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					Originally Posted by Mark Dexter
					
				 
				Anyone know the technology they use to run the clock? You'd have to have a pretty long cord to go all the way up and down the sideline. 
			
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 That is exactly what they do.  The ECO and the 25 move together and stay at the LOS and there is a manager that is assigned to them to handle the cable.
The ECO is also used to let the crew know if a pass was thrown from beyond the LOS for example.