1. Introduction ZXNVM5000 series multimedia access unit is a set of network video monitoring products with complete functions and flexible networking, which can meet the needs of different users. Using H.264 compression technology and double code stream technology, it has the functions of picture segmentation, pan-tilt control, motion perception, alarm linkage video recording and so on. It is a professional product integrating local monitoring, video recording and network transmission. The first, fifth, ninth and thirteenth video input channels can support D 1 resolution coding at most; The remaining channels support CIF coding at the highest; 2. technical indicators interface indicators video interface: composite video interface audio interface: analog balance interface network interface:10100 mbaset serial port: RS232, RS485 USB interface: USB 1. 1 protocol video parameters adjustable parameters: brightness, hue, contrast, Saturation coding parameter coding standard: H.264 standard: PAL/NTSC resolution: QCIF( 176* 144), CIF(352*288) Any adjustable storage capacity: ZXNMS5001~ ZXNMS5002. Maximum number of hard disks: 4 zxnvms5004 ~ zxnvms500 16. Maximum number of hard disks: 8. Each supported hard disk has a capacity of 2000GB. Power Supply Requirements Input power supply: nominal voltage. 0V, and the fluctuation range is 20%. Maximum power consumption: 42W (excluding hard disk). Working environment Working temperature:-10℃~55℃ Relative humidity: 10%~90% (no condensation). Overall dimensions: 44 1mm (width) ×470mm. Provide 1 multi-video output interface. Provide1/2/4/6/8/12/16 audio input ports, which correspond to video channels one by one and transmit synchronously. Provide 1 10/ 100M adaptive network port. Two serial ports, 1 RS232 and 1 RS485, are provided. Provide up to 16 DI input and 4 DO output interfaces. Provide 1 USB interface, and the protocol is USB 1. 1. Support u disk, USB hard disk, USB burner, monitor and VGA output connection. When previewing, there are many ways to switch the display mode (1/4/9/ 16). Support image local masking. Support playback. Support fast playback, slow playback, single frame and other playback modes, and search by time. Each image can be superimposed with camera name, channel name, time/date, etc. Support local video status display. Hard disk space management and data backup can support up to eight IDE hard disks. The hard disk file system is FAT32, which is consistent with the Windows file system. File records are not fragmented, and the system can maintain stable operation for a long time. Support local hard disk intelligent technology. You can choose circular recording and non-circular recording for files on your hard disk. Provide backup and editing of hard disk video materials, and support USB flash drive, USB hard disk and USB CDRW backup devices. Sensor/alarm function supports local alarm (including abnormal events and multi-area movement detection) linkage. You can set the alarm schedule (alarm and alarm cancellation), alarm linkage type, preset point to reach when alarming, cruise route or trajectory. Provide serial port to connect other data acquisition equipment and intelligent monitoring equipment. Network function supports TCP/IP protocol. Support PPPoE. Network real-time preview: Support TCP, RTP and multicast transmission. Support network control command, and can simulate local key operation through remote PC. You can set parameters through the network, browse any or at most sixteen channels of video and audio signals in real time, and check the status of video equipment. Network alarm linkage (alarm signal upload). You can control the pan/tilt and lens through the network. The compressed code stream can be recorded in real time through the network. You can download or play the video files stored in the hard disk through the network. It can be upgraded remotely through the network to realize remote maintenance. Have the function of web browsing. Security management supports watermarking technology to sign the transmitted video information, effectively preventing the information from being illegally tampered with and ensuring the authenticity and validity of the data. User name, password and code stream are all encrypted with passwords to prevent leakage. Support customization of operator user rights. In addition to one administrator, you can also set up multiple operators through "custom permissions", which increases the flexibility of operator safety management. Provide logs (operation log, alarm log, error log) to record and query. The control function supports multiple decoder types. Support the setting and calling of preset point, cruise and trajectory. The user interface can be set and controlled through manipulators and panels. Support remote control, RS-485 interface keyboard, network keyboard and keyboard-based device cascade. Provide multi-level menu, which is convenient for users to set up and operate. Support multiple languages. The video recording function supports six video recording modes: timed video recording, manual video recording, dynamic sensing video recording, alarm video recording, dynamic sensing video recording and alarm video recording, and dynamic sensing video recording or alarm video recording. Don't listen to their nonsense about this matter. 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