Description
ST-NSW941MV Quad Multiview HDMI Switcher is a professional 4K30 HDMI 4x1 Quad Multi-viewer & Seamless Switcher designed for professional AV applications. The ST-NSW941MV Quad Multiview HDMI Switcher supports four HDMI inputs, seamless switching, 8 multi-view display modes, up to 4K@30Hz output, RS-232 control, IR remote operation and advanced EDID management.
The ST-NSW941MV Quad Multiview HDMI Switcher is ideal for conference rooms, control rooms, broadcast studios, education, and professional AV installations.
Features
☆ HDCP 1.4 compliant
☆ Support 10.2Gbps video bandwidth
☆ Input and output resolution up to 4K@30Hz, as specified in HDMI 1.4b
☆ Support auto switching and manual switching
☆ Seamless switching between inputs and combined multiple images on single UHD monitor in multi-view display mode
☆ Seamless switching in single-view display mode
☆ Support 8 display modes: SINGLE, PIP, PBP (1), PBP (2), Triple (1), Triple (2), Quad (1), Quad (2)
☆ Support LPCM, DD, DD+, DTS audio channel
☆ Support audio de-embedding via the analog audio port
☆ Support independent audio selection
☆ Support OSD display in multi-view display mode
☆ Control via front panel button, IR remote and RS-232 commands
☆ Advanced EDID management
☆ Compact design for easy and flexible installation
The ST-NSW941MV Quad Multiview HDMI Switcher provides seamless HDMI switching, multiple display layouts, and reliable 4K video performance for demanding professional environments.
Package Contents
① 1x 4K30 HDMI 4×1 Quad Multi-viewer & Seamless Switcher
② 1x 5V/1A Multinational Power Supply
③ 1x IR Remote
④ 1x IR Receiver Cable (1.5m)
⑤ 2x Mounting Ear
⑥ 4x Machine Screw (KM3*4)
⑦ 1x 3pin-3.81mm Phoenix Connector (Male)
⑧ 1x User Manual
Specifications
| Technical | |
| Video Bandwidth | Up to 10.2Gbps |
| Video Resolution | Input: Up to 4K@30Hz Output: 720P@60Hz, 1080P@60Hz, 1920x1200P@60Hz, 4K@30Hz |
| HDMI Compliance | HDMI 1.4b |
| HDCP Compliance | HDCP 1.4 |
| Color Space | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit |
| Audio Formats | HDMI IN/OUT: LPCM 2.0, LPCM 5.1, Dolby 2.0, Dolby 5.1, Dolby Digital Plus, DTS 2.0, DTS 5.1 L/R OUT: PCM 2.0 |
| IR Frequency | Fixed Frequency 38kHz |
| IR Level | 5Vp-p |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge), ±4kV (Contact discharge) |
| Connection | |
| Input | 4x IN [HDMI Type A, 19-pin female] |
| Output | 1x OUT [HDMI Type A, 19-pin female] 1x L/R OUT [3.5mm stereo jack] |
| Control | 1x RS-232 [3pin-3.81mm Phoenix Connector] 1x IR EXT [3.5mm stereo jack] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | 176mm [W] × 68mm [D] × 18mm [H] |
| Weight | 300g |
| Power Supply | Input: AC 100~240V 50/60Hz, Output: DC 5V/1A (US/EU standards, CE/FCC/UL certified) |
| Power Consumption (Max) | 2.75W |
| 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) |
Designed for commercial AV applications, the ST-NSW941MV Quad Multiview HDMI Switcher offers advanced EDID management, RS-232 control, audio de-embedding, and flexible installation.
Recommended HDMI Cable
| Video Resolution | 4K@30Hz | 1080P 4:4:4 |
|---|---|---|
| HDMI Cable Length (IN/OUT) | 5m / 16ft | 10m / 33ft |
The use of "Premium High Speed HDMI" cable is highly recommended.
