Description
ST-NPSB42H70 4x2 4K60 Seamless Presentation Switch supports video resolutions up to 4K@60Hz 4:4:4 8-bit deep color and HDCP 2.3. The ST-NPSB42H70 4x2 4K60 Seamless Presentation Switch features multi-view function for multiple sources on a single screen, two HDMI outputs, and one HDBaseT 3.0 output mirrored with HDMI OUT 2. This ST-NPSB42H70 4x2 4K60 Seamless Presentation Switch extends uncompressed 4K60Hz up to 132ft/40m or 4K30Hz/1080P60Hz up to 230ft/70m via single CAT6A cable. Each USB-C input supports DisplayPort Alternate mode A/V up to 4K@60Hz, USB 3.2 Gen 1 5Gbps data, up to 60W power charging, and 1Gbps Ethernet.
Features
☆ Video resolution up to 4K@60Hz 4:4:4, HDMI 2.0b, HDCP 2.3, DP 1.4 and HDBaseT 3.0 compliant
☆ USB 3.2 Gen 1 up to 5Gbps
☆ 4x2 seamless switching (single screen) and fast switching (multiview) function
☆ Manual switching or auto switching mode
☆ Multiple multiview display modes: Auto / Single / PIP / PBP / Triple / Quad / Custom
☆ Input: 2x USB-C, 2x HDMI, 1x Analog audio, 1x Dante 2ch
☆ Output: 1x HDMI, 1x HDMI + HDBaseT mirrored, 1x Analog audio, 1x Dante 2ch
☆ USB-C supports DisplayPort Alternate mode for A/V, USB 3.2, 1G LAN and 60W charging
☆ Local USB 3.2 switching and extending USB 2.0 over HDBaseT 3.0
☆ Local USB KVM hotkeys and mouse switching
☆ Uncompressed 4K60 4:4:4 over HDBaseT 3.0 up to 132ft/40m via single CAT6A cable
☆ Uncompressed 1080P & 4K30 over HDBaseT 3.0 up to 230ft/70m via single CAT6A cable
☆ Audio embedded and de-embedded; audio DSP for gain, equalizer, volume and delay
☆ Dante 2x2 audio input and output
☆ CEC/RS-232 control external devices ON/OFF with display auto power
☆ Advanced EDID management (17 modes including user-defined)
☆ Standard PoE power supply from TX to RX (TX_PSE, RX_PD)
☆ Flexible control via front panel buttons, IR remote, RS-232, TCP/IP or Web GUI
Package Contents
① 1x 4x2 Seamless Presentation Switch
② 1x HDBaseT Receiver
③ 1x IR Blaster Cable (1.5 metres)
④ 1x IR Wideband Receiver Cable (1.5 metres)
⑤ 3x 3pin-3.5mm Phoenix Connector (male)
⑥ 3x 5pin-3.5mm Phoenix Connector (male)
⑦ 4x Mounting Ear
⑧ 8x Machine Screw
⑨ 1x 24V/8A Desktop Power Supply & 1x AC Power Cord (1.5 metres)
⑩ 1x IR Remote
1x User Manual
Specifications
| Technical | |
| HDMI Compliance | HDMI 2.0b |
| HDCP Compliance | HDCP 2.3 |
| DP Version | DP 1.4 |
| Video Bandwidth | 18Gbps |
| Video Resolution | Up to 4K@60Hz 4:4:4 8-bit deep color |
| Color Space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| IR Level | 12Vp-p |
| IR Frequency | Wideband 20K–60KHz |
| USB Bandwidth | USB 3.2 Gen 1 up to 5Gbps |
| Network Bandwidth (LAN & USB-C) | 1Gbps |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge), ±4kV (Contact discharge) |
| Transmission Distance | |
| HDBaseT | 4K60: 131ft/40m | 1080P & 4K30: 230ft/70m (CAT6A F/FTP) |
| HDMI Cable | Up to 9.8ft/3m |
| USB-C Cable | Up to 9.8ft/3m |
| Audio | |
| Audio Formats | USB-C/HDMI/HDBT: Digital audio, 32–192kHz/24bit, LPCM 2CH LINE IN: Analog audio, Balanced/unbalanced 2CH, Max input level 2Vrms LINE OUT: Analog audio, Balanced 2CH (Max 2Vrms) / Unbalanced 2CH (Max 1Vrms) DANTE: Digital audio 2x2 in/out, LPCM 2CH, 44.1K–96KHz 16/24bit |
| Audio Sample Rate (Dante) | 44.1 / 48 / 88.2 / 96kHz at 24bit |
| Audio Network Bandwidth | 100Mbps |
| TX Line Input Level (Max) | 8.2dBu (2Vrms) @ balanced or unbalanced audio |
| TX Line Output Level (Max) | 8.2dBu (2Vrms) @ balanced audio | 2.2dBu (1Vrms) @ unbalanced audio |
| RX Line Output Level (Max) | 8.2dBu (2Vrms) @ balanced audio | 2.2dBu (1Vrms) @ unbalanced audio |
| Input Impedance | 10K Ohms |
| Output Impedance | 330 Ohms |
| Frequency Response | 20Hz to 20kHz (+0.5dB / -1dB) |
| Audio S/N Ratio | 93dB @ 2Vrms, 1kHz A-weighted |
| Audio THD+N | <0.1% @ 0dBV, 1kHz |
| Audio Output Sync Delay (TX) | 0 to 50ms |
| Audio Output Sync Delay (RX) | <1ms |
