The ALGE SF3 system comes in two types.
The SF3P with token or coin acceptor start box.
The SF3L with simple Start Light control.
Electronics and control of the system are all in the Special SF3 D-line display. The connections for the start controller are made at the opposite end of the D-line from the normal controls. Special tamper proof covers then attach to keep smart boys from reprogramming the D-line.
The D-line can also be used as a standard display with timers and software. Just reprogram it to be a data receiver.
AC or Battery powered. System works 100% with either power source.
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