The images is before I added the DB9 connector etc, but this give you a general Idea
The box is now quite overcrowded and attaching the connectors is quite an headacke. Hope I do not have to do this again. The monitor is fitted on the box's top cover and connects to the HDMI, USB and power Isolation DC-DC converter, the Tracopower's TEN? 15W DC Isolated converter.
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73 de Eugene / ZR4EM