Main processor: built-in special processor Operation system: PTOS Operate interface: pictured menu operate interface Video standard:

PAL: (625 lines/f, 50)

NTSC: (525 lines/f, 60) Video input: four-way compound video input (BNC ports, 1.0Vp-p, 75 Ohms) Video output: one-way compound video output (BNC ports, 1.0Vp-p, 75 Ohms) Audio input: one to four-way compound video input 20 to 100mV, 10k Ohms (RCA) Audio output: one-way compound video output 20 to 100mV, 10k Ohms (RCA) System source: simultaneously multiple streams record, playback and networks operation Image resolution: real-time monitor (704 x 576), VGA output (1,024 x 768), video compress CIF (352 x 288), video playback CIF (352 x 288) Audio sampling rate: 8K sampling per second, 16-bit and sampling point Video motion detect: district setting: one picture with 64 detect district/detect sensitivity setting: one district with 10 grades Video compress: amplified MPEG-4 Audio compress: G.722 Video compress rate: 352 x 288 and 176 x 144Q CIF mode Audio compress rate: real-time mode:

PAL: each way 1 to 25f/s

NTSC: each way 1 to 30f/s grades quality of reconcilable picture Hard disk: built-in 2 IDE channel Supports four hard disk run simultaneously Occupied hard disk space:

Audio: G.722 14.4mph

Video: 60 to 250mph Alarm input: supports two-way, ever-on and ever-off Alarm output: ever-on, relay shutdown output Alarm relay: 30V DC 1A, 125V AC 0.5A (linkage output) Net port: RJ45 10/100M supports Ethernet networks ports Cradle head control port: RS485 Power source: 220 ±30% V, 50 ±3%Hz Main engine consumption: 35, 40, 45 and 50W (without hard disk) Temperature: -10 to 55 degrees Celsius Humidity: -10 to 90% Atmospheric pressure: 86 to 106kPa Dimensions: special engine cast 348 x 250 x 76 Weight kg: empty store, without hard disk Installation method: rack installation On-desk installation