Installation guide

Chapter 5: Accounting for Bumper Rails 41
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Perform this step ONLY if you use Type A or B connections to your Pinsetters and you have bumper rails fitted.
Skip this step if you use a Type C connection (Brunswick GS series)
The Duo system relies on the ability to detect that a ball has gone past in order to start the scoring software
routine. However, bumper rails can interfere with this because, if the Duo Camera unit is positioned incorrectly, the
rail can cut the beam when it is raised or extended. No matter how the Duo Camera unit is mounted, the Ball
Detector must be below the top of the ball when it is in the gutter. Otherwise a gutter ball will not result in a miss
score.
No Bumpers
Where no bumpers have been installed on the lanes, securely attach the Duo Camera Module directly to the
capping, which has been secured in Chapter 4 above. Make sure that a ball will cut the ball detector beam when it is
in the gutter.