DS-8004HFI-S is a good digital surveillance products designed specifically for the security field。It combines the latest technology of IT areas， such as video and audio compression / decompression,large-capacity hard disk record,TCP/IP network technology and so on,curing of the code in the FLASH ,makes the system more stable.
   DS-8004HFI-S has the characteristics of digital video and audio recorder (DVR) and digital video and audio server (DVS) simultaneously, both work independently in the local,also can be networked to form a powerful security monitoring network.Can be used in the safety precaution of banking, telecommunications, power, justice, transport, residential, factory, warehouse, resources,water conservancy facilities fields and sectors.

• Neutral packaging (without Hikvision standard color package)
• Front panel has not Hikvision's LOG
• Technical support both in English and Chinese user interface
• Support rung output.

• Support 4 PAL / NTSC standard video signal, each path can be 25 per second of real-time independent hardware compression, using H.264 video compression technology;
• Not only support the variable bit-rate but also variable frame rate. Can set the quality of video images,also can set the compression code stream of video images;
• Support 4-channel audio signals, each audio signal real-time compress independently, useing OggVorbis audio compression standard, compression rate is 16Kbps;
• Video and audio signal generate a composite H.264 stream after compressed,when stream playback ,video and audio keep in sync.can also set up a single video stream;
• Support video parameter dynamic settings;
• Support dual-stream;
• Support for 4CIF, DCIF, 2CIF, CIF and QCIF resolution;
• Support for multi-zone motion detection;
• In support of OSD, the date and time display format, location and gray-scale display can be set, the date and time automatically;
• Support LOGO；
• Support watermark (WATER-MARK);

• Documented in six modes: regular video, manual recording, motion detection recording, alarm recording, motion detection video & alarm video, mobile surveillance; Test video | police video;
• Eight SATA interface, can support eight SATA hard drives,SATA1 hard drive can option to act on video or for backup;
• The file system format of hard disk is FAT32;
• SMART technical support the local hard disk;
• May choose loop record or non-cycle record to file on your hard disk;
• To provide information on the hard disk backup and video editing, support for SATA hard disk, U disk, USB hard disk, USB CDRW back-up equipment, etc.;

• Support the main port, auxiliary port dual output, and the main, auxiliary output independently to achieve their respective functions;
• Main, auxiliary output can be set independent way split screen preview, Round Robin, as well as switching time to switch the screen sequence,does not affect mutually;
• Main, auxiliary output, respectively, have their own independent playback function, can realize the operation of the respective playback interface, document retrieval and playback control (fast release, slow motion, before the jump, after the jump, etc.);
• Respectively in the main, auxiliary output of the channel at the same time intervals does not affect mutuallyany document;
• Can be in the main, auxiliary output for PTZ control, the same way through the button on the main switch, auxiliary control output;
• HS-S device support loop-through output; preview and playback;
• Support dual-operator, dual interface;
• VGA output to connect or support the main, auxiliary port to connect two monitors;
• Main, auxiliary output preview support multi-display mode (1 / 4) switch;
• Cover image of local support;
• Support the image of local (or all) of the police to deal with shelter;
• Main, auxiliary output support two-way playback, support fast release, slow release, such as single-frame playback mode, according to the type of video, search by time;
• OSD overlay support, passage of superposition;
• Local video, and alarm status display;

• Support for PTZ camera control;
• To support the preset point, cruising, track settings and call;

• Local police (including the unusual event, motion detection) linkage: Alarm schedule (deployment, from a defended position), the police linked the type of alarm to arrival at Preset point, the path or track of cruise;
• RS-485 interface keyboard support;

• Keyboard support network;
• Cascade-based equipment to support the keyboard;

• Support the operator of the custom user rights; in addition to an outside administrator, through the "custom permission" to set up a number of operators, operators increased flexibility in security management;
• Support the operator to access detailed user permissions; network functions;
• Support TCP / IP protocol;
• Support for broadband dial-up (PPPoE);
• Support the narrow-band transmission (PPP);
• Support for dynamic IP address assignment (DHCP);
• Network real-time preview: Support TCP, UDP, RTP, multicast transmission;
• Support network-side control commands, a remote PC via local button operation simulation;
• Parameters can be set through the network, real-time views of any or all the way up to 16 way video and audio signals;
• Through the network to view the status of video equipment;
• Network alarm linkage (From alarm signal);
• PTZ control through the network and the lens;
• Records can be compressed through the network stream in real time;
• Can be downloaded through the network on the network hard disk video recorder files can also be remote playback via Web video recorded documents;
• Can be upgraded remotely through the network, the realization of remote maintenance;
• RS-232 serial port and RS-485 interfaces are transparent links between support networks, remote PC DVR through the transparent network access to send / access to data;
• Through a remote PC and network DVR two-way voice intercom (or one-way voice radio);
• WEB SERVER with features, the browser can access the network hard disk video recorders;
• Provided log (operation log, alarm log, system log) records and inquiries;
• User name, password and key password when streaming encryption, to prevent leakage;
• To provide for the operation of the network DVR SDK Development Kit;
• Demo application source code provided to accelerate the pace of application development.

Video compression standards	H.264
Video compression standards	PAL：704*576 NTSC：704*480
Playback resolution	QCIF/CIF/2CIF/DCIF/4CIF
Video input approach	1/2/4/6/8/10/12/16
Video input interface	BNC (Level: 1.0Vp-p, impedance: 75Ω), support PAL, NTSC system
Video output	2-way (DS-8001HF-S is only 1 way)
Video output interface	BNC (Level: 1.0Vp-p, impedance: 75Ω)
Video frame rate	PAL: 1/16--25 frames / sec, NTSC: 1/16--30 frames / sec
Stream type	Video streaming / composite flow
Output bit-rate compression	32K - 2M adjustable and customizable. (Upper limit of 8M, unit: bps)
Audio input approach	1/2/4/6/8/10/12/16
Audio input interface	BNC (level: 2Vp-p, Impedance: 1kΩ)
Audio Output	2-way (DS-8001HF-S is only 1 way)
Audio input interface	BNC (linear level, impedance: 600Ω)
Audio compression standard	OggVorbis
Bit-rate audio compression	16Kbps
Intercom voice input	1 Road, BNC (level: 2Vp-p, Impedance: 1kΩ)
Two-way playback	Support (DS-8001HF-S only supports single-channel playback)
Dual-stream	Support
Communication Interface	1 RJ45 10M/100M adaptive Ethernet port, an RS232 port, 1 RS485 port
Keyboard interface	1 (to support the cascade, in which DS-8001HF-S, DS-8002HF-S, DS-8004HF-S 2)
Hard disk interface	8 SATA drives, each hard drive capacity up to 2000GB
USB interface	1, support U disk, USB hard drives, USB drives, USB mouse
VGA interface	1, resolution: 800 × 600/60Hz, 1024 × 768/60Hz, 1280 × 1024/60Hz
Alarm input	4/16 line
Alarm output	2 / 4 line
Power Supply	220VAC，50HZ
Power consumption (without hard drive)	≤70W
Operating temperature	-10℃--＋55℃
Working humidity	10％--90％
Chassis	19-inch standard chassis
Dimensions (mm)	90mm (high) × 441mm (width) × 470mm (D)
Weight(without hard drive)	≤8Kg