In telecommunication, an extended superframe is a T-carrierframing technique in which framing requiring less frequent synchronization than the original T-carrier superframe format is provided for D-4 formatting and for on-line, real-time testing of circuit capability and operating condition.
Note: Less-frequent synchronization frees overhead bits for use in testing and monitoring.
... that Vronsky is about to propose to her.
The following morning Stiva and Vronsky are at the station to welcome Anna and Vronsky's mother respectively. This is ...