Main Functions ● It uses built-in 32bit micro processor, real-time operations system which guarantees the system's efficiency, reliability and stability. ● Single/dual channel synchronized recording of video and audio. ● Optional input/output format (PAL/NTSC). ● Each channel's index of video and audio can be set separately. ● Four different recording ways (manual, timing, moving and alarm) ● Easy and quick video replay and indexing. Support quick forward, backward and replay of single frame. ● Support 1/4 screen real-time surveillance and recording replay, which means the replay of recorded video and real-time surveillance can be conducted at the same time. ● The operation and control to the server can be conducted by pressing the buttons on the server, infrared remote controller, and connected PC. ● The standard FAT32 document system enables the recording file can be read on the PC system. The video can also be played with the built-in software. ● It is installed with 2 IDE channel which can support four hard disks over 200G. ● Strong hard disks management which support the hard disk format and partition. ● It supports TCP/IP and UDP protocols. Through the PC client software and LAN, the user can setup the system's parameters, real-time supervise the video and audio, check the system status, or record the video stream and backup the stored recording and remote control the cradle camera. ● Video moving dynamic check. Each channel can set 64 dynamic checking areas with 10 degrees of sensitivity. ● Video shield function. Each channel video can set 64 shielding areas. ● It provides a RS-485 interface which can realize the real-time control of the camera and cradle controller. The system has several built-in communication control protocols. ● It supports network software update which makes it easy for user to the upgrade maintenance and function expansion. ● Security safeguard functions like system lockout, password check and user authorization. Technology Index ● Video parameters Video input: PAL format (625 lines/frame, 50 frames/second)NTSC format (525 lines/frame, 60 frames/second) Four channel compound video input (BNC nozzle, 1VP-P,75Ω) Video output: PAL format (625 lines/frame, 50 frames/second)NTSC format (525 lines/frame, 60 frames/second) Single channel compound video out (BNC nozzle, 1VP-P, 75Ω). ● Audio Parameters Audio input: four channel audio input (lotus head, 20-100mv,10KΩ) Audio output: single channel audio input (lotus head, 20-100mv,10KΩ) ● Alarm Interface Alarm in: four routs alarm input (support constant open/constant close) Alarm out: dual routs alarm output (constant open, relay close output) ● Compression Algorithm: Video compression: H.264, Audio compression: G.722 ● Video resolution: real-time display (704*576), VGA output (1024*768) Video compression Half-D1 (704*288) CIF(352*288) ● Audio capture sample rate: 8K16bit ● Video Quality: optional video quality Half-D1 (high( or CIF (low) Each video quality has 6 grades (1, 2, 3, 4, 5, 6). ● data size statistics: Half-D1: Video quality 1-500M/H, 2-400M/H, 3-300M/H, 4-200M/H, 5-100M/H, 6-70M/H CIF: Video Quality 1-300M/H, 2-200M/H, 3-150M/H, 4-100M/H, 5-80M/H, 6-50M/H ● Operation system: Built-in real-time operation system (RTOS). ● Network connection: 10M/100M self-adaptation LAN joggles. ● Power supply: 220?0% V, 50?% HZ ● Consumption of the Server: (without hard disk) 30W single/dual channel ● Outside size: 440mm wide, 435 mm deep, 96.6mm high