Description
ST-NTWB14 Video Wall Controller is a professional 18Gbps 1x4 4K60 video wall controller designed for commercial AV installations, digital signage, control rooms, conference rooms, and retail displays. The ST-NTWB14 Video Wall Controller supports HDMI and USB-C inputs, 1x4 HDMI outputs, 4K60 4:4:4 video processing, multiple video wall modes, bezel correction, 180° image rotation, HDCP 2.2, EDID management, and RS-232 control. Designed for reliable 24/7 operation, the ST-NTWB14 Video Wall Controller delivers seamless video wall performance, flexible installation, and professional-quality image distribution. The ST-NTWB14 Video Wall Controller provides dependable 4K video processing for demanding AV applications.
Features
☆ HDCP 2.2 and DP 1.2a compliant
☆ Support video bandwidth up to 18Gbps, as specified in HDMI 2.0
☆ Support HDMI input and USB-C input with resolution up to 4K@60Hz 4:4:4
☆ Support optical audio and L/R analog audio de-embedding output
☆ Support 8 video wall splicing modes: 1x1, 2x1, 3x1, 4x1, 1x2, 1x3, 1x4, 2x2
☆ Support image 180° rotation, convenient for ceiling installation
☆ Support bezel adjustment for the splicing edge
☆ Advanced EDID management
☆ Control via front panel buttons, IR remote and RS-232 commands
☆ Simple plug and play, no driver or installation settings required
Package Contents
① 1x 18Gbps 1x4 Video Wall Controller
② 1x 12V/1A Locking Power Supply
③ 1x Power Adapter
④ 1x IR Remote
⑤ 1x 5V IR Receiver Cable (1.5m)
⑥ 1x 3pin-3.81mm Phoenix Connector (male)
⑦ 4x Machine Screw (KM3*4)
⑧ 2x Mounting Ear
⑨ 1x User Manual
The ST-NTWB14 Video Wall Controller is engineered for professional AV projects requiring reliable 4K60 video wall processing and flexible display management. The ST-NTWB14 Video Wall Controller simplifies multi-screen installations with advanced scaling, bezel correction, and multiple video wall layouts. Whether used in corporate, retail, education, or command center environments, the ST-NTWB14 Video Wall Controller delivers dependable performance, while the ST-NTWB14 Video Wall Controller ensures outstanding image quality for demanding applications.
Specifications
| Technical | |
| HDMI Compliance | HDMI 2.0b |
| HDCP Compliance | HDCP 2.2 |
| Video Bandwidth | 18Gbps |
| Video Resolution | Input: Up to 4K@60Hz 4:4:4 Output: 720P@60Hz, 1080P@60Hz, 4K@30Hz, 1024x768P@60Hz (XGA) |
| Color Space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| Audio Formats | HDMI IN/OUT: LPCM 2.0/5.1, Dolby Digital/Plus/EX, DTS, DTS-EX, DTS-96/24 L/R OUT: PCM 2.0 OPTICAL (S/PDIF): Dolby Digital/Plus, DTS 5.1, PCM 2.0 |
| Video Latency | No Latency |
| Audio Latency | No Latency |
| IR Level | 5Vp-p |
| IR Frequency | 38KHz |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge), ±4kV (Contact discharge) |
| Connection | |
| Input | 1x HDMI INPUT [Type A, 19-pin female] 1x USB-C INPUT [Type C, 24-pin female] |
| Output | 4x HDMI OUTPUT [Type A, 19-pin female] 1x OPTICAL AUDIO OUT [S/PDIF] 1x L/R AUDIO OUT [RCA] |
| Control | 1x RS-232 [3pin-3.81mm Phoenix connector] 1x IR EXT [3.5mm Stereo Mini-jack] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | 220mm [W] × 100mm [D] × 30mm [H] |
| Weight | 590g |
| Power Supply | Input: AC 100-240V 50/60Hz, Output: DC 12V/1A (US/EU standards, CE/FCC/UL certified) |
| Power Consumption (Max) | 5.5W (Max) |
| Operating Temperature | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature | -20°C ~ 60°C / -4°F ~ 140°F |
| Operating Humidity | 20%~90% RH (non-condensing) |
Operation Controls and Functions
Front Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | POWER Button | In shutdown/standby status, press this button to power on. In power-on status, press for 2–3 seconds to enter standby. |
| 2 | POWER LED | The LED lights green when the product is working normally, and red when the product is on standby. |
| 3 | HDMI LED | The LED lights green when the HDMI input is selected. |
| 4 | USB-C LED | The LED lights green when the USB-C input is selected. |
| 5 | AUTO LED | The LED lights green when auto switching is enabled. |
| 6 | IR Window | IR signal receiving window. |
| 7 | HDMI Button | Press this button to select the HDMI input channel. |
| 8 | USB-C Button | Press this button to select the USB-C input channel. |
| 9 | MODE Button | Press this button to switch between the 8 splicing modes circularly. |
| 10 | RES Button | Press this button to switch the resolution of the four HDMI outputs circularly. |
Rear Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | HDMI INPUT | HDMI signal input port, connected to an HDMI source device. |
| 2 | USB-C INPUT | USB-C signal input port, connected to a USB-C source device. |
