General
Number of video inputs	2 DVI-D
Number of video outputs	4 DVI-D
Number of audio inputs	2 3.5 mm stereo sockets
Number of audio outputs	4 3.5 mm stereo sockets
Supported maximum resolution	1600 x 1200 at 60 Hz
Maximum DVI cable length	5 m
Automatic scan interval	8, 15, 30, 45 Seconds
Operation temperature	5 to 40 °C
Current supply	100–240 VAC
Frequency	50–60 Hz
Height	4,1 cm (1HE)

The BlackBox AC1124A is a 2x4 DVI-D matrix switch with integrated audio transmission, designed for distributing HD video and audio signals from two sources to four separate display and speaker devices. The device enables flexible control of input and output signals in applications such as digital signage systems, where different content is to be displayed simultaneously or sequentially on multiple screens. Signal routing is performed via DVI-D and 3.5 mm stereo jack connectors, with each output providing both a video signal and an audio signal.

Applications
This matrix switch is particularly suitable for professional applications in the field of information and advertising presentation, such as in shopping centres, train stations, conference rooms, or educational environments. It enables the simultaneous display of different sources on multiple screens, with the source selection for each output being individually controllable. This function is ideal for systems requiring dynamic switching of content between multiple screens or parallel display.

Functions and Features in Detail
The device features two DVI-D inputs and four DVI-D outputs, with each output signal transmitting both video and audio signals. Switching can be performed either via the buttons on the front panel of the device or via a wireless remote control with a range of up to 5 m. The remote control allows convenient operation without physical access to the device. Additionally, the switch can operate in Auto-Scan mode, with scan intervals adjustable between 8, 15, 30, and 45 seconds. System settings are automatically saved and restored after a power failure, ensuring continuous operational readiness.

Technology Explained Simply
The matrix switch operates using DVI-D technology, which transmits digital video signals and supports a maximum resolution of 1600 x 1200 at 60 Hz. The DVI-D connection is designed for direct transmission of digital signals without analog conversion, ensuring high image quality. Integrated audio transmission occurs via 3.5 mm stereo jacks, enabling synchronized transmission of audio and video signals. The maximum cable length for DVI connections is 5 m, which is sufficient for typical installations in rooms or smaller racks. Power supply is provided via an external power adapter with a voltage of 100–240 VAC and a frequency of 50–60 Hz, with the device automatically detecting the voltage (autosensing).

Compatibility and Accessories
The switch is compatible with devices featuring DVI-D connectors and 3.5 mm stereo audio jacks. The connectors are standardized and allow connection to a wide range of sources such as computers, media players, or set-top boxes, as well as monitors, projectors, or speakers. A rack mounting kit is available for installing the device in a 19-inch rack. The unit height is 1HE, saving space in the rack.

Installation and Mounting
Installation is performed via the designated connectors on the front and rear panels of the device. The front panel features the control buttons and the remote control receiver, while the rear panel includes the input and output connectors for video and audio. The device can be used either freestanding or mounted in a rack, with the rack mounting kit available as an optional accessory.

Operational Advantages
The BlackBox AC1124A offers reliable and flexible signal distribution with individual control per output. Automatic saving of settings after a power failure ensures stable operational continuity. The remote control enables convenient operation, and the Auto-Scan function simplifies usage in applications where manual control is not required. The compact form factor with a height of 1HE makes the device particularly suitable for use in racks.

Note: Batteries are not included in the delivery scope.