Dahua X51B1E User Manual

Lite Series | X51B1E

1080p H.265 Penta-brid HDCVI DVR

4+2 Channel Mini 1U HDCVI Digital Video Recorder

• Embedded Processor

• Smart H.265+ and Smart H.264+ Dual Codec

• Dual-stream Recording

• 5 M-N (1296 x 1944) at 20 fps Maximum Recording Resoluon

• Four (4) HDCVI, AHD, TVI, CVBS Channels

• 4 + 2 IP Channels, up to 6 MP per Channel

• Maximum 24 Mbps Incoming Bandwidth

• Built-in Smart Search

• Intelligent Video System

• One (1) SATA HDD Port, up to 6 TB per Hard Disk Drive

• Five-year Warranty*

System Overview

The X51B1E Series HDCVI DVR oers 1080p recording on each HDCVI
channel and a host of advanced features and funcons. The X51B1E
takes advantage of HDCVI technology for easy integraon into exisng
video surveillance systems while leveraging exisng networks, cabling,
and cameras. Penta-brid access technology seamlessly records video
from HDCVI, AHD, TVI, CVBS, and IP sources simultaneously.

The X51B1E ulizes the Smart H.265+ Codec to signicantly improve
encoding eciency and to reduce bandwidth and storage costs. This
recorder is the ideal soluon for acvely monitoring and recording video
feeds in a wide range of applicaons including public venues, retail
stores, transportaon hubs and access ways, personal property and
homes, and educaonal instuons.

Camera Connecons

Record and monitor video from analog/HDCVI camera inputs and IP
camera inputs simultaneously. The X51B1E series supports a maximum
of six (6) channels, with up to four (4) channels of HDCVI/AHD/TVI/
CVBS inputs and up to an addional two (2) channels of IP inputs. The
exibility of the HDCVI DVR allows all six (6) channels to record input
from IP cameras, or from a combinaon of input from analog and IP
sources (not to exceed the maximum number of analog cameras allowed
per recorder).

Flexible Recording

The HDCVI DVR oers a variety of congurable recording opons
and schedule that saves HDD space and acve monitoring me. The
recorder monitors incoming video and can be programmed to record
if moon is detected or if an alarm is triggered. The recorder can also
be programmed to record on a schedule or at dierent intervals. The
recording opons and schedules can be set for each individual camera or
copied to all cameras.

Lite

Series

H.265

Smart H.264+

1200m

Long Distance

4CH

Plug&Play

1080p

HDMI / VGA

P2P

Funcons

Smart H.265+

Smart H.265+ is the opmized implementaon of the H.265 codec that
uses a scene-adapve encoding strategy, dynamic GOP, dynamic ROI,
exible mul-frame reference structure and intelligent noise reducon to
deliver high-quality video without straining the network. Smart H.265+
technology reduces bit rate and storage requirements by up to 90%
when compared to the H.264 video compression standard.

HDCVI/AHD/TVI/CVBS Auto-detect

The HDCVI DVR automacally recognizes the incoming signals of each
aached camera without any setup, making installaon easy and
operaon convenient.

Long Distance Transmission

HDCVI technology guarantees real-me transmission over long distances
without loss of video quality. HDCVI devices provide the same resoluon
as most IP network camera systems using exisng RG-59, RG-6, or CAT 6
UTP cabling.

Intelligent Video System (IVS)

With built-in IVS analycs on up to two (2) channels, the HDCVI DVR
delivers intelligent funcons to monitor a scene for Tripwire violaons,
intrusion detecon, and abandoned or missing objects. A device with IVS
quickly and accurately responds to monitoring events in a specic area.

Smart Search

Smart Search allows an operator to specify a region in the playback video
to search for a moon detecon event, saving me and manpower.

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*Warranty applies to products sold through an authorized Dahua Dealer.

