EDWARDS SYSTEMS TECHNOLOGY EST3 - Page 92

Operation sequence charts
B.2 EST3 System Operation Manual
Table B-1: Fire Alarm Sequence - 3-LCD Display Response
EventØ
3-LCD DisplayÚ
Normal
First
Alarm
Subsequent
Alarm
Alarm
Restore Reset
Power LED On On On On On
Alarm LED Off Flashing Flashing Flashing Off
Trouble LED Off Off Off Off Off
Panel buzzer Off On On Off Off
3-LCD text display Title
screen
Current event
& last
window
Updates last
event window
No change
event latched
until reset
Title
screen
Alarm counter on
3-LCD display
0000 0001 0002 0002 0000
Alarm history counter
on 3-LCD display
0000 0000 0000 0000 0001
Reset Switch Enabled Disabled for
silence Inhibit
period
Enabled after
Inhibit period
expires
No change Disabled
Table B-2: Fire Alarm Sequence - Common Feature Response
EventØ
3-LCD DisplayÚ
Normal
First
Alarm
Subsequent
Alarm
Alarm
Restore Reset
Alarm Silence Inhibit
Timer
Off Timer starts Runs until
expired
No change Off
Alarm Silence LED Off Yellow after
silence
Yellow after
silenced
No change Off
Alarm Silence Timer Off Timer starts,
alarm
silenced if
timer expires
Restarts,
alarm silenced
if timer expires
No change Off
Page Inhibit Timer Off
Timer starts,
prohibits
paging until
timer expires
No change No change Off
Auto General Alarm
Signal Timer (re-
cycle)
Off Timer starts,
total EVAC if
timer expires
No change
unless
canceled by
user
No change Off
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