Description
ST-NMXB42LMV Video Matrix Switcher is a professional 4x2 HDMI seamless matrix switcher designed for 4K AV routing, multiview monitoring and conference room installations. The ST-NMXB42LMV Video Matrix Switcher supports 4K@60Hz 4:4:4, HDR10, HDR10+, HLG, Dolby Vision pass-through and HDCP 2.2 compliance. This ST-NMXB42LMV Video Matrix Switcher features four HDMI inputs, two HDMI outputs, four HDMI loop outputs and flexible display modes including Single, PIP, PBP, Triple, Quad and custom multiview layouts. The ST-NMXB42LMV Video Matrix Switcher also provides audio de-embedding, advanced EDID management, HDR to SDR conversion, RS-232 control, TCP/IP control and Web GUI operation. Choose the ST-NMXB42LMV Video Matrix Switcher for professional AV systems, classrooms, control rooms, training rooms and video conference rooms.
ST-NMXB42LMV Video Matrix Switcher supports resolutions up to 4K@60Hz 4:4:4 with seamless switching, multiview display, HDR support and HDCP 2.2 compliance.
This matrix switcher features four HDMI™ inputs and each input with loop out port for cascading connection.
This matrix switcher can be controlled via front panel buttons, remote control, API commands using RS-232 or TCP/IP. A Web server / GUI is built in that features A/V control, and input EDID management. The product is ideal for video conference rooms.
ST-NMXB42LMV Video Matrix Switcher Features
☆ Video resolutions up to 4K@60Hz 4:4:4, as specified in HDMI™ 2.0b
☆ HDCP 2.2 and HDCP 1.x compliant
☆ 4x2 seamless switching (single screen) and fast switching (multiview) function
☆ Seamless switching without black screen or tearing screen (matrix mode)
☆ Multiple multiview display modes: Auto/Single/PIP/PBP/Triple/Quad view and customized layouts
☆ Supports HDR10, HDR10+, HLG and Dolby Vision pass-through
☆ Supports HDR to SDR conversion
☆ Auto or manual switching mode
☆ Input: 4x HDMI™
☆ Output: 4x HDMI™ loop, 2x HDMI™, 1x Optical audio, 1x Analog audio
☆ Audio de-embedded
☆ Advanced EDID management
☆ Flexible control via front panel buttons, IR remote, RS-232, TCP/IP or Web GUI
ST-NMXB42LMV Video Matrix Switcher Package Contents
① 1x 4x2 Seamless Matrix Switcher
② 1x IR Remote Control
③ 1x IR Wideband Receiver Cable (1.5m)
④ 1x 3pin-3.5mm Phoenix Connector (male)
⑤ 1x 5pin-3.5mm Phoenix Connector (male)
⑥ 2x Mounting Ear
⑦ 8x Machine Screw
⑧ 1x Multinational AC Power Cord (1.5m, optional)
⑨ 1x User Manual
The ST-NMXB42LMV Video Matrix Switcher is built for stable signal distribution, seamless HDMI switching and reliable multiview output. With loop output support, IR remote control and Web GUI management, the ST-NMXB42LMV Video Matrix Switcher helps installers create flexible AV routing systems. The ST-NMXB42LMV Video Matrix Switcher is suitable for meeting rooms, lecture halls, monitoring rooms and professional AV integration projects.