Lite Series | X51B1E

Technical Specicaon

System

Main Processor

Operating System

Interface

Analog Camera Input

Preview Ability¹

HDCVI

AHD

TVI

CVBS

IP Camera Input

Audio

Input

Output

Two-way Talk

Recording

Compression

Recording
Resolution¹

Main

Record

Stream

Rate¹

Sub
Stream

Maximum Incoming
Bandwidth

Bit Rate

Record Mode

Record Interval

Audio Compression

Audio Sample Rate

Audio Bit Rate

Embedded Processor

Embedded LINUX

Four (4) Channels, BNC

Channels 1 and 2:
5 M-N at 20 fps or
4 M-N, 1080p, 720p at 30 fps
Other Channels:
4 M-N, 1080p, 720p at 30 fps

5 MP, 4 MP, 1080p, 720p

5 MP, 4 MP, 1080p, 720p

5 MP, 4 MP, 1080p, 720p

NTSC

4 + 2
(The recording rate is dependent on the maximum resolution and
frame rate of the connected IP camera.)

Four (4) Channels, RCA

One (1) Channel, RCA

Reuse Audio In/Out, RCA

Smart H.265+, H.265, Smart H.264+, H.264

5 M-N (1296 x 1944), 4 M-N (1280 x 1440), 1080p, 1080N, 720p,
960H, D1, CIF

• Channel 1:

5 M-N or 4 M-N at 20 fps

• Channels 2 to 4

1080p at 15 fps
1080N, 720p, 960H, D1, CIF at 30 fps

D1 or CIF at 30 fps

24 Mbps

32 Kbps to 6144 Kbps per Channel

Manual, Schedule (General, Continuous),
MD (Video Detection: Motion Detection, Video Loss, Tampering),
Alarm, Intel, Stop

1 to 60 minutes (default: 60 minutes),
Pre-record: 1 s to 30 s,
Post-record: 10 s to 300 s

G.711A, G.711U, PCM

8 KHz, 16 bits per Channel

64 Kbps per Channel

Display

Interface

Native Output
Resolution

Maximum Decoding

Multi-screen Display

IP extension
mode disabled

IP extension
mode enabled

On-screen Display

One (1) HDMI (3840 x 2160)
One (1) VGA (1920 x 1080)

1920 x 1080, 1280 x 1024, 1280 x 720

4 Channels of 5 M-N at 10 fps
4 Channels of 1080p at 7 fps
4 Channels of 720p at 15 fps
4 Channels of 960H at 30 fps

1/4

1/4/6

Camera Title, Time, Video Loss, Camera Lock,
Motion Detection, Recording

Network

Interface

Network Function

Maximum User
Access

Mobile Operating
System

Interoperability

One (1) RJ45 (100 Mbps) Port

HTTP, HTTPS, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP,
DHCP, DNS, IP Filter, PPPoE,DDNS, FTP, Alarm Server, P2P, IP
Search (Supports Dahua IP cameras, DVRs, NVS)

128 Users

IOS, Android

ONVIF 16.12, CGI Conformant

Video Detecon and Alarm

Alarms

Trigger Events

Video Detection

Recording, PTZ, Tour, Video Push, Email, FTP, Snapshot, Buzzer
and Screen Tips

Motion Detection, MD Zones: 396 (22 × 18),
Video Loss, Tampering and Diagnosis

Alarms

Input

Output

Eight (8) Channels

Three (3) Channels

Playback and Backup

Playback

Search Mode

Playback Function

Backup Mode

1/4

Time/Date, Alarm, MD, Intel, and Exact Search
(accurate to 1 second)

Play, Pause, Stop, Rewind, Fast Play, Slow Play, Next File,
Previous File, Next Camera, Previous Camera, Full Screen,
Repeat, Shuffle, Backup Selection, and Digital Zoom

USB Device/Network

Storage

Internal HDD

One (1) SATA Port, up to 6 TB capacity

Auxiliary Interface

USB

Two (2) USB 2.0 Ports

1. The M-N resoluon refers to technology that allows a 1080p HDCVI DVR to accept a video signal from a 5 MP
or a 4 MP camera by sampling every other pixel on a horizontal line from the camera. The resulng recording
resoluons are: 5 M-N: 1296 x 1944; 4 M-N: 1280 x 1440.

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RS485

Electrical

Power Supply

Power Consumption

One (1) Port for PTZ Control

12 VDC, 1.5 A

< 10 W, without HDD