| Dante Audio Delay | 2 / 3 / 4 / 5 / 10ms |
| Transmitter (Switch) Connections | |
| Input | 2x HDMI IN [HDMI Type A, 19-pin female] 2x USB-C IN [Type C, 24-pin female, 60W charging] 1x LINE IN [5pin-3.5mm phoenix connector] 1x DANTE IN [RJ45] |
| Output | 2x HDMI OUT [HDMI Type A, 19-pin female] 1x HDBT OUT [RJ45, 48V PoE/PSE] 1x LINE OUT [5pin-3.5mm phoenix connector] |
| Control | 1x RS-232 [3pin-3.5mm phoenix connector] 1x RS-232 CTL [3pin-3.5mm phoenix connector] 1x LAN [RJ45, 1G] 2x USB 3.2 HOST [USB Type B, 9-pin female] 3x USB 3.2 DEVICES [USB Type A, 9-pin female] 2x USB 1.1 KVM [Type A, 4-pin female] 1x USB-C DEVICE [Type C, 24-pin female] 1x IR IN [3.5mm jack, 12V level] 1x IR OUT [3.5mm jack, 12V level] |
| HDBaseT Receiver Connections | |
| Input | 1x HDBaseT IN [RJ45, 48V PoE/PD] 1x HDMI IN [Type A, 19-pin female] |
| Output | 1x HDMI OUT [Type A, 19-pin female] 1x LINE OUT [5pin-3.5mm phoenix connector] |
| Control | 1x RS-232 [3pin-3.5mm phoenix connector] 1x USB HOST [Type B, 4-pin female] 2x USB DEVICES [Type A, 4-pin female] 1x SERVICE [Micro USB, 5-pin female] 1x IR IN [3.5mm jack, 12V level] 1x IR OUT [3.5mm jack, 12V level] |
| Mechanical | |
| Housing | Front panel: Aluminium; Rear case: Metal Enclosure — Black |
| Dimensions | Transmitter: 220mm [W] × 220mm [D] × 44.5mm [H] Receiver: 140mm [W] × 105mm [D] × 21.5mm [H] |
| Weight | Transmitter: 1.78kg | Receiver: 424g |
| Power Supply | Input: AC100–240V 50/60Hz; Output: DC 24V/8A (CE/FCC/UL certified) Receiver also supports PoE (through HDBaseT IN port) |
| Power Consumption (Max) | 170W |
| Operating Temperature | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature | -40°C ~ 60°C / -40°F ~ 140°F |
| Operating Humidity | 20%~80% (relative humidity, non-condensing) |
| Storage Humidity | 10%~90% (relative humidity, non-condensing) |
Operation Controls and Functions
Switch — Front Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | POWER Button | Press and hold for 3 seconds to enter standby mode (button light red). In standby mode, short press to power on (button light blue). |
| 2 | IR Window | IR signal receiving window for IR remote control. |
| 3 | OUT 1 Button | Press to select the input channel for HDMI OUT 1. Button light is on when OUT 1 is connected to a display device; off otherwise. |
| 4 | Input LEDs (USB-C 1 / USB-C 2 / HDMI 3 / HDMI 4 / AUTO) | USB-C 1/USB-C 2/HDMI 3/HDMI 4: Steady green = corresponding input is selected; off = not selected. AUTO: On when auto switching / automatic layout mode is active. |
| 5 | OUT 2 Button | Press to select the input channel for HDMI OUT 2. Button light is on when OUT 2 is connected to a display device; off otherwise. |
| 6 | USB DEVICES Ports 1/2 | USB 3.2 Gen 1 extension ports supporting 5V/900mA output. Connect USB 3.0 flash drives, cameras, printers, etc. |
| 7 | USB 1.1 KVM Ports | USB 1.1 device ports for keyboard and mouse, supporting hotkey function and 5V/500mA output. |
Switch — Rear Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | DANTE Port | Dante network port — connect to a network switch with other Dante devices. Supports both Dante audio receive and transmit. |
| 2 | LINE IN Port | Analog audio input (5pin-3.5mm phoenix connector). Balanced/unbalanced, max 2Vrms. Balanced: L+, L−, GND, R+, R− | Unbalanced: L+, GND, R+ |
| 3 | LINE OUT Port | Analog audio output (5pin-3.5mm phoenix connector). Balanced max 2Vrms / Unbalanced max 1Vrms. Balanced: L+, L−, GND, R+, R− | Unbalanced: L+, GND, R+ |
| 4 | IR IN Port | Connect the IR receiver cable — used for IR signal pass-through or controlling this product via IR remote. IR blaster pin 1: +, pin 2: −. IR receiver pin 1: IR Signal, pin 2: GND, pin 3: 12V. |
| 5 | IR OUT Port | Connect the IR blaster cable. The IR signal originates from the HDBaseT Receiver IR IN port. |
