Description
ST-NSP918C70 HDMI Splitter is a professional 1×8 HDMI Splitter over CAT6 designed to distribute one HDMI input signal to eight display devices simultaneously. The ST-NSP918C70 HDMI Splitter supports video resolutions up to 4K2K@30Hz, extends HDMI signals up to 70 meters over a single CAT6 cable, and features advanced EDID management, one-way PoC, and IR pass-through for reliable AV signal transmission.
Features
☆ HDCP 1.4 compliant
☆ Video resolution up to 4K2K@30Hz (4:4:4) 8-bit, as specified in HDMI 1.4
☆ Supports audio formats: LPCM 7.1CH, Dolby True HD, and DTS-HD Master Audio
☆ Extends signal transmission distance up to 131ft/40m at 4K30Hz or 230ft/70m at 1080p@60Hz via a single CAT6 cable
☆ Supports 1 HDMI input, 1 HDMI loop output and 8 CAT outputs
☆ Advanced EDID management
☆ Supports 12V one-way PoC function (Transmitter to Receiver only)
☆ One-way IR control signal pass-through
☆ Compact design for easy and flexible installation
The ST-NSP918C70 HDMI Splitter is ideal for conference rooms, digital signage, classrooms, control rooms, and commercial AV installations. With support for long-distance HDMI extension over CAT6, EDID management, PoC technology, and IR pass-through, the ST-NSP918C70 HDMI Splitter delivers stable audio and video transmission. The ST-NSP918C70 HDMI Splitter is designed for professional HDMI distribution across multiple displays.
Package Contents
① 1x HDMI 1×8 Splitter (Transmitter)
② 8x CAT Receiver
③ 1x IR Blaster Cable (1.5 meters)
④ 8x IR Receiver Cable (1.5 meters)
⑤ 2x Mounting Ear
⑥ 1x 12V/2.5A DC Locking Power Adapter
⑦ 4x Machine Screw (KM3*4)
⑧ 1x User Manual
Specifications
| Technical | |
| Video Bandwidth | 297MHz / 10.2Gbps |
| Video Resolution | 480i ~ 1080p50/60Hz, 4Kx2K@30Hz (4:4:4) |
| Audio Formats | LPCM 7.1CH, Dolby True HD and DTS-HD Master Audio |
| Transmission Distance | 1080p@60Hz: 230ft/70m; 4K30Hz: 131ft/40m via a single CAT6 cable |
| HDMI Compliance | HDMI 1.4 |
| HDCP Compliance | HDCP 1.4 |
| Color Space | RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0 |
| Color Depth | 8-bit, 10-bit, 12-bit (1080p@60Hz); 8-bit (4K30Hz) |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge) & ±4kV (Contact discharge) |
| Connection | |
| Transmitter | Input: 1x IN [HDMI Type A, 19-pin female] Output: 1x OUT [HDMI Type A, 19-pin female] 8x CAT OUT [RJ45] Control: 1x IR OUT [3.5mm Stereo Mini-jack] 1x EDID DIP Switch [4-pin] 1x UPDATE [Micro USB] |
| Receiver | Input: 1x IR IN [3.5mm Stereo Mini-jack] 1x CAT IN [RJ45, 8-pin female] Output: 1x OUT [HDMI Type A, 19-pin female] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | Transmitter: 295mm [W] × 82mm [D] × 18mm [H] Receiver: 79.5mm [W] × 69mm [D] × 16.5mm [H] |
| Weight | Transmitter: 628g; Receiver: 130g |
| Power Supply | 12V/2.5A DC Locking Power (US/EU standards, CE/FCC/RoHS certified) |
| Power Consumption (Max) | 19.2W |
| 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) |
Operation Controls and Functions
Transmitter Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | POWER LED | When the Transmitter is powered on, the red Power LED will be on. |
| 2 | CAT OUT (1~8) | Connect to the CAT port of the Receiver with a CAT6 cable. |
| 3 | Power LED (Green) | Transmitter supports one-way PoC function. When it supplies power to the Receiver through a CAT cable, this Power LED will be on. |
| 4 | Data Signal Indicator (Yellow) | Illuminating: HDMI signal with HDCP. Flashing: HDMI signal without HDCP. Dark: No HDMI signal. |
| 5 | IN | HDMI input port. Connect to an HDMI source device such as a DVD or set-top box with an HDMI cable. |
| 6 | OUT | HDMI loop output port. Connect to an HDMI display device such as a TV or monitor with an HDMI cable. |
| 7 | IR OUT | IR signal output port. Connect to the IR Blaster cable. The IR signal is sourced from the IR IN port of the Receiver. |
| 8 | EDID DIP Switch | Used to set EDID mode. Please refer to the EDID Mode table below for details. |
| 9 | UPDATE | Mini USB firmware update port. Connect to a PC for firmware updating. |
| 10 | DC 12V | DC 12V power input port. |
| 11 | POWER Switch | Press the switch to power on/off the device ("-" for on, "o" for off). |
Receiver Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | OUT | HDMI signal output port. Connect to an HDMI display device such as a UHDTV. |
| 2 | IR IN | Connect to the IR Receiver cable. The IR signal will be emitted to the IR OUT port of the Transmitter. |
| 3 | CAT | CAT input port. Connect to the CAT OUT port of the Transmitter with a CAT6 cable. |
| 4 | Power LED (Green) | When the Receiver is powered on, the LED will be on. The device supports PoC function; the Receiver is powered by the Transmitter through a CAT cable. |
| 5 | Data Signal Indicator (Yellow) | Illuminating: HDMI signal with HDCP. Flashing: HDMI signal without HDCP. Dark: No HDMI signal. |
IR Pin Definition
| Cable Type | Pin | Signal |
|---|---|---|
| IR Blaster | 1 | IR Blaster Signal |
| 2 | Power | |
| 3 | NC | |
| IR Receiver | 1 | IR Signal |
| 2 | Power | |
| 3 | Grounding |
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.
EDID Mode
| EDID Mode (DIP) | EDID Description |
|---|---|
| 0000 | 1080p, 2CH Audio |
| 0001 | 1080p, Dolby/DTS 5.1 |
| 0010 | 1080p, HD Audio |
| 0011 | 1080i, 2CH Audio |
| 0100 | 1080i, HD Audio |
| 0101 | 1080i, Dolby/DTS 5.1 |
| 0110 | 3D, 1080p, 2CH Audio |
| 0111 | 3D, 1080p, Dolby/DTS 5.1 |
| 1000 | 3D, 1080p, HD Audio |
| 1001 | 4K30, 2CH Audio |
| 1010 | 4K30, Dolby/DTS 5.1 |
| 1011 | 4K30, HD Audio |
| 1100 | Copy Loop Out |
| 1101 | 720p, 2CH Audio |
| 1110 | 720p, Dolby/DTS 5.1 |
| 1111 | 720p, HD Audio |
Application Example