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B31 all-in-one controller

Adopts the 3 U standard rackmount chassis and ATCA chassis system for small to medium-sized surveillance.
Adopts the plug-in modular design to provide flexible choice of model according to needs.
Supports auto temperature adjustment of the intelligent fan to ensure system stability and reliability.
Supports HDMI signal input and output.
Supports the default H.265 encoding and H.264 encoding.
Supports H.265, H.264, MJPEG and other mainstream encoding formats.
Supports 4 channels of HD video encoding.
Supports 64 channels of HD video decoding.
Supports the maximum LED loading capacity of 2.6 MP per port.
Supports 32 MP HD video decoding.
Supports any splicing of 8 screens according to needs.
Supports the division of 1, 4, 6, 8, 9, 16, and 25 per output port window.
Supports opening a maximum of 64 windows on the video walls, opening a maximum of four 1080p layers or two 4K layers on a single screen, and floating windows.
Supports live view of video wall.
Supports up to 128 scenes. You can customize the video wall layout and save it as a scene.
Supports up to 8 subtitles for the video wall controller and up to 3 subtitles for one video wall.
Supports the access and operation via the mobile client (Android or iOS), PC client, and web client.
Support using the ONVIF protocol to access devices for decoding.

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Data Sheet

Available models:

DS-B31-04H08H

Specification
Resources
Accessories

Data Sheet

Chassis
Chassis Height3 U
Bus TypeGigabit network switching
Main Control Board Slot1
Installed Main Control Boards1
Power Supply Slot2
Installed Power Supplies1
Service Board Slot6
Installed Service Boards0
Device Decoding Capability64 channels of 1080p 30 fps
Device Encoding Capability4 channels of 1080p 60 fps
Device Splicing Capability8 channels
Fan14 (2 fan boards, 7 fans per fan board)

Interface
USB Interface2 × USB 2.0
Serial Interface1 × Console port (RJ-45) + 1 × reserved port for debugging + 2 × RS-485/RS-232 multiplex ports (RJ-45)
Network Interface2 × 10/100/1000 Mbps self-adaptive Ethernet interface (RJ-45)

Power
Power Interface100 to 240 VAC, 50/60 Hz
Device Consumption≤ 120 W

Video Wall
Video Walls8
Video Wall Scale≤ 8
Open Windows128
Window Division per Screen1/4/6/8/9/16/25
Input Source Copy CapabilitySupported
Layers Per Screen4 × 1080p or 2 × 4K
Layers per Device32
Scenes128
Signal Source Live ViewSupported
Scene Auto-Switch Delay3 s
Preview Channels2
Preview ResolutionCIF(352 × 288)/QCIF(176 × 144)/HCIF(704 × 288)/DCIF(528 × 384)/FCIF(704 × 576)
Background Image≤ 8, single background image resolution: 1280 × 720 to 7680 × 4320, background image format: JGP/JPEG.
Subtitles≤ 8 subtitles on the video walls; ≤ 3 subtitles on a single video wall
Input Image ClippingSupported, 200 pixels on the left, right, top and bottom edges.
Delay of Displaying Local Signal Source on Video Wall120 ms

General
Working Temperature0 °C to 50 °C
Working Humidity10% to 90%
Net Weight≤ 6.7 kg (14.77 lb.)
Gross Weight≤ 14 kg (30.86 lb.)
Dimensions (W × H × D)442.4 mm × 128 mm × 341.6 mm (17.42 inch × 5.04 inch × 13.45 inch)
Packing List1 × serial port cable, 1 × AC power cord, 1 × grounding cable, 1 × M4 screw, 1 × HDMI bracket, several HDMI snap fittings, 1 × regulatory compliance and safety information manual

Audio Input
Audio Input Interfaces4
Audio Input Interface TypeHDMI embedded

Video Input
Video Input Resolution1024 × 768@60 Hz, 1280 × 1024@60 Hz, 1366 × 768@60 Hz, 1440 × 900@60 Hz, 1680 × 1050@60 Hz, 1280 × 960@60 Hz, 1600 × 1200@60 Hz, 1280 × 720p@50 Hz, 1280 × 720p@60 Hz, 1920 × 1080p@50 Hz, 1920 × 1080p@60 Hz, 1920 × 1200@60 Hz, 3840 × 2160@30 Hz (only odd-numbered ports) Supports custom resolution. Width: 800 to 1920, pixel alignment: must be a multiple of 4 Height: 600 to 1200, pixel alignment: must be a multiple of 2 Resolution: 0.48 MP to 2.3 MP
Video Input Interface TypeHDMI 1.4
Max. Video Input Resolution4K (Only odd-numbered ports)
Video Input Interfaces4

