dahua Original security nvr 4 Channel 4K Network Video Recorder

System

Main Processor

Quad-core embedded processor

Operating System

Embedded LINUX

Aduio and Video

IP Camera Input

4/8/16 Channel

Two-way Talk

1 Channel Input, 1 Channel Output, RCA

Display

Interface

1 HDMI, 1 VGA

Resolution

HDMI: 3840×2160, 1920×1080, 1280×1024, 1280×720

VGA: 1920×1080, 1280×1024, 1280×720

Decoding Capacity

2ch@4K(30fps)/8ch@1080P(30fps)

Multi-screen Display

4CH: 1/4

8CH: 1/4/8/9

16CH: 1/4/8/9/16

OSD

Camera title, Time, Camera lock, Motion detection, Recording

Recording

Compression

Smart H.265+/H.265/Smart H.264+/H.264

Resolution

8Mp/ 6Mp/ 5MP/ 4MP/ 3MP/ 1080P/ 1.3MP/ 720P etc.

Record Rate

80Mbps

Bit Rate

16Kbps ~ 20Mbps Per Channel

Record Mode

Manual, Schedule (Regular, Continuous), MD (Video detection: Motion Detection, Tampering, Video Loss), Stop

Record Interval

1 ~ 120 min (default: 60 min), Pre-record:

1 ~ 30 sec, Post-record: 10 ~ 300 sec

Video Detection and Alarm

Trigger Events

Recording, PTZ, Tour, Video Push, Email, Snapshot, Buzzer and Screen Tips

Video Detection

Motion Detection, MD Zones: 396 (22 × 18),

Video Loss and Tampering

Alarm input

N/A

Alarm output

N/A

Playback and Backup

Playback

4CH: 1/4

8CH: 1/4/9

16CH: 1/4/9/16

Search Mode

Time /Date, MD and Exact Search

(accurate to second), Smart search

Playback Function

Play, Pause, Stop, Rewind, Fast play, Slow Play,

Next File, Previous File, Next Camera, Previous Camera, Full Screen, Backup Selection, Digital Zoom

Backup Mode

USB Device/Network