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

1985-08-12

1987-08-18

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 16, 379 5, H04J 116

Patent

active

046882081

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.

REFERENCES:
patent: 4486877 (1984-12-01), Turner
patent: 4545049 (1985-10-01), Kammerer et al.
patent: 4545053 (1985-10-01), Raamot
patent: 4573044 (1986-02-01), McConachie et al.

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