Network Graphic Annunciator (NGA) Operations Guide P/N 9020-0675:B1 03/21/13 21
NOTE: FIRE AND MNS RESET BUTTONS OPERATION:
The Fire and MNS Reset buttons operate independently of each other. When both Fire and MNS
Alarm conditions exist, the highest priority condition must be reset first followed by the lower
priority condition.
- For FIRE overrides MNS, the Fire Alarm condition must be reset first.
- For MNS overrides FIRE, reset the MNS Alarm first, and then reset the Fire Alarm condition.
You cannot press the MNS button to reset Fire and you cannot press the Fire button to reset
MNS. If either an active Fire Alarm Event or an active MNS Alarm Event occurs, the following
conditions take place.
- The active Fire button blinks red. The MNS button remains deactivated and appears gray.
After you press the Fire button, the System resets the Fire button, but does not reset the MNS
button.
- The active MNS button blinks blue. The Fire button remains deactivated and appears gray.
After you press the MNS button, the Systems resets the MNS button, but does not reset the
Fire button.
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