| 6 | RS-232 Port | RS-232 serial port with two functions: (1) RS-232 signal pass-through or control of external devices; (2) Valens firmware and hotkey function firmware update (switchable via API commands). |
| 7 | RS-232 CTL Port | RS-232 serial port for API command control and MCU update. Default baud rate: 115200 (8N1). TCP/IP port: 8000. |
| 8 | RESET Button | Press and hold for 5 seconds — all front panel LEDs flash at 1Hz. When LEDs stop flashing, unit has been restored to factory default settings. |
| 9 | LAN Port | 1G Ethernet port for TCP/IP and Web GUI. Connect to a router or network switch. Default IP: 192.168.0.100. |
| 10 | DC 24V Port | Connect the included DC 24V/8A power adapter. |
| 11 | USB DEVICES 3/4 Ports | USB 3.2 Gen 1 extension ports supporting 5V/900mA output. |
| 12 | USB-C 1/2 Ports | Multipurpose USB-C ports with four functions: (1) USB-C A/V signal input (DisplayPort Alternate mode, up to 4K@60Hz); (2) USB Host port (USB 3.2 Gen 1 5Gbps); (3) 60W charging to connected device; (4) USB-C network access (1Gbps Ethernet passthrough). |
| 13 | HOST 3/4 Ports | USB Host ports supporting USB 3.2 Gen 1 5Gbps. Connect to PC host for KVM functionality. |
| 14 | IN 3/4 Ports (HDMI) | HDMI signal input ports — connect to HDMI source devices (DVD, Blu-ray, PC) with HDMI cable. |
| 15 | OUT 1/2 Ports (HDMI) | HDMI signal output ports — connect to HDMI display devices (TV, monitor) with HDMI cable. |
| 16 | HDBT 2 Port | HDBaseT output port — connect to the HDBaseT IN port of the receiver with a CAT6A (F/FTP) cable. Supports PoE PSE to power the receiver. |
| 17 | Link Signal Indicator (Green) | On: Transmitter and Receiver connected and linked. Flashing: Link abnormal. Off: Not linked. |
| 18 | Data Signal Indicator (Yellow) | On: Video signal input with HDCP. Flashing: Video signal without HDCP. Off: No video signal. |
HDBaseT Receiver Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | Power LED (Red) | On when the receiver is powered on. |
| 2 | LINK LED (Green) | On: Good connection to transmitter. Flashing: Poor connection. Off: Not connected. |
| 3 | VIDEO LED (Green) | On: Video signal with HDCP. Flashing: Video signal without HDCP. Off: No video signal. |
| 4 | HDBT LED (Green) | On when the HDBaseT IN port is selected as the signal input channel. |
| 5 | HDMI LED (Green) | On when the HDMI IN port is selected as the signal input channel. |
| 6 | SELECT Button | Press to select the signal input channel (toggles between HDBaseT IN and HDMI IN). |
| 7 | IR IN Port | Connect the IR receiver cable — IR signal will be sent to the IR OUT port of the transmitter. |
| 8 | IR OUT Port | Connect the IR blaster cable — IR signal originates from the IR IN port of the transmitter. |
| 9 | DEVICES Ports (1/2) | USB 2.0 extension ports supporting 5V/500mA output. Connect whiteboard, mouse, keyboard, USB camera or other USB devices. |
| 10 | SERVICE Port | Micro USB port for firmware update. |
| 11 | HDBaseT IN Port | HDBaseT input port — connect to the HDBT 2 port of the transmitter with a CAT6A (F/FTP) cable. Supports PoE PD (can power the receiver). |
| 12 | Data Signal Indicator (Yellow) | On: Video signal with HDCP. Flashing: Video without HDCP. Off: No video signal. |
| 13 | Link Signal Indicator (Green) | On: Transmitter and Receiver linked. Flashing: Link abnormal. Off: Not linked. |
| 14 | HDMI IN Port | HDMI signal input — connect to HDMI source device with HDMI cable. |
| 15 | HOST Port | USB Host port supporting USB 2.0. Connect to PC for USB KVM over HDBaseT. |
| 16 | HDMI OUT Port | HDMI signal output — connect to HDMI display device (TV, monitor) with HDMI cable. |
| 17 | LINE OUT Port | Analog audio output (5pin-3.5mm phoenix connector). Balanced max 2Vrms / Unbalanced max 1Vrms. Balanced: L+, L−, GND, R+, R− | Unbalanced: L+, GND, R+ |
| 18 | RS-232 Port | RS-232 serial port for RS-232 signal pass-through or controlling external devices. |
