System Mode
-Adopted high speed industrial-grade stand-alone digital signal processor, free from virus and instability, fast startup, and all the system parameters are saved in FLASH, won't lose while power off.
-Elegant design, more reliability and stability, ease for using and maintenance
Compression

-MPEG-2 Audio/Video Code/decode. Adopted compression/decompression chip, non-DSP compression processor, higher stability
-Fixed and flexible bit rate optional
Display
-4 channel Video input, 2channel Audio input.
-Support Full screen, Automatic switch, 2 channel, 4 channel display etc, 25f/s(PAL), 30f/s(NTSC) display speed for each channel, complete real-time, no time lapse.
-Brightness, contrast, hue, saturation and crisp of each camera adjustable. Unique image mirror function, reverse car surveillance function supported
-Title(up to 10 characters) for each channel can be set
Recording
-4 channel Audio/Video simultaneous record/display supported.
-High resolution DVD image quality, from CIF to D1 recording resolution supported, user-defined image quality supported, fixed and flexible bit rate optional.
-Display/Record simultaneously with Audio/Video, the highest frame up to 25 f/s/ch (PAL), 30 f/s/ch (NTSC),frame rate adjustable.
-Manual Recording in emergency, Schedule Recording, Alarm Recording, Motion Detection Recording and Pro-alarm Recording etc modes provided.
-Recording quality adjustable, 5 level standard image quality and 3 level user-defined image quality optional.
-Power-on automatically recording function supported.
Motion Dection

-Max.192 detection zones can be set up each channel
-Detection sensitivity can be set up for each channel
Storage
-Removable HDD design, 2.5" HDD supported
-Meet ATA-6 criterion, recording data on the HDD can be play directly through PC.
-Recorded file lock function supported, overwrite and stop recording when the HDD is fully occupied.
-Recording power-off protection function supported, automatically resume recording when power on again.
-Non-working HDD stand-by mode supported, reduce the heat and power consumption and extend the life-span of HDD.
Search
-Searching function by time, date, channel No. supported.
-Searching function by Alarm event supported
Playback
-Recording/playback simultaneously supported.
-FF, REW, Pause, Prev, Play, Mute Audio function supported.
Watermark
-Information such as time, date, channel No., and special marks can be printed on the video image to protect against forge, ensuring their uniqueness and credibility.
Pan/Tilt
-RS422 bi-directly communication interfaces, multiple Pan/Tilt control protocols supported.
-Pan/Tilt preset function supported.
Alarm
-4 channel alarm signal input, 2 channel alarm output supported.
-Alarm output type and alarm output time adjustable
-The alarm can be stopped manually.
Network
-10/100M Ethernet network function supported, realize remote real time surveillance.
-Network timing pr