Dahua DSMS0105UHO-4K 1U Distributed Ultra HD Decoder

Name: Dahua DSMS0105UHO-4K 1U Distributed Ultra HD Decoder
Brand: Dahua
SKU: dahua-dsms0105uho-4k
Availability: InStock

Overview

The Dahua DSMS0105UHO-4K is a 1U AVoIP decoder that drives video walls and displays over an IP network. Its two HDMI 2.0 outputs run two 4K@60 signals at once, and an SFP fibre port and RJ45 port can work together for network redundancy. The fanless chassis suits quiet rooms. Control rooms, lecture halls and lobby walls in Doha can request a quote from SmartRooms Qatar.

What this 1U decoder does on a video wall

The Dahua DSMS0105UHO-4K is a 1U AVoIP decoder. It receives encoded video streams over an IP network and sends them to the screens connected to it, so a control room, lecture hall or lobby can show several sources on one display set without running a separate cable from each camera or computer to each screen. It decodes H.264 and H.265 streams and accepts RTSP and ONVIF feeds, as well as the manufacturer's private protocol.

Because the decoder works over the network rather than fixed cable runs, sources can be moved between screens from a workstation. Its one-click takeover lets an operator bring a chosen input onto the wall and control it from any workstation. The same hardware can also switch between KVM and splicing roles through a software upgrade, which helps when a site's needs change.

Outputs, decoding capacity and latency

Two HDMI 2.0 outputs that can carry two 4K@60 signals at once.
Real-time decoding of up to 2 channels at 7680 × 4320@30 fps, or 4 channels at 3840 × 2160@30 fps.
Output options of 3840 × 2160@60, 2560 × 1440@60, 1920 × 1080@60 and 1280 × 720@60.
End-to-end delay from capture through encoding, decoding and display output below 31 ms.
Splitting, windowing, roaming and overlays, with single-screen support for 64 channels of signal windowing.
Compatible with LCD, LED and DLP screens, with image synchronisation and no separate splicer required.

Network redundancy and day-to-day running

Each unit has a gigabit RJ45 port and a 1000M SFP optical port. Both can be connected at the same time, and hot standby keeps the unit online if one interface is disconnected. A 2-inch LCD shows the device name and IP address, so maintenance staff can identify a unit in a rack quickly. Reboot, upgrade and factory reset can be carried out remotely. The fanless design runs without fan noise, which suits boardrooms and lecture theatres where fans are noticeable.

Where it fits in Qatar

A government ministry in Doha setting up a situation room could feed camera and presentation sources onto a wall of narrow-bezel LCD panels, with the operator choosing what appears on each screen from a workstation. A private school in Al Wakrah fitting out an assembly hall could show a classroom stream on one screen and announcements on another. A logistics operator in the Industrial Area monitoring dock activity could show several camera feeds on one wall, with permissions set so only supervisors take control of sources.

What to plan before installation

Operating range is −10 °C to +45 °C at 10–95% humidity, non-condensing. Qatar summer heat can exceed 45 °C, so mount the unit in an air-conditioned comms room or a cooled cabinet.
Power input is 12 VDC, 3.0 A, with consumption up to 36 W. Confirm the power supply and its mains connection for your site in the quotation.
The unit occupies one rack unit, measures 44 mm high, 220 mm wide and 170 mm deep, and weighs 1.56 kg net.
Check switch capacity and cabling for the video streams, and plan a separate path for the second network link.

To request a quote for the DSMS0105UHO-4K, send SmartRooms Qatar your screen count, source list and a room sketch. Quotations are usually returned within one working day, and a free site survey can confirm the layout before any equipment is ordered. Request a quote today.

Highlights

Two HDMI 2.0 outputs carrying two 4K@60 signals at once
Decodes H.264 and H.265 via RTSP, ONVIF or private protocol
RJ45 and SFP gigabit links usable together for redundancy
Under 31 ms delay from capture to display output
Fanless design with 2-inch LCD showing device name and IP
Operating range of −10 °C to +45 °C

Estimated timeline

Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.

Specifications

27 specifications · Source: manufacturer · checked Oct 2026

Function5

Interoperability: RTSP; Private; ONVIF
Bit Rate Type: Composite stream; video stream
Decoding Capability: Decodes to 2-channel 7680 × 4320@ 30 fps videos, 3840 × 2160@ 60 fps videos or 4-channel 3840 × 2160@30 fps videos in real time. Performs H.264 and H.265 decoding (1080p@60 fps by default for output ports).
Decoding Resolution: Maximum 7680 × 4320@30 fps and lower resolutions
Output Display Resolution: HDMI: 3840 × 2160@60 fps; 2560 × 1440@60 fps; 1920 × 1080@60 fps; 1280 × 720@60 fps

System2

Main Processor: High-performance embedded processor
Operating System: Embedded Linux

Port12

Display Screen: 2" TFT screen
Button: 5 × Thin film buttons (reserved)
Video Output: 1 × HDMI 2.0; 1 × HDMI (reserved)
Audio Output: 1 × HDMI 2.0 (reserved); 1 × 3.5 mm JACK (reserved)
Audio Input: 1 × 3.5 mm JACK (reserved)
Two-way Audio: 1 × 3.5 mm earphone JACK (reserved); 1 × 3.5 mm microphone JACK (reserved)
Alarm Input: 2 (reserved)
Alarm Output: 2 (reserved)
Network Port: 1 × 10 M/100 M/1000 M self-adaptive RJ-45 Ethernet port; 1 × 1000 M SFP optical port; hot standby is supported
RS-232: 1 × DB9 (for device maintenance and debugging)
USB: 4 (2 × USB 2.0; 2 × USB 3.0)
RS-485: 1

