Digital image transmission between three labs via fibre optic
The Centre for Dental, Oral and Maxillofacial Medicine (Carolinum) is part of the Faculty of Medicine at Goethe University Frankfurt. As early as 2003, the first videodidact® Select systems from EBS were installed. In January 2023, the old VGA systems were replaced by alphadidact® Digital multimedia systems. In three labs with almost 100 simulation stations in total, dental students are now trained using state-of-the-art technology.

Touchscreen in room 126 | 1 + 54 simulation stations + 6 external connections + links to rooms 116 and 125
Challenge
The three labs were to be networked with each other. A microscope signal should be transmitted at the touch of a button to around 100 screens in all three rooms – latency-free and in high digital resolution. In addition, flexible control of the workstations in the local lab and selective signal transmission to the other rooms was required.
Solution
A bidirectional fibre optic connection links all three labs. A customised touchscreen enables control of the workstations in the local lab as well as signal transmission to the other training rooms. An iPad with the EBS alphadidact app is also available. More than 100 digital HDMI inputs and outputs ensure high flexibility – microscope, document camera, laptop or tablet can be connected and the signal sent directly to the desired screens. Each workstation has a signal input; every participant can become a presenter.
Results
At the touch of a button, a high-resolution microscope signal is transmitted latency-free to around 100 screens. Participants in the back rows follow the training content in optimum quality.