
	The 
IW1RT interface is to be 
	used concurrently with either of our 
ICBUW1,
	
OCBUW1 or 
	
OKBUW1 Products. The 
	
IW1RT device in effect is a 
	Wiegand converter to the RS232 port. Wiegand protocol is a special security protocol 
	sending bit strings of specified length and specified content. When the bit string 
	contained in a card is read and recognized by the 
IW1RT interface,
	 this last in turn sends back an acknowlegment 
	to one of our access control devices, mentioned above. 
	
	Technical Specifications