686-554 Refcode_686-554


		
		
		Explanation
 Port async external loopback test failed (modem signals). 
		

		
		Response
			No action is required.

		

		
		
		
		
		
		Problem determination
			No action is required.

		

		
		
		
		
		
		Failing Item
			
			Find the failing function code in Failing function code list.

				
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