Time division exchange for carrying out a loop-back test

Details Time division exchange for carrying out a loop-back test Time division exchange for carrying out a loop-back test

H - Electricity

04

J

344/1, 363/10.1

H04J 3/00 (2006.01) H04M 3/24 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1235828

ABSTRACT A time division exchange interchanges predetermined time slots of a time division multiplexed signal and returns it to a network during a loop-back test. A buffer memory in a time division multiplexed trunk is used to interchange the predetermined time slots. Alternatively, the buffer memory is provided in a return loop for use during the loop-back test. Therefore, it can be determined that the received signal is sent from another exchange and the loop-back test can be performed using ordinary exchanging processing procedures.

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