True four-tasking synchronization function; recording, playback, transmission and backup can work simultaneously.4-channel video, 4-channel audio full real-time and synchronous input, 1 channel voice talkback.
Under D1 video resolution, PAL(352x288) format total recording resources is 100 frames and each channel can realize independent hardware compression at the speed of 25 frames(adjustable) per second. NTSC(360x240) format total recording resources is 120 frames and each channel can realize independent hardware compression at the speed of 30 frames(adjustable) per second. Video compression adopts H.264 compression technology; supports constant bit rate, variable bit rate compression and variable frame rate compression.
Audio compression standard adopts ADPCM.Max supports 2*2000GB SATA HDD.
Timing recording, manual recording, motion detection recording, alarm recording, any mode for selection.
4-channel full D1 real time recording and network transmission work simultaneously. 1-channel to 4-channel D1 playback.Recording playback searches according to the channel number, recording type and recording time, supporting fast forward, slow forward, single-frame, last section, next section etc..
Supports two USB2.0 high-speed port and one USB1.1 port. Provides backup of video files on the hard disk; supports U disk and USB hard disk.
Preview supports single-channel, multi-channel and single-channel auto-switch display.Support alarm when image blocked.Supports multi-protocol RS485 PTZ control, PTZ preset points, cruising and tracking functions; supports PTZ keyboard control.
4-channel alarm input and 4-channel alarm output. Supports alarm link function when motion detection and other anomalous events occur.
Can setup multiple user type authority customization. Besides one administrator, multiple user types can be setup through "user management authority", increasing the flexibility of the security management of the user authority. Realize 3G mobile phone monitoring.Supports Alarm email warning.
RJ45 network. Supports remote network monitoring, remote video playback, remote video back-up and remote PTZ control.
Supports two-way voice talkback or one-way voice broadcast through remote PC and network DVR.
The languages of the system menu include Chinese, English, German, Spanish, Russian, French, Korean, Turkish, Portuguese, Italian and Japanese.

Video Input 4 BNC
Video Output 1 BNC, 1 VGA
Audio Input 4 RCA
Audio Output 1 RCA
Line in 1 RCA
Network 1 RJ45 10/100MB,TCP/IP, PPPoE, DHCP, DDNS
Alarm Input/Output (Relay) 4/1
Backup USB 2.0, Network
Video Compression H.264
Average Bit Rate Size 6-9KBytes
Live Display Resolution NTSC 720¡Á480/PAL 720¡Á576
Recording Rate NTSC 720¡Á480 120fps
PAL 704¡Á576 100fps
Recording Mode Manual, Timing, Alarm, Motion Detection
Communication Port RS-485
Playback Speed Fast Forward¡Á1, 2, 4, 8
Controller Mouse, Remote Control, Panel
Power Input/Output 110V¡«220V AC(optional)
Dimension/Weight 350(W) ¡Á240(D) ¡Á70(H)/3.5Kg
HDD Max2*2000GB SATA
Language English/German/Spanish/Russian/Chinese/French/
Korean/Turkish/Portuguese/Italian/Japanese