Dahua X51A1E, X51A3E Specsheet

Lite Series | X51A1E/X51A2E/X51A3E

1080p H.265 Penta-brid HDCVI DVR

4+2/8+4/16+8-Channel Mini 1U HDCVI Digital Video Recorder

• Embedded Processor

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

• Dual-stream Recording

• 1080p at 15 fps Maximum Recording Resoluon

• 4, 8, or 16 HDCVI, AHD, TVI, CVBS Channels

• 4 + 2, 8 + 4, or 16 + 8 IP Channels, up to 6 MP per Channel

• Maximum 24/48/96 Mbps Incoming Bandwidth

• Built-in Smart Search

• Intelligent Video System

• One (1) SATA HDD Port, up to 10 TB per Hard Disk Drive

• Five-year Warranty*

System Overview

The X51A Series HDCVI DVR oers 1080p recording on each HDCVI
channel and a host of advanced features and funcons. The X51A 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 X51A 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 X51A series supports a maximum of
24 channels, with up to 16 channels of HDCVI/AHD/TVI/CVBS inputs and
up to an addional 8 channels of IP inputs. The exibility of the HDCVI
DVR allows all 24 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+

Plug&Play

4/8/16CH

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.

Intelligent Video System (IVS)

With built-in IVS analycs on up to eight (8) 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.

Face Detecon

The HDCVI DVR oers Face Detecon of the rst analog channel. This
technology detects and captures a snapshot of a human face in a dened
area within a scene.

Smart Fan Design

The HDCVI DVR automacally turns on or turns o the fan according
to the CPU temperature. This funcon reduces fan noise and helps to
conserve electricity.

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 | X51A1E/X51A2E/X51A3E

Technical Specicaon

System

Main Processor

Operating System

Interface

Analog Camera Input

Channel 1:

Preview Ability¹

Other Channels:

HDCVI

AHD

TVI

CVBS

IP Camera Input

Audio

Input

Output

Two-way Talk

Recording

Compression

Recording
Resolution¹

Main

Record
Rate¹

Maximum Incoming
Bandwidth

Bit Rate

Record Mode

Record Interval

Audio Compression

Audio Sample Rate

Audio Bit Rate

Stream

Sub
Stream

Embedded Processor

Embedded LINUX

X51A1E X51A2E X51A3E

Four (4) Channels,

BNC

• 5 M-N at 20 fps or

• 4 M-N, 1080p, 720p

at 30 fps

• 4 M-N, 1080p, 720p
at 30 fps

5 MP, 4 MP, 1080p at 30 fps, 720p at 60 fps, 720 p at 30 fps

5 MP, 4 MP, 1080p at 30 fps, 720p at 30 fps

5 MP, 4 MP, 1080p at 30 fps, 720p at 30 fps

4 + 2 8 + 4 16 + 8

Four (4) Channels,

RCA

Eight (8) 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

NTSC

Eight (8) Channels,

RCA

One (1) Channel, RCA

Reuse Audio In/Out, RCA

16 Channels,

BNC

16 Channels

(use DB25 Audio

Dongle)

X51A1E X51A2E X51A3E

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,

Channel 1:

• 5 M-N at 10 fps

Channels 2 to 4:

• 4 M-N, 1080p at
15 fps

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

24 Mbps 48 Mbps 96 Mbps

Manual, Schedule (Regular, Continuous),

MD (Video Detection: Motion Detection, Video Loss, Tampering),

1 to 60 minutes (default: 60 minutes),

AAC (first channel only), G.711A, G.711U, PCM

960H, D1, CIF

Channels 1 and 2:

• 5 M-N at 10 fps

Channels 3 to 8

• 4 M-N, 1080p at
15 fps

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

D1 or CIF at 15 fps

32 Kbps to 6144 Kbps per Channel

Alarm, Stop

Pre-record: 1 s to 30 s,

Post-record: 10 s to 300 s

8 KHz, 16 bits per Channel

64 Kbps per Channel

Channels 1 and 2:

Channels 3 to 16:

• 5 M-N at 10 fps

• 4 M-N, 1080p at

15 fps

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

Display

X51A1E X51A2E X51A3E

Interface

Native Output
Resolution

One (1) HDMI (3840 x 2160)

One (1) VGA (1920 x 1080)

1920 x 1080, 1280 x 1024, 1280 x 720

Maximum Decoding

4 Channels of 1080p at 7 fps

X51A1E

X51A2E

X51A3E

4 Channels of 720p at 15 fps
4 Channels of 960H at 30 fps

8 Channels of 4 M-N at 15 fps
8 Channels of 1080N at 30 fps
4 Channels of 4 M-N at 30 fps

16 Channels of 4 M-N at 15 fps
16 Channels of 1080p at 15 fps
4 Channels of 4 M-N at 30 fps

Multi-screen Display

IP extension mode
disabled

IP extension mode
enabled

On-screen Display

1/4 1/4/8/9 1/4/8/9/16

1/4/6 1/4/8/9/16 1/4/8/9/16/25

Camera Title, Time, Video Loss, Camera Lock,

Motion Detection, Recording

Network

X51A1E/X51A2E X51A3E

Interface

Network Function

Maximum User
Access

Mobile Operating
System

Interoperability

One (1) RJ45 (100 Mbps) Port One (1) RJ45 (1000 Mbps) Port

HTTP, 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 X51A1E/X51A2E X51A3E

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 16 Channels

Three (3) Channels Three (3) Channels

Playback and Backup

X51A1E X51A2E X51A3E

Playback

Search Mode

Playback Function

Backup Mode

1/4 1/4/9 1/4/9/16

Time/Date, Alarm, MD 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

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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