Comtec Digital Video / Audio Surveillance System

SYSTEM OVERVIEW( 01) The system development is based on Comtec embedded DOM (disk-on-module) Linux Kernel technology known for highest system stability, lowest risk of being hacked and viruses invasion (the system kernel and video files are stored by separated storage media) . ( 02) The system uses hardware MPEG-4 / H. 264 video / audio compression format that has a high video compression rate and low transmission bandwidth. The compression format supports D1 (NTSC 704*480, PAL 704*576) , and CIF (NTSC 352*240, PAL 352*288) by individual video channel setup selection. The system build-in proprietary anti-interpolated mechanism to protect the recorded video files. ( 03) It supports system operation from server (DVR) and remote (LAN, and WAN) site concurrently with almost the same user interface and functionality. It also supports multi-tasking (monitoring, recording, and playback) capability. When operating from remote, user only needs to key in the DVR IP address or DVR domain name (DDNS service supported from COMTEC) through IE browser directly. ( 04) The system supports user interface with multi-language as English and Traditional Chinese. It also allows user to login from remote site, and selects different language from server site. ( 05) The system supports both NTSC and PAL video format can be combined to use together. ( 06) The system supports multiple ports of different video channel inputs (up to 20 ports capabilities) . One set of DVR card can support 4 ports of video inputs. All video inputs can be displayed concurrently within the screen. Each video channel can also come with one port of individual audio input to perform synchronized video / audio monitoring, recording, and playback function. ( 07) The system provides a superb high monitoring speed for individual video channel as real time displayed with NTSC 30 FPS (frames-per-second) and PAL 25 FPS; for full system (20 ports) as real time displayed with NTSC 600 FPS, and PAL 500 FPS. ( 08) The system allows the highest recording speed for individual video channel as real time recording with NTSC 30 FPS, and PAL 25 FPS; for full system (20 ports) as real time recording with NTSC 600 FPS, and PAL 500 FPS (the system can support all 20 channels with full D1, NTSC 704*480 and PAL 704*576, recording resolution quality) . Meanwhile, considering the server storage space and network bandwidth limitation, the video recording frame and networking transmission speed for individual channel can be set independently. ( 09) The system supports monitoring function even without being installed any hard disk storage media into the server. When storage media installed internal / external of the server, the system can automatically self-detect and execute all storage media formatting task, and provide in time storage status information on the monitoring screen. ( 10) The system supports multi-type of pcs / sets of HDD / disk array storage media concurrently connected to the DVR server as system disk. The maximum storage media connection capability of the system can be totally IDE interface storage*6 (6 pcs / sets of HDD / disk array with IDE interface) , SATA / SCSI interface storage*6 (6 pcs / sets of HDD / disk array with SATA / SCSI interface) , and USB interface storage*8 (8 pcs / sets of HDD / disk array with USB interface) . ( 11) more information on: www. Comtecsystems. Net