Video Encoding
Video Encoding Channels4
Video Encoding CapabilitySub-stream and main stream encoding; Sub-stream encoding contains: CIF(352 × 288)/FCIF(704 × 576), Main stream encoding contains: 720p(1280 × 720)/XVGA(1280 × 960)/ UXGA(1600 × 1200)/1080p(1920 × 1080)/XGA(1024 × 768)/ WXGA(1360 × 768)/SXGA(1280 × 1024)/SXGA(1400 × 1050)/ WSXGA(1440 × 900)/WSXGA+(1680 × 1050)/1920 × 1200/3840 × 2160

Video Output
Video Output Interface TypeHDMI 1.4
Video Output Interfaces8
Max. Video Output Resolution4K
Video Output ResolutionXGA_60 Hz(1024 × 768@60 Hz)/SXGA_60 Hz(1280 × 1024@60 Hz)/ 720P_60 Hz(1280 × 720@60 Hz)/UXGA_60 Hz(1600 × 1200@60 Hz)/ WSXGA_60 Hz(1680 × 1050@60 Hz)/WUXGA_60 Hz(1920 × 1200@60 Hz)/ 1080P_60 Hz(1920 × 1080@60 Hz)/4K_30 Hz(3840 × 2160@30 Hz)
Loading Capacity for Video Output to LEDLoading per port: 2600000 Width: 288 to 3840; pixel alignment: must be a multiple of 2 Height: 288 to 2160; pixel alignment: must be a multiple of 2

Video Decoding
Video Decoding FormatH.264, H.265, Smart264, Smart265, MJPEG
Video Decoding Channels128
Video Decoding CapabilityH.264/H.265/Smart264/Smart265 format: 4 channels of 32 MP/24 MP, 8 channels of 16 MP, 10 channels of 12 MP, 16 channels of 8 MP, 20 channels of 6 MP, 32 channels of 4 MP, 64 channels of 1080p, or 128 channels of 720p/D1 or lower resolution (One group of 4 outputs shares decoding capability) MJPEG format: 8 channels of 2 MP

Audio Output
Audio Output Interfaces8
Audio Output Interface TypeHDMI embedded

Encoding and Decoding/Audio Decoding
Audio Decoding FormatG711-A, G711-U, G722.1, G726-16/U/A, MPG, AAC-LC

Encoding and Decoding/Video Encoding
Video Encoding FormatH.265(default) , H.264

Chassis

Chassis Height

3 U

Bus Type

Gigabit network switching

Main Control Board Slot

Installed Main Control Boards

Power Supply Slot

Installed Power Supplies

Service Board Slot

Installed Service Boards

Device Decoding Capability

64 channels of 1080p 30 fps

Device Encoding Capability

4 channels of 1080p 60 fps

Device Splicing Capability

8 channels

Fan

14 (2 fan boards, 7 fans per fan board)

Interface

USB Interface

2 × USB 2.0

Serial Interface

1 × Console port (RJ-45) + 1 × reserved port for debugging + 2 × RS-485/RS-232 multiplex ports (RJ-45)

Network Interface

2 × 10/100/1000 Mbps self-adaptive Ethernet interface (RJ-45)

Power

Power Interface

100 to 240 VAC, 50/60 Hz

Device Consumption

≤ 120 W

Video Wall

Video Walls

Video Wall Scale

≤ 8

Open Windows

128

Window Division per Screen

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

Input Source Copy Capability

Supported

Layers Per Screen

4 × 1080p or 2 × 4K

Layers per Device

Scenes

128

Signal Source Live View

Supported

Scene Auto-Switch Delay

3 s

Preview Channels

Preview Resolution

CIF(352 × 288)/QCIF(176 × 144)/HCIF(704 × 288)/DCIF(528 × 384)/FCIF(704 × 576)

Background Image

≤ 8, single background image resolution: 1280 × 720 to 7680 × 4320, background image format: JGP/JPEG.

