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				|  | Master Clocks
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Master Clocks provide wall clock or signal devices a timing signal to 
synchronize slave system clocks on a clock system or network and/or trigger 
bells/horns to signal time period alerts like break times, start and end time, 
or even class dismissal times. | 
					
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			     PCSignals USA TASC (Time and Signal Controller) Unit
			 
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			     Lathem LTR8-512 series Master Controller
			 
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			     Pyramid 5024 Bell Ringer (24VDC) runs up to 4 circuits with up to 50 events per zone.
			 
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			     Pyramid 7000 Master Controller Master Clock runs up to 50 clocks and 15 bells from a single zoneand supports up to 300 events
			 
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			     Pyramid 7050 Clock booster is used to boost the signal for up to 200 system clocks.
			 
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