General
Video format	HDMI
Maximum resolution	1080p
Plug connection	LC
Maximum range	10 km
Compatibility	modular DKM extender housings, DKM FX, DKM FXC
Warranty	2 years Double Diamond™
TAA-compliant

The BlackBox ACX1MR-HDO-SM is a modular DKM receiver base module for KVM extender systems, specifically designed for extending HDMI video and USB signals over long distances. It serves as the receiver module in the KVM system and is installed in a modular DKM extender housing, where it receives signals from a transmitter at the computer and forwards them to a local console. The module supports transmission of HDMI video with a maximum resolution of 1080p and provides two USB HID ports for keyboard and mouse. The connection is made via single-mode fiber optic cable with LC connectors, enabling distances up to 10 km. The modules are designed for use in point-to-point connections or in KVM matrix switching systems of the DKM FX and DKM FXC series.

Applications
This module is suitable for professional IT infrastructures where centralized control of computers over long distances is required, for example in data centers, control rooms, or distributed work environments. The use of fiber optic cable enables stable, interference-free signal transmission over long distances, which is particularly advantageous in critical applications. The modular design allows flexible adaptation to different requirements without replacing the entire system.

Functions and Equipment in Detail
The ACX1MR-HDO-SM features an HDMI video input and two USB ports for keyboard and mouse. Signals are transmitted via single-mode fiber optic cable with LC connectors, achieving a maximum range of 10 km. Transmission is pixel-accurate, with a maximum resolution of 1080p. The modules are part of a modular system consisting of housings with 2, 4, 6, or 21 slots, where each housing requires at least one base module. Configuration is achieved by combining transmitter and receiver modules, with transmitters installed at the computer and receivers at the console.

Technology Explained Simply
The use of single-mode fiber optic cable enables high bandwidth and minimal signal loss over long distances. LC connectors are standardized and provide a secure, mechanically stable connection. HDMI transmission occurs at a resolution up to 1080p, which is sufficient for most professional applications. The USB HID interfaces ensure direct control of keyboard and mouse, with signals transmitted transparently, requiring no additional drivers or software. The modules are designed for use in switched environments and can be integrated into KVM matrix systems such as DKM FX or DKM FXC.

Compatibility and Accessories
The module is specifically designed for use in modular DKM extender housings and must be combined with a transmitter module at the computer. It is compatible with KVM matrix switching systems DKM FX and DKM FXC. The connection is made via single-mode fiber optic cable, with modules equipped with LC connectors. The modules are TAA-compliant, although the note “except ACX2MT-DLHS-2S” is not relevant to the current module.

Installation and Mounting
Installation involves inserting the module into a modular DKM extender housing. The modules are designed for use in rack systems and are inserted into the appropriate slots. Cabling is done via single-mode fiber optic cable with LC connectors, establishing the connection between transmitter and receiver. Configuration is performed by selecting the appropriate modules for sender and receiver, with connections made accordingly at the devices.

Operational Advantages
The modular design allows flexible adaptation to different requirements without replacing the entire system. The use of fiber optic cable ensures stable, interference-free signal transmission over long distances. Pixel-accurate transmission guarantees high image quality, and transparent USB transmission enables direct control of keyboard and mouse. Integration into KVM matrix systems allows centralized control of multiple computers from a single location.

Warranty
The module is supplied with a 2-year Double Diamond™ warranty (standard), which includes comprehensive support and repair services.