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SIIG 04-1375A 1x4 HDMI Splitter Over Cat6 Extender User Guide
Quick setup and configuration guide for the SIIG 04-1375A 1x4 HDMI Splitter. Includes port layouts, EDID settings, RS-232 control, and installation requirements for 4K@60Hz signal extension.
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The SIIG 04-1375A is a 1x4 HDMI Splitter Over Cat6 Extender designed to distribute 4K@60Hz HDMI signals up to 230ft (70m) over Cat6/7 cabling. It supports HDR, HDCP 2.2, and includes features like EDID management, audio extraction, and RS-232 control. Ensure all power adapters are connected and use high-quality Cat6/7 cables for optimal performance.
Package Contents
- 1x Transmitter (TX)
- 4x Receivers (RX)
- 1x Power adapter DC 12V/2A (for TX)
- 4x Power adapter DC 5V/2A (for RX)
- 1x IR blaster cable
- 4x IR Receiver cables
- Terminal block
- Mount kits
Transmitter (TX) Layout
The transmitter serves as the central hub for the HDMI source and distribution.
- Reset Button: Restarts the device.
- IR In/Out: Connects IR receiver and blaster extension cables.
- RJ-45 Ports (1-4): Connect to the receivers using Cat6 cables.
- HDMI Loop-out: Connects to a local HDMI display.
- HDMI Input: Connects to the HDMI source device.
- EDID Switch: Configures EDID settings (refer to the EDID table).
- RS-232: Port for serial command control.
- Power Jack: Connects the 12V/2A power adapter.
Receiver (RX) Layout
Each receiver connects to a display and provides audio/control options.
- Reset Button: Restarts the device.
- Audio Switch: Selects audio extraction from HDMI input or ARC from the TV.
- RJ-45 Input: Connects to the transmitter via Cat6 cable.
- Power/Signal LED: Flashes when no HDMI signal is detected; stays on when a signal is transmitted.
- Power Jack: Connects the 5V/2A power adapter.
- Toslink Output: For audio extraction or ARC use.
- HDMI Output: Connects to the HDMI display.
- IR In/Out: Connects IR receiver and blaster extension cables.
EDID Settings
The EDID switch allows you to force specific resolution and audio formats. Switches are set to '1' (up) or '0' (down). Refer to the EDID settings table in the manual to match your display's capabilities (e.g., 4K@60Hz 2CH, 4K@60Hz HDR 7.1CH, etc.). The 'Auto' setting (all switches up) is recommended for compatibility with all displays.
RS-232 Settings
The device supports serial control with the following parameters: Baud rate 9600, Data bits 8, Stop bits 1, Parity 0. Supported commands include:
- ES XX On/n: Turn on output port (XX = 01, 02, or All).
- ES XX Off/n: Turn off output port (XX = 01, 02, or All).
- Reset/n: Restart the device.
- Recover/n: Restore factory settings.
- Baud xx /n: Set baud rate.
Support
For more information or technical support, visit http://www.siig.com/support
Official resources from the manual
Manufacturer information
SIIG, Inc.
Practical help
Common problems
No HDMI signal on display
Check if the Power/Signal LED on the receiver is flashing. If flashing, the signal is lost; verify the Cat6 cable connection and HDMI source.
Remote control not working
Ensure the IR blaster is positioned close to the source device and the IR receiver is within the effective range of the remote.
Audio not playing via Toslink
Use the Audio switch on the receiver to toggle between extracting audio from the HDMI input or using ARC from the TV.
Before use
- Verify you have Cat6/7 cables for the connection between the transmitter and receivers.
- Ensure the 12V/2A power adapter is connected to the Transmitter.
- Ensure the 5V/2A power adapters are connected to each Receiver.
- Connect the HDMI source to the Transmitter HDMI Input.
- Connect the displays to the HDMI Output on the Receivers.
- Set the EDID switches on the Transmitter according to your display's resolution requirements.
Specs in practice
- 4K@60Hz YUV 4:4:4
- Supports high-resolution video with full color fidelity.
Images and diagrams
- Transmitter ports include 4x RJ-45 outputs for receivers, HDMI loop-out, and HDMI input.
- Receiver ports include RJ-45 input, HDMI output, and Toslink audio output.
Model compatibility
- Extends signals up to 230ft (70m) over Cat6/7 cable.
- Supports HDCP 2.2.
- Supports PCM2, Dolby, and DTS 5.1 audio formats.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.