EST3 Installation and Service Manual Y.1
Y
Glossary
A device or zone An alarm device or zone
ACDB Access Control Database program. Software that lets end users
create and maintain an access control database. The program
communicates with the system either by direct RS-232
connection, or by telephone lines to a 3-MODCOM.
activate To turn on or energize. Pertains to outputs (including logical
outputs).
address A number used to uniquely identify a device, output, panel, etc.
within an EST3 system
alarm The state of a fire alarm initiating device that has detected a
smoke or fire condition. The state of a security device that has
been triggered.
alarm silence timer A panel option that automatically silences the notification
appliance circuits (NACs) after a preprogrammed time limit after
the last alarm
alarm silence or reset inhibit
timer
A panel option that prevents anyone from silencing notification
appliance circuits (NACs) or resetting the panel for a
programmed period after the last alarm
AND statement A system input that activates when ALL the input conditions as
indicated in its AND statement list, are active
audible circuit A notification appliance circuit that is turned OFF when the
Alarm Silence switch is pressed.
change of state Occurs whenever an input zone or device changes from a
restored to an active condition, or from the active condition
back to the restored condition
Class A IDC A circuit, connected directly to initiating devices, that signals a
trouble condition upon an open condition on the circuit. All
devices wired on the circuit to continue to operate in the event
of a single open. Similar to Style D & E integrity monitoring.
Class A NAC A circuit, connected directly to notification appliances, that
signals a trouble condition upon an open or shorted condition
on the circuit. All appliances wired on the circuit to continue to
operate in the event of a single open. Similar to Style Z integrity
monitoring.
Class B IDC A circuit, connected directly to initiating devices, that signals a
trouble condition upon an open condition on the circuit. All
devices wired on the circuit to continue to operate up to the
location of a break. Similar to Styles A, B, C, & D integrity
monitoring.
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