Feature:

  Adopt proffesinal embedded operating system(RTOS), solve the problem of virus and system-collapse thoroughly.
Support 2CH real-time recording(25FPS each channel) and 2CH synchronous audio-record.
Support circulating record
Support file backup.
Adopt G.722 compression format for audio and the copressed bit rate is 3KB/S/C
the Max real-time display resolution can reach 704*576(320-550 TVline). Record resolution is 352*288(220-320 TVline)
MPEG4 compression arithmetic for video, and the average compressed bit rate is 16-144KB/S for ezch channel.
Audio-monitor, provide multi-images monitoring for video(TV output and support 1 or 2 imgages display which can be switched at will).
Press Control-keyboard or infrared remote-control to operate GUI and the system.
The record types are selectable for each channel( Manual Record, Time Record, Alarm Record)
Recording situation can be easily searched (no need to stop recording)
1)Search by time/date;
2)FFW or FBW the recorded file at different speed
3)Single-frame playback
Convenient operation, DVR can record or play in response to the remote-controllor or the control-keyboad even without the main menu display.
Both server and client side can monitor the image without HDD in DVR.
Support data transmission in LAN and MAN.
Provide password restriction, log check etc., enable the system safe and reliable.
Support one HDD of any capacity(common HDD or portable computer HDD) a mobile rack is also provided to put the HDD.

 

ADS-4402(2CH STAND-ALONE DVR)

Operation system

RTOS(Psos)

Power supply

Standard ATX power(AC:12/24V±10%)

Work temperature

0-55

Work humidity

< 80%RH

Power consumption

20Wnot include HDD

Dimension

162×110×295mm

Weight

3.5KG(not include HDD)

Video

Compression:MPEG4

Display frame speed:25F/S

Record frame speed:25F/S,can be adjusted

Display resolution:704×576320550TVL

Record resolution:352×288220330TVL

Input interface:2ch BNC Vp-p=1.0V/75Ω

Output interface:1ch BNC

Output bit rate:128kbps 1152kbps/ch

Audio

Compression:G.722

Input interface:2ch RCA

Output interface:1ch RCA

Output bit rate:3Kbps

Alarm

4ch input/2ch output

Search mode

YY/MM/DD,HH/MM/SS

Bus-controller

RS485

HDD interface

IDE interfacesupport 1 HDD,any capability is available

Network

10/100M EthernetLANMAN

P/T/Z

support

System upgrade interface

Serial portRS232)、10/100M Ethernet interface

MTBF

25000 hours