This Recommendation specifies the Q3 interfaces between a Service Node (SN) and the Telecommunications Management Network (TMN) and between an Access Network (AN) and the TMN for the management associated with VB5.2 interfaces [4].The managed object classes needed in addition to those defined for VB5.1 interfaces [3] in Recommendation Q.832.1 [13] are defined in this Recommendation. The interface specified is that between TMN Network Elements or Q-Adapters which interface to TMN Operations Systems (OSs) without mediation and between OSs and Mediation Devices, as defined in Recommendation M.3010 [5].