System for achieving alarm masking processing

Details System for achieving alarm masking processing System for achieving alarm masking processing

1995-05-19

1997-06-03

Chin, Wellington

Multiplex communications

Diagnostic testing

Fault detection

370399, 370426, 34082516, 34082517, H04J 314

Patent

active

056362064

ABSTRACT:
An alarm masking system is provided which is capable of implementing alarm priority processing or alarm inhibit processing in ATM transmission equipment. In ATM transmission equipment, a received virtual path or virtual channel is switched by means of a switching unit and then sent to an interface unit. In doing this, if a higher priority alarm is detected or received at a reception side interface unit, an intra-office tag is added to the alarm cell and then it is output, so that by detecting this intra-office tag it is possible to inhibit generation of lower priority alarms in response to the higher order alarm.

REFERENCES:
patent: 5274641 (1993-12-01), Shobatake et al.
patent: 5343462 (1994-08-01), Sekihata et al.
patent: 5359600 (1994-10-01), Ueda et al.
patent: 5461607 (1995-10-01), Miyagi et al.

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