General
Video output	HDMI up to 1080p
USB ports	2x for keyboard/mouse optional 4x USB 2.0 Highspeed
Connection options	CATx up to 140 m
Bandwidth	1 Gbps Standard
Housing options	2-, 4-, 6-, 21-slot desktop or 19" rack mounting
Current supply	AC or DC 12V, 24V, 48V

The product is a modular DKM Extender base module from the manufacturer BlackBox, type ACX1MT-HDM2-SM, specifically designed for flexible expansion of KVM systems. It serves as a transmitter card with HDMI video output and USB-HID interface, supplemented by a local HDMI pass-through, and is designed for use in modular enclosures. The modules enable application-specific configuration of KVM systems, particularly for bridging long distances or utilizing specific video and peripheral signals. Integration into DKM matrix switching systems offers scalability and flexibility for various enterprise environments.

Applications

The module is suitable for point-to-point connections as well as for use in matrix switching systems. It is used in environments where flexible adaptation of interfaces is required, for example in data centers, control rooms, or for controlling multiple workstations over long distances. Support for high-performance applications such as graphic displays or multiple video channels makes it suitable for demanding IT infrastructures.

Functions and Equipment in Detail

The base module features an HDMI video output supporting resolutions up to 1080p. Two USB ports are provided for connecting keyboard and mouse. Optionally, the module can be extended with four Highspeed USB 2.0 ports (480 Mbps) to connect additional peripheral devices. The local HDMI pass-through enables direct display of the video signal at the module location, which can be helpful during installation or maintenance.

Technology Explained Simply

Video transmission occurs pixel-accurately with lossless compression and a color depth of 24 bits, ensuring high image quality. The bandwidth is standard 1 Gbps, with a high-performance variant available at 2.5 Gbps for graphics-intensive applications. The connection is made via CATx cables (up to 140 m), multimode fiber (up to 1000 m), or singlemode fiber (up to 10 km), allowing flexible selection of transmission media. Power supply can be via AC or DC, supporting voltages of 12 V, 24 V, or 48 V.

Compatibility and Accessories

The module is designed for use in modular enclosures with 2-, 4-, 6-, or 21-slot options and can be installed either as a desktop device or in 48,3 cm ( 19 inch ) rack mounting. It is part of a modular KVM system that can be adapted to specific requirements by combining different base modules with various video and USB interfaces. Use with other DKM modules enables a scalable system architecture.

Mounting and Installation

Mounting is done in a modular enclosure, available in various slot configurations depending on requirements. Installation involves inserting the module into the enclosure and then connecting the interfaces. The delivery includes an installation manual describing the setup and configuration of the module. The local HDMI pass-through facilitates visual verification of signal transmission during installation.

Advantages in Operation

The modular design enables flexible adaptation of the KVM system to changing requirements. Support for various transmission media and bandwidths ensures high flexibility in system planning. Pixel-accurate video transmission and lossless compression guarantee high image quality, even over long transmission distances. Integration into matrix switching systems offers scalability and enables control of multiple workstations from a central point.

Delivery Contents

The delivery includes 1x base module (with selected video format and USB connections), 1x power supply (optional depending on model), 1x installation manual, and 1x warranty card. The warranty is 2 years under the Double Diamond™ program.