technology. NVS440R offers premium grade DVR and A/V
server. An example of such is simultaneous video recording, on-line streaming, and video playback which no
other version of DVR has ever done before. The NVS440R can be connected, controlled and monitored from a
remote location through an IP address. NVS440R can acquire various analog video data from CCTV cameras,
DVD, or TV tuners. Based on Embedded Software Solution the NVS440R ensures high performance and
stability and provides wide range of applications to the owners.
streaming mode which provides an ideal environment when low speed network is used for connecting
NVS440R. This feature assures high quality video recording on the HDD, while providing lower quality on-line
streaming data to connected user.
1.2. Features of NVS440R
" 4-channel real time Video/Audio streaming based on MPEG-4 video and ADPCM audio.
" 4-channel real time Video/Audio recording onto the built-in High Capacity Hard Disk Drive.
" 1-channel Full Duplex Audio between NVS440R and Client PC for two-way communication
" Viewer assisted recording and playback functions.
" 4 Alarm sensor inputs and 2 relay control outputs
" Motion detection – Up to 3 motion detection regions per channel. Motion detection can initiate video recording,
which has the option to be sent to the user through FTP and/or E-mail.
" Resolution :
" NTSC Video : 640x480(VGA) for one channel, 320x240(QVGA) for 4 channels.
" PAL/SECAM : 704x576 for one channel, 352x288(CIF) for 4 channels
" Remote Software Upgrade over Network
" Major features of DVR mode of operation
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Uninterrupted recording mode by overwriting when HDD is full
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Vast recording mode features (Manual, Scheduled, Event triggered)
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Fast and convenient video search mode (Calendar based, Search filters)
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System status display function including Date, Time, Storage mode, Remaining storage space.
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Alarm sensing (sensor and motion detection) and alarm recording.
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Powerful user interface program
Another advance of NVS440R is dual
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