DAHUA 4 CH DVR SPECIFICATION 

Main Processor

Embedded Processor

Operating System

Embedded LINUX

Video and Audio

Analog Camera Input

4 Channel, BNC

HDCVI Camera

1080P@25/30fps, 720P@25/30fps

AHD Camera

1080P@25/30, 720P@25/30fps

TVI Camera

1080P@25/30, 720P@25/30fps

CVBS Camera

PAL/NTSC

IP Camera Input

4+1: each channel up to 2MP

Audio In/Out

1/1, RCA

Two-way Talk

Reuse audio in/out, RCA

Recording

Compression

H.264

Resolution

1080N, 720P, 960H, D1, HD1, BCIF, CIF, QCIF

Record Rate

Main Stream:

4CH:1080N/720P/960H/D1/HD1/BCIF/CIF/QCIF (1~25/30fps)

Bit Rate

1Kbps ~ 6144Kbps Per Channel

Record Mode

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

Record Interval

1 ~ 60 min (default: 60 min), Pre-record: 1 ~ 30 sec, Post-record: 10 ~ 300 sec

Display

Interface

1 HDMI ,1 VGA

Resolution

1920×1080, 1280×1024, 1280×720, 1024×768

Multi-screen Display

When IP extension mode not enabled:

4CH: 1/4

When IP extension mode enabled:

4CH: 1/4/6

OSD

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

Network

Interface

1 RJ-45 Port (100M)

Network Function

HTTP, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPoE,DDNS, FTP, Alarm Server, P2P,IP Search (Support IP camera, DVR, NVS, etc.)

Max. User Access

128 users

Smart Phone

iPhone, iPad, Android

Interoperability

ONVIF 2.42, CGI Conformant

Video Detection and Alarm

Trigger Events

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

Video Detection

Motion Detection, MD Zones: 396 (22 × 18), Video Loss, Tampering and Diagnosis

Alarm input

N/A

Relay Output

N/A

Playback and Backup

Playback

4CH: 1/4

Search Mode

Time /Date, Alarm, MD and Exact Search (accurate to second)

Playback Function

Play, Pause, Stop, Rewind, Fast play, Slow Play, Next File, Previous File, Next Camera, Previous Camera, Full Screen, Repeat, Shuffle, Backup Selection, Digital Zoom

Backup Mode

USB Device/Network