Operation Controls and Functions
Front Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | IR Window | IR signal receiving window. |
| 2 | POWER LED | Green ON: The device is powered on. Red ON: The device is in standby mode. |
| 3 | AUTO LED | When the auto switching mode is enabled, the green LED will be on. |
| 4 | IN 1/2/3/4 LED | Single-view mode: When the IN 1/2/3/4 port is selected as an input channel, the corresponding green LED will be on. Multi-view mode: When the IN 1/2/3/4 port is selected as an input audio source, the corresponding green LED will be on. |
| 5 | IN 1/2/3/4 Switch Button | Single-view mode: Press the button IN 1/2/3/4 to switch to the corresponding input channel. Multi-view mode: IN 1/2/3/4 corresponds to window 1/2/3/4. Pressing IN 1 switches the four input sources circularly to output on window 1. IN 2/3/4 operate the same way. |
| 6 | MV Button | Press to circularly switch the 8 display modes: SINGLE, PIP, PBP (1), PBP (2), Triple (1), Triple (2), Quad (1), Quad (2). |
| 7 | AUDIO Button | In multi-view mode, press to switch the audio of the four input sources circularly. |
| 8 | EDID DIP Switch | Used for EDID setting: 111 – Copy OUT port sink EDID 110 – 4K@30Hz, Audio 2.0ch PCM 101 – 4K@30Hz, Audio 5.1ch PCM 100 – 1080P, Audio 2.0ch PCM 011 – 1080P, Audio 5.1ch PCM 010 – 1920x1200, Audio 2.0ch 001 – 1920x1200, Audio 5.1ch 000 – Defined by RS-232 command |
Rear Panel
| No. | Name | Function Description |
|---|---|---|
| 9 | OUT Port | HDMI signal output port, connecting to a display device such as TV or Monitor with an HDMI cable. |
| 10 | IN 1/2/3/4 Port | HDMI signal input ports, connecting to source devices such as DVD or PS5 with an HDMI cable. |
| 11 | L/R OUT | PCM 2.0 analog audio output port. |
| 12 | RS-232 | Connects to a PC or control system for serial update and command control. |
| 13 | IR EXT | IR signal receiving port, connecting with the IR Receiver cable. If the IR signal receiving window is blocked or the unit is installed in a closed area out of infrared line of sight, the IR receiver cable can be inserted to this port to receive IR remote signals. |
| 14 | DC 5V | DC 5V/1A power input port. |
IR Remote
Power: Power on the device or set it to standby mode.
INPUT: In single-view mode, press to select the input source circularly.
HD 1/2/3/4: Single-view mode: press to switch to the corresponding HDMI input channel. Multi-view mode: HD 1/2/3/4 corresponds to window 1/2/3/4; pressing HD 1 switches the four input sources circularly to output on window 1.
MULTI-VIEWER: Press to select the multi-view display mode.
720P / 1080P / 1200P / 4K: Press to select the corresponding output resolution.
AUTO: Press to enable or disable auto switching for input signal sources.
AUDIO: In multi-view mode, press to switch the audio of the four input sources circularly.
MUTE: Press to enable or disable audio output.
OSD: Press to switch three OSD display states: no OSD, display current input channels, display current input channels and borders.
POS: Press to switch the position of PIP view: top left, bottom left, top right, bottom right.
SIZE: Press to switch the size of PIP view: large, middle, small.
16:9: Press to switch the aspect ratio between full-screen and 16:9.
RS-232 / API Control
Connect the RS-232 port to a PC with a 3-pin phoenix connector cable and RS-232 to USB cable. Use a Serial Command tool to send API commands.
