Features
Multiplexer & Quad recording mode switching
Recording rate(NTSC):Up to full size 30 images/sec. or Quad size 120 images/sec.
Recording rate(PAL):Up to full size 25 images/sec. or Quad size 100 images/sec.
Wavelet compression format
4 CH DVR replaces Time-Lapse VCR + Multiplexer / Quad
On Screen Display and Remote Control via Video Server & PC
Picture-in-picture (PIP) in live
Alarm input & output function
Video Loss Detection on each channel can record up to 256 events
Support 1 HDD, IDE TYPE (over 250 GB)
 Quick multiple search by date/time, alarm and full list
Security password protection

Specifications MODEL DVR571 Video format NTSC/EIA or PAL/CCIR Hard disk storage IDE type, UDMA 66, supported over 250 GB HDD Recording mode Manual / Alarm / Timer Camera Input Signal Composite video signal 1 Vp-p 75Ω BNC, 4 channels Main Monitor Output Composite video signal 1 Vp-p 75Ω BNC Call Monitor Output Composite video signal 1 Vp-p 75Ω BNC Video Loss Detection Yes Refresh Rate 240 fields/sec. <NTSC> / 200 fields/sec. <PAL> Recording Rate Multiplex:Up to 30 fields/sec.< NTSC> / 25 fields/sec.<PAL> Quad-field:Up to 120 fields/sec.<NTSC> / 100 fields/sec.<PAL> Quad-frame:Up to 240 fields/sec.<NTSC> / 200 fields/sec.<PAL> Dwell Time Programmable  (1~15 Sec) Picture in Picture Yes (Movable) Key Lock Yes Camera Title 8 letters Video Adjustable Hue/ Color/ Contrast/ Brightness Adjustable Alarm Input TTL input, Hi (5V), Low (GND) Alarm Output COM./N.O/N.C Remote Control RS-232 or RS-485 Time Display Format YY/MM/DD, DD/MM/YY, MM/DD/YY, OFF Power Source AC90-220V, 47Hz~63Hz Power Consumption <32W Operation Temperature 10 ~ 40°C RS-232C / RS-485 (bps) 115200,57600,19200,9600,4800,3600,2400,1200 Dimension (mm) 343(W) x 223(H) x 59(D) Net Weight 2.52 kgs