| 3 | OPTICAL AUDIO OUT | Optical audio output port, connected to an audio output device such as an audio amplifier. |
| 4 | L/R AUDIO OUT | Analog audio output port, connected to an audio output device such as a speaker. |
| 5 | VIDEO WALL OUT (HDMI 1~4) | HDMI signal output ports, connected to TVs or display panels. |
| 6 | RS-232 | 3-pin Phoenix connector, connected to a PC or control system for serial port upgrade or RS-232 command control. |
| 7 | IR EXT | IR signal receiving port, connected with IR Receiver cable. Use this port when the front panel IR window is blocked or the unit is installed in a closed area out of infrared line of sight. |
| 8 | DC 12V | Connect to the 12V/1A power adapter. |
IR Remote
| Button | Function Description |
|---|---|
| Power | Power on the device or set it to standby mode. |
| HDMI | Press to select the HDMI input channel. |
| USB-C | Press to select the USB-C input channel. |
| AUTO | Press to enable or disable input auto switching. |
| Mute | Turn off/on audio output, including HDMI, Optical and L/R audio. |
| Rotation 1/2/3/4 | Press to switch the rotation angle between 0° and 180° for the corresponding output channel. |
| Resolution (720P / 1080P / 4K / XGA) | Press to switch the resolution for all 4 output channels simultaneously. |
| VIDEO WALL MODE (1×1, 2×1, 3×1, 4×1, 1×2, 1×3, 1×4, 2×2) | Press to select the desired video wall display mode. 8 splicing modes are available. |
| H-BEZEL / V-BEZEL ◄ ► | Press to adjust the horizontal or vertical bezels of the splicing images. |
Video Wall Splicing Modes
The video wall controller supports 8 splicing modes: 1×1, 2×1, 3×1, 4×1, 1×2, 1×3, 1×4, 2×2. Display modes can be set via front panel buttons, IR remote, or RS-232 commands.
Note: In video wall mode (except 1×1), only the screens selected for video wall splicing will display images, and their bezels can be adjusted.
IR Cable Pin Assignment
| Pin | Assignment |
|---|---|
| ① (Tip) | IR Signal |
| ② (Ring) | Power |
| ③ (Sleeve) | Grounding |
RS-232 Control Commands
Connect the RS-232 port to a PC using a 3-pin Phoenix connector cable and an RS-232 to USB cable. Open a Serial Command tool to send ASCII commands.
Serial port protocol: Baud rate: 115200 (default), Data bits: 8, Stop bits: 1, Check bit: 0. Commands end with "!" delimiter.
| Command | Function |
|---|---|
| help! | List all available commands |
| r status! | Get device current status (power, video wall mode, output resolution, etc.) |
| r type! | Get device model |
| r fw version! | Get firmware version |
| s power z! (z=0 off, z=1 on) | Power on or off the device |
| r power! | Get current power state |
| s reboot! | Reboot the device |
| s reset! | Reset to factory defaults |
| s input x edid z! (x=0~2, z=1~6) | Set input EDID mode. x=0: all, x=1: HDMI, x=2: USB-C. z=1: 4K60 2.0ch, z=2: 4K60 5.1ch, z=3: 4K30 2.0ch, z=4: 4K30 5.1ch, z=5: 1080p 2.0ch, z=6: 1080p 5.1ch |
| r input x edid! | Get input EDID mode |
| s output in source x! (x=1 HDMI, x=2 USB-C) | Route input source to output |
| s tw mode x! (x=1~8) | Set video wall display mode. x=1: 1×1, x=2: 2×1, x=3: 3×1, x=4: 4×1, x=5: 1×2, x=6: 1×3, x=7: 1×4, x=8: 2×2 |
| r tw mode! | Get current video wall display mode |
| s tw h bezel x! / s tw v bezel x! (x=0~10) | Set horizontal or vertical bezel value |
| s tw res x! (x=1~4) | Set output resolution. x=1: 1280×720p60, x=2: 1920×1080p60, x=3: 3840×2160p30, x=4: 1024×768@60 (XGA) |
| r tw res! | Get current output resolution |
| s output y rotate x! (y=1~4, x=0 or 1) | Set rotation for output y. x=0: 0° rotation, x=1: 180° rotation |
| s output audio mute x! (x=0 off, x=1 on) | Set output audio mute on or off |
| r output audio mute! | Get output audio mute status |
Recommended HDMI Cable Lengths
| Video Resolution | HDMI Cable Length (IN / OUT) |
|---|---|
| 4K60 | 8m / 26ft |
| 4K24 | 10m / 32ft |
| 1080P60 | 15m / 49ft |
The use of "Premium High Speed HDMI" cable is highly recommended.
The ST-NTWB14 Video Wall Controller is ideal for control rooms, command centers, digital signage, conference rooms, retail displays, education, and commercial AV environments. The ST-NTWB14 Video Wall Controller provides reliable 4K60 video wall processing with HDMI and USB-C connectivity, advanced bezel adjustment, and flexible installation options. Integrators choose the ST-NTWB14 Video Wall Controller for its dependable performance, easy operation, and professional video wall management.
The ST-NTWB14 Video Wall Controller is a reliable solution for professional video wall applications requiring high-quality 4K video distribution.
Application Example