Subtitles

≤ 8 subtitles on the video walls; ≤ 3 subtitles on a single video wall

Input Image Clipping

Supported, 200 pixels on the left, right, top and bottom edges.

Delay of Displaying Local Signal Source on Video Wall

120 ms

General

Working Temperature

0 °C to 50 °C

Working Humidity

10% to 90%

Net Weight

≤ 6.7 kg (14.77 lb.)

Gross Weight

≤ 14 kg (30.86 lb.)

Dimensions (W × H × D)

442.4 mm × 128 mm × 341.6 mm (17.42 inch × 5.04 inch × 13.45 inch)

Packing List

1 × serial port cable, 1 × AC power cord, 1 × grounding cable, 1 × M4 screw, 1 × HDMI bracket, several HDMI snap fittings, 1 × regulatory compliance and safety information manual

Audio Input

Audio Input Interfaces

Audio Input Interface Type

HDMI embedded

Video Input

Video Input Resolution

1024 × 768@60 Hz, 1280 × 1024@60 Hz, 1366 × 768@60 Hz, 1440 × 900@60 Hz, 1680 × 1050@60 Hz, 1280 × 960@60 Hz, 1600 × 1200@60 Hz, 1280 × 720p@50 Hz, 1280 × 720p@60 Hz, 1920 × 1080p@50 Hz, 1920 × 1080p@60 Hz, 1920 × 1200@60 Hz, 3840 × 2160@30 Hz (only odd-numbered ports) Supports custom resolution. Width: 800 to 1920, pixel alignment: must be a multiple of 4 Height: 600 to 1200, pixel alignment: must be a multiple of 2 Resolution: 0.48 MP to 2.3 MP

Video Input Interface Type

HDMI 1.4

Max. Video Input Resolution

4K (Only odd-numbered ports)

Video Input Interfaces

Video Encoding

Video Encoding Channels

Video Encoding Capability

Sub-stream and main stream encoding; Sub-stream encoding contains: CIF(352 × 288)/FCIF(704 × 576), Main stream encoding contains: 720p(1280 × 720)/XVGA(1280 × 960)/ UXGA(1600 × 1200)/1080p(1920 × 1080)/XGA(1024 × 768)/ WXGA(1360 × 768)/SXGA(1280 × 1024)/SXGA(1400 × 1050)/ WSXGA(1440 × 900)/WSXGA+(1680 × 1050)/1920 × 1200/3840 × 2160

Video Output

Video Output Interface Type

HDMI 1.4

Video Output Interfaces

Max. Video Output Resolution

Video Output Resolution

XGA_60 Hz(1024 × 768@60 Hz)/SXGA_60 Hz(1280 × 1024@60 Hz)/ 720P_60 Hz(1280 × 720@60 Hz)/UXGA_60 Hz(1600 × 1200@60 Hz)/ WSXGA_60 Hz(1680 × 1050@60 Hz)/WUXGA_60 Hz(1920 × 1200@60 Hz)/ 1080P_60 Hz(1920 × 1080@60 Hz)/4K_30 Hz(3840 × 2160@30 Hz)

Loading Capacity for Video Output to LED

Loading per port: 2600000 Width: 288 to 3840; pixel alignment: must be a multiple of 2 Height: 288 to 2160; pixel alignment: must be a multiple of 2

Video Decoding

Video Decoding Format

H.264, H.265, Smart264, Smart265, MJPEG

Video Decoding Channels

128

Video Decoding Capability

H.264/H.265/Smart264/Smart265 format: 4 channels of 32 MP/24 MP, 8 channels of 16 MP, 10 channels of 12 MP, 16 channels of 8 MP, 20 channels of 6 MP, 32 channels of 4 MP, 64 channels of 1080p, or 128 channels of 720p/D1 or lower resolution (One group of 4 outputs shares decoding capability) MJPEG format: 8 channels of 2 MP

Audio Output

Audio Output Interfaces

Audio Output Interface Type

HDMI embedded

Encoding and Decoding/Audio Decoding

Audio Decoding Format

G711-A, G711-U, G722.1, G726-16/U/A, MPG, AAC-LC

Encoding and Decoding/Video Encoding

Video Encoding Format

H.265(default) , H.264