| 19 | DC 24V Port | Connect the DC 24V power adapter. Note: The receiver can also be powered by PoE through the HDBaseT IN port. |
IR Remote Control
| Button / Group | Function |
|---|---|
| Power | Press to power on the switch or set it to standby mode. |
| OUT 1 — USB-C 1 / USB-C 2 / HDMI 3 / HDMI 4 | Select input source for OUT 1 in single screen display mode. Corresponding input LED lights green. |
| OUT 1 — Multiview (⊞) | Short press to cycle through multiview modes: Single → PIP → PBP → Triple → Quad. |
| OUT 1 — ◄ / ► | Cycle to previous or next input source for OUT 1 in single screen mode. |
| OUT 1 — AUTO | Enable/disable auto switching for OUT 1. |
| OUT 1 — RES. | Cycle through output resolution options for OUT 1. |
| OUT 1 — MUTE | Mute/unmute audio of OUT 1. |
| OUT 1 — VOL− / VOL+ | Decrease/increase audio output volume of OUT 1. |
| OUT 2 buttons | Same set of controls as OUT 1, applied to OUT 2 / HDMI/HDBT Out 2. |
| RX HDBT | Select the HDBaseT IN port as the signal source input channel of the receiver. |
| RX HDMI | Select the HDMI IN port as the signal source input channel of the receiver. |
| PRESET | Cycle through preset application scenes. |
IR Cable Pin Assignment
The pin assignment of the IR Receiver cable and IR Blaster cable is as below:
Multiview Display Modes
The presentation switch supports the following multiview display modes, selectable via Web GUI, IR remote, or RS-232 commands:
Auto — recalls the multiview display mode set in Web GUI automatically.
Single — single screen display.
PBP — dual screen side by side: Dual-LR or Dual-TB.
PIP — picture-in-picture: PIP-LT, PIP-LB, PIP-RT, PIP-RB.
Triple — triple screen: Triple-L, Triple-R, Triple-T, Triple-B.
Quad — quad screen: Quad-L, Quad-R, Quad-T, Quad-B, Quad-S.
Copy Output — copies the display mode of the other output port.
Custom — five user-customised window layouts (Custom 1–5) with free window size, position and source assignment.
Multiview window distributions are as following:
You can set/select multiview display modes via Web GUI. For details, please refer to the
Video and System interface operation of “10. Web GUI Operation Guide”.
In addition, you can select multiview display modes via IR remote control or RS-232
commands.
Keyboard & Mouse Hotkeys
Keyboard hotkeys (use Scroll Lock×2 or Ctrl×2 as the prefix):
Switch OUT 1 to input 1–4: prefix + 1 + [1/2/3/4]
Switch OUT 2 to input 1–4: prefix + 2 + [1/2/3/4]
Switch OUT 1 to next/previous input: prefix + 1 + Page Up / Page Down
Switch OUT 2 to next/previous input: prefix + 2 + Page Up / Page Down
Enable/Disable buzzer: prefix + F12
Note: Do not use the numeric keypad on the right of the keyboard.
Mouse hotkeys:
Double-click scroll wheel then right-click: Switch OUT 1 to next input.
Double-click scroll wheel then left-click: Switch OUT 2 to next input.
Web GUI
Default IP address: 192.168.0.100. Connect the LAN port to a PC on the same network segment and enter the IP in a browser. Default login credentials: Admin / 1234 and User / 1234. The Web GUI provides the following pages: Information, Preset (up to 8 scenes), Input (EDID/HDCP per port), Output (scaling/HDCP/on-off per output), Video (window layout, multiview, freeze, AV mute), Audio (matrix, input/output gain, GEQ, delay, Dante routing), USB (follow video / manual / auto switch), RS-232, Network, and System (auto switch, display control, CEC, fan, firmware update).
RS-232 Control
Connect the RS-232 CTL port to a PC using a 3pin-3.5mm phoenix connector cable and an RS-232 to USB cable. Default baud rate: 115200 (8N1). TCP/IP port: 8000. Full ASCII command set covers system settings, input/output control, video layout, audio matrix, USB switching, CEC, preset recall, and network configuration. Send the command "help" to retrieve the full command list.
Connection Diagram
