Huawei OptiX OSN 3500 Routine Maintenance page 30

There are two ways to mute alarm:

1 the ALC switch on SCC/CXL1/4/16 board

Short

Long

Attention: better leave ALC upward

2 the Alarm Mute switch (MUTE):

OFF---the audio alarm will be closed thoroughly;
ON---the audio alarm will be reported.
Alarm Muting
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