1. MPEG4 video compression, a higher compression ratio, the more efficient hard disk space;
2. Image Format CIF/Half D1/D1 three options;
3. 4-channel synchronization of audio and video compression;
4. 4-channel input and 2-channel alarm output;
5. Support VGA output;
6. Pre USB 2.0 and audio&video output;
7. Support two pieces of large hard disks which more than 300G;
8. Table inquiry, time inquiry and precise inquiry, many inquiry ways;
9. Built-network function, TCP/IP protocol, support client software and Internet Explorer;
10. Support goes mirror control, equipped with infrared remote control
11. Graphical user interface, operate more convenient.

Technology parameter:
Video Signal: PAL (625 line, 50 field / sec) NTSC (525 line, 60 field / sec)
Video Input: Composite Video: 1.0V p-p/75 ??, BNC connector x 4
Video Output: Composite Video: 1.0V p-p/75 ??, BNC connector x 1, VGA output
Audio Input: RCA linker x 4
Audio Output: RCA x 1; RCA linker x 2
Alarm input: Non-voltage contact closure, always open or closed, 4-channel input
Alarm output: Non-voltage contact closure, always open, 2-channel output
Alarm: Alarm sensor input; Video detection alarm; Video loss alarm; Disc full warning
NETWORK: 10/100MMeet Ethernet port automatically, support LANWAN and ADSL Dynamic IP networks (optional)
Control: Support goes mirror control, camera control, RS485 interface x 1
Backup mode: USB Backup, Network Backup, Disc Backup, CD-RW Backup
Resolution: 704 x 576
Image: CIF 352 x 2881/2D1 352 x 576D1 704 x 576
Compression Standard: MPEG4
Hard Disk: Two IDE interface, Support two pieces of large hard disks which more than 300G
Bitstream installed: Stall seven Bitstream: 300MB/h, 400MB/h, 500MB/h, 600 MB/h. 700 MB/h.
800 MB/h, 900 MB/h; Own: 1~4000MB/ h:
Security functions: Data encryption + 2 Password management
Power: DC12V 5.0A/50Hz
Power: 30W (no hard disk)
Temperature: Operating temperature: +5 ~+50; Humidity: Less than 90%
Storage temperature: -20 ~ +70; Humidity: Less than 95%
Size appearance: 435 x 63 x 360mm:
Weight: about 4Kg