Description
The ST-NMXB88H150 HDBaseT Matrix 18Gbps 8x8 (150M) can connect 8 HDMI™ sources to 16 displays. It features 8 HDMI™ outputs, each mirrored to a simultaneous CAT-cable HDBaseT output capable of extending video transmission up to 492ft/150m (1080P) or 394ft/120m (4K2K) via a single CAT 5e/6/7 cable. The ST-NMXB88H150 HDBaseT Matrix 18Gbps 8x8 (150M)product supports video resolution up to 4K2K@60Hz 4:4:4, audio de-embedding to analog and coaxial audio, and an independent 4K2K to 1080P downscaler per output. With IR matrix control, advanced EDID management, CEC control, and 24V PoC on all HDBaseT ports, the ST-NMXB88H150 HDBaseT Matrix is suitable for a vast range of professional AV installations.The ST-NMXB88H150 HDBaseT Matrix delivers the following key features:
ST-NMXB88H150 HDBaseT Matrix Features
☆ HDCP 2.2 and HDCP 1.x compliant
☆ ST-NMXB88H150 HDBaseT Matrix Video resolution up to 4K2K@60Hz (YUV 4:4:4) on all HDMI™ & HDBaseT ports, as specified in HDMI™ 2.0b
☆ 8x HDMI™ inputs, 8x HDMI™ & HDBaseT mirrored outputs
☆ HDMI™ ports transmit 18Gbps lossless uncompressed video bandwidth
☆ ST-NMXB88H150 HDBaseT Matrix Support 18Gbps lossless compressed HDBaseT signal transmission
☆ Support 4K→1080P Down Scaler for each output port independently
☆ HDR, HDR10, HDR10+, Dolby Vision, HLG supported
☆ HDBaseT output extends video transmission up to 492ft/150m (1080P) or 394ft/120m (4K2K) via a single CAT 5e/6/7 cable
☆ HDMI™ audio pass-through up to 7.1CH HD audio (LPCM, Dolby TrueHD and DTS-HD Master Audio)
☆ST-NMXB88H150 HDBaseT Matrix Support IR matrix with bi-directional IR control
☆ Audio de-embedding via analog and coaxial ports
☆ Advanced EDID management and CEC control supported
☆ 24V PoC on all HDBaseT ports
☆ 2U rack mounted design with front panel OLED display
☆ Control via front panel buttons, IR remote, RS-232, LAN and Web GUI
ST-NMXB88H150 HDBaseT Matrix Package Contents
① 1xST-NMXB88H150 HDBaseT Matrix 18Gbps 8x8 HDBaseT (150M) Matrix
② 8x HDBaseT Receiver
③ 1x Matrix IR Remote
④ 1x 100~240V AC 50/60Hz Power Cable
⑤ 1x RS-232 Serial Cable (1.5 meters, male to female)
⑥ 8x 3-pin Phoenix Connector & 8x 5-pin Phoenix Connector
⑦ 9x IR Blaster Cable (1.5 meters)
⑧ 9x IR Receiver Cable (1.5 meters)
⑨ 18x Mounting Ear (Matrix and Receiver)
⑩ 1xST-NMXB88H150 HDBaseT Matrix User Manual
ST-NMXB88H150 HDBaseT Matrix Specifications
| Technical | |
| HDMI™ Compliance | HDMI™ 2.0b |
| HDCP Compliance | HDCP 2.2 and HDCP 1.x |
| Video Bandwidth | 18Gbps |
| Video Resolution | Up to 4K2K@50/60Hz (4:4:4) |
| Color Space | RGB 4:4:4, YCbCr 4:4:4 / 4:2:2 / 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit (1080p@60Hz) 8-bit (4K2K@60Hz YUV 4:4:4) 8-bit, 10-bit, 12-bit (4K2K@60Hz YCbCr 4:2:2/4:2:0) |
| HDR Support | HDR10, HDR10+, Dolby Vision, HLG |
| HDMI™ Audio Formats | LPCM 2.0/2.1/5.1/6.1/7.1, Dolby Digital, Dolby TrueHD, Dolby Digital Plus (DD+), DTS-ES, DTS HD Master, DTS HD-HRA, DTS-X |
| Coax Audio Formats | PCM 2.0, Dolby Digital / Plus, DTS 2.0/5.1 |
| Analog Balanced Audio Formats | PCM 2.0CH |
| Frequency Response | 20Hz ~ 20kHz ±0.5dB |
| Audio SNR | >90dB |
| Audio THD+N Ratio | <0.1% (V_max) / 0.001%~0.01% (V_best) |
| Crosstalk | >80dB |
| Max Output Level | 2Vrms |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge), ±4kV (Contact discharge) |
| Connection — Matrix | |
| Inputs | 8x HDMI™ INPUT [Type A, 19-pin female] |
| Outputs | 8x HDMI™ OUTPUT [Type A, 19-pin female] 8x HDBaseT port [RJ45] 8x Coaxial audio [3.5mm Stereo Mini-jack] 8x Balanced analog audio [5-pin Phoenix connector] |
| Control | 9x IR IN [3.5mm Stereo Mini-jack] 9x IR OUT [3.5mm Stereo Mini-jack] 1x TCP/IP [RJ45] 1x RS-232 [D-Sub 9] |
| Transmission Distance | HDBaseT: Up to 492ft/150m @ 1080P60 via CAT 5e/6/7 HDBaseT: Up to 394ft/120m @ 4K2K via CAT 5e/6/7 HDMI™: Up to 50ft/15m @ 1080P60 | 16ft/5m @ 4K60 | 32ft/10m @ 4K30 |
| Connection — HDBaseT Receiver | |
| Input | 1x HDBT IN [RJ45, 8-pin female] |
| Outputs | 1x HDMI™ OUT [Type A, 19-pin female] 1x AUDIO OUT [3.5mm Stereo Mini-jack] |
| Control | 1x IR IN [3.5mm Stereo Mini-jack] 1x IR OUT [3.5mm Stereo Mini-jack] 1x RS-232 [3-pin Phoenix connector] 1x SERVICE [Mini-USB, firmware update port] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | Matrix: 440mm [W] × 374mm [D] × 88.6mm [H] (2U rack mount) Receiver: 140mm [W] × 65mm [D] × 18mm [H] |