General8

Power Supply: 12 VDC, 3.0 A
Power Consumption: ≤36 W
Operating Temperature: –10 °C to +45 °C (+14 °F to +113 °F)
Operating Humidity: 10%–95% (RH), non-condensing (86 kPa–106 kPa)
Product Dimensions: 44 mm × 220 mm × 170 mm (1.73" × 8.66" × 6.69") (H × W × D)
Packaging Dimensions: 92 mm × 373 mm × 323 mm (3.62" × 14.69" × 12.72") (H × W × D)
Gross Weight: 2.31 kg (5.09 lb)
Net Weight: 1.56 kg (3.44 lb)

Downloads

4 files from the manufacturer

PDF Datasheets Datasheet_DHI-DSMS0105UHO-4K.pdf 832 KB PDF Manuals & guides Distributed-UHD-Codec-(Seat-Management-System)_Users-Manual_V1.0.0.pdf 1.3 MB PDF Drawings & CAD DHI-DSMS0105UHO-4K_DIMENSIONS.pdf.pdf 176 KB DOCX Other documents DHI-DSMS0105UHO-4K_AE.docx.docx 35 KB

Questions about DSMS0105UHO-4K

What is the Dahua DSMS0105UHO-4K used for?

It is a 1U AVoIP decoder that takes encoded video streams from an IP network and shows them on video walls and displays. It suits control rooms, lecture halls and lobby walls where several sources must appear on one display set. It decodes H.264 and H.265 streams and accepts RTSP and ONVIF feeds alongside the manufacturer's private protocol.

How many 4K displays can one unit drive?

The unit has two HDMI 2.0 outputs, and both can carry 4K@60 at the same time, so one decoder drives two 4K@60 displays. Other output options are 2560 × 1440@60, 1920 × 1080@60 and 1280 × 720@60. For a larger wall, the number of decoders depends on layout and source count, so SmartRooms Qatar can size the system during a free site survey.

Does it support 8K video?

It decodes 8K input according to the specification, which lists up to 2 channels of 7680 × 4320@30 fps in real time, or 4 channels of 3840 × 2160@30 fps. The HDMI outputs top out at 4K@60, so an 8K source reaches the wall at up to 4K@60 output. Check your source format and wall resolution before ordering.

How much delay does the video path add?

The manufacturer states that the delay from video acquisition, encoding and decoding through to display output is less than 31 ms. That matters in control rooms in Doha where operators watch live feeds and respond quickly, and in lecture capture where the speaker and slides must stay in step. Actual latency also depends on your encoders, network and switches.

What happens if a network cable or fibre link fails?

The unit has one 10/100/1000M RJ45 port and one 1000M SFP optical port, and both can be connected at once for redundancy. Hot standby keeps the device connected if one interface is disconnected. This is useful in a hospital operations centre or a bank trading floor, where a dropped link would leave the wall blank during working hours.

Can it run in an unconditioned cabinet during Qatar summers?

No. Its operating range is −10 °C to +45 °C with 10–95% relative humidity, non-condensing. Qatar summer temperatures can exceed 45 °C, so install it in an air-conditioned comms room or a cabinet with cooling. The unit is fanless, which reduces noise, but that does not raise the temperature limit.

What power does it need?

The listed power supply is 12 VDC at 3.0 A, with consumption of up to 36 W. The data does not list a bundled adapter or a mains input, so ask SmartRooms Qatar to confirm the power supply for your site, including the 240 V, 50 Hz connection used in Qatar, before installation.

Will it work with LCD, LED and DLP video walls?

Yes. The decoder is compatible with LCD, LED and DLP screens and provides image synchronisation without a separate splicer. A hotel lobby in West Bay with an LED wall, for example, can use it for windowing and overlays without adding a splicing box. Confirm the screen model and input details during the quotation.

How does operator access control work?

Each account can be given its own permissions, set per node. Permissions separate push from takeover, and takeover rights can be view only or full control. Different users can log in at different seats, and one-click takeover lets an operator bring any of several inputs onto the wall from any workstation.

Can a remote computer use a USB drive connected to the decoder?

Yes, through USB pass-through. The decoder has two USB 2.0 and two USB 3.0 ports, and pass-through enables data transfer between a USB drive connected at the decoding node and a remote input computer. This suits training rooms in Education City where presenters need files moved from a local drive to the screen.

Can a school in Al Rayyan order this with a purchase order?

Yes. SmartRooms Qatar accepts purchase orders (LPOs) and government tenders, including Monaqasat, and payment can be made by bank transfer, cheque or purchase order. A school in Al Rayyan fitting out a central control room may need one unit, while a larger scheme can be quoted together. Quotations are usually returned within one working day.

Is this product covered by a warranty?

Products supplied by SmartRooms Qatar are covered by the manufacturer's warranty. The source data for this model does not list a warranty period, so the quotation will confirm the warranty terms that apply. Ask for those details before you approve a purchase order.