Model

YW904NC

Video compression

H.264

Video Signal

PAL/NTSC

Video input

4 channels 1080P

Video Resolution

CIF, Half D1,D1,720P

Frame rate

PAL:1-25 fps 

NTSC:1-30 fps

Video output

4-CH 1080P video input,1-CH VGA output,2-CH BNC output,1-CH HDMI output

Audio

Audio compression

G.711(G.722 for talkback)

Audio Input

4-CH Audio Input via Internet, 1-CH Mic. Input

Audio output

A:1 channels HEADPHONE 3.5 mm

B:2 channel LINE OUT (BNC)

Audio output bite rate

8KHz/64Kbps

Alarm

Alarm Type

External sensor, Video lost, Motion detection, Video shield, HDD error, Unauthorized user access detection, No HDD notification, HDD lost alarm

Alarm Linkage

Buzzer, Snapshot and video recording, email notification, External Alarm output

Alarm input

16 channels input

Alarm output

4 channels output

Pre-recording

Support

Interface

Communication Interface

RJ45,RS232,RS485

USB interface

2 USB interfaces: one for USB flash /USB HDD; the other for USB mouse 

SATA interface

8pcs SATA hard disks, one of which is for e-SATA

Network

Protocols

TCP/IP,HTTP,UDP,DHCP,PPPOE,UPNP,FTP,DDNS,DNS

DDNS

Built-in DDNS client, Support 3322,Dyndns,CamanyWhere

Upgrading

Support remote firmware upgrading via internet, or local upgrading through USB

Security

Multi-level user access with password protection

Max. User

2 real-time user for each channel (simultaneously)

General

Power supply

AC220V  50Hz

Power consumption

44W (Without HDD)

Working temperature

-10°C ~ +55°C   

Working humidity

<85%

Dimension

Product: 440*456*88 mm      

Package: 520*550*185 1 pc/box

Net weight

7.1kg(Without HDDs)