LED and Keypad-Switch Functions
PN 15842:K 7/23/2002 45
5.2 ACM-16AT, ACM-32A, and Expanders
5.2.1 ACM-16AT
anunc16.tif
Local Silence/Acknowledge Switch. Performs multiple
functions:
• When pressed, it first lights all the LEDs on the
ACM-16AT Series control module (except the
On-line LED) and then each expander. Piezo sounds for as
long as the switch is held down.
• It acknowledges all status changes for both the annunciator
and the expanders. Flashing LEDs will latch on solid and
the piezo will be silenced.
Note: In systems set for manual override mode, it is used as
the manual override key to toggle between automatic
operation or manual override operation for all points.
On-line LED. Flashes green during communication with the
control panel.
System Trouble LED. Glows yellow for all trouble conditions
in the system, including points or zones not mapped to the
annunciator/expanders.
Note: In AM2020/AFP1010 systems, this LED may also
indicate manual override mode.
Point-Active LED. Flashes to indicate an active point; after
being acknowledged it glows until reset. LED color varies by
model number; see chart below.
Trouble LED. Flashes to indicate a trouble situation. After
being acknowledged it glows until reset. If communication
with control panel is broken, all trouble LEDs flash.
LED color varies by model number; see chart below.
Control Switch. Functions as a local Lamp Test for the two
LEDs dedicated to a point. Control switches can be used to
execute such system functions as ACKNOWLEDGE, SIG-
NAL SILENCE, and SYSTEM RESET. Switches can also be
used to control the states of various output circuits.
Model
Number ACM-16AT ACM-16ATG ACM-16ATY ACM-16CS4
ACM-
16ATCS
Color of
Point-active
LED
Red Green Yellow
12 Red,
4 Yellow
8 Red,
8 Yellow
Color of
Trouble
LED
Yellow Yellow Yellow Yellow Yellow
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