ST-NMXB42LMV Video Matrix Switcher Specifications
| Technical | |
| Video Bandwidth | 18Gbps |
| HDMI Compliance | HDMI 2.0b |
| HDCP Compliance | HDCP 2.2 and 1.x |
| HDR | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| Input Video Resolution | 640×480p60Hz, 800×600p60Hz, 1024×768p60Hz, 1280×1024p60Hz, 1360×768p60Hz, 1440×900p60Hz, 1440×1050p60Hz, 1600×1200p60Hz, 480i59, 480p59, 576i50, 576p50, 720p50, 720p59, 720p60, 1080i50, 1080i59, 1080i60, 1080p23, 1080p24, 1080p25, 1080p29, 1080p30, 1080p50, 1080p59, 1080p60, 2160p23, 2160p24, 2160p25, 2160p29, 2160p30, 2160p50, 2160p59, 2160p60, 4096×2160p23.98Hz, 4096×2160p24Hz, 4096×2160p25Hz, 4096×2160p29.97Hz, 4096×2160p30Hz, 4096×2160p50Hz, 4096×2160p59.94Hz, 4096×2160p60Hz |
| Output Video Resolution | HDR Bypass Mode: Video passthrough from input. HDR to SDR Mode: 1024×768p60Hz, 1280×720p50/60Hz, 1280×800p60Hz, 1360×768p60Hz, 1920×1200p60Hz, 1080i50, 1080i60, 1080p50, 1080p60, 2160p25, 2160p30, 2160p50, 2160p60, 4096×2160p50Hz, 4096×2160p60Hz |
| Color Space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| Audio Formats (HDMI Passthrough) | LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD, DTS-HD Master Audio, DTS-96/24, DTS High Res |
| Audio Formats (Breakout) | Optical Out: Up to LPCM/Dolby/DTS 5.1CH Line Out: Only LPCM 2CH (sample rate 32~192kHz) |
| IR Level | 12Vp-p |
| IR Frequency | Wideband 20K–60KHz |
| Transmission Distance | HDMI passive cable: 9.8ft / 3m |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge), ±4kV (Contact discharge) |
| LINE Analog Audio Out | |
| Dynamic Range | >90dB @0dBu, 1kHz A-weighted |
| Audio S/N Ratio | >90dB @0dBu, 1kHz A-weighted |
| Output Level (Maximum) | 8.2dBu (2Vrms) @ balanced audio; 2.2dBu (1Vrms) @ unbalanced audio |
| Output Impedance | 600 Ohm balanced; 300 Ohm unbalanced |
| Audio Output Delay | <1ms |
| Audio THD+N | <0.01% @ +4dBu, 1kHz |
| Frequency Response | 20Hz to 20kHz (-/+0.5dB) |
| Connection | |
| Input Ports | 4× IN [HDMI Type A, 19-pin female] |
| Output Ports | 1× OUT 1 [HDMI Type A, 19-pin female, single/multiview output] 1× OUT 2 [HDMI Type A, 19-pin female, single screen output] 4× LOOP [HDMI Type A, 19-pin female] 1× LINE AUDIO OUT [5pin-3.5mm phoenix connector] 1× OPTICAL AUDIO OUT [S/PDIF] |
| Control Ports | 1× RS-232 [3pin-3.5mm phoenix connector, RS-232 API control] 1× LAN [RJ45 connector, TCP/IP and Web GUI] 1× SERVICE [USB-C with USB 2.0 only, 12-pin female, FW upgrade port] 1× IR EXT [3.5mm audio jack, IR IN 12V level] |
| Mechanical | |
| Housing | Front panel: Aluminum; Rear case: Metal Enclosure |
| Color | Black |
| Dimensions | 440mm [W] × 200mm [D] × 44mm [H] |
| Weight | 2.65kg |
| Power | |
| Power Supply | AC 100–240V 50/60Hz |
| Power Consumption | 61.6W (Max) |
| Environmental | |
| Operating Temperature | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature | -20°C ~ 60°C / -4°F ~ 140°F |
| Operating Humidity | 20%~80% (relative humidity, non-condensing) |
| Storage Humidity | 10%~90% (relative humidity, non-condensing) |
ST-NMXB42LMV Video Matrix Switcher Operation Controls and Functions
Front Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | LCD Screen | 1.8-inch LCD panel with 284×240 resolution and IPS. After powering on, the LCD screen will display the current input/output channel mapping of the matrix by default. Information such as EDID, output resolution, baud rate, and IP address can be displayed/set by pressing menu buttons. |
| 2 | IR Window | IR signal receiving window, receiving the IR remote signal to control certain functions of the machine. |
| 3 | LCD Screen Operation Buttons |
MENU: Press the MENU button to enter the primary menu, with five primary items (INPUT SETTINGS / OUTPUT SETTINGS / AUDIO BREAKOUT / SETUP / FIRMWARE), which can view/set various functions of the matrix, including input EDID, output resolution/HDR/mute/stream, audio source/mute, LCD on-time, baud rate, network configuration, reboot, reset and firmware version. UP: Press the UP button to select the previous item. DOWN: Press the DOWN button to select the next item. LEFT: Left directional operation button. RIGHT: Right directional operation button. ENTER: Press the ENTER button to confirm and take effect. Notes: Pressing the MENU button will return to the previous menu. In any level menu, it will return to the initial display screen if no operation goes on within 10 seconds. |
| 4 | Matrix Operation Buttons |
IN 1/IN 2/IN 3/IN 4: Input channel selection buttons. OUT 1/OUT 2: Output channel selection buttons. PRESET: Press the PRESET button to recall the presets circularly. FUNC: Function button. OUT + IN: Firstly press the OUT 1/2 button to select the output channel, then press the IN 1/2/3/4 button to select the input channel to complete the matrix mapping. For example, "OUT 1 + IN 1" indicates switching the input 1 signal source to output 1. FUNC + IN: Switch the input source to all outputs. For example, "FUNC + IN 1" indicates switching the input 1 signal source to all output ports. FUNC + FUNC + IN 1: View the IP address. FUNC + FUNC + IN 2: View the baud rate of the serial port. FUNC + FUNC + IN 3: Turn on signal management mode. FUNC + FUNC + IN 4: Turn off signal management mode. Note: The quick information will disappear automatically after being displayed for 3 seconds. |
