دستگاه ضبط تحت شبکه 4 کانال داهوا DHI-NVR4104HS-4KS2/L

System
Main Processor Industrial-grade embedded processor
OS Embedded Linux
Operation Interface Web/operating in local GUI

Perimeter Protection by Camera
Performance 4 channels
AI Search Search for pictures by channel, time and event type

Face Detection by Camera
Performance 4 channels
Face Attributes 6 attributes: Gender, age, glasses, expression, mouth
mask, and beard
AI Search Search for pictures by channel, time and face attributes

SMD Plus by Camera
Performance 4 channels
AI Search Search by target classification (human, vehicle)

Video
Access Channel 4
Network Bandwidth Access: 80 Mbps; Storage: 80 Mbps; Forward: 60 Mbps
Resolution 8MP; 6MP; 5MP; 4MP; 3MP; 1080p; 720p; D1
Decoding Capability 8 × 1080p@30 fps
Video Output 1 × VGA output, 1 × HDMI output, supports
simultaneous video sources output for VGA and HDMI
Multi-screen Display 1 , 4 views
Third-party Camera
Access ONVIF; RTSP

Compression
Video Smart H.265/H.265/Smart H.264/H.264/MJPEG
Audio PCM/G711A/G711U/G726/AAC

Network
Network Protocol
HTTP; HTTPS; TCP/IP; IPv4/IPv6; UPnP; SNMP; RTSP;
UDP; SMTP; NTP; DHCP; DNS; IP Filter; DDNS; FTP; Alarm
Server; IP Search (Support Dahua IP camera; DVR; NVS;
etc.); P2P; auto register
Mobile Phone Access Android; iOS
Interoperability ONVIF(profile T/S/G); CGI; SDK
Browser Chrome; IE9 or later; firefox

Record Playback
Multi-channel Playback Up to 4 channels for playback
Record Mode Manual record; alarm recording; SMD recording; smart
recording
Storage Local HDD; network
Backup USB storage device
Playback Function
1. Play/pause/stop/slow/quick/backward/by frame
2. Full screen, backup (video clip/file), partial zoom in,
and audio on/off

Storage
Disk Group Yes

Alarm
General Alarm Motion detection, privacy masking, video loss, scene
changing, PIR alarm, IPC external alarm
Anomaly Alarm Camera disconnection, storage error, disk full, IP conflict,
MAC conflict, login locked, and cybersecurity exception
Intelligent Alarm
Face detection, perimeter protection (intrusion and
tripwire), IVS, people counting, heat map, and SMD
alarms
Alarm Linkage Recording, snapshot, audio, buzzer, log, preset, and
email

External Port
Audio Input 1 × RCA input
Audio Output 1 × RCA output
HDD
1 SATA III ports, up to 10 TB for a single HDD. The
maximum HDD capacity varies with environment
temperature
USB 2 (1 × front USB2.0; 1 × back USB2.0)
HDMI 1 (supports up to 4K resolution output)
VGA 1
Network 1 × RJ-45, 10/100 Mbps self-adaptive Ethernet port

General Parameter
Power Supply 12 VDC, 2A
Power Consumption < 10 W (HDD not included, idling)
Net Weight 0.81 kg (1.79 lb)
Gross Weight 1.41 kg (3.11 lb)
Product Dimensions 260 mm × 232.5 mm × 50.3 mm (10.24″ × 9.15″ × 1.98″)
(W × L × H)
Package Dimensions 89 mm × 333 mm × 315 mm (3.50″ × 13.11″ × 12.40″)
(W × L × H)
Operating Conditions –10 °C to +55 °C (+10 °F to +131 °F)
Storage Conditions 0 °C to +40 °C (32 °F to 104 °F)
Operating Humidity 10℅~93℅
Storage Humidity 30%~85%
Operating Altitude 3000 m (9842.52 ft)
Installation Desktop mounted
Certifications
CE: EN62368-1; EN55032,EN55024, EN55035, EN61000-
3-2, EN61000-3-3 EN50130-4
FCC: Part 15 Subpart B