Features: - Hi-performance industrial embedded microprocessors and real-time operating system (RTOS). Superior reliability in system operation, no risk of virus infection. - 4-16 channels full frame rate MPEG4 recording and network streaming, supporting video compression format vary from CIF (352 X 288 pixels) to D1 (720 X 576 pixels), frame rate programmable - Display resolution: 720X576; recording resolution: 352 X 288 or 720 X 576 - Supports of recording image overspreads and displaying text and graphics superposition - 1, 4, 9 or 16 split-screen / multi-channel real-time monitor during playback, support TV monitor or video output, and loop back 16 output - inside equipped 4 IDE ports, 8 HDDs can be installed. Special embedded video file management, video files seamless connection, intellectualized HDD working method, reduce the power consumption and heat emission - supports of manual, sensor, schedule recording mode, among which alarm recording and motion detection recording are of pre-recording function - supports X2, X4, X8 fast play, pause, stop, 15F/S, 5F/S slow play and frame by frame playback - color graphic OSD Menu, easy operation - Supports WEB browser, net client can manage many sets of DVRs at the same time. Built in IP switch matrix function. Real time search of live and recorded videos. Download of recorded videos and remote camera control.- Camera control (Pan, Tilt and Zoom) - Remote systems update, logging management and long-range system maintenance functions - Internal or external CD writer (operational) Main Functions Real-time surveillance - 1, 4, 9 split-screen surveillance ?Support VGA display, monitor display Video Compression - MPEG4 fixed code ratio or flexible code ratio - 8 channel synchronic recording Video Function - Video Partial mask - Video and character mixture Storage - Internal 4 IDE disk ports - Smart Disk management: non-working disks will be in sleep for less heating and longer life span - Files on disks can be cyclic record or non-cyclic record as overwrite. ?Remote client can backup or play video via network Record/ Playback - synchronization operation: during independent full and real-time record on each channel, single channel or multi-channel synchronic local playback index or multi-channel network video query and playback are all possible - multi-record mode: manual record, timer record, alarm (chain) record, dynamic detection record. And dynamic detection with external alarm pre-record - During playback, picture-in-picture and multi-picture real-time surveillance is possible - Fast indexing both in common record and alarm record mode - Multi-mode of playback: X2、X4 fast playback, 1/2、1/4 speed playback, pause, single frame back/forward, multi-channel synchronic playback etc. Control Function - Support RS485 P/T/Z encoder - Multi-P/T/Z and dome control Network Control - Multi-user remote (network) real-time surveillance - Multi-user remote backup and playback - Pan/Tilt/Zoom Control - System configuration and software update - Remote alarm management and system log view - Client supports multi-camera management - Support RTP/RTCP protocol - Support WEB browser Chain Alarm - 8 channels external volt value alarm input, video loss alarm, dynamic detection alarm, smoke, temperature detection device possible - Multi-Relay switch value alarm output, convenient realization of chain alarm and on-spot light control