| 5 | POWER Button | Short press the POWER button to power on the unit, the button light is off. Press and hold the POWER button for 3 seconds to enter standby mode; the red button light will illuminate. |
| 6 | LOCK Button | Press and hold the LOCK button for 3 seconds to lock front panel buttons (except the power button), the blue button light is on. Press again to unlock; the button light will turn off. |
| 7 | SERVICE Port | USB-C port with USB 2.0 only, used for firmware upgrade. |
Rear Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | IN 1/2/3/4 Ports |
INPUT: Four HDMI signal input ports, supporting auto switching, connected to HDMI source devices such as DVD or Blu-ray player with HDMI cable. LOOP: Four HDMI signal loop output ports, supporting bypass and downscale, connected to HDMI display devices such as TV or monitor with HDMI cable. |
| 2 | MULTIVIEW OUT 1 Port | HDMI signal output port, supporting single screen or multiview display. |
| 3 | SINGLE OUT 2 Port | HDMI signal output port, only supporting single screen display. Supports HDR bypass and HDR to SDR conversion. |
| 4 | OPTICAL Port | Optical fiber audio output port, supporting audio de-embedding up to 5.1CH. |
| 5 | LINE Port | Analog audio output port, supporting balanced/unbalanced 2CH audio output (with a maximum output level of 2Vrms). Balanced connection: L+, L–, GND, R+, R– Unbalanced connection: L+, GND, R+ |
| 6 | LAN Port | Ethernet port, used for TCP/IP and Web GUI control. • Green light on: The unit is linked with PC. • Green light off: The unit is not linked with PC. • Yellow light flashing: Data transmission in progress. • Yellow light off: No data transmission. |
| 7 | RS-232 Port | RS-232 serial port, with baud rate of 115200, used for upgrade and API command transmission. |
| 8 | IR EXT Port | IR signal receiving port, with a default IR level of 12V, connected with the 12V IR Receiver cable. If the IR signal receiving window of the unit 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 the "IR EXT" port to receive the IR remote signal. |
| 9 | GND | Connect the unit housing to ground. |
| 10 | Power Switch | Press the power switch to turn on/off the power. |
| 11 | Power Port | Universal AC power outlet, connected to the 100–240V AC 50/60Hz power supply. |
ST-NMXB42LMV Video Matrix Switcher IR Cable Pin Assignment
The pin assignment of the IR Receiver cable and IR Blaster cable is as below:
Note: When the angle between the IR receiver and the remote control is ±45°, the transmission distance is 0–5 meters; when the angle is ±90°, the transmission distance is 0–8 meters.
LCD Display Navigation
Various functions of the matrix can be set through the operation of buttons on the front panel, and the corresponding content can be displayed on the LCD screen. The LCD display navigation consists of five primary menus: INPUT SETTINGS / OUTPUT SETTINGS / AUDIO BREAKOUT / SETUP / FIRMWARE.
| Level 1 | Level 2 | Level 3 | Level 4 |
|---|---|---|---|
| INPUT SETTINGS | EDID | INPUT 1/2/3/4 | 1. Auto 2. Copy HDMI Out 1 3. Copy HDMI Out 2 4. 4K2K60_444 2.0CH 5. 4K2K60_444 5.1CH 6. 4K2K60_444 7.1CH 7. 4K2K30_444 2.0CH 8. 4K2K30_444 5.1CH 9. 4K2K30_444 7.1CH 10. 1080p60_444 2.0CH 11. 1080p60_444 5.1CH 12. 1080p60_444 7.1CH 13. 720P60_444 2.0CH 14. 1920×1200 2.0CH 15. 1680×1050 2.0CH 16. 1600×1200 2.0CH 17. 1440×900 2.0CH 18. 1360×768 2.0CH 19. 1280×1024 2.0CH 20. 1024×768 2.0CH 21. User Defined 1 22. User Defined 2 |
| OUTPUT SETTINGS | RESOLUTION | OUTPUT 1/2 | 1. Auto 2. 3840×2160p60 3. 3840×2160p50 4. 4096×2160p60 5. 4096×2160p50 6. 3840×2160p30 7. 1920×1080p60 8. 1920×1080p50 9. 1920×1080i60 10. 1920×1080i50 11. 1280×720p60 12. 1280×720p50 13. 1360×768p60 14. 1280×800p60 15. 1920×1200p60RB 16. 1024×768p60 |
| HDR | OUTPUT 2 | 1. HDR Bypass 2. HDR to SDR |
|
| MUTE | OUTPUT 1/2 | 1. ON 2. OFF |
|
| STREAM | OUTPUT 1/2 | 1. ON 2. OFF |
|
| AUDIO BREAKOUT | SOURCE | OPTICAL / LINE | 1. Follow HDMI Out 1 2. Follow HDMI Out 2 3. HDMI In 1 4. HDMI In 2 5. HDMI In 3 6. HDMI In 4 |
| MUTE | OPTICAL / LINE | 1. ON 2. OFF |
|
| SETUP | LCD ONTIME | OFF / ALWAYS ON / 15 SECONDS / 30 SECONDS / 60 SECONDS | |
| BAUD RATE | 4800 / 9600 / 19200 / 38400 / 57600 / 115200 | ||
| NETWORK | DHCP ON / DHCP OFF IP, Subnet Mask, Gateway, MAC |
||
| REBOOT | Are you sure you want to REBOOT the system? Yes, press "FUNC" / No, press "MENU" | ||
| RESET | Are you sure you want to RESET the system to default? Yes, press "FUNC" / No, press "MENU" | ||
| — | — | ||
| FIRMWARE | BOOT FW V1.00.XX MCU FW V1.00.XX WEB GUI V1.00.XX LCD FW V1.00.XX |
||
IR Remote
The matrix switcher supports two methods to receive the IR remote control signal.
