Crestron DM-EXT-1021 KIT – 2x1 DM Essentials Scaling Auto-Switcher and CATx Extender

Product Overview

The Crestron DM-EXT-1021 KIT is a cost-effective multimedia presentation kit comprising a tabletop transmitter (HD-TXC-4KZ-101) and a display-end receiver (HD-RXC-4KZ-101), providing 2x1 auto-switching between two HDMI sources over a single CATx cable run to the display. It delivers 4K60 4:4:4 signal extension for classrooms, conference rooms, and meeting spaces where a simple two-source auto-switching presentation system is required without a full AV matrix switcher. The transmitter sits at the table, the receiver connects at the display — standard CATx cable handles the signal extension run between them.

Key Features

• 2x1 Auto-Switching: Two HDMI inputs at the transmitter automatically switch to the active source — no manual input selection required for basic BYOD and fixed-source environments.
• 4K60 4:4:4 Signal Extension: Full 4K60 4:4:4 video and audio over CATx cable — supports HDR and high-bandwidth AV signals at extended distances.
• CATx Cable Extension: Extends HDMI over standard CATx infrastructure — eliminates long HDMI cable runs in commercial spaces.
• Integrated Scaler: Auto-scales source signal to match the connected display resolution — simplifies deployment in rooms with varied display types.
• RS-232 and IR Pass-Through: Control signals pass through the cable run for display power and input control from the source end.
• Cost-Effective Kit: Transmitter and receiver packaged together — single SKU for a complete point-to-point presentation system.

Typical Applications

• Conference rooms and boardrooms requiring simple 2-source presentation switching
• Classrooms with instructor PC and guest HDMI source
• Training rooms with fixed and BYOD HDMI sources
• Commercial meeting spaces replacing long HDMI runs with CATx infrastructure

Technical Specifications

Frequently Asked Questions

What CATx cable category is required?
CAT5e or better (CAT6 recommended for maximum distance performance). Standard structured cabling in commercial buildings is typically sufficient.

Is a wall plate transmitter version available?
Yes — the DM-EXT-1021-1G-B KIT (Black) and DM-EXT-1021-1G-W KIT (White) use a single-gang wall plate transmitter instead of the tabletop unit.

Can this system be controlled from a Crestron touch panel?
The transmitter supports RS-232 and IR pass-through for display control. For full Crestron automation, a 4-Series control processor and appropriate programming are required.