OS

 Linux

 Video Compression

 H.264

 Preview Resolution

 PAL: 704*576? NTSC: 704*480

 Compress Resolution

 CIF, QCIF

 Video Input

 4 Channels BNC(1.0Vp-p, 75Ω)

 Video Output

 1 Channel BNC (1.0Vp-p, 75Ω);1ch VGA output

 Frame rate per Channel

 PAL: 1/16—25 F/S; NTSC: 1/16—30 F/Sincerely yours,

 Stream Type

 Mixed stream or Video Stream

 Bit rate

 16Kbps～2Mbps (Self definition)

 Audio Input

 4Channels, BNC (Linear   Electrical Level, Resistance: 1000Ω), SNR > 83db

 Audio Output

 1 Channel, BNC (Linear Electrical Level)

 Audio Compression

 OggVorbis

 Audio bit rate

 16Kbps

 Voice Audio input

 1 Channel, BNC (Linear Electrical Level, Resistance: 1000Ω)

 Communication Interface

 1 RJ45 10M/100M UTP Network，1 RJ45 for RS232, 1 RJ45 for RS485

 Keyboard Interface

 1 RJ45

 Serial Link Interface

 1 RJ45

 USB Interface

 1, support USB1.1; Support USB flash disk, USB HDD, USB ?CD R/W

 VGA Interface

 1, Support 800×600/60Hz，800×600/75Hz，1024×768/60Hz

 Switch Alarm Input

4Ports

 Switch Alarm Output

4Ports

 Power Supply

 90--135VAC or 180--265VAC, 47--63 Hz

 Working temperature

 -10℃--+50℃

 Working Humidity

 10%--90%

 Size

 19inch (450mm*450mm*95mm)

 Weight

 8Kg (AOP-8804 without HDD)