Serial port protocol: Baud rate: 115200 (default); Data bit: 8; Stop bit: 1; Check bit: 0
| Command | Function | Example | Default |
|---|---|---|---|
| System Setting | |||
| help! | List all commands | help! | – |
| r fw version! | Get firmware version | r fw version! | – |
| r status! | Get device current status (power, video/audio crosspoint, EDID, scaler) | r status! | – |
| s power z! | Power on/off the device (z=0: off, z=1: on) | s power 1! | power on |
| r power! | Get current power state | r power! | – |
| s reboot! | Reboot the device | s reboot! | – |
| s reset! | Reset to factory defaults | s reset! | – |
| r type! | Get device model | r type! | – |
| Output Setting | |||
| s output res x! | Set output resolution (x=1: 4K@30Hz, x=2: 1080P@60Hz, x=3: 720P@60Hz, x=4: 1920x1200@60Hz) | s output res 1! | 3840x2160p30 |
| r output res! | Get output resolution | r output res! | – |
| Audio Setting | |||
| s output audio x! | Set output audio source (x=0: follow window 1, x=1~4: HDMI 1~4 input audio) | s output audio 0! | follow window 1 |
| r output audio! | Get output audio source | r output audio! | – |
| s output audio mute x! | Set output audio mute (x=0: mute off, x=1: mute on) | s output audio mute 0! | off |
| r output audio mute! | Get output audio mute status | r output audio mute! | – |
| EDID Setting | |||
| s input edid x! | Set HDMI input EDID mode (x=1: 4K30 2.0ch, x=2: 4K30 5.1ch, x=3: 1080p 2.0ch, x=4: 1080p 5.1ch, x=5: 1920x1200 2.0ch, x=6: 1920x1200 5.1ch, x=7: copy from HDMI out) | s input edid 1! | 4k30, 2.0ch |
| r input edid! | Get input EDID mode | r input edid! | – |
| Single-view Mode Setting | |||
| s in source x! | Route input source to output (x=1~4: HDMI 1~4) | s in source 1! | hdmi 1 |
| r in source! | Get output selected input source | r in source! | – |
| s auto switch x! | Enable/disable auto switch (x=0: disable, x=1: enable) | s auto switch 0! | auto switch off |
| r auto switch! | Get auto switch status | r auto switch! | – |
| Multi-view Mode Setting | |||
| s multiview x! | Set multi-viewer display mode (x=1: single, x=2: PIP, x=3: PBP, x=4: triple, x=5: quad) | s multiview 1! | single screen |
| r multiview! | Get multi-viewer display mode | r multiview! | – |
| s window x in y! | Select input (y=1~4) for display window (x=1~4) | s window 1 in 1! | – |
| r window x in! | Get window selected input source (x=0: all, x=1~4: window 1~4) | r window 1 in! | – |
| s window border y! | Set window border mode (y=0: off, y=1: on) | s window border 1! | off |
| s window x border color y! | Set border color for window x (y=1~9: black, red, green, blue, yellow, magenta, cyan, white, gray) | s window 1 border color 1! | yellow |
| s window source osd x! | Set window source OSD (x=0: off, x=1: on) | s window source osd 1! | off |
| s pip size x! | Set PIP window size (x=1: small, x=2: middle, x=3: large) | s pip size 3! | large |
| s pip position x! | Set PIP window position (x=1: left top, x=2: left bottom, x=3: right top, x=4: right bottom) | s pip position 3! | right top |
| s pbp mode x! | Set PBP display mode (x=1: PBP mode 1, x=2: PBP mode 2) | s pbp mode 1! | pbp mode 1 |
| s pbp aspect x! | Set PBP aspect ratio (x=1: full screen, x=2: 16:9) | s pbp aspect 1! | full screen |
| s triple mode x! | Set triple windows display mode (x=1: triple mode 1, x=2: triple mode 2) | s triple mode 1! | triple mode 1 |
| s triple aspect x! | Set triple windows aspect ratio (x=1: full screen, x=2: 16:9) | s triple aspect 1! | full screen |
| s quad mode x! | Set quad windows display mode (x=1: quad mode 1, x=2: quad mode 2) | s quad mode 1! | quad mode 1 |
| s quad aspect x! | Set quad windows aspect ratio (x=1: full screen, x=2: 16:9) | s quad aspect 1! | full screen |
Choose the ST-NSW941MV Quad Multiview HDMI Switcher for professional multi-view monitoring, HDMI source switching, and high-quality 4K30 video distribution.
The ST-NSW941MV Quad Multiview HDMI Switcher is the ideal solution for conference rooms, control rooms, education, and professional AV installations. The ST-NSW941MV Quad Multiview HDMI Switcher delivers reliable 4K30 HDMI switching, seamless multi-view display modes, advanced EDID management, and RS-232 control for professional audio-visual environments.
The ST-NSW941MV Quad Multiview HDMI Switcher is designed for professional AV installations, conference rooms, and control rooms.
The ST-NSW941MV Quad Multiview HDMI Switcher supports seamless 4K30 switching, multi-view display modes, RS-232 control, and advanced EDID management.
Choose the ST-NSW941MV Quad Multiview HDMI Switcher for reliable HDMI signal management and professional video distribution.
Application Example