General
Video format	HDMI
Resolution	up to 1080p
Connections	1x HDMI, 2x LC fibre optic, 1x USB HID
Connection type	Multimode optical fibre
Transmission range	up to 1000 m
Bandwidth	1 Gbps
Application area	Point-to-point extension, KVM matrix switching systems

The modular DKM Extender base module ACX1MT-HDMI-SM from BlackBox is a specialized adapter for extending HDMI video and USB signals over multimode fiber optic cable. It serves as a basic building block in KVM systems and enables the transmission of high-resolution video and USB HID control inputs (keyboard, mouse) over distances up to 1000 meters. The use of fiber optic cable ensures lossless and interference-free signal transmission, particularly in environments with high electromagnetic interference, such as industrial facilities or control rooms.

Applications
This module is designed for point-to-point connections and for use in KVM matrix switching systems (DKM FX/FXC). It is particularly suitable for applications requiring stable, high-quality video transmission over long distances, such as security surveillance systems, audiovisual production environments, or industrial control centers. Support for resolutions up to 1080p ensures clear and detailed display on the receiving device.

Functions and Features in Detail
The module features an HDMI input for the video signal, two LC fiber optic connectors for bidirectional data transmission, and a USB HID port enabling keyboard and mouse control over the fiber optic link. The combination of video and USB transmission over a single fiber optic cable reduces the number of required cables and simplifies installation. The bandwidth of 1 Gbps is sufficient to transmit the required signals without delay or quality loss.

Technology Explained Simply
The use of multimode fiber optic cable offers advantages over conventional copper cables for signal transmission over long distances. The fiber optic cable is resistant to electromagnetic interference, enabling reliable transmission even in sensitive environments. The LC connectors are standardized and provide a secure, mechanically stable connection. The maximum range of 1000 meters over multimode fiber optic cable makes the module suitable for applications in large halls, factories, or across multiple buildings.

Compatibility and Accessories
The module is intended for use in DKM FX/FXC KVM matrix systems and can be integrated as part of a modular setup. It is compatible with multimode fiber optic cables and does not require additional power supplies at the module itself. Optional accessories, such as.

Mounting and Installation
The module is designed for installation in a modular housing and is connected to the fiber optic cable and signal sources via the designated connectors. The installation manual, included in the delivery, describes the steps for correct mounting and commissioning. Cabling is done via LC connectors, ensuring a secure and durable connection.

Operational Advantages
The combination of high range, high image quality, and interference resistance makes the module a reliable solution for professional applications. The integrated USB HID control enables remote computer operation over long distances, which is advantageous in control rooms or when monitoring distributed systems. The use of fiber optic cable reduces susceptibility to electromagnetic interference and ensures stable signal transmission.