Installation
and
Operation
Manual
64
Appendix
‐
E:
Glossary
and
Acronyms
Alarm
Signal.
A
signal
indicating
an
emergency
requiring
immediate
action,
such
as
an
alarm
for
fire
from
a
manual
station
or
an
automatic
smoke
detector.
Alarm
Silence
Inhibit.
An
option
that
prevents
a
human
operator
from
silencing
the
notification
appliances
for
a
preset
period
of
time.
Alarm
System.
A
combination
of
compatible
initiating
devices,
control
panels,
and
notification
appliances
designed
and
installed
to
produce
an
alarm
signal
in
the
event
of
a
fire.
Alarm
Verification.
A
preset
option
that
causes
the
control
panel
to
verify
alarms
originated
by
smoke
detectors
before
indicating
an
alarm.
ALU.
Addressable
Loop
Unit.
AMI.
Advanced
Machine
Interface.
Annunciator.
A
remotely
located,
electrically
powered
display
separate
from
the
control
panelwith
LEDs
or
lamps
to
indicate
the
states
of
the
fire
alarm
system.
Audible
Signal.
A
sound
produced
by
one
or
more
audible
notification
appliances,
such
as
bells
or
horns,
in
response
to
the
operation
of
an
initiating
device.
Class
A
Circuit.
An
initiating
device
or
notification
appliance
circuit
within
which
all
components
remain
fully
functional,
even
though
a
single
open
or
a
ground
is
present
in
the
circuit.
Class
B
Circuit.
An
initiating
device
or
notification
appliance
circuit
within
which
some
or
all
components
may
be
disabled
with
a
single
open
or
a
ground
exists
in
the
circuit.
CPU.
Central
Processing
Unit.
Detector
‐
FirePrint™.
An
intelligent
fire
detector
that
blends
photoelectric,
thermal,
and
neural
network
technologies
for
superior
protection
without
false
alarms.
Detector
‐
Smoke,
Photoelectric
Type.
A
detector
using
the
photoelectric
principle
of
reflection
or
obstruction
of
light
by
smoke.
Detector
‐
Thermal
Type.
An
addressable
thermal
sensor
programmable
as
either
a
fixed
temperature
(135°
F)
or
as
a
rate
of
rise
detector.
Enable
/
Disable.
Refers
to
the
state
of
individual
circuits
(inputs
and
outputs)
or
logic
functions,
regardless
of
the
presence
of
its
corresponding
modules.
End
Of
Line
(EOL).
A
device
used
to
terminate
a
supervised
circuit.
FACP.
Fire
Alarm
Control
Panel.