Video Input:	4 Channels
Video Output:	4 Channels
Audio Input:	3 Channels
Audio Output:	3 Channels
Recording Rate:	30 fps (NTSC), 25 fps (PAL)
Display Rate:	30 fps (NTSC), 25 fps (PAL)
Video Resolution:	640x480,384x288,320x240,192x144,160x120
Compression Format:	MPEG4 Compression
Compression Type:	DVR Compression
Chipset:	Connexant878A
Operation System:	Win98/2000/XP
Software Language:	Support 12 Languages
NetWork Type:	Support remote control
Remote Type:
Backup Type:
TV Out:	No
Single System Support:	4 PCS
Card Dimensions:	MM
Card Weight:	KG

Description:     MPEG4 compressing format it allows 4 line video input     General resource PAL style 25 frame second  NTSC style  30 frame second     Differentiate rate of the display 640*480 320*240     vacuum engrossed by kinescope is about 60M100M line hour     You can select different speed when replaying  speed or backward     Signal alarm could be transmitted through LAN or long distant area network     It could realize skimming and playingback over image at long distance could transfer through telephone line could skim over through IE     IO 4 input  IO 3 output     It could support installing 4 pieces of card by signal system and could realize 16 lines video frequency gathering the general resource of kinescope is about 100 frames     Support 12 languages     operating system Windows 98 2000 NT XP