Fischer Monitor Switch

Click for a bigger pic of the closed switch (771x433, 19 KB)

Click for a bigger pic of the open switch (781x598, 62 KB)

A relais-based monitor-switch by Fischer Hard- and Software, ca. 1992.

This switch is for the monitor signal only - no keyboard, no mouse. It was intended for bridgeboard users with a separate VGA card on the PC-side. The switch cannot be recommended for higher resolutions than 640x480, since there is no amplification of the signal as in "real" KVM-switches. The use of relais is considered to be particularly careful with the monitor.

1 sub-d 15-pin male connector (to monitor)
2 sub-d 15-pin female connectors (to gfx boards)
toggle switch
metal case
external power supply (9V) with a firmly mounted cable

Hint: If it does not work any more, replace the LEDs inside, especially the double-pack (the red ones in the photo).

Thanks to Rainer Schreurs