Detailed Product Description

DVR-3021
1 CH Stand-Alone Digital Video Recorder System with Network Function

Built-in Hot Swappable Removable HDD tray
Features:
Non-PC based DSP hardware with proprietary system firmware.
Full triplex operation allows live viewing/ video recording/ playback and network access
simultaneously.
Pre-alarm image recording.
Refresh rate up to 60 FPS(NTSC) or 50 FPS(PAL) per channel.
Compression: Motion JPEG.
Quick search. 
Fast and slow playback of recorded video at various speeds.
Single-picture playback.
Remote control via the RS-232, RS-485 and Ethernet ports.
Motion detection.
Auto power interruption recovery. 
Remote viewing of live and recorded images through TCP/IP network environment.
Audio function included (16 bits, 11 / 22 kHz, £g-law).
Built-in SD memory card slot to save JPEG/AVI image(s) to an SD memory card.
Daylight saving setting.
Controls multiple brand Pan/Tilt/Zoom cameras through network and RS-485.