ST-NMXC42A 8K HDMI 4x2 Matrix
ST-NMXC42A 8K HDMI 4x2 Matrix
This 8K HDMI 4x2 Matrix can not only switch any of the four HDMI input signals,
but also distribute it to two displays simultaneously. The video resolution is up to
8K@60Hz 4:2:0. It supports eARC function (only for INPUTS 1 port and OUT 1
port). Built-in EDID DIP switch supports advanced EDID management. It also
supports audio de-embedding function. As able to be used either as a splitter or
a switcher, this multi-functional product can be widely applied in scenarios of
demonstration, video conference, multimedia teaching and other occasions
requiring for big-screen demonstration.
Features
☆ HDMI 2.1 and HDCP 2.3 compliant
☆ Support 40Gbps video bandwidth
☆ Support video resolution up to 8K@60Hz 4:2:0 10bit, 8K@30Hz 4:4:4
10bit, 4K@120Hz 4:4:4 10bit
☆ VRR, FVA, ALLM supported
☆ Support HDR, HDR10, HDR10+, Dolby Vision, HLG pass through
☆ Support HDMI audio formats: LPCM, Dolby Digital/Plus/EX, Dolby True
HD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD
Master Audio, DSD
☆ INPUTS 1 port and OUT 1 port support eARC/ARC function
☆ Allows HD audio up to Dolby Atmos, DTS:X over TrueHD from ANY
external HDMI source to any eARC/ARC sound system
☆ Support audio de-embedding function (output through the optical and
analog port)
☆ Built-in EDID DIP switch supports advanced EDID management
☆ 8K->4K, 8K/4K->2K downscaler support
☆ Support IR remote control and front panel button switching
☆ Built-in Equalizer, Retiming and Driver
☆ Compact design for easy and flexible installation
Package Contents
① 1 × 8K HDMI 4x2 Matrix
② 1 × IR Remote
③ 1 × 5V/2A Multinational Power Supply
④ 1 × User Manual
Specifications
| Parameter | Description |
|---|---|
| Video | |
| HDMI Compliance | HDMI 2.1 |
| HDCP Compliance | HDCP 2.3 |
| Video Bandwidth | 40 Gbps |
| Video Resolution | Up to 8K@60Hz 4:2:0 10-bit, 8K@30Hz 4:4:4 10-bit, 4K@120Hz 4:4:4 10-bit |
| Color Space | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| HDR Support | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| Gaming Features | VRR, FVA, ALLM supported |
| Audio | |
| HDMI Audio Formats | LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| Optical Audio Output | Up to LPCM / Dolby / DTS 5.1 CH |
| Analog Audio Output | LPCM 2.0 CH |
| eARC / ARC | Supported on INPUTS 1 port and OUT 1 port |
| Connection | |
| Inputs | 4× HDMI IN (Type A, 19-pin female) |
| Outputs | 2× HDMI OUT (Type A, 19-pin female), 1× Optical (S/PDIF), 1× L/R (3.5mm Stereo Mini-jack) |
| Control | 1× SERVICE (Micro USB, firmware update port) |
| Recommended HDMI Cable Length | |
| 8K | Up to 3 m / 10 ft — Ultra High Speed HDMI 2.1 cable required |
| 4K@60Hz | Up to 8 m / 26 ft — HDMI 2.0 cable required |
| 4K@24Hz | Up to 12 m / 39 ft — HDMI 1.4 cable required |
| 1080P | Up to 15 m / 49 ft — HDMI 1.4 cable required |
| Protection | |
| ESD Protection | ±8 kV (Air-gap discharge), ±4 kV (Contact discharge) — Human body model |
| Physical | |
| Housing | Metal Enclosure — Black |
| Dimensions | 200 × 85 × 21 mm (W × D × H) |
| Weight | 411 g |
| Power | |
| Power Supply | Input: AC 100–240V 50/60Hz; Output: DC 5V/2A (US/EU standards, CE/FCC/UL certified) |
| Power Consumption | 2.05 W (Max) |
| Environment | |
| Operating Temperature | 0°C – 40°C / 32°F – 104°F |
| Storage Temperature | -20°C – 60°C / -4°F – 140°F |
| Relative Humidity | 20% – 90% RH (non-condensing) |
Operation Controls and Functions
