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Q.551 : Transmission characteristics of digital exchanges  

Recommendation Q.551

In force components
Number
 Title Status
Q.551 (01/02)
  		Transmission characteristics of digital exchanges   In force
 
 
Superseded and Withdrawn components
Number
 Title Status
Q.551 (11/88)
  		Transmission characteristics of digital exchanges  
Replaces Q.507 (1984) and Q.517 (1984) 		Superseded
Q.551 (01/94)
  		Transmission characteristics of digital exchanges   Superseded
Q.551 (11/96)
  		Transmission characteristics of digital exchanges   Superseded

 

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Updated : 2008/04/24