KanexPro NetworkAV H.264 HDMI Transmitter over IP w/ POE & RS-232

The KanexPro EXT-AVIPH264TX delivers a robust, scalable solution for AV distribution over IP. This HDMI transmitter encodes video from an HDMI source with advanced H.264 compression, enabling Full HD 1080p transmission over standard LAN networks with lower bandwidth requirements. Designed for modern conference rooms, classrooms, and digital signage deployments, it combines PoE power delivery with RS-232 control to simplify installation and integration into existing control ecosystems. Whether you’re building a new networked AV setup or upgrading an on-premises distribution, this transmitter offers reliable performance, easy management, and flexible deployment options that align with professional AV and IT workflows.

• Efficient H.264 compression drives high-quality 1080p video from HDMI sources while minimizing bandwidth usage. This enables smooth, real-time AV transmission over typical LAN infrastructures, helping you maximize network capacity for other critical applications. The encoder preserves detail, color, and motion accuracy, so presentations, tutorials, and multimedia content look crisp and engaging on distant displays or multi-room installations. With low-latency capabilities, you can rely on synchronized visuals for presentations, video walls, and interactive experiences without noticeable delay.
• HDMI input paired with Ethernet-based transport creates a flexible AV over IP solution. The transmitter accepts a single HDMI source and packages the video (and embedded audio if present) for delivery across the network. It is designed for easy integration into existing Ethernet networks and can be managed alongside other networked AV devices. This setup enables centralized distribution to multiple receivers or displays across a campus, office, or retail environment, simplifying cabling and centralizing control from a single interface.
• Power over Ethernet (PoE) support reduces wiring complexity by powering the unit through the same Ethernet cable used for data transmission. This simplifies installation in hard-to-reach locations, ceiling mounts, or mounting enclosures where a separate power outlet is inconvenient. PoE integration minimizes clutter, lowers installation costs, and enables cleaner, more scalable deployments in conference rooms, classrooms, or digital signage networks, especially where outlets are scarce or difficult to access.
• RS-232 control enables seamless integration with room control systems, automation platforms, and third-party processors. You can send commands to configure the transmitter, query status, or adjust operational parameters without relying solely on network management software. This makes it easier to orchestrate AV playback, switch inputs, or coordinate with other devices in a unified control scheme, ensuring a smooth and professional user experience during meetings and events.
• Ideal for professional environments seeking scalable, dependable AV distribution over IP. The KanexPro transmitter is designed to fit into corporate, educational, and digital signage ecosystems, offering easy deployment with familiar IT practices while maintaining the reliability and performance expected from dedicated AV hardware. Its compact form factor supports flexible mounting options, and its compatibility with standard networking equipment helps IT teams integrate AV streams into existing infrastructure with confidence.

Technical Details of KanexPro NetworkAV H.264 HDMI Transmitter over IP w/ POE & RS-232

• Video input: HDMI interface capable of transmitting HDMI sources to the network with H.264 encoding.
• Video compression: H.264 encoding for efficient AV over IP distribution and reduced bandwidth consumption.
• Network interface: Ethernet out for IP-based transport of AV streams across LANs.
• Power: PoE capable to power the unit via Ethernet cable, simplifying installation and reducing cabling.
• Control: RS-232 support for integration with room controllers, automation systems, and external processors.

How to Install KanexPro NetworkAV H.264 HDMI Transmitter over IP w/ POE & RS-232

• Connect your HDMI source to the transmitter’s HDMI input using a standard HDMI cable. Ensure the source is set to output at a supported resolution, typically up to 1080p60, and verify audio settings if you plan to transmit embedded audio.
• Connect the transmitter to your network using an Ethernet cable. If PoE is available on your switch or injector, you can power the unit through the same cable; otherwise provide power through an auxiliary power supply if required by your setup.
• Configure network settings. Set the transmitter for static or dynamic IP as per your IT policies, and ensure it is discoverable by your AV management system or control software. If necessary, assign a unique device name or address for easy identification in your network.
• Connect receivers or displays to the appropriate endpoints in your AV distribution system. Verify that the network paths are correctly configured, and that endpoints can access the AV stream from the transmitter. In larger installations, consider multicast or unicast streaming configurations based on your network design.
• Power on the system, test the HDMI source, and verify video and audio integrity at the display. If you use RS-232 control, send basic commands to confirm responsive input selection, status reporting, and remote management capabilities. Fine-tune latency and bandwidth settings if your network experiences congestion or if multiple streams share limited bandwidth.

Frequently asked questions

• Q: What video resolutions does the KanexPro NetworkAV transmitter support?
  A: The transmitter is designed to deliver Full HD 1080p video from HDMI sources. It encodes the signal with H.264 for efficient streaming over IP networks, typically handling 1080p60 content while preserving color, detail, and smooth motion. For compatibility with your displays, verify that your HDMI source and display support the same resolution and frame rate.
• Q: How does PoE benefit installation?
  A: PoE lets you power the transmitter through the same Ethernet cable used for data transport. This reduces cable clutter, eliminates the need for separate AC outlets near the installation point, and simplifies mounting in ceilings, walls, or compact enclosures. It is especially advantageous in rooms with limited power outlets or challenging cabling layouts.
• Q: Can I control the transmitter with RS-232?
  A: Yes. The device includes an RS-232 interface for integration with room control systems and automation platforms. This enables remote configuration, status monitoring, input control, and other management tasks as part of a unified AV control strategy.
• Q: Is this transmitter suitable for multi-room or campus installations?
  A: It is designed for AV over IP, making it well-suited for scalable deployments across multiple displays or rooms. By distributing streams over a LAN, you can extend coverage to additional receivers and displays across buildings or campuses, assuming your network design supports the required bandwidth and QoS settings.
• Q: What should I consider when integrating with existing network infrastructure?
  A: Ensure your network can handle the bandwidth requirements of live HDMI streams encoded in H.264. Consider QoS or traffic prioritization for AV streams, proper switch configuration for PoE power if used, and a stable IP addressing scheme to simplify device management and monitoring. It’s also helpful to plan for firmware updates and controller compatibility to maintain long-term reliability.