| Weight | Matrix: 6.54kg | Receiver: 155g |
| Power Supply | AC 100–240V, 50/60Hz |
| Power Consumption (Max) | 125W |
| 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-NMXB88H150 HDBaseT Matrix Operation Controls and Functions
Matrix — Front Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | OLED Screen | Displays matrix switching status, input/output port assignments, EDID settings, baud rate, and IP address. |
| 2 | Power LED | Green ON: The product is working normally. Red ON: The product is in standby mode. |
| 3 | OUTPUT / INPUT Buttons | Press an OUTPUT button (1–8) first, then press an INPUT button (1–8) to assign the corresponding input source to that output port. |
| 4 | MENU / ENTER / UP / DOWN Buttons |
EDID Setting: Press MENU to enter "Select EDID", use UP/DOWN to select an EDID, press ENTER to enter "Copy to Input:", use UP/DOWN to select the input port, press ENTER to confirm. Baud Rate Setting: Press MENU twice to enter "SELECT BAUD", use UP/DOWN to select baud rate, press ENTER to confirm. IP Address Check: Press MENU three times to view the current IP address. Use UP/DOWN to toggle DHCP ON/OFF, press ENTER to confirm. Press MENU again to return to the initial screen. |
| 5 | POWER Button | Press and hold for 3 seconds to enter standby mode. Press again to wake the device. |
| 6 | LOCK Button | Press to lock all front panel buttons (except POWER). Press again to unlock. |
| 7 | IR Window | IR receiver window. Receives IR remote signals for this product only. |
Matrix — Rear Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | INPUT (1–8) Ports | HDMI™ signal input ports. Connect to HDMI source devices (e.g. DVD player, PC, set-top box) with HDMI cables. |
| 2 | IR OUT (1–8/ALL) Ports | Connect with IR blaster cable. The IR emit signal originates from the IR IN port of the corresponding HDBaseT Receiver. |
| 3 | AUDIO OUT (1–8) Ports | 8 groups of coaxial and balanced analog audio mirrored output ports. AUDIO OUT (1–8) follows the video output of OUTPUT (1–8) ports. |
| 4 | CONTROL Ports |
TCP/IP: Link port for TCP/IP control. Connect to an active Ethernet network with an RJ45 cable. RS-232: Command control port. Connect to a PC or control system with a D-Sub 9-pin cable. |
| 5 | GND | Connect the housing to ground. |
| 6 | POWER Input | Power port: Connect to 100–240V AC 50/60Hz power cable. Power switch: Press to turn power on/off. |
| 7 | OUTPUT (1–8) Ports |
HDMI™: HDMI signal output ports. Connect to HDMI display devices (e.g. TV, monitor) with HDMI cables. HDBT: Mirrored HDBaseT output ports. Connect to HDBaseT Receivers via CAT 5e/6/7 cable. |
| 8 | IR IN (1–8/ALL) Ports | Connect with IR receiver cable. The received IR signal is emitted to the IR OUT port of the corresponding HDBaseT Receiver. |
HDBaseT Receiver Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | Power LED | Red LED illuminates when the receiver is powered on. |
| 2 | SERVICE Port | Mini-USB port used for firmware update. |
| 3 | DC 24V | DC 24V/1A power supply input port. Note: The Matrix supports PoC function — if either the Matrix or Receiver is powered by the 24V/1A adapter, the other device does not require a separate power supply. |
| 4 | HDBT IN | RJ45 connector for connecting to the HDBT OUTPUT port of the Matrix via CAT cable. Connection LED (left): ON = good connection; Flashing = poor connection; OFF = not connected. Data LED (right): ON = HDMI signal with HDCP; Flashing = HDMI signal without HDCP; OFF = no HDMI signal. |
| 5 | OUT | HDMI™ signal output port. Connect to an HDMI display device such as a TV or monitor with an HDMI cable. |
| 6 | AUDIO OUT | 3.5mm analog audio output port. Audio is extracted from the HDMI signal. |
| 7 | IR IN | Connect with IR receiver cable. The received IR signal is emitted to the IR OUT port of the Matrix. |
| 8 | IR OUT | Connect with IR blaster cable. The IR emit signal originates from the IR IN port of the Matrix. |
| 9 | RS-232 | Connect to a PC or control system with a 3-pin Phoenix connector cable to transmit commands between the Matrix and HDBaseT Receiver. |
IR Remote
① Power on or Standby: Power on the Matrix or set it to standby mode.
