Comment by boznz

In 1985 I made a similar panel which had 16 lights and mechanical switches and installed it in a rack in an operations center in GCHQ just to make it a bit more colorful. One day I came back from leave and the boss was really mad at me as they had been showing around some VIP, who stopped at the panel and asked the area director what it did. As all the technicians had been evacuated for the tour, nobody had a clue.