Video wall · Controller
Video Wall Controller and Decoding Server
A modular 14-slot chassis with 4K@60Hz decoding cards, taking cameras, recorders, analogue encoders and computer signals and turning them into one wall.
- Modular 14-slot chassis
- 2 × HDMI 2.0 4K@60Hz per card
- Up to 72 × D1 on one card
- 96 Gbps switch backplane
What the controller does that a recorder output cannot
A recorder can put a sixteen-way split on one monitor. It cannot drive sixteen separate panels, splice one image across a 4×4 wall, keep an operator's window layout stable across a shift, or mix IP cameras, analogue encoders and a computer desktop on the same canvas. That is the controller's job.
The difference matters most when the wall is not a grid of separate pictures. The moment an operator wants one incident enlarged across four panels while the rest of the wall stays on status views, a recorder output stops being enough.
Why the capacity comes in cards
Each card carries two HDMI 2.0 outputs at 4K@60Hz, one HDMI input and one audio input and output. Decoding capacity per card scales from a single 3200W channel down to 72 D1 channels, and a card can drive two 36-split layouts at the same time.
Because capacity is per card, the wall is sized by counting the panels and the streams rather than by picking a model number. A 2×2 wall needs around two cards, a 3×3 around five and a 4×4 around eight, leaving the remaining slots for input cards or for growth.
Optional input cards accept HDMI signals, so a computer desktop or a set-top box output can be shown on the wall alongside the cameras. Encoded inputs can be password-protected before they are made available externally.
The backplane keeps streams apart
The chassis uses a dual 24-port full-gigabit switch backplane, with 96 Gbps of bandwidth and a 72 Mpps forwarding rate. Decoded camera traffic and splicing-image traffic are physically separated on that backplane, which is what stops a busy camera group from interfering with the image being sent to the wall.
Each card carries a 100/1000 Mbps adaptive network port, with an optional fibre port for installations where the controller sits some distance from the network core. Streams are accepted over GB28181, ONVIF, RTSP and DDNS, and the platform can also take devices through an SDK integration route.
Day-to-day operation
Operators work from the client software and a network keyboard, with the wall laid out into named windows rather than anonymous tiles. Regional and azimuth overlays can be placed on the wall, and camera IP and channel characters can be shown alongside each image, which matters when two feeds from the same car park look identical at a glance.
The platform also monitors its own network links in real time and reports a broken connection, so a camera that drops off the wall is visible as a fault rather than as a black tile nobody notices during a quiet shift.
Technical specifications
YK1000 decoding server card and chassis
| HDMI Outputs per Card | 2 x HDMI 2.0, 4K@60Hz (3840x2160@60Hz) |
|---|---|
| HDMI Input per Card | 1 x, supports 4K@60Hz and below |
| Audio | 1 x audio input, 1 x audio output per card |
| Output Division | 1 / 4 / 6 / 8 / 9 / 10 / 16 / 25 / 36 divisions, irregular switching supported |
| Decoding per Card | 72 x D1, or 32 x 720P, or 24 x 1080P, or 8 x 500W, or 2 x 1200W / 4K, or 1 x 3200W |
| Simultaneous Layouts | Two 36-split layouts per card |
| Video Decoding Standards | H.265+ / H.265 Main Profile Level 5.1; H.264 Baseline / Main / High Profile Level 5.0; MPEG4 SP L0-L3 / ASP L0-L5; MJPEG / JPEG Baseline |
| Video Encoding | H.265+ / H.265 / H.264 Baseline / Main / High Profile Level 5.1 on encoded inputs |
| Input Resolution (encoded) | 4K@60Hz, 1080P@60Hz, 1366x768@60Hz, 720P@60Hz, with automatic coding resolution adjustment |
| Audio Formats | G.711A, G.711U, AAC, G.722, G.726; active and passive decoding; two-way voice intercom |
| Stream Access | GB28181, ONVIF, RTSP, RTP, TS, DDNS; SDK integration available |
| Network Port | 100 / 1000Mbps adaptive per card; optional 100base-FX / 1000base-X optical port |
| Backplane | Dual 24-port full-gigabit switch backplane; 96Gbps bandwidth; 72Mpps forwarding rate |
| Stream Isolation | Decoded IPC traffic and splicing-image traffic are physically separated on the backplane |
| OSD | Regional name and azimuth OSD overlay; IP address and channel characters shown on the wall |
| Line Monitoring | Automatic real-time detection of network link failure |
| Client Access | Web browser B/S architecture, 4 to 20 simultaneous real-time decoded views |
| Analogue Sources | AHD / CVI / TVI and BNC analogue inputs supported through add-on encoders |
| Other Inputs | Computer desktop, set-top box output, HDMI and VGA signals via optional cards |
| Memory After Power Loss | Coding auto-reconnect with power-off memory preservation |
| Stream Security | Encoded streams can be password-protected before external access |
Specifications are taken from the manufacturer data sheet for the model listed. Where a figure depends on the configuration you order, we confirm it in writing on the quotation rather than leaving it implied.
Selection guide
| Layout | Panels | Cards | Slots left in a 14-slot chassis |
|---|---|---|---|
| 2×2 | 4 | 2 | 12 |
| 3×3 | 9 | 5 | 9 |
| 4×4 | 16 | 8 | 6 |
| Mixed with video inputs | Per design | 8 plus 1–2 input cards | 4 to 5 |
Frequently asked questions
How many cards does my wall need?
Count the panels and the streams. A 2×2 wall needs around two cards, a 3×3 around five and a 4×4 around eight, because each card drives two 4K@60Hz outputs and carries substantial decoding capacity. Send us the layout and the number of streams you want visible simultaneously and we will confirm the count.
Does each card really decode 72 channels?
It decodes up to 72 channels at D1 resolution. The figure falls as resolution rises — roughly 24 channels at 1080P, 8 at 500W, or two at 1200W/4K. The practical number for your wall depends on what the streams are, which is why the layout and the camera resolutions decide the card count rather than the channel total.
Can it show a computer desktop on the wall?
Yes. Optional HDMI input cards accept computer desktop and set-top box signals, and 4K@60Hz inputs can also be encoded back onto the wall. That is what lets a control room show a SCADA screen, a map or a presentation alongside the camera views without a separate switcher.
What happens if a card fails?
Only the panels driven by that card are affected. The rest of the wall keeps working, and the failed card can be replaced in its slot without dismantling the chassis. On a continuously watched wall that isolation is worth more than a marginally lower purchase price for a fixed-output controller.
Does it work with cameras that are not Ansivue?
Yes. Streams are accepted over ONVIF, RTSP and GB28181, which covers the great majority of IP cameras and recorders. This is the usual situation on an upgrade — the wall and the controller are new while the cameras are existing, and the platform brings them onto the wall without replacing them.
How far can the controller be from the wall?
HDMI distance limits apply and they fall as resolution rises, which is a real constraint at 4K@60Hz. Place the chassis close to the panel row where possible, or use the optional optical network port to bring the streams to a chassis that sits near the wall rather than pulling long HDMI runs across the room.
Plan Your CCTV or Video Wall Project
Send us the building type, floor count and camera estimate — we will come back with a system layout, a bill of materials and a price.