② Input 1/2/3/4/5/6/7/8: Select input source button.
: Select the previous or next input source button.
③ Output 1/2/3/4/5/6/7/8 button: Select output source button.
All: Select all output source simultaneously. For example, when you press the “All” button
and then press input “1” button, at this time the input “1” source will output to all display
devices.
Operation instruction: You need to press the output button firstly and then press input
button to select the corresponding input source. For example,
Press Output-X
(X means output button from 1 to 8 , including “All” button)
Then press Input-Y
(Y means input button from 1 to 8 )
IR Control System
The product is not only a matrix switch but also an extender. It supports bi-directional IR
control. When Matrix is connected to HDBaseT Receiver through Cat 5e/6/7 cable, you
can control remote display device (HDBaseT) or input source device (Matrix) through IR
signal transmission. But you must note that the IR signal transmission method is different
from the method from Matrix (local) to HDBaseT Receiver (remote) and from HDBaseT
Receiver (remote) to Matrix (local).
At the Matrix end (Local end): the IR signal is one-to-one transmission. For example,
the IR IN 1 port signal of the Matrix will emit to IR OUT port of the HDBaseT Receiver 1,
and the IR IN 3 port signal of the Matrix will emit to IR OUT port of the HDBaseT Receiver
3. It doesn’t follow the video switch to change. IR IN ALL port signal of the Matrix will emit
to all IR OUT ports of HDBaseT receivers simultaneously. Please see the following connection
diagram.
At HDBaseT receiver (Remote end): IR signal follows video switch to change. For example,
the HDMI output signal on the HDBaseT Receiver 1 is from the HDMI INPUT 2 port, so IR
input signal of the HDBaseT Receiver 1 will emit to IR OUT 2 port of the Matrix. The HDMI
output signal on the HDBaseT Receiver 5 is from the HDMI INPUT 4 port. Then, IR input
signal of the HDBaseT Receiver 5 will emit to IR OUT 4 port of the Matrix etc. Any of
HDBaseT Receiver’s IR IN signal can output from IR OUT ALL port of the Matrix and the
IR OUT ALL signal of the Matrix depends on your IR remote of source device. Please see
the following connection diagram.
IR Cable Pin Assignment
EDID Management
This Matrix features 21 factory-defined EDID settings, 2 user-defined EDID modes, and 16 copy EDID modes. EDID can be configured via front panel buttons, RS-232 control, or Web GUI.
| EDID Mode | EDID Description |
|---|---|
| 1 | 1080p, Stereo Audio 2.0 |
| 2 | 1080p, Dolby/DTS 5.1 |
| 3 | 1080p, HD Audio 7.1 |
| 4 | 1080i, Stereo Audio 2.0 |
| 5 | 1080i, Dolby/DTS 5.1 |
| 6 | 1080i, HD Audio 7.1 |
| 7 | 3D, Stereo Audio 2.0 |
| 8 | 3D, Dolby/DTS 5.1 |
| 9 | 3D, HD Audio 7.1 |
| 10 | 4K2K30_444, Stereo Audio 2.0 |
| 11 | 4K2K30_444, Dolby/DTS 5.1 |
| 12 | 4K2K30_444, HD Audio 7.1 |
| 13 | 4K2K60_420, Stereo Audio 2.0 |
| 14 | 4K2K60_420, Dolby/DTS 5.1 |
| 15 | 4K2K60_420, HD Audio 7.1 |
| 16 | 4K2K60_444, Stereo Audio 2.0 |
| 17 | 4K2K60_444, Dolby/DTS 5.1 |
| 18 | 4K2K60_444, HD Audio 7.1 |
| 19 | 4K2K60, Stereo Audio 2.0 HDR |
| 20 | 4K2K60, Dolby/DTS 5.1 HDR |
| 21 | 4K2K60, HD Audio 7.1 HDR |
| 22 | User Define 1 |
| 23 | User Define 2 |
| 24–31 | Copy from HDMI OUTPUT 1–8 |
| 32–39 | Copy from HDBT OUTPUT 1–8 |
RS-232 Control
The product supports RS-232 command control. Connect the Matrix RS-232 port (D-Sub 9) at the rear to a PC using a serial cable with RS-232 male head and DB9-to-USB adapter. Serial port protocol: Baud rate 115200, Data bits: 8bit, Stop bits: 1, Check bit: 0.
Application Example
