Atlona AT-HDR-EX-100CEA-TX 4K HDR Transmitter with Ethernet, Control, PoE & Return Audio (330')

Product Overview

The Atlona AT-HDR-EX-100CEA-TX is a HDBaseT transmitter engineered for commercial AV installations requiring 4K HDR signal extension up to 330 feet (100 meters) over a single Category 6/6A cable. Supporting 4K/UHD @ 60 Hz with 4:4:4 chroma sampling and HDR formats including HDR10, HLG, and Dolby Vision, this 4K HDBaseT transmitter with scaler carries video, multi-channel audio, Ethernet, bidirectional RS-232 and IR control signals, and remote power to compatible receivers in a single cable run. With visually lossless compression and no latency, it is purpose-built for long-distance 4K HDR distribution in conference rooms, lecture halls, and corporate AV over HDBaseT applications.

Product Description

The Atlona AT-HDR-EX-100CEA-TX is an HDBaseT transmitter that accepts a single HDMI input and delivers 4K/UHD video at up to 60 Hz with 4:4:4 chroma sampling, HDR metadata, multi-channel audio, Ethernet, RS-232, IR control, and power to a compatible receiver over Category 6/6A cable at distances of up to 330 feet (100 meters). It is designed primarily for use with the AT-HDR-EX-100CEA-RX receiver in point-to-point 4K HDR extension applications.

Visually lossless compression with no added latency enables the unit to transport HDR and full 4K/60 4:4:4 signals over HDBaseT — a transmission standard that traditionally requires signal compromise at these resolutions. This makes the AT-HDR-EX-100CEA-TX directly applicable in installations where image quality cannot be traded off for distance, such as medical visualization, broadcast monitoring, or high-end corporate presentation environments.

All three major HDR formats are supported: HDR10, Hybrid Log-Gamma (HLG), and Dolby Vision at 60 Hz (the latter requiring Low Latency Dolby Vision mode on the receiving display). HDCP 2.2 compliance ensures protected content is transmitted correctly between authenticated devices. The transmitter also powers compatible receivers over HDBaseT, eliminating the need for a separate power supply at the remote end and simplifying cable management at the display location.

Bidirectional RS-232 (up to 115200 baud) and IR (30–60 kHz) control signals are extended over the same HDBaseT cable, enabling display and device control from the source end without additional control wiring. A TOSLINK optical output on the transmitter provides a return audio pathway from the display back to the source, supporting ARC-type workflows when used with a compatible receiver. A front-panel TEST button and HDBaseT link status LEDs allow integrators to verify cable quality, termination, and link performance in the field. The compact enclosure supports surface mounting in furniture or a lectern, and rear-panel connections simplify cable management.

Key Features

• 4K/UHD @ 60 Hz with 4:4:4 Chroma Sampling over HDBaseT — Visually lossless compression with no latency enables full 4K/60 4:4:4 transmission over Category 6/6A to distances of 330 feet (100 meters).
• HDR10, HLG, and Dolby Vision Support — Passes all three major HDR formats at up to 60 Hz, preserving the full dynamic range of HDR source content at the remote display.
• HDCP 2.2 Compliant — Supports the latest content protection specification for secure transmission of protected content between authenticated devices.
• AV, Ethernet, Control, and Power over a Single Cable — HDBaseT output carries 4K HDR video, multi-channel audio, Ethernet, RS-232, IR, and remote power to the receiver over one Cat 6/6A cable.
• Remote Power for Compatible Receivers — Powers the AT-HDR-EX-100CEA-RX and other compatible receivers over HDBaseT, eliminating a second power supply at the display location.
• Bidirectional RS-232 and IR Control Extension — RS-232 pass-through up to 115200 baud and IR pass-through at 30–60 kHz extend control signals to and from the display over the HDBaseT link.
• TOSLINK Return Audio Pathway — Optical audio output on the transmitter carries a return audio signal from the display back to the source location when used with a compatible receiver.
• HDBaseT Link Status Testing — Front-panel TEST button and status LEDs verify cable integrity, termination quality, and link performance, supporting faster and more reliable installations.
• Front-Panel USB Port for Firmware Updates — Mini-USB utility port enables field firmware updates without network access.
• Compact, Versatile Enclosure — Low-profile unit can be surface-mounted in furniture, a lectern, or an equipment rack; rear-panel connections simplify wire management.

Typical Applications

• Long-distance 4K HDR point-to-point extension from a source to a remote display in conference rooms, boardrooms, and lecture halls
• AV systems requiring full 4K/60 4:4:4 signal integrity over structured cabling without compromise
• Corporate and higher education installations using the AT-HDR-EX-100CEA-RX receiver for complete extension kits
• Systems integrating with AT-UHD-CLSO-824 or AT-UHD-SW-5000ED matrix switchers for remote source inputs at 4K/60 4:2:0
• Medical, broadcast, or visualization environments requiring HDR content delivery with no perceptible latency
• Lectern or furniture-mounted source equipment sending signals to ceiling-mounted or wall-mounted displays over structured Cat 6/6A cabling

Technical Specifications

Frequently Asked Questions

Q: What receiver is the AT-HDR-EX-100CEA-TX designed to work with?

The AT-HDR-EX-100CEA-TX is designed for use with the AT-HDR-EX-100CEA-RX receiver in point-to-point 4K HDR extension applications. It is not compatible with the AT-HDR-EX-70C-RX receiver.

Q: Does the AT-HDR-EX-100CEA-TX support full 4K/60 4:4:4 at 330 feet?

Yes. Using visually lossless compression with no added latency, the unit extends 4K/UHD @ 60 Hz with 4:4:4 chroma sampling up to 330 feet (100 meters) over Category 6/6A cable. Over Cat 5e, the maximum 4K distance is 295 feet (90 meters).

Q: Which HDR formats are supported?

The unit supports HDR10, Hybrid Log-Gamma (HLG), and Dolby Vision at up to 60 Hz. Dolby Vision @ 60 Hz requires that the receiving display supports Low Latency Dolby Vision (LLDV) mode. All other 4K modes are limited to 30 Hz for Dolby Vision.

Q: Does the transmitter power the receiver?

Yes. The AT-HDR-EX-100CEA-TX provides remote power over the HDBaseT link to the AT-HDR-EX-100CEA-RX and other compatible receivers, eliminating the need for a separate power supply at the display location.

Q: Can the AT-HDR-EX-100CEA-TX be used with Atlona matrix switchers?

Yes. The transmitter is compatible with the AT-UHD-CLSO-824 and AT-UHD-SW-5000ED switchers for transmitting 4K/UHD @ 60 Hz 4:2:0 signals from a remote source to the switcher's HDBaseT input.

Q: How are RS-232 and IR control signals handled?

Bidirectional RS-232 (up to 115200 baud) and IR (30–60 kHz) control signals are passed through over the HDBaseT link alongside the AV signal, enabling display control from the source end without additional wiring runs.

Q: What is the TOSLINK output used for?

The TOSLINK output on the transmitter provides a return audio pathway from the display back to the source location over HDBaseT when used with a compatible receiver such as the AT-HDR-EX-100CEA-RX, supporting ARC-style audio return workflows.

Q: How can cable and link quality be verified after installation?

The front-panel TEST button activates HDBaseT link status testing, with results displayed via the front-panel LEDs. An Analyzer software tool (version 1.0.04) is also available from Atlona for detailed HDBaseT cable testing and debugging.