Product Link:
Model: JTECH-EX-4KAEIR
JTD-ID: JTD-3139
Category: HDMI Extender
The J-Tech Digital JTD-3139 (JTECH-EX-4KAEIR) is a 4K HDMI extender designed to transmit high-quality audio and video signals over a single Cat5e/6 Ethernet cable. With support for resolutions up to 4K@60Hz (4:4:4) at distances up to 230ft (70m), integrated audio extraction, Power over Cable (PoC), and bi-directional IR control, it provides a reliable solution for extending HDMI signals in residential, commercial, educational, and digital signage applications.
This guide will walk you through the installation and setup process to ensure optimal performance.
Product Features
-
Extends HDMI signals up to:
- 230ft (70m) at 4K@60Hz 4:4:4
- 295ft (90m) at 1080p
- Supports HDMI 2.0 and HDCP 2.2
- Built-in HDMI loop-out on transmitter
- Analog stereo and optical (SPDIF) audio extraction
- Bi-directional IR pass-through for remote device control
- Power over Cable (PoC) technology
- Supports HDR10
- Dolby TrueHD, DTS-HD Master Audio, LPCM 7.1 support
- EDID management and EDID copy functionality
- Firmware upgradeable via Micro USB
Package Contents
Before installation, verify that the following items are included:
- 1 × HDMI Transmitter
- 1 × HDMI Receiver
- 2 × IR TX Emitters
- 2 × IR RX Receivers
- 1 × 12V Power Adapter
- 4 × Mounting Ears
- 1 × User Manual
System Requirements
To complete the installation, you will need:
- HDMI source device (Cable Box, PC, Streaming Device, Blu-ray Player, etc.)
- HDMI display (TV, Projector, Monitor)
- Cat5e or Cat6 Ethernet cable
- HDMI cables
- Optional external audio system
- Optional IR remote control
Understanding the Connections
Transmitter Ports
- HDMI Input
- HDMI Loop Output
- Cat5e/6 Output
- IR In
- IR Out
- EDID DIP Switches
- DC 12V Input
Receiver Ports
- HDMI Output
- Analog Stereo Audio Output (3.5mm)
- Optical Audio Output (SPDIF)
- Cat5e/6 Input
- IR In
- IR Out
- DC 12V Input
Step-by-Step Installation
Step 1: Connect the Source Device
Connect your HDMI source device to the HDMI Input port on the transmitter using a high-speed HDMI cable.
Examples:
- Streaming media player
- Cable or satellite box
- Gaming console
- Blu-ray player
- PC or laptop
Step 2: Connect the Local Display (Optional)
If you want a local monitor near the source, connect it to the transmitter's HDMI Loop Output.
This output mirrors the source signal and is useful for local monitoring.
Step 3: Connect the Ethernet Cable
Run a single Cat5e or Cat6 cable between the transmitter and receiver.
For best performance:
- Use solid-core Cat6 cable whenever possible.
- Avoid couplers and patch panels.
- Keep cable runs away from electrical interference.
Maximum transmission distances:
| Resolution | Distance |
|---|
| 4K@60Hz 4:4:4 | 230ft (70m) |
| 1080p | 295ft (90m) |
Step 4: Connect the Display
Connect the receiver's HDMI Output to your TV, projector, or monitor.
Power on the display.
Step 5: Connect Audio (Optional)
The receiver supports audio extraction for connection to external sound systems.
Analog Audio
Connect powered speakers, amplifiers, or audio systems to the 3.5mm Stereo Output.
Optical Audio
Connect an AV receiver, soundbar, or audio processor to the SPDIF Optical Output.
Supported formats include:
- PCM
- Dolby Digital
- Dolby TrueHD
- DTS-HD Master Audio
Step 6: Configure IR Pass-Through (Optional)
The included IR extension system allows remote control of source devices from the receiver location.
Control the Source Device from the Display Location
- Connect the IR Receiver (IR RX) to the receiver's IR In port.
- Connect the IR Emitter (IR TX) to the transmitter's IR Out port.
- Position the emitter directly over the source device's IR sensor.
Your remote commands will now travel through the Cat cable back to the source device.
Step 7: Apply Power
Connect the included power adapter to the transmitter.
Because the extender supports PoC (Power over Cable), only one side requires external power under normal operation.
Allow several seconds for the transmitter and receiver to establish a connection.
EDID Settings Explained
The JTD-3139 includes EDID management to help resolve compatibility issues between source devices and displays.
Default EDID
The factory default setting supports:
- 4K@60Hz
- 4:4:4 chroma
- 5.1-channel audio
EDID Copy Functions
The unit can also copy EDID information from:
- The remote display
- The local display
This can be useful when troubleshooting display compatibility issues or achieving specific audio formats.
Troubleshooting
No Video
- Verify all HDMI connections.
- Confirm Cat5e/6 cable is securely connected.
- Check that the display is powered on.
- Try a shorter Ethernet cable for testing.
- Verify the selected EDID setting.
No Audio
- Confirm audio system is connected to the correct output.
- Verify source audio format compatibility.
- Test with PCM audio output from the source device.
- Check optical and analog cables.
IR Control Not Working
- Verify IR TX and IR RX are connected to the correct ports.
- Ensure the emitter is positioned directly over the source device's IR sensor.
- Test with the original manufacturer remote.
Intermittent Signal
- Inspect Ethernet cable quality and termination.
- Avoid patch panels and couplers.
- Use Cat6 cable for best 4K performance.
Applications
The JTD-3139 is ideal for:
- Conference rooms
- Digital signage
- Sports bars
- Classrooms
- Home theater installations
- Houses of worship
- Security monitoring systems
- Retail displays
The J-Tech Digital JTD-3139 4K HDMI Extender Balun provides a cost-effective way to extend 4K HDMI signals over standard Ethernet cabling while adding valuable features such as audio extraction, PoC power delivery, and IR control. By following the steps outlined above, you can quickly deploy a reliable HDMI extension solution for both residential and commercial AV environments.
For additional support, firmware updates, or product information, contact the J-Tech Digital support team.
Call our team at (888) 610-2818 or email us at sales@jtechdigital.com or support@jtechdigital.com for more information.
