PST client Ryegate Show Services uses ALGE S4 timers with TED transmitters and RLS1n/d through beam photocells. The S4 is connected to the Broder's Skunkware equestrian software that in turn drives Daktronics V4600 and V7000 glow cube displays.
http://www.ryegate.com/scoreboard.htm
This link takes you to some really nice installation pictures.
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