Method 1: The IR window receives the IR remote signal. The furthest distance is 7 meters and the angle is ±45°.
Method 2: If the IR receiver window is blocked or the matrix switcher is installed in a closed area out of infrared line of sight, the IR receiver cable can be inserted to the "IR EXT" port. The furthest distance is 7 meters when the IR remote is directly faced to the IR receiver head.
| Button / Group | Function Description |
|---|---|
| Power | Press this button to power on the unit or set it to standby mode. |
| OUT 1 Buttons | |
| IN 1 / IN 2 / IN 3 / IN 4 | Press to select input source for the OUT 1 port. |
| AUTO | Press this button to enable/disable the auto switching function in single screen display mode. |
| ◄ ► | Press to circularly select the previous or next input source for OUT 1 in single screen display mode, or for WIN 1 in multiview display mode. |
| RES. | Press this button to cycle through the output resolution for the OUT 1 port. |
| PIP | Press this button to switch output 1 to PIP display mode. |
| PBP | Press this button to switch output 1 to PBP display mode. |
| TRIPLE | Press this button to switch output 1 to Triple display mode. |
| QUAD | Press this button to switch output 1 to Quad display mode. |
| OUT 2 Buttons | |
| IN 1 / IN 2 / IN 3 / IN 4 | Press to select input source for the OUT 2 port. |
| AUTO | Press this button to enable/disable the auto switching function. |
| ◄ ► | Press to circularly select the previous or next input source for the OUT 2 port. |
| RES. | Press this button to cycle through the output resolution for the OUT 2 port. |
| Preset Buttons | |
| PRESET 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 | Press to recall the saved preset scenes. |
Method 1: The IR window receives the IR remote signal. When using the IR remote, the furthest distance is 7 meters and the angle is ±45°. The diagram is shown as below:
Method 2: If the IR receiver window of the matrix switcher is blocked or the matrix switcher is installed in a closed area out of infrared line of sight, the IR receiver cable can be inserted to the "IR EXT" port to receive the IR remote signal. The furthest distance of using the IR remote is 7 meters when the IR remote is directly faced to the IR receiver head. The diagram is shown as below.
Multiview
The OUT 1 port of the matrix switcher supports multiple multiview display modes:
| Display Mode | Description |
|---|---|
| Auto | When the Auto mode is selected, the multiview display modes set through Web GUI will be recalled automatically. |
| Single | Single screen display mode. |
| PBP | Dual screen display modes, including Dual-LR and Dual-TB. |
| PIP | PIP screen display modes, including PIP-LT, PIP-LB, PIP-RT and PIP-RB. |
| Triple | Triple screen display modes, including Triple-L, Triple-R, Triple-T and Triple-B. |
| Quad | Quad screen display modes, including Quad-L, Quad-R, Quad-T, Quad-B and Quad-S. |
| Custom Layout | Five customized multiview display modes are supported. |
| Copy HDMI Out 2 | Copy the display mode selected by the OUT 2 port. |
Multiview window distributions are as following:
You can set/select multiview display modes for OUT 1 via Web GUI, IR remote control, or RS-232 commands.
RS-232 Control Command
The product also supports RS-232 command control. Connect the RS-232 port of the product to a PC with a 3-pin phoenix connector cable and a USB to RS-232 serial cable. The connection method is as follows.
Connection Diagram
1: General Application
2: Cascading Application
3: AV over IP Application
