The Crestron DM-TX-401-C is a digital media transmitter designed for the Crestron DigitalMedia distribution system, specifically engineered to transmit high-definition audio, video, and control signals over a single Cat5e/6/7 cable. This compact transmitter serves as the source endpoint in a DM installation, accepting HDMI signals from input devices such as computers, media players, or video conferencing systems and converting them into a format suitable for long-distance transmission across a structured wiring infrastructure. It supports video resolutions up to 4K at 60 Hz with 4:4:4 color sampling, ensuring high-fidelity signal integrity for demanding professional applications in corporate, education, government, and residential environments. The device also embeds bidirectional control signals (RS-232 and IR) and Ethernet data within the same cable run, simplifying system design and reducing cable clutter.

A key feature of the DM-TX-401-C is its integration with the broader Crestron ecosystem. It is powered via Power over Ethernet (PoE) from a compatible DigitalMedia switcher or a separate PoE injector, eliminating the need for a local power outlet at the source location. The transmitter includes an integrated scaler and video processor, allowing it to optimize the incoming signal to match the capabilities of the destination display or the bandwidth constraints of the cable run. This processing can include resolution scaling, color space conversion, and audio de-embedding. The unit is typically controlled and configured through the Crestron DigitalMedia system manager software, which allows for centralized management of all connected transmitters and receivers.

Housed in a discreet, low-profile enclosure, the transmitter is designed for easy mounting behind a display, under a table, or within a furniture podium. Its compact form factor and PoE capability make it ideal for clean, professional installations where hiding equipment is a priority. By providing a reliable, high-performance method for extending AV signals over standard network cable, the Crestron DM-TX-401-C Digital Media Transmitter forms a critical link in creating scalable, future-proofed AV distribution networks that support the latest video formats and centralized control.