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LARGE SYSTEM APPLICATION 

The 490D Series IR receiver is compatible with all Xantech Connecting 
Blocks. Different connecting blocks are provided for application specific 
situations. For instance, in the diagram below, a 791-44 connecting block is 
used to control several components. 
 

 

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

 
 
 
 

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