Technical Details - RaceAmerica 3850C Owner's Manual

has failed to maintain alignment while the Timer
AC4 was performing realtime testing after a car
passed through the start line beam. This message
will disappear when another message is displayed
in the Status Display. It will appear each time the
start line alignment is detected as bad.
This message confirms all timers have been
stopped and are ready for the next run to begin
with the next run number.
This message indicates the starting of a new
timer. It will appear every time the starting line
beam is interrupted by a car or the manual start
key is pressed on the keypad. The four timers in
the Timer Display are rotated downward. The
topmost timer of the Timer Display is reset to zero
and starts counting.
FiniSH
This message indicates the Finish of the
longest running timer. It will appear every time
the finish line beam is interrupted by a car or the
manual finish key is pressed on the keypad.
The Split message will appear briefly every
time the Continue key [5] is pressed on the keypad
in dual sensor modes. This allows for a 'split time
finish' to be restarted.

TECHNICAL DETAILS

Timer AC4 is designed to interface with third
party race management software. The timer sends
signals to the PC each time a car breaks the finish
line beam. The following communication strings
are sent to the PC:
Car finishes:
or
StoP
StArt
SPLit
[hex80]fffsss[cr][lf]
[hex80]fffssm[cr][lf]
RaceAmerica Model 3850 Timer AC4
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