General
Video interface	HDMI
USB ports	2 HID (keyboard/mouse)
Connection type	CATx
Maximum range	140 m
Maximum resolution	1080p
Warranty	2 years Double Diamond™
Compatibility	Modular DKM extender enclosures
Used in	Point-to-point KVM extenders, KVM matrix switching systems DKM FX and DKM FXC

The BlackBox ACX1MT-HDM2-C is a modular base module for the DKM Extender series, specifically designed for extending KVM signals (Keyboard, Video, Mouse) over CATx connections. It serves as a transmitter card in the modular DKM system and enables connection of a computer to a remote console via network cables. The module features an HDMI video input and two USB HID ports for keyboard and mouse, making it suitable for standard PC and workstation applications. The connection is made via CATx cables, with a maximum range of up to 140 meters. Digital signal transmission ensures pixel-accurate resolution up to 1080p, maintaining image quality even over long distances. Transmission occurs without compression, preserving color gradients and image details.

Applications
This module is intended for point-to-point KVM extensions and for use in KVM matrix switching systems of the DKM FX and DKM FXC series. It is particularly suitable for environments where multiple workstations need to be connected via central control, such as in data centers, control rooms, or industrial facilities. The modular design allows flexible adaptation to different requirements, for example by combining with additional modules for extra interfaces or expansions.

Functions and Features in Detail
The module provides an HDMI video port for digital signal transmission from graphics cards. The two USB HID ports are designed for keyboard and mouse control, enabling full interaction with the remote computer. The CATx connection is established using standard network cables (e.g., Cat5e, Cat6), making installation simple and cost-efficient within existing network infrastructures. The maximum range of 140 meters is sufficient for many office and industrial applications.

Technology Explained Simply
Signal transmission is digital, ensuring no quality loss. Resolution is transmitted pixel-accurately, meaning the image on the remote monitor appears exactly as if the computer were directly connected. Support for 1080p enables clear display for office and standard PC applications. The bandwidth of the CATx connection is sufficient to meet video and USB signal requirements without latency or image disturbances. The use of advanced video compression algorithms supports 24-bit color depth, ensuring smooth color gradients and high image quality.

Compatibility and Accessories
The module is exclusively intended for use in modular DKM Extender enclosures. These are available in desktop versions with two, four, or six slots, as well as in a 48,3 cm ( 19 inch ) rack version with 21 slots. Configuration is achieved by combining transmitter cards at the computer with receiver cards at the console. The modules can also be used in KVM matrix systems of the DKM FX and DKM FXC series. No additional adapters or special network components are required for operation—the connection is made via standard CATx cables.

Installation and Mounting
Installation involves inserting the module into a compatible DKM Extender enclosure. Cabling is done via CATx cables between the transmitter at the computer and the receiver at the console. The enclosures can be used as desktop devices or mounted in 48,3 cm ( 19 inch ) racks, with optional mounting kits available for wall or under-desk mounting for desktop versions. Power supply is provided by the respective enclosure, with options for internal or external power supplies and AC or DC power (12V, 24V, 48V).

Operational Advantages
The modular design enables flexible adaptation to different requirements. Digital signal transmission ensures high image quality without quality loss. The use of standardized CATx cables reduces installation costs and simplifies integration into existing networks. The maximum range of 140 meters is sufficient for many applications, and support for 1080p provides clear display for office and standard PC applications. The 2-year Double Diamond™ warranty offers additional security for operation.