Operation
LED Indicators
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Document 51338 Rev. B 08/24/05 P/N 51338:B
2.3
LED Indicators
2.3.1 AC Power
This is a green LED which illuminates if AC power is applied to the
host FACP. The green LED will turn off if AC power to the host
FACP is lost.
2.3.2 Alarm
This is a red LED that turns on steady when one or more fire alarms
occur. The Alarm LED turns off when the Reset switch is pressed.
2.3.3 Supervisory
This is a yellow LED that turns on steady when one or more supervi-
sory conditions occur, such as a sprinkler valve tamper condition. It
turns off when the Reset switch is pressed.
2.3.4 Trouble
This is a yellow LED that turns on steady when one or more trouble
conditions occur. The LED turns off when all trouble conditions are
cleared. This LED will also illuminate if the microprocessor watch-
dog circuit within the LCD-80F is activated.
2.3.5 Alarm Silenced
This is a yellow LED that turns on when the Silence switch is
pressed to turn off the Notification Appliance Circuits. The LED
turns off when the NACs turn back on or when the alarm condition is
cleared and the FACP is reset back to a normal condition.