| No. | Name | Function Description |
|---|---|---|
| 1 | IR Window | IR input signal receiving window. |
| 2 | POWER LED | Green: device is working normally. Red: device is in standby mode. |
| 3 | OUT 1 LED (1~4) | When INPUTS 1/2/3/4 is selected as the signal source for OUT 1, the corresponding green LED 1/2/3/4 will be on. |
| 4 | OUT 2 LED (1~4) | When INPUTS 1/2/3/4 is selected as the signal source for OUT 2, the corresponding green LED 1/2/3/4 will be on. |
| 5 | eARC LED | The eARC LED will be on when the eARC function is turned on. |
| 6 | eARC Button | Press to turn on/off the eARC function. |
| 7 | OUT 1~2 Button | Used to select the signal source for OUT 1/2. Press OUT 1/2 button to switch any of the four HDMI input signals to the corresponding output port. |
| 8 | CONFIG DIP Switch | Sets the working mode (x = 1 or 0): 1xx — Matrix mode 0xx — Splitter mode x11 — OUT 2 pass-through mode x10 — OUT 2 scaler mode (8K→4K) x01 — OUT 2 scaler mode (8K/4K→1080P) x00 — OUT 2 pass-through mode |
| 9 | EDID DIP Switch | Sets EDID mode: 111 — Copy OUT 1 port sink EDID (factory default) 110 — HDMI 1080p@60Hz, Audio 2ch PCM 101 — HDMI 4K@60Hz 4:4:4, Audio 2ch PCM 100 — HDMI 4K@60Hz 4:4:4, Audio 5.1ch PCM/DTS/Dolby 011 — HDMI 4K@60Hz 4:4:4, Audio 7.1ch PCM/DTS/Dolby/HD 010 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 2ch PCM 001 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 5.1ch PCM/DTS/Dolby 000 — HDMI 8K@60Hz 4:2:0 + 8K@30Hz 4:4:4, Audio 7.1ch PCM/DTS/Dolby/HD |
| 10 | SERVICE | Micro USB firmware update and debug port. |
| 11 | OUT (1~2) Port | HDMI output ports. Connect to HDMI display devices (e.g. TV, monitor) with HDMI cables. Note: When eARC is OFF, OUT 1 works as a standard output. When eARC is ON, connect OUT 1 (eARC) to an HDMI TV with eARC function. |
| 12 | INPUTS (1~4) Port | HDMI input ports. Connect to HDMI source devices (e.g. DVD, PS5) with HDMI cables. Note: When eARC is OFF, INPUTS 1 works as a standard input. When eARC is ON, connect INPUTS 1 (eARC) to a soundbar to output the audio signal returned from OUT 1 (eARC). |
| 13 | OPTICAL | Optical fiber audio output port (S/PDIF). Note: Muted when eARC function is turned on. |
| 14 | L/R | 3.5mm analog stereo audio output port. Note: Muted when eARC function is turned on. |
| 15 | DC 5V | DC 5V/2A power input port. |
IR Remote
| Button | Function Description |
|---|---|
| ① Power | Power on the device or set it to standby mode. |
| ② eARC | Press to turn on/off eARC function. When eARC is turned on, the eARC LED on the front panel will illuminate. |
| ③ OUT A / OUT B — 1/2/3/4 | Press 1, 2, 3 or 4 directly to select the relevant input source for OUT 1 / OUT 2 display. Or press ◄/► to select the previous or next input source. |
Application Example
Situation 1：
When the eARC function is turned off, the connection diagram is as following.
Situation 2：
When the eARC function is turned on, connect the “INPUTS 1 (eARC)” port to a Soundbar
to output the audio signal returned from the “OUT 1 (eARC)” port, the INPUTS 1 LED for
OUT 1 lights on, the connection diagram is as following.
Note:
(1) If the HDTV supports eARC/ARC function, the Soundbar will receive the audio signal
returned from the HDTV, and then emit the sound; otherwise it will not emit sound.
(2) If the HDTV supports eARC/ARC function, but the Soundbar only supports ARC function,
please turn off the eARC function of the HDTV.
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
