JTECH-EX8K30-35M (JTD-3280) - 8K 30Hz HDMI over HDBaseT Extender with PoC | Setup Guide

Product Link:

https://www.jtechdigital.com/products/jtech-ex8k30-35m-jtd-3280-8k-30hz-hdmi-over-hdbaset-extender-with-poc?_pos=1&_sid=5c76f9f66&_ss=r

Model: JTECH-EX8K30-35M

JTD-ID: JTD-3280

Category: HDMI Extender

Looking to extend your HDMI signal across longer distances without sacrificing quality? This 8K 30Hz HDMI over HDBaseT Extender with PoC is designed to deliver ultra-high-definition video, clean audio, and control signals over a single Ethernet cable.

In this guide, we’ll walk you through everything you need to set up your extender quickly and correctly.

 

What This HDMI Extender Does

This extender allows you to transmit HDMI signals over a single Cat cable instead of long HDMI runs. It supports:

• Up to 8K@30Hz (4:4:4) and 4K@120Hz
• Transmission up to 131ft (Cat6a/7) or 230ft at 1080p
• Bi-directional PoC (Power over Cable) - only one power adapter needed
• IR & RS232 control pass-through for remote device control
• Audio extraction output for external speakers

 

What’s in the Box

Your extender kit includes:

• 1x Transmitter (TX)
• 1x Receiver (RX)
• 1x Power Adapter (12V)
• IR Receiver + IR Emitter cables
• Phoenix connectors (for RS232/audio)
• Mounting brackets & screws

 

What You’ll Need

Before starting, make sure you have:

• HDMI source (PC, streaming device, Blu-ray, etc.)
• Display (TV, projector, monitor)
• Cat5e/6/6a/7 cable (recommended: Cat6a or higher)
• HDMI cables

 

Step-by-Step Setup Guide

 

Step 1: Connect Your HDMI Source

• Plug an HDMI cable from your source device into the HDMI IN on the transmitter.

Step 2: Connect the Cat Cable

• Run a Cat cable from:
  • HDBT OUT (Transmitter) → HDBT IN (Receiver)
• This cable carries video, audio, power, and control signals.

Step 3: Connect Your Display

• Use an HDMI cable to connect:
  • Receiver HDMI OUT → TV/Display

Step 4: Power the System (PoC)

• Plug the power adapter into either:
  • Transmitter or
  • Receiver

✔ Thanks to PoC, both units will power on automatically

Step 5: (Optional) Connect IR or RS232

If you want remote control functionality:

• Connect IR emitter to transmitter (near source)
• Connect IR receiver to receiver (near display)

For advanced control:

• Use RS232 ports for automation systems

Step 6: Configure DIP Switch (Optional)

The transmitter includes DIP switches for:

• EDID settings (resolution compatibility)
• HDCP on/off
• RS232 mode

Default settings typically work out of the box, but adjustments can help with compatibility issues

 

Setup Diagram (How It Works)

The setup follows a simple flow:

Source → Transmitter → Cat Cable → Receiver → Display

You can also route:

• IR signals for remote control
• Audio to an external amplifier

 

Best Performance Tips

• Use Cat6a or Cat7 for maximum 8K distance and stability
• Keep HDMI cables short (especially for 8K)
• Avoid patch panels or couplers if possible
• Use T568B wiring standard for best results

 

Troubleshooting Quick Fixes

No Signal or Flickering?

• Check all cable connections
• Confirm cable length is within supported range
• Verify resolution is supported

No Power?

• Ensure power adapter is connected properly
• Remember: only one power supply is needed

IR Not Working?

• Make sure you're using IR (not Bluetooth remotes)
• Confirm correct IR IN / OUT placement

 

This 8K HDMI over HDBaseT extender (JTD-3280) is a powerful solution for clean, long-distance AV setups, especially when running traditional HDMI cables isn’t practical. With PoC, high bandwidth support, and flexible control options, it’s ideal for both simple and advanced installations.