| Model | DH-DVR7804S-U | DH-DVR7808S-U | DH-DVR7816S-U | |
| System | ||||
| Main Processor | Dual-core embedded processor | |||
| Operating System | Embedded LINUX | |||
| Video | ||||
| IP Video Input | 4 channel | 8 channel | 16 channel | |
| Analog Input | 4 channel, BNC | 8 channel, BNC | 16 channel, BNC | |
| Analog Video Standard | NTSC(525Line, 60f/s), PAL(625Line, 50f/s) | |||
| Loop Output | 4 channel, BNC | 8 channel, BNC | 16 channel, BNC | |
| Audio | ||||
| Input | 4 channel, BNC | 8 channel, BNC | 16 channel, BNC | |
| Output | 1 channel, BNC | |||
| Two-way Talk | 1 channel Input, 1 channel Output, BNC | |||
| Display | ||||
| Interface | 2 HDMI, 1 VGA, 1 TV, 1 Spot, BNC | |||
| Resolution | 1920×1080, 1280×1024, 1280×720, 1024×768 | |||
| Display Split | 1/4/8 | 1/4/8/9/16 | 1/4/8/9/16/25/36 | |
| Privacy Masking | 4 rectangular zones (each camera) | |||
| OSD | Camera title, Time, Video loss, Camera lock, Motion detection, Recording | |||
| Recording | ||||
| Video/Audio Compression | H.264 / MJPEG(IP) / G.711 | |||
| Resolution | 1080P(1920×1080) / 720P(1280×720) / 960H(960×576/960×480) / D1/4CIF(704×576/704×480) / HD1(352×576/352×480) / 2CIF(704×288/704×240) / CIF(352×288/352×240) /QCIF(176×144/176×120) | |||
| Record Rate | IP | Max 160Mbps bit rate incoming | ||
| Analog | All channel@960H (25/30fps) | |||
| Bit Rate | IP: 48~8192 Kb/s, Analog: 48~3072Kb/s | |||
| Record Mode | Manual, Schedule(Regular(Continuous), MD, Alarm), Stop | |||
| Record Interval | 1~120 min. (default: 60 min.), Pre-record: 1~30 sec., Post-record: 10~300 sec. | |||
| Video Detection & Alarm | ||||
| Trigger Event | Recording, PTZ, Tour, Alarm, Video Push, Email, FTP, Spot, Buzzer & Screen tips | |||
| Video Detection | Motion Detection, MD Zones: 396(22×18), Video Loss & Camera Blank | |||
| Alarm Input | 4 channel | 8 channel | 16 channel | |
| Relay Output | 6 channel | |||
| Playback & Backup | ||||
| Sync Playback | 1/4 | 1/4/9 | 1/4/9/16 | |
| Search Mode | Time/Date, Alarm, MD & Exact search (accurate to second), Smart search | |||
| Playback Functions | Play, Pause, Stop, Rewind, Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom | |||
| Backup Mode | USB Device / eSATA Device / Internal SATA burner/ Network | |||
| Network | ||||
| Ethernet | 2 RJ-45 port (10/100M/1000M) | |||
| Network Functions | HTTP, IPv4/IPv6, TCP/IP, UPNP, RTSP, UDP, SMTP, NTP, DHCP, DNS, PPPOE, DDNS, FTP, IP Filter, Alarm Server, IP Search(Support Dahua IP camera, DVR, NVS and etc.) | |||
| Max. User Access | 128 users | |||
| Smart Phone | iPhone, iPad, Android, Windows Phone | |||
| Storage | ||||
| Internal HDD | 8 SATA ports (8HDDs or 6HDDs+1CD/DVD-RW), up to 32TB | |||
| External HDD | 1 eSATA port (Max 4 SATA HDDs), up to 16TB | |||
| Auxiliary Interface | ||||
| USB Interface | 4 ports (2 Rear), USB2.0 | |||
| RS232 | 1 port, For PC communication & Keyboard | |||
| RS485 | 1 port, For PTZ control | |||
| General | ||||
| Power Supply | AC 100~240 V, 50/60 Hz | |||
| Power Consumption | 40W | |||
| Working Environment | -10 ~+55°C / 10~90%RH / 86~106kpa | |||
| Dimension (W×D×H) |
2U, 440mm×460mm×89mm | |||
| Weight | 6.5KG(without HDD) | |||
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